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);
5683 } else if (klass == mono_defaults.stringbuilder_class) {
5684 // FIXME: What to do here ?
5686 /* byval [Out] marshalling */
5688 /* FIXME: Handle null */
5691 mono_mb_emit_ldloc (mb, conv_arg);
5692 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5693 mono_mb_emit_stloc (mb, 0);
5696 mono_mb_emit_ldarg (mb, argnum);
5697 mono_mb_emit_stloc (mb, 1);
5699 /* emit valuetype conversion code */
5700 emit_struct_conv (mb, klass, FALSE);
5704 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5705 if (klass->delegate) {
5706 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5707 mono_mb_emit_stloc (mb, 3);
5711 /* The class can not have an automatic layout */
5712 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5713 mono_mb_emit_auto_layout_exception (mb, klass);
5717 mono_mb_emit_stloc (mb, 0);
5718 /* Check for null */
5719 mono_mb_emit_ldloc (mb, 0);
5720 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5721 mono_mb_emit_byte (mb, CEE_LDNULL);
5722 mono_mb_emit_stloc (mb, 3);
5723 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5725 mono_mb_patch_branch (mb, pos);
5728 mono_mb_emit_ldloc (mb, 0);
5729 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5730 mono_mb_emit_stloc (mb, 0);
5732 /* Allocate and set dest */
5733 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5734 mono_mb_emit_byte (mb, CEE_CONV_I);
5735 mono_mb_emit_icall (mb, mono_marshal_alloc);
5736 mono_mb_emit_byte (mb, CEE_DUP);
5737 mono_mb_emit_stloc (mb, 1);
5738 mono_mb_emit_stloc (mb, 3);
5740 emit_struct_conv (mb, klass, FALSE);
5742 mono_mb_patch_branch (mb, pos2);
5746 g_assert_not_reached ();
5757 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
5758 MonoMarshalSpec *spec,
5759 int conv_arg, MonoType **conv_arg_type,
5760 MarshalAction action)
5762 MonoMethodBuilder *mb = m->mb;
5763 static MonoMethod *get_object_for_native_variant = NULL;
5764 static MonoMethod *get_native_variant_for_object = NULL;
5766 if (!get_object_for_native_variant)
5767 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
5768 g_assert (get_object_for_native_variant);
5770 if (!get_native_variant_for_object)
5771 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
5772 g_assert (get_native_variant_for_object);
5775 case MARSHAL_ACTION_CONV_IN: {
5776 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
5779 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5781 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5783 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5786 mono_mb_emit_ldarg (mb, argnum);
5788 mono_mb_emit_byte(mb, CEE_LDIND_REF);
5789 mono_mb_emit_ldloc_addr (mb, conv_arg);
5790 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5794 case MARSHAL_ACTION_CONV_OUT: {
5795 static MonoMethod *variant_clear = NULL;
5798 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
5799 g_assert (variant_clear);
5802 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5803 mono_mb_emit_ldarg (mb, argnum);
5804 mono_mb_emit_ldloc_addr (mb, conv_arg);
5805 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5806 mono_mb_emit_byte (mb, CEE_STIND_REF);
5809 mono_mb_emit_ldloc_addr (mb, conv_arg);
5810 mono_mb_emit_managed_call (mb, variant_clear, NULL);
5814 case MARSHAL_ACTION_PUSH:
5816 mono_mb_emit_ldloc_addr (mb, conv_arg);
5818 mono_mb_emit_ldloc (mb, conv_arg);
5821 case MARSHAL_ACTION_CONV_RESULT: {
5822 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5823 mono_mb_emit_exception_marshal_directive (mb, msg);
5827 case MARSHAL_ACTION_MANAGED_CONV_IN: {
5828 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5831 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5833 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5835 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5839 mono_mb_emit_ldarg (mb, argnum);
5841 mono_mb_emit_ldarg_addr (mb, argnum);
5842 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5843 mono_mb_emit_stloc (mb, conv_arg);
5847 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
5848 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5849 mono_mb_emit_ldloc (mb, conv_arg);
5850 mono_mb_emit_ldarg (mb, argnum);
5851 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5856 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
5857 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5858 mono_mb_emit_exception_marshal_directive (mb, msg);
5863 g_assert_not_reached ();
5869 #endif /* DISABLE_COM */
5870 #endif /* DISABLE_JIT */
5873 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
5875 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
5876 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
5878 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
5880 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
5892 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
5893 MonoMarshalSpec *spec,
5894 int conv_arg, MonoType **conv_arg_type,
5895 MarshalAction action)
5899 case MARSHAL_ACTION_CONV_IN:
5900 *conv_arg_type = &mono_defaults.object_class->byval_arg;
5902 case MARSHAL_ACTION_MANAGED_CONV_IN:
5903 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5907 MonoMethodBuilder *mb = m->mb;
5908 MonoClass *klass = mono_class_from_mono_type (t);
5909 gboolean need_convert, need_free;
5910 MonoMarshalNative encoding;
5912 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5915 case MARSHAL_ACTION_CONV_IN:
5916 *conv_arg_type = &mono_defaults.object_class->byval_arg;
5917 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5919 if (klass->element_class->blittable) {
5920 mono_mb_emit_ldarg (mb, argnum);
5922 mono_mb_emit_byte (mb, CEE_LDIND_I);
5923 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
5924 mono_mb_emit_stloc (mb, conv_arg);
5927 guint32 label1, label2, label3;
5928 int index_var, src_var, dest_ptr, esize;
5929 MonoMarshalConv conv;
5930 gboolean is_string = FALSE;
5932 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5934 eklass = klass->element_class;
5936 if (eklass == mono_defaults.string_class) {
5938 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5940 else if (eklass == mono_defaults.stringbuilder_class) {
5942 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5947 if (is_string && conv == -1) {
5948 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
5949 mono_mb_emit_exception_marshal_directive (mb, msg);
5953 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5954 mono_mb_emit_ldarg (mb, argnum);
5956 mono_mb_emit_byte (mb, CEE_LDIND_I);
5957 mono_mb_emit_stloc (mb, src_var);
5960 mono_mb_emit_ldloc (mb, src_var);
5961 mono_mb_emit_stloc (mb, conv_arg);
5962 mono_mb_emit_ldloc (mb, src_var);
5963 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5966 esize = sizeof (gpointer);
5967 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
5968 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
5970 esize = mono_class_native_size (eklass, NULL);
5972 /* allocate space for the native struct and store the address */
5973 mono_mb_emit_icon (mb, esize);
5974 mono_mb_emit_ldloc (mb, src_var);
5975 mono_mb_emit_byte (mb, CEE_LDLEN);
5977 if (eklass == mono_defaults.string_class) {
5978 /* Make the array bigger for the terminating null */
5979 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
5980 mono_mb_emit_byte (mb, CEE_ADD);
5982 mono_mb_emit_byte (mb, CEE_MUL);
5983 mono_mb_emit_byte (mb, CEE_PREFIX1);
5984 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5985 mono_mb_emit_stloc (mb, conv_arg);
5987 mono_mb_emit_ldloc (mb, conv_arg);
5988 mono_mb_emit_stloc (mb, dest_ptr);
5990 /* Emit marshalling loop */
5991 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5992 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5993 mono_mb_emit_stloc (mb, index_var);
5994 label2 = mono_mb_get_label (mb);
5995 mono_mb_emit_ldloc (mb, index_var);
5996 mono_mb_emit_ldloc (mb, src_var);
5997 mono_mb_emit_byte (mb, CEE_LDLEN);
5998 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6000 /* Emit marshalling code */
6003 mono_mb_emit_ldloc (mb, dest_ptr);
6004 mono_mb_emit_ldloc (mb, src_var);
6005 mono_mb_emit_ldloc (mb, index_var);
6006 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6007 mono_mb_emit_icall (mb, conv_to_icall (conv));
6008 mono_mb_emit_byte (mb, CEE_STIND_I);
6010 /* set the src_ptr */
6011 mono_mb_emit_ldloc (mb, src_var);
6012 mono_mb_emit_ldloc (mb, index_var);
6013 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6014 mono_mb_emit_stloc (mb, 0);
6017 mono_mb_emit_ldloc (mb, dest_ptr);
6018 mono_mb_emit_stloc (mb, 1);
6020 /* emit valuetype conversion code */
6021 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : -1);
6024 mono_mb_emit_add_to_local (mb, index_var, 1);
6025 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6027 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6029 mono_mb_patch_branch (mb, label3);
6031 if (eklass == mono_defaults.string_class) {
6032 /* Null terminate */
6033 mono_mb_emit_ldloc (mb, dest_ptr);
6034 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6035 mono_mb_emit_byte (mb, CEE_STIND_REF);
6038 mono_mb_patch_branch (mb, label1);
6043 case MARSHAL_ACTION_CONV_OUT:
6044 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6045 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);
6046 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6049 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6050 int param_num = spec->data.array_data.param_num;
6051 MonoType *param_type;
6053 param_type = m->sig->params [param_num];
6055 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6056 char *msg = g_strdup ("Not implemented.");
6057 mono_mb_emit_exception_marshal_directive (mb, msg);
6061 mono_mb_emit_ldarg (mb, argnum);
6063 /* Create the managed array */
6064 mono_mb_emit_ldarg (mb, param_num);
6065 if (m->sig->params [param_num]->byref)
6066 // FIXME: Support other types
6067 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6068 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6069 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6070 /* Store into argument */
6071 mono_mb_emit_byte (mb, CEE_STIND_I);
6074 if (need_convert || need_free) {
6075 /* FIXME: Optimize blittable case */
6077 guint32 label1, label2, label3;
6078 int index_var, src_ptr, loc, esize;
6080 eklass = klass->element_class;
6081 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6082 esize = sizeof (gpointer);
6083 else if (eklass == mono_defaults.char_class)
6084 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6086 esize = mono_class_native_size (eklass, NULL);
6087 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6088 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6091 mono_mb_emit_ldarg (mb, argnum);
6093 mono_mb_emit_byte (mb, CEE_LDIND_I);
6094 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6096 mono_mb_emit_ldloc (mb, conv_arg);
6097 mono_mb_emit_stloc (mb, src_ptr);
6099 /* Emit marshalling loop */
6100 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6101 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6102 mono_mb_emit_stloc (mb, index_var);
6103 label2 = mono_mb_get_label (mb);
6104 mono_mb_emit_ldloc (mb, index_var);
6105 mono_mb_emit_ldarg (mb, argnum);
6107 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6108 mono_mb_emit_byte (mb, CEE_LDLEN);
6109 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6111 /* Emit marshalling code */
6113 if (eklass == mono_defaults.stringbuilder_class) {
6114 gboolean need_free2;
6115 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6117 g_assert (conv != -1);
6120 mono_mb_emit_ldarg (mb, argnum);
6122 mono_mb_emit_byte (mb, CEE_LDIND_I);
6123 mono_mb_emit_ldloc (mb, index_var);
6124 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6127 mono_mb_emit_ldloc (mb, src_ptr);
6128 mono_mb_emit_byte (mb, CEE_LDIND_I);
6130 mono_mb_emit_icall (mb, conv_to_icall (conv));
6134 mono_mb_emit_ldloc (mb, src_ptr);
6135 mono_mb_emit_byte (mb, CEE_LDIND_I);
6137 mono_mb_emit_icall (mb, mono_marshal_free);
6140 else if (eklass == mono_defaults.string_class) {
6143 mono_mb_emit_ldloc (mb, src_ptr);
6144 mono_mb_emit_byte (mb, CEE_LDIND_I);
6146 mono_mb_emit_icall (mb, mono_marshal_free);
6151 /* set the src_ptr */
6152 mono_mb_emit_ldloc (mb, src_ptr);
6153 mono_mb_emit_stloc (mb, 0);
6156 mono_mb_emit_ldarg (mb, argnum);
6158 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6159 mono_mb_emit_ldloc (mb, index_var);
6160 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6161 mono_mb_emit_stloc (mb, 1);
6163 /* emit valuetype conversion code */
6164 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : -1);
6168 mono_mb_emit_ldloc (mb, src_ptr);
6169 mono_mb_emit_stloc (mb, loc);
6170 mono_mb_emit_ldloc (mb, loc);
6172 emit_struct_free (mb, eklass, loc);
6176 mono_mb_emit_add_to_local (mb, index_var, 1);
6177 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6179 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6181 mono_mb_patch_branch (mb, label1);
6182 mono_mb_patch_branch (mb, label3);
6185 if (klass->element_class->blittable) {
6186 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6188 mono_mb_emit_ldarg (mb, argnum);
6190 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6191 mono_mb_emit_ldloc (mb, conv_arg);
6192 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
6197 case MARSHAL_ACTION_PUSH:
6199 mono_mb_emit_ldloc_addr (mb, conv_arg);
6201 mono_mb_emit_ldloc (mb, conv_arg);
6204 case MARSHAL_ACTION_CONV_RESULT:
6205 /* fixme: we need conversions here */
6206 mono_mb_emit_stloc (mb, 3);
6209 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6211 guint32 label1, label2, label3;
6212 int index_var, src_ptr, esize, param_num, num_elem;
6213 MonoMarshalConv conv;
6214 gboolean is_string = FALSE;
6216 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6217 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6220 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6221 mono_mb_emit_exception_marshal_directive (mb, msg);
6225 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6226 mono_mb_emit_exception_marshal_directive (mb, msg);
6229 if (spec->native != MONO_NATIVE_LPARRAY) {
6230 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6231 mono_mb_emit_exception_marshal_directive (mb, msg);
6235 /* FIXME: t is from the method which is wrapped, not the delegate type */
6236 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6238 param_num = spec->data.array_data.param_num;
6239 num_elem = spec->data.array_data.num_elem;
6240 if (spec->data.array_data.elem_mult == 0)
6241 /* param_num is not specified */
6244 if (param_num == -1) {
6245 if (num_elem <= 0) {
6246 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6247 mono_mb_emit_exception_marshal_directive (mb, msg);
6252 /* FIXME: Optimize blittable case */
6254 eklass = klass->element_class;
6255 if (eklass == mono_defaults.string_class) {
6257 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6259 else if (eklass == mono_defaults.stringbuilder_class) {
6261 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6266 mono_marshal_load_type_info (eklass);
6269 esize = sizeof (gpointer);
6271 esize = mono_class_native_size (eklass, NULL);
6272 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6274 mono_mb_emit_byte (mb, CEE_LDNULL);
6275 mono_mb_emit_stloc (mb, conv_arg);
6277 /* Check param index */
6278 if (param_num != -1) {
6279 if (param_num >= m->sig->param_count) {
6280 char *msg = g_strdup ("Array size control parameter index is out of range.");
6281 mono_mb_emit_exception_marshal_directive (mb, msg);
6284 switch (m->sig->params [param_num]->type) {
6297 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6298 mono_mb_emit_exception_marshal_directive (mb, msg);
6305 mono_mb_emit_ldarg (mb, argnum);
6306 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6308 mono_mb_emit_ldarg (mb, argnum);
6309 mono_mb_emit_stloc (mb, src_ptr);
6311 /* Create managed array */
6313 * The LPArray marshalling spec says that sometimes param_num starts
6314 * from 1, sometimes it starts from 0. But MS seems to allways start
6318 if (param_num == -1) {
6319 mono_mb_emit_icon (mb, num_elem);
6321 mono_mb_emit_ldarg (mb, param_num);
6323 mono_mb_emit_icon (mb, num_elem);
6324 mono_mb_emit_byte (mb, CEE_ADD);
6326 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6329 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6330 mono_mb_emit_stloc (mb, conv_arg);
6332 if (eklass->blittable) {
6333 mono_mb_emit_ldloc (mb, conv_arg);
6334 mono_mb_emit_byte (mb, CEE_CONV_I);
6335 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6336 mono_mb_emit_byte (mb, CEE_ADD);
6337 mono_mb_emit_ldarg (mb, argnum);
6338 mono_mb_emit_ldloc (mb, conv_arg);
6339 mono_mb_emit_byte (mb, CEE_LDLEN);
6340 mono_mb_emit_icon (mb, esize);
6341 mono_mb_emit_byte (mb, CEE_MUL);
6342 mono_mb_emit_byte (mb, CEE_PREFIX1);
6343 mono_mb_emit_byte (mb, CEE_CPBLK);
6347 /* Emit marshalling loop */
6348 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6349 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6350 mono_mb_emit_stloc (mb, index_var);
6351 label2 = mono_mb_get_label (mb);
6352 mono_mb_emit_ldloc (mb, index_var);
6353 mono_mb_emit_ldloc (mb, conv_arg);
6354 mono_mb_emit_byte (mb, CEE_LDLEN);
6355 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6357 /* Emit marshalling code */
6359 g_assert (conv != -1);
6361 mono_mb_emit_ldloc (mb, conv_arg);
6362 mono_mb_emit_ldloc (mb, index_var);
6364 mono_mb_emit_ldloc (mb, src_ptr);
6365 mono_mb_emit_byte (mb, CEE_LDIND_I);
6367 mono_mb_emit_icall (mb, conv_to_icall (conv));
6368 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6371 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6372 mono_mb_emit_exception_marshal_directive (mb, msg);
6376 mono_mb_emit_add_to_local (mb, index_var, 1);
6377 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6379 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6381 mono_mb_patch_branch (mb, label1);
6382 mono_mb_patch_branch (mb, label3);
6386 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6388 guint32 label1, label2, label3;
6389 int index_var, dest_ptr, esize, param_num, num_elem;
6390 MonoMarshalConv conv;
6391 gboolean is_string = FALSE;
6394 /* Already handled in CONV_IN */
6397 /* These are already checked in CONV_IN */
6398 g_assert (!t->byref);
6399 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6400 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6402 param_num = spec->data.array_data.param_num;
6403 num_elem = spec->data.array_data.num_elem;
6405 if (spec->data.array_data.elem_mult == 0)
6406 /* param_num is not specified */
6409 if (param_num == -1) {
6410 if (num_elem <= 0) {
6411 g_assert_not_reached ();
6415 /* FIXME: Optimize blittable case */
6417 eklass = klass->element_class;
6418 if (eklass == mono_defaults.string_class) {
6420 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6422 else if (eklass == mono_defaults.stringbuilder_class) {
6424 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6429 mono_marshal_load_type_info (eklass);
6432 esize = sizeof (gpointer);
6434 esize = mono_class_native_size (eklass, NULL);
6436 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6439 mono_mb_emit_ldloc (mb, conv_arg);
6440 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6442 mono_mb_emit_ldarg (mb, argnum);
6443 mono_mb_emit_stloc (mb, dest_ptr);
6445 if (eklass->blittable) {
6447 mono_mb_emit_ldarg (mb, argnum);
6449 mono_mb_emit_ldloc (mb, conv_arg);
6450 mono_mb_emit_byte (mb, CEE_CONV_I);
6451 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6452 mono_mb_emit_byte (mb, CEE_ADD);
6454 mono_mb_emit_ldloc (mb, conv_arg);
6455 mono_mb_emit_byte (mb, CEE_LDLEN);
6456 mono_mb_emit_icon (mb, esize);
6457 mono_mb_emit_byte (mb, CEE_MUL);
6458 mono_mb_emit_byte (mb, CEE_PREFIX1);
6459 mono_mb_emit_byte (mb, CEE_CPBLK);
6463 /* Emit marshalling loop */
6464 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6465 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6466 mono_mb_emit_stloc (mb, index_var);
6467 label2 = mono_mb_get_label (mb);
6468 mono_mb_emit_ldloc (mb, index_var);
6469 mono_mb_emit_ldloc (mb, conv_arg);
6470 mono_mb_emit_byte (mb, CEE_LDLEN);
6471 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6473 /* Emit marshalling code */
6475 g_assert (conv != -1);
6478 mono_mb_emit_ldloc (mb, dest_ptr);
6481 mono_mb_emit_ldloc (mb, conv_arg);
6482 mono_mb_emit_ldloc (mb, index_var);
6484 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6486 mono_mb_emit_icall (mb, conv_to_icall (conv));
6487 mono_mb_emit_byte (mb, CEE_STIND_I);
6490 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6491 mono_mb_emit_exception_marshal_directive (mb, msg);
6495 mono_mb_emit_add_to_local (mb, index_var, 1);
6496 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6498 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6500 mono_mb_patch_branch (mb, label1);
6501 mono_mb_patch_branch (mb, label3);
6505 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6507 guint32 label1, label2, label3;
6508 int index_var, src, dest, esize;
6509 MonoMarshalConv conv = -1;
6510 gboolean is_string = FALSE;
6512 g_assert (!t->byref);
6514 eklass = klass->element_class;
6516 mono_marshal_load_type_info (eklass);
6518 if (eklass == mono_defaults.string_class) {
6520 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6523 g_assert_not_reached ();
6527 esize = sizeof (gpointer);
6528 else if (eklass == mono_defaults.char_class)
6529 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6531 esize = mono_class_native_size (eklass, NULL);
6533 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6534 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6536 mono_mb_emit_stloc (mb, src);
6537 mono_mb_emit_ldloc (mb, src);
6538 mono_mb_emit_stloc (mb, 3);
6540 /* Check for null */
6541 mono_mb_emit_ldloc (mb, src);
6542 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6544 /* Allocate native array */
6545 mono_mb_emit_icon (mb, esize);
6546 mono_mb_emit_ldloc (mb, src);
6547 mono_mb_emit_byte (mb, CEE_LDLEN);
6549 if (eklass == mono_defaults.string_class) {
6550 /* Make the array bigger for the terminating null */
6551 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6552 mono_mb_emit_byte (mb, CEE_ADD);
6554 mono_mb_emit_byte (mb, CEE_MUL);
6555 mono_mb_emit_icall (mb, mono_marshal_alloc);
6556 mono_mb_emit_stloc (mb, dest);
6557 mono_mb_emit_ldloc (mb, dest);
6558 mono_mb_emit_stloc (mb, 3);
6560 /* Emit marshalling loop */
6561 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6562 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6563 mono_mb_emit_stloc (mb, index_var);
6564 label2 = mono_mb_get_label (mb);
6565 mono_mb_emit_ldloc (mb, index_var);
6566 mono_mb_emit_ldloc (mb, src);
6567 mono_mb_emit_byte (mb, CEE_LDLEN);
6568 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6570 /* Emit marshalling code */
6572 g_assert (conv != -1);
6575 mono_mb_emit_ldloc (mb, dest);
6578 mono_mb_emit_ldloc (mb, src);
6579 mono_mb_emit_ldloc (mb, index_var);
6581 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6583 mono_mb_emit_icall (mb, conv_to_icall (conv));
6584 mono_mb_emit_byte (mb, CEE_STIND_I);
6587 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6588 mono_mb_emit_exception_marshal_directive (mb, msg);
6592 mono_mb_emit_add_to_local (mb, index_var, 1);
6593 mono_mb_emit_add_to_local (mb, dest, esize);
6595 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6597 mono_mb_patch_branch (mb, label3);
6598 mono_mb_patch_branch (mb, label1);
6602 g_assert_not_reached ();
6609 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6612 return &mono_defaults.int32_class->byval_arg;
6614 switch (spec->native) {
6615 case MONO_NATIVE_I1:
6616 case MONO_NATIVE_U1:
6617 return &mono_defaults.byte_class->byval_arg;
6618 case MONO_NATIVE_VARIANTBOOL:
6619 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6620 return &mono_defaults.int16_class->byval_arg;
6621 case MONO_NATIVE_BOOLEAN:
6622 return &mono_defaults.int32_class->byval_arg;
6624 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6625 return &mono_defaults.int32_class->byval_arg;
6631 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6633 MonoClass* conv_arg_class = mono_defaults.int32_class;
6635 switch (spec->native) {
6636 case MONO_NATIVE_I1:
6637 case MONO_NATIVE_U1:
6638 conv_arg_class = mono_defaults.byte_class;
6639 if (ldop) *ldop = CEE_LDIND_I1;
6641 case MONO_NATIVE_VARIANTBOOL:
6642 conv_arg_class = mono_defaults.int16_class;
6643 if (ldop) *ldop = CEE_LDIND_I2;
6645 case MONO_NATIVE_BOOLEAN:
6648 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6651 return conv_arg_class;
6655 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6656 MonoMarshalSpec *spec,
6657 int conv_arg, MonoType **conv_arg_type,
6658 MarshalAction action)
6662 case MARSHAL_ACTION_CONV_IN:
6664 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6666 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6669 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6670 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6672 *conv_arg_type = &conv_arg_class->this_arg;
6674 *conv_arg_type = &conv_arg_class->byval_arg;
6680 MonoMethodBuilder *mb = m->mb;
6683 case MARSHAL_ACTION_CONV_IN: {
6684 MonoType *local_type;
6686 guint8 ldc_op = CEE_LDC_I4_1;
6688 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6690 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6692 *conv_arg_type = local_type;
6693 conv_arg = mono_mb_add_local (mb, local_type);
6695 mono_mb_emit_ldarg (mb, argnum);
6697 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6698 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6699 mono_mb_emit_byte (mb, ldc_op);
6700 mono_mb_emit_stloc (mb, conv_arg);
6701 mono_mb_patch_branch (mb, label_false);
6706 case MARSHAL_ACTION_CONV_OUT:
6708 int label_false, label_end;
6712 mono_mb_emit_ldarg (mb, argnum);
6713 mono_mb_emit_ldloc (mb, conv_arg);
6715 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6716 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6718 label_end = mono_mb_emit_branch (mb, CEE_BR);
6719 mono_mb_patch_branch (mb, label_false);
6720 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6721 mono_mb_patch_branch (mb, label_end);
6723 mono_mb_emit_byte (mb, CEE_STIND_I1);
6727 case MARSHAL_ACTION_PUSH:
6729 mono_mb_emit_ldloc_addr (mb, conv_arg);
6731 mono_mb_emit_ldloc (mb, conv_arg);
6733 mono_mb_emit_ldarg (mb, argnum);
6736 case MARSHAL_ACTION_CONV_RESULT:
6737 /* maybe we need to make sure that it fits within 8 bits */
6738 mono_mb_emit_stloc (mb, 3);
6741 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6742 MonoClass* conv_arg_class = mono_defaults.int32_class;
6743 guint8 ldop = CEE_LDIND_I4;
6744 int label_null, label_false;
6746 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
6747 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6750 *conv_arg_type = &conv_arg_class->this_arg;
6752 *conv_arg_type = &conv_arg_class->byval_arg;
6755 mono_mb_emit_ldarg (mb, argnum);
6759 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6760 mono_mb_emit_ldarg (mb, argnum);
6761 mono_mb_emit_byte (mb, ldop);
6765 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6766 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6767 mono_mb_emit_stloc (mb, conv_arg);
6768 mono_mb_patch_branch (mb, label_false);
6771 mono_mb_patch_branch (mb, label_null);
6775 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6776 guint8 stop = CEE_STIND_I4;
6777 guint8 ldc_op = CEE_LDC_I4_1;
6778 int label_null,label_false, label_end;;
6783 switch (spec->native) {
6784 case MONO_NATIVE_I1:
6785 case MONO_NATIVE_U1:
6786 stop = CEE_STIND_I1;
6788 case MONO_NATIVE_VARIANTBOOL:
6789 stop = CEE_STIND_I2;
6790 ldc_op = CEE_LDC_I4_M1;
6798 mono_mb_emit_ldarg (mb, argnum);
6799 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6801 mono_mb_emit_ldarg (mb, argnum);
6802 mono_mb_emit_ldloc (mb, conv_arg);
6804 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6805 mono_mb_emit_byte (mb, ldc_op);
6806 label_end = mono_mb_emit_branch (mb, CEE_BR);
6808 mono_mb_patch_branch (mb, label_false);
6809 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6810 mono_mb_patch_branch (mb, label_end);
6812 mono_mb_emit_byte (mb, stop);
6813 mono_mb_patch_branch (mb, label_null);
6818 g_assert_not_reached ();
6825 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
6826 MonoMarshalSpec *spec, int conv_arg,
6827 MonoType **conv_arg_type, MarshalAction action)
6830 MonoMethodBuilder *mb = m->mb;
6833 case MARSHAL_ACTION_CONV_IN:
6834 /* MS seems to allow this in some cases, ie. bxc #158 */
6836 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
6837 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
6838 mono_mb_emit_exception_marshal_directive (m->mb, msg);
6843 case MARSHAL_ACTION_PUSH:
6844 mono_mb_emit_ldarg (mb, argnum);
6847 case MARSHAL_ACTION_CONV_RESULT:
6848 /* no conversions necessary */
6849 mono_mb_emit_stloc (mb, 3);
6860 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
6861 MonoMarshalSpec *spec, int conv_arg,
6862 MonoType **conv_arg_type, MarshalAction action)
6865 MonoMethodBuilder *mb = m->mb;
6868 case MARSHAL_ACTION_PUSH:
6869 /* fixme: dont know how to marshal that. We cant simply
6870 * convert it to a one byte UTF8 character, because an
6871 * unicode character may need more that one byte in UTF8 */
6872 mono_mb_emit_ldarg (mb, argnum);
6875 case MARSHAL_ACTION_CONV_RESULT:
6876 /* fixme: we need conversions here */
6877 mono_mb_emit_stloc (mb, 3);
6888 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
6889 MonoMarshalSpec *spec, int conv_arg,
6890 MonoType **conv_arg_type, MarshalAction action)
6893 MonoMethodBuilder *mb = m->mb;
6896 case MARSHAL_ACTION_PUSH:
6897 mono_mb_emit_ldarg (mb, argnum);
6900 case MARSHAL_ACTION_CONV_RESULT:
6901 /* no conversions necessary */
6902 mono_mb_emit_stloc (mb, 3);
6913 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
6914 MonoMarshalSpec *spec, int conv_arg,
6915 MonoType **conv_arg_type, MarshalAction action)
6917 /* Ensure that we have marshalling info for this param */
6918 mono_marshal_load_type_info (mono_class_from_mono_type (t));
6920 if (spec && spec->native == MONO_NATIVE_CUSTOM)
6921 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6923 if (spec && spec->native == MONO_NATIVE_ASANY)
6924 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6927 case MONO_TYPE_VALUETYPE:
6928 if (t->data.klass == mono_defaults.handleref_class)
6929 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6931 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6932 case MONO_TYPE_STRING:
6933 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6934 case MONO_TYPE_CLASS:
6935 case MONO_TYPE_OBJECT:
6937 if (spec && spec->native == MONO_NATIVE_STRUCT)
6938 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6940 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
6941 spec->native == MONO_NATIVE_IDISPATCH ||
6942 spec->native == MONO_NATIVE_INTERFACE))
6943 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6944 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
6945 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
6946 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
6947 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6950 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
6951 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
6952 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6954 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6955 case MONO_TYPE_ARRAY:
6956 case MONO_TYPE_SZARRAY:
6957 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6958 case MONO_TYPE_BOOLEAN:
6959 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6961 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6962 case MONO_TYPE_CHAR:
6963 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6976 case MONO_TYPE_FNPTR:
6977 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6978 case MONO_TYPE_GENERICINST:
6979 if (mono_type_generic_inst_is_valuetype (t))
6980 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6982 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6990 * mono_marshal_emit_native_wrapper:
6991 * @image: the image to use for looking up custom marshallers
6992 * @sig: The signature of the native function
6993 * @piinfo: Marshalling information
6994 * @mspecs: Marshalling information
6995 * @aot: whenever the created method will be compiled by the AOT compiler
6996 * @method: if non-NULL, the pinvoke method to call
6997 * @check_exceptions: Whenever to check for pending exceptions after the native call
6998 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7000 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7003 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)
7005 EmitMarshalContext m;
7006 MonoMethodSignature *csig;
7008 int i, argnum, *tmp_locals;
7009 int type, param_shift = 0;
7010 static MonoMethodSignature *get_last_error_sig = NULL;
7015 memset (&m, 0, sizeof (m));
7020 /* we copy the signature, so that we can set pinvoke to 0 */
7022 /* The function address is passed as the first argument */
7023 g_assert (!sig->hasthis);
7026 csig = signature_dup (mb->method->klass->image, sig);
7034 /* we allocate local for use with emit_struct_conv() */
7035 /* allocate local 0 (pointer) src_ptr */
7036 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7037 /* allocate local 1 (pointer) dst_ptr */
7038 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7039 /* allocate local 2 (boolean) delete_old */
7040 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7042 /* delete_old = FALSE */
7043 mono_mb_emit_icon (mb, 0);
7044 mono_mb_emit_stloc (mb, 2);
7046 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7047 /* allocate local 3 to store the return value */
7048 mono_mb_add_local (mb, sig->ret);
7052 /* local 4, the local to be used when calling the suspend funcs */
7053 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7056 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7057 /* Return type custom marshaling */
7059 * Since we can't determine the return type of the unmanaged function,
7060 * we assume it returns a pointer, and pass that pointer to
7061 * MarshalNativeToManaged.
7063 csig->ret = &mono_defaults.int_class->byval_arg;
7066 /* we first do all conversions */
7067 tmp_locals = alloca (sizeof (int) * sig->param_count);
7068 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
7070 for (i = 0; i < sig->param_count; i ++) {
7071 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7074 /* push all arguments */
7077 mono_mb_emit_byte (mb, CEE_LDARG_0);
7079 for (i = 0; i < sig->param_count; i++) {
7080 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7084 mono_mb_emit_icall (mb, mono_threads_prepare_blocking);
7085 mono_mb_emit_stloc (mb, coop_gc_var);
7088 /* call the native method */
7090 mono_mb_emit_byte (mb, CEE_LDARG_0);
7091 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7092 mono_mb_emit_byte (mb, CEE_LDIND_I);
7093 mono_mb_emit_calli (mb, csig);
7094 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7096 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7098 g_assert_not_reached ();
7103 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7104 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7105 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7106 mono_mb_emit_calli (mb, csig);
7108 mono_mb_emit_native_call (mb, csig, func);
7112 /* Set LastError if needed */
7113 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7114 if (!get_last_error_sig) {
7115 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7116 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7117 get_last_error_sig->pinvoke = 1;
7122 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7123 * clobber its value.
7125 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7126 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7128 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7133 mono_mb_emit_ldloc (mb, coop_gc_var);
7134 mono_mb_emit_icall (mb, mono_threads_finish_blocking);
7137 /* convert the result */
7138 if (!sig->ret->byref) {
7139 MonoMarshalSpec *spec = mspecs [0];
7140 type = sig->ret->type;
7142 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7143 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7148 case MONO_TYPE_VOID:
7150 case MONO_TYPE_VALUETYPE:
7151 klass = sig->ret->data.klass;
7152 if (klass->enumtype) {
7153 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7156 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7170 case MONO_TYPE_FNPTR:
7171 case MONO_TYPE_STRING:
7172 case MONO_TYPE_CLASS:
7173 case MONO_TYPE_OBJECT:
7174 case MONO_TYPE_BOOLEAN:
7175 case MONO_TYPE_ARRAY:
7176 case MONO_TYPE_SZARRAY:
7177 case MONO_TYPE_CHAR:
7179 case MONO_TYPE_GENERICINST:
7180 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7182 case MONO_TYPE_TYPEDBYREF:
7184 g_warning ("return type 0x%02x unknown", sig->ret->type);
7185 g_assert_not_reached ();
7189 mono_mb_emit_stloc (mb, 3);
7193 * Need to call this after converting the result since MONO_VTADDR needs
7194 * to be adjacent to the call instruction.
7196 if (check_exceptions)
7197 emit_thread_interrupt_checkpoint (mb);
7199 /* we need to convert byref arguments back and free string arrays */
7200 for (i = 0; i < sig->param_count; i++) {
7201 MonoType *t = sig->params [i];
7202 MonoMarshalSpec *spec = mspecs [i + 1];
7204 argnum = i + param_shift;
7206 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7207 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7212 case MONO_TYPE_STRING:
7213 case MONO_TYPE_VALUETYPE:
7214 case MONO_TYPE_CLASS:
7215 case MONO_TYPE_OBJECT:
7216 case MONO_TYPE_SZARRAY:
7217 case MONO_TYPE_BOOLEAN:
7218 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7225 if (!MONO_TYPE_IS_VOID(sig->ret))
7226 mono_mb_emit_ldloc (mb, 3);
7228 mono_mb_emit_byte (mb, CEE_RET);
7230 #endif /* DISABLE_JIT */
7233 * mono_marshal_get_native_wrapper:
7234 * @method: The MonoMethod to wrap.
7235 * @check_exceptions: Whenever to check for pending exceptions
7237 * generates IL code for the pinvoke wrapper (the generated method
7238 * calls the unmanaged code in piinfo->addr)
7239 * The wrapper info for the wrapper is a WrapperInfo structure.
7242 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7244 MonoMethodSignature *sig, *csig;
7245 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7246 MonoMethodBuilder *mb;
7247 MonoMarshalSpec **mspecs;
7250 gboolean pinvoke = FALSE;
7253 const char *exc_class = "MissingMethodException";
7254 const char *exc_arg = NULL;
7257 g_assert (method != NULL);
7258 g_assert (mono_method_signature (method)->pinvoke);
7261 if (check_exceptions)
7262 cache = get_cache (&method->klass->image->native_wrapper_aot_check_cache, mono_aligned_addr_hash, NULL);
7264 cache = get_cache (&method->klass->image->native_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7266 if (check_exceptions)
7267 cache = get_cache (&method->klass->image->native_wrapper_check_cache, mono_aligned_addr_hash, NULL);
7269 cache = get_cache (&method->klass->image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
7271 if ((res = mono_marshal_find_in_cache (cache, method)))
7274 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7275 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7279 return mono_cominterop_get_native_wrapper (method);
7281 g_assert_not_reached ();
7285 sig = mono_method_signature (method);
7287 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7288 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7291 if (!piinfo->addr) {
7293 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7294 exc_arg = "Method contains unsupported native code";
7296 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7298 piinfo->addr = mono_lookup_internal_call (method);
7302 /* hack - redirect certain string constructors to CreateString */
7303 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7304 g_assert (!pinvoke);
7305 g_assert (method->string_ctor);
7306 g_assert (sig->hasthis);
7308 /* CreateString returns a value */
7309 csig = signature_dup (method->klass->image, sig);
7310 csig->ret = &mono_defaults.string_class->byval_arg;
7314 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7315 if (!strcmp ("CreateString", res->name) &&
7316 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7319 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7320 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7322 /* create a wrapper to preserve .ctor in stack trace */
7323 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7326 mono_mb_emit_byte (mb, CEE_LDARG_0);
7327 for (i = 1; i <= csig->param_count; i++)
7328 mono_mb_emit_ldarg (mb, i);
7329 mono_mb_emit_managed_call (mb, res, NULL);
7330 mono_mb_emit_byte (mb, CEE_RET);
7333 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7334 info->d.string_ctor.method = method;
7336 /* use native_wrapper_cache because internal calls are looked up there */
7337 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7338 csig->param_count + 1, info, NULL);
7345 /* exception will be thrown */
7346 piinfo->addr = NULL;
7347 g_warning ("cannot find CreateString for .ctor");
7350 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7352 mb->method->save_lmf = 1;
7355 * In AOT mode and embedding scenarios, it is possible that the icall is not
7356 * registered in the runtime doing the AOT compilation.
7358 if (!piinfo->addr && !aot) {
7360 mono_mb_emit_exception (mb, exc_class, exc_arg);
7362 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7363 info->d.managed_to_native.method = method;
7365 csig = signature_dup (method->klass->image, sig);
7367 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7368 csig->param_count + 16, info, NULL);
7374 /* internal calls: we simply push all arguments and call the method (no conversions) */
7375 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7377 csig = signature_dup_add_this (method->klass->image, sig, method->klass);
7379 csig = signature_dup (method->klass->image, sig);
7381 /* hack - string constructors returns a value */
7382 if (method->string_ctor)
7383 csig->ret = &mono_defaults.string_class->byval_arg;
7390 * Add a null check since public icalls can be called with 'call' which
7391 * does no such check.
7393 mono_mb_emit_byte (mb, CEE_LDARG_0);
7394 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7395 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7396 mono_mb_patch_branch (mb, pos);
7398 mono_mb_emit_byte (mb, CEE_LDARG_0);
7401 for (i = 0; i < sig->param_count; i++)
7402 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7405 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7406 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7407 mono_mb_emit_calli (mb, csig);
7409 g_assert (piinfo->addr);
7410 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7412 if (check_exceptions)
7413 emit_thread_interrupt_checkpoint (mb);
7414 mono_mb_emit_byte (mb, CEE_RET);
7416 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7417 info->d.managed_to_native.method = method;
7419 csig = signature_dup (method->klass->image, csig);
7421 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7430 g_assert (piinfo->addr);
7433 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7434 mono_method_get_marshal_info (method, mspecs);
7436 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7438 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7439 info->d.managed_to_native.method = method;
7441 csig = signature_dup (method->klass->image, sig);
7443 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7448 for (i = sig->param_count; i >= 0; i--)
7450 mono_metadata_free_marshal_spec (mspecs [i]);
7454 /* mono_method_print_code (res); */
7460 * mono_marshal_get_native_func_wrapper:
7461 * @image: The image to use for memory allocation and for looking up custom marshallers.
7462 * @sig: The signature of the function
7463 * @func: The native function to wrap
7465 * Returns a wrapper method around native functions, similar to the pinvoke
7469 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7470 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7472 MonoMethodSignature *csig;
7474 SignaturePointerPair key, *new_key;
7475 MonoMethodBuilder *mb;
7484 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7485 if ((res = mono_marshal_find_in_cache (cache, &key)))
7488 name = g_strdup_printf ("wrapper_native_%p", func);
7489 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7490 mb->method->save_lmf = 1;
7493 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7496 csig = signature_dup (image, sig);
7499 new_key = g_new (SignaturePointerPair,1);
7500 new_key->sig = csig;
7501 new_key->pointer = func;
7503 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7509 mono_marshal_set_wrapper_info (res, NULL);
7515 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7519 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7521 MonoMethodSignature *sig, *csig;
7522 MonoMethodBuilder *mb;
7527 MonoMethodPInvoke mpiinfo;
7528 MonoMethodPInvoke *piinfo = &mpiinfo;
7529 MonoMarshalSpec **mspecs;
7530 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7531 MonoImage *image = invoke->klass->image;
7534 // FIXME: include UnmanagedFunctionPointerAttribute info
7537 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7539 cache = get_cache (&image->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7540 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7543 memset (&mpiinfo, 0, sizeof (mpiinfo));
7544 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7546 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7547 mono_method_get_marshal_info (invoke, mspecs);
7548 /* Freed below so don't alloc from mempool */
7549 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7552 name = g_strdup_printf ("wrapper_aot_native");
7553 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7554 mb->method->save_lmf = 1;
7557 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7560 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7561 info->d.managed_to_native.method = invoke;
7563 g_assert (!sig->hasthis);
7564 csig = signature_dup_add_this (image, sig, mono_defaults.object_class);
7566 res = mono_mb_create_and_cache_full (cache, invoke,
7567 mb, csig, csig->param_count + 16,
7571 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7573 mono_metadata_free_marshal_spec (mspecs [i]);
7581 * mono_marshal_emit_managed_wrapper:
7583 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7584 * the delegate which wraps the managed method to be called. For closed delegates,
7585 * it could have fewer parameters than the method it wraps.
7586 * THIS_LOC is the memory location where the target of the delegate is stored.
7589 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7592 MonoMethodSignature *sig, *csig;
7598 /* we first do all conversions */
7599 for (i = 0; i < sig->param_count; i ++) {
7600 MonoType *t = sig->params [i];
7603 case MONO_TYPE_OBJECT:
7604 case MONO_TYPE_CLASS:
7605 case MONO_TYPE_VALUETYPE:
7606 case MONO_TYPE_ARRAY:
7607 case MONO_TYPE_SZARRAY:
7608 case MONO_TYPE_STRING:
7609 case MONO_TYPE_BOOLEAN:
7610 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7614 if (!sig->ret->byref) {
7615 switch (sig->ret->type) {
7616 case MONO_TYPE_STRING:
7617 csig->ret = &mono_defaults.int_class->byval_arg;
7624 MonoMethodSignature *sig, *csig;
7626 gboolean closed = FALSE;
7634 /* allocate local 0 (pointer) src_ptr */
7635 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7636 /* allocate local 1 (pointer) dst_ptr */
7637 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7638 /* allocate local 2 (boolean) delete_old */
7639 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7641 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7642 /* Closed delegate */
7643 g_assert (sig->param_count == invoke_sig->param_count + 1);
7645 /* Use a new signature without the first argument */
7646 sig = mono_metadata_signature_dup (sig);
7647 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7648 sig->param_count --;
7651 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7652 /* allocate local 3 to store the return value */
7653 mono_mb_add_local (mb, sig->ret);
7656 /* local 4, the local to be used when calling the reset_blocking funcs */
7657 /* tons of code hardcode 3 to be the return var */
7658 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7661 mono_mb_emit_icon (mb, 0);
7662 mono_mb_emit_stloc (mb, 2);
7665 * Might need to attach the thread to the JIT or change the
7666 * domain for the callback.
7668 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7669 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
7672 /* XXX can we merge reset_blocking_start with JIT_ATTACH above and save one call? */
7673 mono_mb_emit_icall (mb, mono_threads_reset_blocking_start);
7674 mono_mb_emit_stloc (mb, coop_gc_var);
7677 /* we first do all conversions */
7678 tmp_locals = alloca (sizeof (int) * sig->param_count);
7679 for (i = 0; i < sig->param_count; i ++) {
7680 MonoType *t = sig->params [i];
7683 case MONO_TYPE_OBJECT:
7684 case MONO_TYPE_CLASS:
7685 case MONO_TYPE_VALUETYPE:
7686 case MONO_TYPE_ARRAY:
7687 case MONO_TYPE_SZARRAY:
7688 case MONO_TYPE_STRING:
7689 case MONO_TYPE_BOOLEAN:
7690 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7699 emit_thread_interrupt_checkpoint (mb);
7702 if (target_handle) {
7703 mono_mb_emit_icon (mb, (gint32)target_handle);
7704 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7707 g_assert_not_reached ();
7709 } else if (closed) {
7710 mono_mb_emit_icon (mb, (gint32)target_handle);
7711 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7714 for (i = 0; i < sig->param_count; i++) {
7715 MonoType *t = sig->params [i];
7717 if (tmp_locals [i]) {
7719 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
7721 mono_mb_emit_ldloc (mb, tmp_locals [i]);
7724 mono_mb_emit_ldarg (mb, i);
7727 mono_mb_emit_managed_call (mb, method, NULL);
7729 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7730 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7731 } else if (!sig->ret->byref) {
7732 switch (sig->ret->type) {
7733 case MONO_TYPE_VOID:
7735 case MONO_TYPE_BOOLEAN:
7738 case MONO_TYPE_CHAR:
7750 case MONO_TYPE_OBJECT:
7751 mono_mb_emit_stloc (mb, 3);
7753 case MONO_TYPE_STRING:
7754 csig->ret = &mono_defaults.int_class->byval_arg;
7755 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7757 case MONO_TYPE_VALUETYPE:
7758 case MONO_TYPE_CLASS:
7759 case MONO_TYPE_SZARRAY:
7760 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7763 g_warning ("return type 0x%02x unknown", sig->ret->type);
7764 g_assert_not_reached ();
7767 mono_mb_emit_stloc (mb, 3);
7770 /* Convert byref arguments back */
7771 for (i = 0; i < sig->param_count; i ++) {
7772 MonoType *t = sig->params [i];
7773 MonoMarshalSpec *spec = mspecs [i + 1];
7775 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7776 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7778 else if (t->byref) {
7780 case MONO_TYPE_CLASS:
7781 case MONO_TYPE_VALUETYPE:
7782 case MONO_TYPE_OBJECT:
7783 case MONO_TYPE_STRING:
7784 case MONO_TYPE_BOOLEAN:
7785 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7791 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
7792 /* The [Out] information is encoded in the delegate signature */
7794 case MONO_TYPE_SZARRAY:
7795 case MONO_TYPE_CLASS:
7796 case MONO_TYPE_VALUETYPE:
7797 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7800 g_assert_not_reached ();
7806 /* XXX merge reset_blocking_end with detach */
7807 mono_mb_emit_ldloc (mb, coop_gc_var);
7808 mono_mb_emit_icall (mb, mono_threads_reset_blocking_end);
7811 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7812 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
7814 if (m->retobj_var) {
7815 mono_mb_emit_ldloc (mb, m->retobj_var);
7816 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7817 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
7820 if (!MONO_TYPE_IS_VOID(sig->ret))
7821 mono_mb_emit_ldloc (mb, 3);
7822 mono_mb_emit_byte (mb, CEE_RET);
7831 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
7833 MonoMethodSignature *sig;
7838 * Under windows, delegates passed to native code must use the STDCALL
7839 * calling convention.
7841 csig->call_convention = MONO_CALL_STDCALL;
7844 sig = mono_method_signature (method);
7846 /* Change default calling convention if needed */
7847 /* Why is this a modopt ? */
7848 if (sig->ret && sig->ret->num_mods) {
7849 for (i = 0; i < sig->ret->num_mods; ++i) {
7851 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
7852 g_assert (mono_error_ok (&error));
7853 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
7854 if (!strcmp (cmod_class->name, "CallConvCdecl"))
7855 csig->call_convention = MONO_CALL_C;
7856 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
7857 csig->call_convention = MONO_CALL_STDCALL;
7858 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
7859 csig->call_convention = MONO_CALL_FASTCALL;
7860 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
7861 csig->call_convention = MONO_CALL_THISCALL;
7868 * generates IL code to call managed methods from unmanaged code
7869 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
7872 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
7874 static MonoClass *UnmanagedFunctionPointerAttribute;
7875 MonoMethodSignature *sig, *csig, *invoke_sig;
7876 MonoMethodBuilder *mb;
7877 MonoMethod *res, *invoke;
7878 MonoMarshalSpec **mspecs;
7879 MonoMethodPInvoke piinfo;
7882 EmitMarshalContext m;
7884 g_assert (method != NULL);
7885 g_assert (!mono_method_signature (method)->pinvoke);
7888 * FIXME: Should cache the method+delegate type pair, since the same method
7889 * could be called with different delegates, thus different marshalling
7892 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
7893 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
7896 invoke = mono_get_delegate_invoke (delegate_klass);
7897 invoke_sig = mono_method_signature (invoke);
7899 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7900 mono_method_get_marshal_info (invoke, mspecs);
7902 sig = mono_method_signature (method);
7904 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
7906 /*the target gchandle must be the first entry after size and the wrapper itself.*/
7907 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
7909 /* we copy the signature, so that we can modify it */
7911 /* Need to free this later */
7912 csig = mono_metadata_signature_dup (invoke_sig);
7914 csig = signature_dup (method->klass->image, invoke_sig);
7918 memset (&m, 0, sizeof (m));
7924 m.image = method->klass->image;
7926 mono_marshal_set_callconv_from_modopt (invoke, csig);
7928 /* Handle the UnmanagedFunctionPointerAttribute */
7929 if (!UnmanagedFunctionPointerAttribute)
7930 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
7932 /* The attribute is only available in Net 2.0 */
7933 if (UnmanagedFunctionPointerAttribute) {
7934 MonoCustomAttrInfo *cinfo;
7935 MonoCustomAttrEntry *attr;
7938 * The pinvoke attributes are stored in a real custom attribute. Obtain the
7939 * contents of the attribute without constructing it, as that might not be
7940 * possible when running in cross-compiling mode.
7942 cinfo = mono_custom_attrs_from_class (delegate_klass);
7945 for (i = 0; i < cinfo->num_attrs; ++i) {
7946 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
7947 if (mono_class_has_parent (ctor_class, UnmanagedFunctionPointerAttribute)) {
7948 attr = &cinfo->attrs [i];
7954 MonoArray *typed_args, *named_args;
7955 CattrNamedArg *arginfo;
7959 MonoBoolean set_last_error = 0;
7962 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
7963 g_assert (mono_error_ok (&error));
7964 g_assert (mono_array_length (typed_args) == 1);
7967 o = mono_array_get (typed_args, MonoObject*, 0);
7968 call_conv = *(gint32*)mono_object_unbox (o);
7971 for (i = 0; i < mono_array_length (named_args); ++i) {
7972 CattrNamedArg *narg = &arginfo [i];
7974 o = mono_array_get (named_args, MonoObject*, i);
7976 g_assert (narg->field);
7977 if (!strcmp (narg->field->name, "CharSet")) {
7978 charset = *(gint32*)mono_object_unbox (o);
7979 } else if (!strcmp (narg->field->name, "SetLastError")) {
7980 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
7981 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
7982 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
7983 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
7984 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
7986 g_assert_not_reached ();
7992 memset (&piinfo, 0, sizeof (piinfo));
7994 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
7996 csig->call_convention = call_conv - 1;
7999 if (cinfo && !cinfo->cached)
8000 mono_custom_attrs_free (cinfo);
8003 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8005 if (!target_handle) {
8008 // FIXME: Associate it with the method+delegate_klass pair
8009 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8010 info->d.native_to_managed.method = method;
8011 info->d.native_to_managed.klass = delegate_klass;
8013 res = mono_mb_create_and_cache_full (cache, method,
8014 mb, csig, sig->param_count + 16,
8020 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8024 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8026 mono_metadata_free_marshal_spec (mspecs [i]);
8029 /* mono_method_print_code (res); */
8035 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8038 MonoMethodSignature *sig;
8039 MonoMethodBuilder *mb;
8044 method = mono_get_method (image, token, NULL);
8047 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8048 MonoMethodSignature *csig;
8049 MonoMarshalSpec **mspecs;
8050 EmitMarshalContext m;
8052 sig = mono_method_signature (method);
8053 g_assert (!sig->hasthis);
8055 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8056 mono_method_get_marshal_info (method, mspecs);
8058 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8059 csig = signature_dup (image, sig);
8063 memset (&m, 0, sizeof (m));
8071 mono_marshal_set_callconv_from_modopt (method, csig);
8073 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8075 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8080 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8083 for (i = sig->param_count; i >= 0; i--)
8085 mono_metadata_free_marshal_spec (mspecs [i]);
8088 return mono_compile_method (method);
8091 sig = mono_method_signature (method);
8092 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8094 param_count = sig->param_count + sig->hasthis;
8096 for (i = 0; i < param_count; i++)
8097 mono_mb_emit_ldarg (mb, i);
8099 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8100 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8102 mono_mb_emit_op (mb, CEE_CALL, method);
8103 mono_mb_emit_byte (mb, CEE_RET);
8108 method = mono_mb_create (mb, sig, param_count, NULL);
8111 return mono_compile_method (method);
8117 * The code directly following this is the cache hit, value positive branch
8119 * This function takes a new method builder with 0 locals and adds two locals
8120 * to create multiple out-branches and the fall through state of having the object
8121 * on the stack after a cache miss
8124 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8125 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8126 MonoMethodBuilder *mb)
8130 /* allocate local 0 (pointer) obj_vtable */
8131 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8132 /* allocate local 1 (pointer) cached_vtable */
8133 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8136 mono_mb_emit_ldarg (mb, obj_arg_position);
8137 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8139 /*obj_vtable = obj->vtable;*/
8140 mono_mb_emit_ldarg (mb, obj_arg_position);
8141 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8142 mono_mb_emit_byte (mb, CEE_LDIND_I);
8143 mono_mb_emit_stloc (mb, 0);
8145 /* cached_vtable = *cache*/
8146 mono_mb_emit_ldarg (mb, cache_arg_position);
8147 mono_mb_emit_byte (mb, CEE_LDIND_I);
8148 mono_mb_emit_stloc (mb, 1);
8150 mono_mb_emit_ldloc (mb, 1);
8151 mono_mb_emit_byte (mb, CEE_LDC_I4);
8152 mono_mb_emit_i4 (mb, ~0x1);
8153 mono_mb_emit_byte (mb, CEE_CONV_I);
8154 mono_mb_emit_byte (mb, CEE_AND);
8155 mono_mb_emit_ldloc (mb, 0);
8156 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8157 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8159 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8160 mono_mb_emit_ldloc (mb, 1);
8161 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8162 mono_mb_emit_byte (mb, CEE_CONV_U);
8163 mono_mb_emit_byte (mb, CEE_AND);
8164 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8165 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8168 mono_mb_patch_branch (mb, cache_miss_pos);
8171 mono_mb_emit_ldarg (mb, obj_arg_position);
8172 mono_mb_emit_ldarg (mb, class_arg_position);
8173 mono_mb_emit_ldarg (mb, cache_arg_position);
8174 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8177 #endif /* DISABLE_JIT */
8180 * This does the equivalent of mono_object_castclass_with_cache.
8181 * The wrapper info for the wrapper is a WrapperInfo structure.
8184 mono_marshal_get_castclass_with_cache (void)
8186 static MonoMethod *cached;
8188 MonoMethodBuilder *mb;
8189 MonoMethodSignature *sig;
8190 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8193 const int obj_arg_position = 0;
8194 const int class_arg_position = 1;
8195 const int cache_arg_position = 2;
8200 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8201 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8202 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8203 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8204 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8205 sig->ret = &mono_defaults.object_class->byval_arg;
8209 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8210 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8211 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8214 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8215 mono_mb_emit_ldarg (mb, obj_arg_position);
8216 mono_mb_emit_byte (mb, CEE_RET);
8219 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8220 mono_mb_patch_branch (mb, invalid_cast_pos);
8221 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8224 mono_mb_patch_branch (mb, return_null_pos);
8225 mono_mb_emit_byte (mb, CEE_LDNULL);
8226 mono_mb_emit_byte (mb, CEE_RET);
8227 #endif /* DISABLE_JIT */
8229 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8230 res = mono_mb_create (mb, sig, 8, info);
8233 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8234 mono_free_method (res);
8235 mono_metadata_free_method_signature (sig);
8243 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8245 MonoObject *isinst = mono_object_isinst (obj, klass);
8247 #ifndef DISABLE_REMOTING
8248 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8252 uintptr_t cache_update = (uintptr_t)obj->vtable;
8254 cache_update = cache_update | 0x1;
8256 *cache = cache_update;
8262 * This does the equivalent of mono_object_isinst_with_cache.
8263 * The wrapper info for the wrapper is a WrapperInfo structure.
8266 mono_marshal_get_isinst_with_cache (void)
8268 static MonoMethod *cached;
8270 MonoMethodBuilder *mb;
8271 MonoMethodSignature *sig;
8272 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8275 const int obj_arg_position = 0;
8276 const int class_arg_position = 1;
8277 const int cache_arg_position = 2;
8282 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8283 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8285 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8287 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8289 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8290 sig->ret = &mono_defaults.object_class->byval_arg;
8294 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8295 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8296 // Return the object gotten via the slow path.
8297 mono_mb_emit_byte (mb, CEE_RET);
8300 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8301 mono_mb_patch_branch (mb, return_null_pos);
8302 mono_mb_emit_byte (mb, CEE_LDNULL);
8303 mono_mb_emit_byte (mb, CEE_RET);
8306 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8307 mono_mb_emit_ldarg (mb, 0);
8308 mono_mb_emit_byte (mb, CEE_RET);
8311 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8312 res = mono_mb_create (mb, sig, 8, info);
8315 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8316 mono_free_method (res);
8317 mono_metadata_free_method_signature (sig);
8325 * mono_marshal_get_isinst:
8326 * @klass: the type of the field
8328 * This method generates a function which can be used to check if an object is
8329 * an instance of the given type, icluding the case where the object is a proxy.
8330 * The generated function has the following signature:
8331 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8334 mono_marshal_get_isinst (MonoClass *klass)
8336 static MonoMethodSignature *isint_sig = NULL;
8340 int pos_was_ok, pos_end;
8341 #ifndef DISABLE_REMOTING
8342 int pos_end2, pos_failed;
8345 MonoMethodBuilder *mb;
8347 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8348 if ((res = mono_marshal_find_in_cache (cache, klass)))
8352 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8353 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8354 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8355 isint_sig->pinvoke = 0;
8358 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8359 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8362 mb->method->save_lmf = 1;
8365 /* check if the object is a proxy that needs special cast */
8366 mono_mb_emit_ldarg (mb, 0);
8367 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8368 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8370 /* The result of MONO_CISINST can be:
8371 0) the type check succeeded
8372 1) the type check did not succeed
8373 2) a CanCastTo call is needed */
8374 #ifndef DISABLE_REMOTING
8375 mono_mb_emit_byte (mb, CEE_DUP);
8376 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8378 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8379 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8381 /* get the real proxy from the transparent proxy*/
8383 mono_mb_emit_ldarg (mb, 0);
8384 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8385 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8389 mono_mb_patch_branch (mb, pos_failed);
8390 mono_mb_emit_byte (mb, CEE_LDNULL);
8391 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8395 mono_mb_patch_branch (mb, pos_was_ok);
8396 mono_mb_emit_byte (mb, CEE_POP);
8397 mono_mb_emit_ldarg (mb, 0);
8401 mono_mb_patch_branch (mb, pos_end);
8402 mono_mb_patch_branch (mb, pos_end2);
8403 mono_mb_emit_byte (mb, CEE_RET);
8405 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8409 mono_mb_emit_byte (mb, CEE_LDNULL);
8410 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8414 mono_mb_patch_branch (mb, pos_was_ok);
8415 mono_mb_emit_ldarg (mb, 0);
8419 mono_mb_patch_branch (mb, pos_end);
8420 mono_mb_emit_byte (mb, CEE_RET);
8421 #endif /* DISABLE_REMOTING */
8422 #endif /* DISABLE_JIT */
8424 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8425 info->d.proxy.klass = klass;
8426 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8433 * mono_marshal_get_castclass:
8434 * @klass: the type of the field
8436 * This method generates a function which can be used to cast an object to
8437 * an instance of the given type, icluding the case where the object is a proxy.
8438 * The generated function has the following signature:
8439 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8440 * The wrapper info for the wrapper is a WrapperInfo structure.
8443 mono_marshal_get_castclass (MonoClass *klass)
8445 static MonoMethodSignature *castclass_sig = NULL;
8448 #ifndef DISABLE_REMOTING
8449 int pos_was_ok, pos_was_ok2;
8452 MonoMethodBuilder *mb;
8455 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8456 if ((res = mono_marshal_find_in_cache (cache, klass)))
8459 if (!castclass_sig) {
8460 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8461 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8462 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8463 castclass_sig->pinvoke = 0;
8466 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8467 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8470 mb->method->save_lmf = 1;
8473 /* check if the object is a proxy that needs special cast */
8474 mono_mb_emit_ldarg (mb, 0);
8475 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8476 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8478 /* The result of MONO_CCASTCLASS can be:
8479 0) the cast is valid
8480 1) cast of unknown proxy type
8481 or an exception if the cast is is invalid
8483 #ifndef DISABLE_REMOTING
8484 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8486 /* get the real proxy from the transparent proxy*/
8488 mono_mb_emit_ldarg (mb, 0);
8489 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8490 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8493 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8496 mono_mb_patch_branch (mb, pos_was_ok);
8497 mono_mb_patch_branch (mb, pos_was_ok2);
8499 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8500 mono_mb_emit_byte (mb, CEE_POP);
8501 #endif /* DISABLE_REMOTING */
8503 mono_mb_emit_ldarg (mb, 0);
8506 mono_mb_emit_byte (mb, CEE_RET);
8507 #endif /* DISABLE_JIT */
8509 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8511 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8519 * mono_marshal_get_struct_to_ptr:
8522 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8523 * The wrapper info for the wrapper is a WrapperInfo structure.
8526 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8528 MonoMethodBuilder *mb;
8529 static MonoMethod *stoptr = NULL;
8533 g_assert (klass != NULL);
8535 mono_marshal_load_type_info (klass);
8537 if (klass->marshal_info->str_to_ptr)
8538 return klass->marshal_info->str_to_ptr;
8541 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8544 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8547 if (klass->blittable) {
8548 mono_mb_emit_byte (mb, CEE_LDARG_1);
8549 mono_mb_emit_byte (mb, CEE_LDARG_0);
8550 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8551 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8552 mono_mb_emit_byte (mb, CEE_PREFIX1);
8553 mono_mb_emit_byte (mb, CEE_CPBLK);
8556 /* allocate local 0 (pointer) src_ptr */
8557 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8558 /* allocate local 1 (pointer) dst_ptr */
8559 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8560 /* allocate local 2 (boolean) delete_old */
8561 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8562 mono_mb_emit_byte (mb, CEE_LDARG_2);
8563 mono_mb_emit_stloc (mb, 2);
8565 /* initialize src_ptr to point to the start of object data */
8566 mono_mb_emit_byte (mb, CEE_LDARG_0);
8567 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8568 mono_mb_emit_stloc (mb, 0);
8570 /* initialize dst_ptr */
8571 mono_mb_emit_byte (mb, CEE_LDARG_1);
8572 mono_mb_emit_stloc (mb, 1);
8574 emit_struct_conv (mb, klass, FALSE);
8577 mono_mb_emit_byte (mb, CEE_RET);
8579 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
8580 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
8583 klass->marshal_info->str_to_ptr = res;
8588 * mono_marshal_get_ptr_to_struct:
8591 * generates IL code for PtrToStructure (IntPtr src, object structure)
8592 * The wrapper info for the wrapper is a WrapperInfo structure.
8595 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8597 MonoMethodBuilder *mb;
8598 static MonoMethodSignature *ptostr = NULL;
8602 g_assert (klass != NULL);
8604 mono_marshal_load_type_info (klass);
8606 if (klass->marshal_info->ptr_to_str)
8607 return klass->marshal_info->ptr_to_str;
8610 MonoMethodSignature *sig;
8612 /* Create the signature corresponding to
8613 static void PtrToStructure (IntPtr ptr, object structure);
8614 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8615 sig = mono_create_icall_signature ("void ptr object");
8616 sig = signature_dup (mono_defaults.corlib, sig);
8618 mono_memory_barrier ();
8622 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8625 if (klass->blittable) {
8626 mono_mb_emit_byte (mb, CEE_LDARG_1);
8627 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8628 mono_mb_emit_byte (mb, CEE_LDARG_0);
8629 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8630 mono_mb_emit_byte (mb, CEE_PREFIX1);
8631 mono_mb_emit_byte (mb, CEE_CPBLK);
8634 /* allocate local 0 (pointer) src_ptr */
8635 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8636 /* allocate local 1 (pointer) dst_ptr */
8637 mono_mb_add_local (mb, &klass->this_arg);
8639 /* initialize src_ptr to point to the start of object data */
8640 mono_mb_emit_byte (mb, CEE_LDARG_0);
8641 mono_mb_emit_stloc (mb, 0);
8643 /* initialize dst_ptr */
8644 mono_mb_emit_byte (mb, CEE_LDARG_1);
8645 mono_mb_emit_op (mb, CEE_UNBOX, klass);
8646 mono_mb_emit_stloc (mb, 1);
8648 emit_struct_conv (mb, klass, TRUE);
8651 mono_mb_emit_byte (mb, CEE_RET);
8653 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
8654 res = mono_mb_create (mb, ptostr, 0, info);
8657 klass->marshal_info->ptr_to_str = res;
8662 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
8663 * This is used to avoid infinite recursion since it is hard to determine where to
8664 * replace a method with its synchronized wrapper, and where not.
8665 * The runtime should execute METHOD instead of the wrapper.
8666 * The wrapper info for the wrapper is a WrapperInfo structure.
8669 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
8671 MonoMethodBuilder *mb;
8673 MonoMethodSignature *sig;
8675 MonoGenericContext *ctx = NULL;
8676 MonoGenericContainer *container = NULL;
8678 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8679 ctx = &((MonoMethodInflated*)method)->context;
8680 method = ((MonoMethodInflated*)method)->declaring;
8681 container = mono_method_get_generic_container (method);
8683 container = method->klass->generic_container;
8684 g_assert (container);
8687 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
8689 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
8690 mono_mb_emit_byte (mb, CEE_RET);
8692 sig = signature_dup (method->klass->image, mono_method_signature (method));
8694 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
8695 info->d.synchronized_inner.method = method;
8696 res = mono_mb_create (mb, sig, 0, info);
8700 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
8701 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8707 * generates IL code for the synchronized wrapper: the generated method
8708 * calls METHOD while locking 'this' or the parent type.
8711 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
8713 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
8714 MonoMethodSignature *sig;
8715 MonoExceptionClause *clause;
8716 MonoMethodBuilder *mb;
8719 int i, pos, this_local, ret_local = 0;
8720 MonoGenericContext *ctx = NULL;
8721 MonoMethod *orig_method = NULL;
8722 MonoGenericContainer *container = NULL;
8726 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
8729 /* FIXME: Support generic methods too */
8730 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8731 orig_method = method;
8732 ctx = &((MonoMethodInflated*)method)->context;
8733 method = ((MonoMethodInflated*)method)->declaring;
8734 container = mono_method_get_generic_container (method);
8736 container = method->klass->generic_container;
8737 g_assert (container);
8744 cache = get_cache (&method->klass->image->synchronized_generic_cache, mono_aligned_addr_hash, NULL);
8745 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
8749 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
8750 if ((res = mono_marshal_find_in_cache (cache, method)))
8754 sig = signature_dup (method->klass->image, mono_method_signature (method));
8757 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
8761 if (!MONO_TYPE_IS_VOID (sig->ret))
8762 ret_local = mono_mb_add_local (mb, sig->ret);
8765 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
8766 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
8768 /* This will throw the type load exception when the wrapper is compiled */
8769 mono_mb_emit_byte (mb, CEE_LDNULL);
8770 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
8771 mono_mb_emit_byte (mb, CEE_POP);
8773 if (!MONO_TYPE_IS_VOID (sig->ret))
8774 mono_mb_emit_ldloc (mb, ret_local);
8775 mono_mb_emit_byte (mb, CEE_RET);
8778 res = mono_mb_create_and_cache (cache, method,
8779 mb, sig, sig->param_count + 16);
8787 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8789 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
8790 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8793 mono_marshal_lock ();
8795 if (!enter_method) {
8796 MonoMethodDesc *desc;
8798 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
8799 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8800 g_assert (enter_method);
8801 mono_method_desc_free (desc);
8803 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
8804 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8805 g_assert (exit_method);
8806 mono_method_desc_free (desc);
8808 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
8809 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
8810 g_assert (gettypefromhandle_method);
8811 mono_method_desc_free (desc);
8814 mono_marshal_unlock ();
8817 /* Push this or the type object */
8818 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
8819 /* We have special handling for this in the JIT */
8820 int index = mono_mb_add_data (mb, method->klass);
8821 mono_mb_add_data (mb, mono_defaults.typehandle_class);
8822 mono_mb_emit_byte (mb, CEE_LDTOKEN);
8823 mono_mb_emit_i4 (mb, index);
8825 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
8828 mono_mb_emit_ldarg (mb, 0);
8829 mono_mb_emit_stloc (mb, this_local);
8831 /* Call Monitor::Enter() */
8832 mono_mb_emit_ldloc (mb, this_local);
8833 mono_mb_emit_managed_call (mb, enter_method, NULL);
8835 clause->try_offset = mono_mb_get_label (mb);
8837 /* Call the method */
8839 mono_mb_emit_ldarg (mb, 0);
8840 for (i = 0; i < sig->param_count; i++)
8841 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
8845 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
8846 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8848 mono_mb_emit_managed_call (mb, method, NULL);
8851 if (!MONO_TYPE_IS_VOID (sig->ret))
8852 mono_mb_emit_stloc (mb, ret_local);
8854 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8856 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
8857 clause->handler_offset = mono_mb_get_label (mb);
8859 /* Call Monitor::Exit() */
8860 mono_mb_emit_ldloc (mb, this_local);
8861 mono_mb_emit_managed_call (mb, exit_method, NULL);
8862 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8864 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
8866 mono_mb_patch_branch (mb, pos);
8867 if (!MONO_TYPE_IS_VOID (sig->ret))
8868 mono_mb_emit_ldloc (mb, ret_local);
8869 mono_mb_emit_byte (mb, CEE_RET);
8871 mono_mb_set_clauses (mb, 1, clause);
8876 def = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
8877 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
8879 res = mono_mb_create_and_cache (cache, method,
8880 mb, sig, sig->param_count + 16);
8889 * the returned method calls 'method' unboxing the this argument
8892 mono_marshal_get_unbox_wrapper (MonoMethod *method)
8894 MonoMethodSignature *sig = mono_method_signature (method);
8896 MonoMethodBuilder *mb;
8900 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
8901 if ((res = mono_marshal_find_in_cache (cache, method)))
8904 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
8906 g_assert (sig->hasthis);
8909 mono_mb_emit_ldarg (mb, 0);
8910 mono_mb_emit_icon (mb, sizeof (MonoObject));
8911 mono_mb_emit_byte (mb, CEE_ADD);
8912 for (i = 0; i < sig->param_count; ++i)
8913 mono_mb_emit_ldarg (mb, i + 1);
8914 mono_mb_emit_managed_call (mb, method, NULL);
8915 mono_mb_emit_byte (mb, CEE_RET);
8918 res = mono_mb_create_and_cache (cache, method,
8919 mb, sig, sig->param_count + 16);
8922 /* mono_method_print_code (res); */
8928 STELEMREF_OBJECT, /*no check at all*/
8929 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
8930 STELEMREF_CLASS, /*only the klass->parents check*/
8931 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
8932 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
8933 STELEMREF_KIND_COUNT
8936 static const char *strelemref_wrapper_name[] = {
8937 "object", "sealed_class", "class", "interface", "complex"
8941 is_monomorphic_array (MonoClass *klass)
8943 MonoClass *element_class;
8944 if (klass->rank != 1)
8947 element_class = klass->element_class;
8948 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
8952 get_virtual_stelemref_kind (MonoClass *element_class)
8954 if (element_class == mono_defaults.object_class)
8955 return STELEMREF_OBJECT;
8956 if (is_monomorphic_array (element_class))
8957 return STELEMREF_SEALED_CLASS;
8958 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
8959 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
8960 #ifdef COMPRESSED_INTERFACE_BITMAP
8961 return STELEMREF_COMPLEX;
8963 return STELEMREF_INTERFACE;
8965 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
8966 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
8967 return STELEMREF_COMPLEX;
8968 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
8969 return STELEMREF_SEALED_CLASS;
8970 return STELEMREF_CLASS;
8976 load_array_element_address (MonoMethodBuilder *mb)
8978 mono_mb_emit_ldarg (mb, 0);
8979 mono_mb_emit_ldarg (mb, 1);
8980 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
8984 load_array_class (MonoMethodBuilder *mb, int aklass)
8986 mono_mb_emit_ldarg (mb, 0);
8987 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8988 mono_mb_emit_byte (mb, CEE_LDIND_I);
8989 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
8990 mono_mb_emit_byte (mb, CEE_LDIND_I);
8991 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
8992 mono_mb_emit_byte (mb, CEE_LDIND_I);
8993 mono_mb_emit_stloc (mb, aklass);
8997 load_value_class (MonoMethodBuilder *mb, int vklass)
8999 mono_mb_emit_ldarg (mb, 2);
9000 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9001 mono_mb_emit_byte (mb, CEE_LDIND_I);
9002 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9003 mono_mb_emit_byte (mb, CEE_LDIND_I);
9004 mono_mb_emit_stloc (mb, vklass);
9010 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9012 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9013 printf ("slow vstore of %s\n", name);
9019 * The wrapper info for the wrapper is a WrapperInfo structure.
9022 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9023 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9024 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9025 * - Add a case for arrays of arrays.
9028 get_virtual_stelemref_wrapper (int kind)
9030 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9031 static MonoMethodSignature *signature;
9032 MonoMethodBuilder *mb;
9035 const char *param_names [16];
9037 int aklass, vklass, vtable, uiid;
9038 int array_slot_addr;
9041 if (cached_methods [kind])
9042 return cached_methods [kind];
9044 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9045 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9049 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9051 /* void this::stelemref (size_t idx, void* value) */
9052 sig->ret = &mono_defaults.void_class->byval_arg;
9053 sig->hasthis = TRUE;
9054 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9055 sig->params [1] = &mono_defaults.object_class->byval_arg;
9060 param_names [0] = "index";
9061 param_names [1] = "value";
9062 mono_mb_set_param_names (mb, param_names);
9064 /*For now simply call plain old stelemref*/
9066 case STELEMREF_OBJECT:
9067 /* ldelema (implicit bound check) */
9068 load_array_element_address (mb);
9070 mono_mb_emit_ldarg (mb, 2);
9071 mono_mb_emit_byte (mb, CEE_STIND_REF);
9072 mono_mb_emit_byte (mb, CEE_RET);
9075 case STELEMREF_COMPLEX:
9077 <ldelema (bound check)>
9080 if (!mono_object_isinst (value, aklass))
9084 *array_slot_addr = value;
9087 throw new ArrayTypeMismatchException ();
9090 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9091 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9095 /*Use this to debug/record stores that are going thru the slow path*/
9096 MonoMethodSignature *csig;
9097 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9098 csig->ret = &mono_defaults.void_class->byval_arg;
9099 csig->params [0] = &mono_defaults.object_class->byval_arg;
9100 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9101 csig->params [2] = &mono_defaults.object_class->byval_arg;
9102 mono_mb_emit_ldarg (mb, 0);
9103 mono_mb_emit_ldarg (mb, 1);
9104 mono_mb_emit_ldarg (mb, 2);
9105 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9109 /* ldelema (implicit bound check) */
9110 load_array_element_address (mb);
9111 mono_mb_emit_stloc (mb, array_slot_addr);
9113 /* if (!value) goto do_store */
9114 mono_mb_emit_ldarg (mb, 2);
9115 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9117 /* aklass = array->vtable->klass->element_class */
9118 load_array_class (mb, aklass);
9120 /*if (mono_object_isinst (value, aklass)) */
9121 mono_mb_emit_ldarg (mb, 2);
9122 mono_mb_emit_ldloc (mb, aklass);
9123 mono_mb_emit_icall (mb, mono_object_isinst);
9124 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9127 mono_mb_patch_branch (mb, b1);
9128 mono_mb_emit_ldloc (mb, array_slot_addr);
9129 mono_mb_emit_ldarg (mb, 2);
9130 mono_mb_emit_byte (mb, CEE_STIND_REF);
9131 mono_mb_emit_byte (mb, CEE_RET);
9134 mono_mb_patch_branch (mb, b2);
9136 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9139 case STELEMREF_SEALED_CLASS:
9141 <ldelema (bound check)>
9145 aklass = array->vtable->klass->element_class;
9146 vklass = value->vtable->klass;
9148 if (vklass != aklass)
9152 *array_slot_addr = value;
9155 throw new ArrayTypeMismatchException ();
9157 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9158 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9159 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9162 /* ldelema (implicit bound check) */
9163 load_array_element_address (mb);
9164 mono_mb_emit_stloc (mb, array_slot_addr);
9166 /* if (!value) goto do_store */
9167 mono_mb_emit_ldarg (mb, 2);
9168 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9170 /* aklass = array->vtable->klass->element_class */
9171 load_array_class (mb, aklass);
9173 /* vklass = value->vtable->klass */
9174 load_value_class (mb, vklass);
9176 /*if (vklass != aklass) goto do_exception; */
9177 mono_mb_emit_ldloc (mb, aklass);
9178 mono_mb_emit_ldloc (mb, vklass);
9179 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9182 mono_mb_patch_branch (mb, b1);
9183 mono_mb_emit_ldloc (mb, array_slot_addr);
9184 mono_mb_emit_ldarg (mb, 2);
9185 mono_mb_emit_byte (mb, CEE_STIND_REF);
9186 mono_mb_emit_byte (mb, CEE_RET);
9189 mono_mb_patch_branch (mb, b2);
9190 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9193 case STELEMREF_CLASS:
9196 <ldelema (bound check)>
9200 aklass = array->vtable->klass->element_class;
9201 vklass = value->vtable->klass;
9203 if (vklass->idepth < aklass->idepth)
9206 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9210 *array_slot_addr = value;
9214 throw new ArrayTypeMismatchException ();
9216 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9217 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9218 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9220 /* ldelema (implicit bound check) */
9221 load_array_element_address (mb);
9222 mono_mb_emit_stloc (mb, array_slot_addr);
9224 /* if (!value) goto do_store */
9225 mono_mb_emit_ldarg (mb, 2);
9226 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9228 /* aklass = array->vtable->klass->element_class */
9229 load_array_class (mb, aklass);
9231 /* vklass = value->vtable->klass */
9232 load_value_class (mb, vklass);
9234 /*if (mono_object_isinst (value, aklass)) */
9235 mono_mb_emit_ldarg (mb, 2);
9236 mono_mb_emit_ldloc (mb, aklass);
9237 mono_mb_emit_icall (mb, mono_object_isinst);
9238 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9240 /* if (vklass->idepth < aklass->idepth) goto failue */
9241 mono_mb_emit_ldloc (mb, vklass);
9242 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9243 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9245 mono_mb_emit_ldloc (mb, aklass);
9246 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9247 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9249 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9251 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9252 mono_mb_emit_ldloc (mb, vklass);
9253 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9254 mono_mb_emit_byte (mb, CEE_LDIND_I);
9256 mono_mb_emit_ldloc (mb, aklass);
9257 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9258 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9259 mono_mb_emit_icon (mb, 1);
9260 mono_mb_emit_byte (mb, CEE_SUB);
9261 mono_mb_emit_icon (mb, sizeof (void*));
9262 mono_mb_emit_byte (mb, CEE_MUL);
9263 mono_mb_emit_byte (mb, CEE_ADD);
9264 mono_mb_emit_byte (mb, CEE_LDIND_I);
9266 mono_mb_emit_ldloc (mb, aklass);
9267 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9270 mono_mb_patch_branch (mb, b1);
9271 mono_mb_emit_ldloc (mb, array_slot_addr);
9272 mono_mb_emit_ldarg (mb, 2);
9273 mono_mb_emit_byte (mb, CEE_STIND_REF);
9274 mono_mb_emit_byte (mb, CEE_RET);
9277 mono_mb_patch_branch (mb, b2);
9278 mono_mb_patch_branch (mb, b3);
9280 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9283 case STELEMREF_INTERFACE:
9290 klass = array->obj.vtable->klass->element_class;
9292 uiid = klass->interface_id;
9293 if (uiid > vt->max_interface_id)
9295 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9298 mono_array_setref (array, index, value);
9301 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9303 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9304 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9305 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9306 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9308 /* ldelema (implicit bound check) */
9309 load_array_element_address (mb);
9310 mono_mb_emit_stloc (mb, array_slot_addr);
9312 /* if (!value) goto do_store */
9313 mono_mb_emit_ldarg (mb, 2);
9314 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9316 /* klass = array->vtable->klass->element_class */
9317 load_array_class (mb, aklass);
9319 /* vt = value->vtable */
9320 mono_mb_emit_ldarg (mb, 2);
9321 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9322 mono_mb_emit_byte (mb, CEE_LDIND_I);
9323 mono_mb_emit_stloc (mb, vtable);
9325 /* uiid = klass->interface_id; */
9326 mono_mb_emit_ldloc (mb, aklass);
9327 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9328 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9329 mono_mb_emit_stloc (mb, uiid);
9331 /*if (uiid > vt->max_interface_id)*/
9332 mono_mb_emit_ldloc (mb, uiid);
9333 mono_mb_emit_ldloc (mb, vtable);
9334 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9335 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9336 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9338 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9340 /*vt->interface_bitmap*/
9341 mono_mb_emit_ldloc (mb, vtable);
9342 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9343 mono_mb_emit_byte (mb, CEE_LDIND_I);
9346 mono_mb_emit_ldloc (mb, uiid);
9347 mono_mb_emit_icon (mb, 3);
9348 mono_mb_emit_byte (mb, CEE_SHR_UN);
9350 /*vt->interface_bitmap [(uiid) >> 3]*/
9351 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9352 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9354 /*(1 << ((uiid)&7)))*/
9355 mono_mb_emit_icon (mb, 1);
9356 mono_mb_emit_ldloc (mb, uiid);
9357 mono_mb_emit_icon (mb, 7);
9358 mono_mb_emit_byte (mb, CEE_AND);
9359 mono_mb_emit_byte (mb, CEE_SHL);
9361 /*bitwise and the whole thing*/
9362 mono_mb_emit_byte (mb, CEE_AND);
9363 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9366 mono_mb_patch_branch (mb, b1);
9367 mono_mb_emit_ldloc (mb, array_slot_addr);
9368 mono_mb_emit_ldarg (mb, 2);
9369 mono_mb_emit_byte (mb, CEE_STIND_REF);
9370 mono_mb_emit_byte (mb, CEE_RET);
9373 mono_mb_patch_branch (mb, b2);
9374 mono_mb_patch_branch (mb, b3);
9375 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9379 mono_mb_emit_ldarg (mb, 0);
9380 mono_mb_emit_ldarg (mb, 1);
9381 mono_mb_emit_ldarg (mb, 2);
9382 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9383 mono_mb_emit_byte (mb, CEE_RET);
9386 #endif /* DISABLE_JIT */
9387 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9388 info->d.virtual_stelemref.kind = kind;
9389 res = mono_mb_create (mb, signature, 4, info);
9390 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9392 mono_marshal_lock ();
9393 if (!cached_methods [kind]) {
9394 cached_methods [kind] = res;
9395 mono_marshal_unlock ();
9397 mono_marshal_unlock ();
9398 mono_free_method (res);
9402 return cached_methods [kind];
9406 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9410 g_assert (array_class->rank == 1);
9411 kind = get_virtual_stelemref_kind (array_class->element_class);
9413 return get_virtual_stelemref_wrapper (kind);
9417 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9422 *nwrappers = STELEMREF_KIND_COUNT;
9423 res = g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9424 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9425 res [i] = get_virtual_stelemref_wrapper (i);
9430 * The wrapper info for the wrapper is a WrapperInfo structure.
9433 mono_marshal_get_stelemref (void)
9435 static MonoMethod* ret = NULL;
9436 MonoMethodSignature *sig;
9437 MonoMethodBuilder *mb;
9440 guint32 b1, b2, b3, b4;
9443 int array_slot_addr;
9448 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9451 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9453 /* void stelemref (void* array, int idx, void* value) */
9454 sig->ret = &mono_defaults.void_class->byval_arg;
9455 sig->params [0] = &mono_defaults.object_class->byval_arg;
9456 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9457 sig->params [2] = &mono_defaults.object_class->byval_arg;
9460 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9461 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9462 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9466 <ldelema (bound check)>
9470 aklass = array->vtable->klass->element_class;
9471 vklass = value->vtable->klass;
9473 if (vklass->idepth < aklass->idepth)
9476 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9480 *array_slot_addr = value;
9484 if (mono_object_isinst (value, aklass))
9487 throw new ArrayTypeMismatchException ();
9490 /* ldelema (implicit bound check) */
9491 mono_mb_emit_ldarg (mb, 0);
9492 mono_mb_emit_ldarg (mb, 1);
9493 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9494 mono_mb_emit_stloc (mb, array_slot_addr);
9496 /* if (!value) goto do_store */
9497 mono_mb_emit_ldarg (mb, 2);
9498 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9500 /* aklass = array->vtable->klass->element_class */
9501 mono_mb_emit_ldarg (mb, 0);
9502 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9503 mono_mb_emit_byte (mb, CEE_LDIND_I);
9504 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9505 mono_mb_emit_byte (mb, CEE_LDIND_I);
9506 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9507 mono_mb_emit_byte (mb, CEE_LDIND_I);
9508 mono_mb_emit_stloc (mb, aklass);
9510 /* vklass = value->vtable->klass */
9511 mono_mb_emit_ldarg (mb, 2);
9512 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9513 mono_mb_emit_byte (mb, CEE_LDIND_I);
9514 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9515 mono_mb_emit_byte (mb, CEE_LDIND_I);
9516 mono_mb_emit_stloc (mb, vklass);
9518 /* if (vklass->idepth < aklass->idepth) goto failue */
9519 mono_mb_emit_ldloc (mb, vklass);
9520 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9521 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9523 mono_mb_emit_ldloc (mb, aklass);
9524 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9525 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9527 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9529 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9530 mono_mb_emit_ldloc (mb, vklass);
9531 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9532 mono_mb_emit_byte (mb, CEE_LDIND_I);
9534 mono_mb_emit_ldloc (mb, aklass);
9535 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9536 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9537 mono_mb_emit_icon (mb, 1);
9538 mono_mb_emit_byte (mb, CEE_SUB);
9539 mono_mb_emit_icon (mb, sizeof (void*));
9540 mono_mb_emit_byte (mb, CEE_MUL);
9541 mono_mb_emit_byte (mb, CEE_ADD);
9542 mono_mb_emit_byte (mb, CEE_LDIND_I);
9544 mono_mb_emit_ldloc (mb, aklass);
9546 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9548 copy_pos = mono_mb_get_label (mb);
9550 mono_mb_patch_branch (mb, b1);
9551 mono_mb_emit_ldloc (mb, array_slot_addr);
9552 mono_mb_emit_ldarg (mb, 2);
9553 mono_mb_emit_byte (mb, CEE_STIND_REF);
9555 mono_mb_emit_byte (mb, CEE_RET);
9558 mono_mb_patch_branch (mb, b2);
9559 mono_mb_patch_branch (mb, b3);
9561 mono_mb_emit_ldarg (mb, 2);
9562 mono_mb_emit_ldloc (mb, aklass);
9563 mono_mb_emit_icall (mb, mono_object_isinst);
9565 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9566 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9567 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9569 mono_mb_emit_byte (mb, CEE_RET);
9571 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9572 ret = mono_mb_create (mb, sig, 4, info);
9579 * mono_marshal_get_gsharedvt_in_wrapper:
9581 * This wrapper handles calls from normal code to gsharedvt code.
9583 * The wrapper info for the wrapper is a WrapperInfo structure.
9586 mono_marshal_get_gsharedvt_in_wrapper (void)
9588 static MonoMethod* ret = NULL;
9589 MonoMethodSignature *sig;
9590 MonoMethodBuilder *mb;
9596 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
9598 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9599 sig->ret = &mono_defaults.void_class->byval_arg;
9603 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9605 mono_mb_emit_byte (mb, CEE_RET);
9607 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
9608 ret = mono_mb_create (mb, sig, 4, info);
9615 * mono_marshal_get_gsharedvt_out_wrapper:
9617 * This wrapper handles calls from gsharedvt code to normal code.
9619 * The wrapper info for the wrapper is a WrapperInfo structure.
9622 mono_marshal_get_gsharedvt_out_wrapper (void)
9624 static MonoMethod* ret = NULL;
9625 MonoMethodSignature *sig;
9626 MonoMethodBuilder *mb;
9632 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
9634 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9635 sig->ret = &mono_defaults.void_class->byval_arg;
9639 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9641 mono_mb_emit_byte (mb, CEE_RET);
9643 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
9644 ret = mono_mb_create (mb, sig, 4, info);
9656 /* LOCKING: vars accessed under the marshal lock */
9657 static ArrayElemAddr *elem_addr_cache = NULL;
9658 static int elem_addr_cache_size = 0;
9659 static int elem_addr_cache_next = 0;
9662 * mono_marshal_get_array_address:
9663 * @rank: rank of the array type
9664 * @elem_size: size in bytes of an element of an array.
9666 * Returns a MonoMethod that implements the code to get the address
9667 * of an element in a multi-dimenasional array of @rank dimensions.
9668 * The returned method takes an array as the first argument and then
9669 * @rank indexes for the @rank dimensions.
9670 * If ELEM_SIZE is 0, read the array size from the array object.
9673 mono_marshal_get_array_address (int rank, int elem_size)
9676 MonoMethodBuilder *mb;
9677 MonoMethodSignature *sig;
9680 int i, bounds, ind, realidx;
9681 int branch_pos, *branch_positions;
9685 mono_marshal_lock ();
9686 for (i = 0; i < elem_addr_cache_next; ++i) {
9687 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9688 ret = elem_addr_cache [i].method;
9692 mono_marshal_unlock ();
9696 branch_positions = g_new0 (int, rank);
9698 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9700 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9701 sig->ret = &mono_defaults.int_class->byval_arg;
9702 sig->params [0] = &mono_defaults.object_class->byval_arg;
9703 for (i = 0; i < rank; ++i) {
9704 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9707 name = g_strdup_printf ("ElementAddr_%d", elem_size);
9708 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9712 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9713 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9714 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9716 /* bounds = array->bounds; */
9717 mono_mb_emit_ldarg (mb, 0);
9718 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
9719 mono_mb_emit_byte (mb, CEE_LDIND_I);
9720 mono_mb_emit_stloc (mb, bounds);
9722 /* ind is the overall element index, realidx is the partial index in a single dimension */
9723 /* ind = idx0 - bounds [0].lower_bound */
9724 mono_mb_emit_ldarg (mb, 1);
9725 mono_mb_emit_ldloc (mb, bounds);
9726 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9727 mono_mb_emit_byte (mb, CEE_ADD);
9728 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9729 mono_mb_emit_byte (mb, CEE_SUB);
9730 mono_mb_emit_stloc (mb, ind);
9731 /* if (ind >= bounds [0].length) goto exeception; */
9732 mono_mb_emit_ldloc (mb, ind);
9733 mono_mb_emit_ldloc (mb, bounds);
9734 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9735 mono_mb_emit_byte (mb, CEE_ADD);
9736 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9737 /* note that we use unsigned comparison */
9738 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9740 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9741 * We could also decide to ignore the passed elem_size and get it
9742 * from the array object, to reduce the number of methods we generate:
9743 * the additional cost is 3 memory loads and a non-immediate mul.
9745 for (i = 1; i < rank; ++i) {
9746 /* realidx = idxi - bounds [i].lower_bound */
9747 mono_mb_emit_ldarg (mb, 1 + i);
9748 mono_mb_emit_ldloc (mb, bounds);
9749 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9750 mono_mb_emit_byte (mb, CEE_ADD);
9751 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9752 mono_mb_emit_byte (mb, CEE_SUB);
9753 mono_mb_emit_stloc (mb, realidx);
9754 /* if (realidx >= bounds [i].length) goto exeception; */
9755 mono_mb_emit_ldloc (mb, realidx);
9756 mono_mb_emit_ldloc (mb, bounds);
9757 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9758 mono_mb_emit_byte (mb, CEE_ADD);
9759 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9760 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9761 /* ind = ind * bounds [i].length + realidx */
9762 mono_mb_emit_ldloc (mb, ind);
9763 mono_mb_emit_ldloc (mb, bounds);
9764 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9765 mono_mb_emit_byte (mb, CEE_ADD);
9766 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9767 mono_mb_emit_byte (mb, CEE_MUL);
9768 mono_mb_emit_ldloc (mb, realidx);
9769 mono_mb_emit_byte (mb, CEE_ADD);
9770 mono_mb_emit_stloc (mb, ind);
9773 /* return array->vector + ind * element_size */
9774 mono_mb_emit_ldarg (mb, 0);
9775 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
9776 mono_mb_emit_ldloc (mb, ind);
9778 mono_mb_emit_icon (mb, elem_size);
9780 /* Load arr->vtable->klass->sizes.element_class */
9781 mono_mb_emit_ldarg (mb, 0);
9782 mono_mb_emit_byte (mb, CEE_CONV_I);
9783 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9784 mono_mb_emit_byte (mb, CEE_ADD);
9785 mono_mb_emit_byte (mb, CEE_LDIND_I);
9786 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9787 mono_mb_emit_byte (mb, CEE_ADD);
9788 mono_mb_emit_byte (mb, CEE_LDIND_I);
9789 /* sizes is an union, so this reads sizes.element_size */
9790 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
9791 mono_mb_emit_byte (mb, CEE_ADD);
9792 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9794 mono_mb_emit_byte (mb, CEE_MUL);
9795 mono_mb_emit_byte (mb, CEE_ADD);
9796 mono_mb_emit_byte (mb, CEE_RET);
9798 /* patch the branches to get here and throw */
9799 for (i = 1; i < rank; ++i) {
9800 mono_mb_patch_branch (mb, branch_positions [i]);
9802 mono_mb_patch_branch (mb, branch_pos);
9803 /* throw exception */
9804 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9806 g_free (branch_positions);
9807 #endif /* DISABLE_JIT */
9809 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
9810 info->d.element_addr.rank = rank;
9811 info->d.element_addr.elem_size = elem_size;
9812 ret = mono_mb_create (mb, sig, 4, info);
9815 /* cache the result */
9817 mono_marshal_lock ();
9818 for (i = 0; i < elem_addr_cache_next; ++i) {
9819 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9820 /* FIXME: free ret */
9821 ret = elem_addr_cache [i].method;
9827 if (elem_addr_cache_next >= elem_addr_cache_size) {
9828 int new_size = elem_addr_cache_size + 4;
9829 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9830 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9831 g_free (elem_addr_cache);
9832 elem_addr_cache = new_array;
9833 elem_addr_cache_size = new_size;
9835 elem_addr_cache [elem_addr_cache_next].rank = rank;
9836 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9837 elem_addr_cache [elem_addr_cache_next].method = ret;
9838 elem_addr_cache_next ++;
9840 mono_marshal_unlock ();
9845 * mono_marshal_get_array_accessor_wrapper:
9847 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
9850 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
9852 MonoMethodSignature *sig;
9853 MonoMethodBuilder *mb;
9857 MonoGenericContext *ctx = NULL;
9858 MonoMethod *orig_method = NULL;
9859 MonoGenericContainer *container = NULL;
9863 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
9864 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
9865 * FIXME: Use generic methods.
9872 g_assert_not_reached ();
9874 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
9875 if ((res = mono_marshal_find_in_cache (cache, method)))
9879 sig = signature_dup (method->klass->image, mono_method_signature (method));
9882 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9885 /* Call the method */
9887 mono_mb_emit_ldarg (mb, 0);
9888 for (i = 0; i < sig->param_count; i++)
9889 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9893 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9894 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9896 mono_mb_emit_managed_call (mb, method, NULL);
9898 mono_mb_emit_byte (mb, CEE_RET);
9903 def = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
9904 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9906 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
9907 info->d.array_accessor.method = method;
9909 res = mono_mb_create_and_cache_full (cache, method,
9910 mb, sig, sig->param_count + 16,
9919 mono_marshal_alloc (gulong size)
9924 res = CoTaskMemAlloc (size);
9926 res = g_try_malloc ((gulong)size);
9928 mono_gc_out_of_memory ((gulong)size);
9934 mono_marshal_free (gpointer ptr)
9937 CoTaskMemFree (ptr);
9944 mono_marshal_free_array (gpointer *ptr, int size)
9951 for (i = 0; i < size; i++)
9957 mono_marshal_string_to_utf16 (MonoString *s)
9959 return s ? mono_string_chars (s) : NULL;
9963 mono_marshal_string_to_utf16_copy (MonoString *s)
9968 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
9969 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
9970 res [mono_string_length (s)] = 0;
9976 * mono_marshal_set_last_error:
9978 * This function is invoked to set the last error value from a P/Invoke call
9979 * which has SetLastError set.
9982 mono_marshal_set_last_error (void)
9985 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
9987 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
9992 mono_marshal_set_last_error_windows (int error)
9995 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10000 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10001 gpointer dest, gint32 length)
10006 MONO_CHECK_ARG_NULL (src,);
10007 MONO_CHECK_ARG_NULL (dest,);
10009 if (src->obj.vtable->klass->rank != 1) {
10010 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10013 if (start_index < 0) {
10014 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10018 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10021 if (start_index + length > mono_array_length (src)) {
10022 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10026 element_size = mono_array_element_size (src->obj.vtable->klass);
10028 /* no references should be involved */
10029 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10031 memcpy (dest, source_addr, length * element_size);
10035 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10036 MonoArray *dest, gint32 length)
10041 MONO_CHECK_ARG_NULL (src,);
10042 MONO_CHECK_ARG_NULL (dest,);
10044 if (dest->obj.vtable->klass->rank != 1) {
10045 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10048 if (start_index < 0) {
10049 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10053 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10056 if (start_index + length > mono_array_length (dest)) {
10057 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10060 element_size = mono_array_element_size (dest->obj.vtable->klass);
10062 /* no references should be involved */
10063 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10065 memcpy (dest_addr, src, length * element_size);
10069 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10074 return mono_string_new (mono_domain_get (), ptr);
10078 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10081 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10084 return mono_string_new_len (mono_domain_get (), ptr, len);
10089 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10091 MonoDomain *domain = mono_domain_get ();
10101 return mono_string_new_utf16 (domain, ptr, len);
10105 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10107 MonoDomain *domain = mono_domain_get ();
10110 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10113 return mono_string_new_utf16 (domain, ptr, len);
10118 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10120 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10124 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10130 MONO_CHECK_ARG_NULL (rtype, 0);
10132 type = rtype->type;
10133 klass = mono_class_from_mono_type (type);
10134 if (!mono_class_init (klass)) {
10135 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10139 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10141 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10142 return sizeof (gpointer);
10143 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10145 MonoException *exc;
10147 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10148 exc = mono_get_exception_argument ("t", msg);
10150 mono_set_pending_exception (exc);
10154 return mono_class_native_size (klass, NULL);
10158 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10160 MonoMethod *method;
10163 MONO_CHECK_ARG_NULL (obj,);
10164 MONO_CHECK_ARG_NULL (dst,);
10166 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10170 pa [2] = &delete_old;
10172 mono_runtime_invoke (method, NULL, pa, NULL);
10176 ptr_to_structure (gpointer src, MonoObject *dst)
10178 MonoMethod *method;
10181 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10186 mono_runtime_invoke (method, NULL, pa, NULL);
10190 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10194 MONO_CHECK_ARG_NULL (src,);
10195 MONO_CHECK_ARG_NULL (dst,);
10197 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10199 if (t->type == MONO_TYPE_VALUETYPE) {
10200 MonoException *exc;
10203 tmp = g_strdup_printf ("Destination is a boxed value type.");
10204 exc = mono_get_exception_argument ("dst", tmp);
10207 mono_set_pending_exception (exc);
10211 ptr_to_structure (src, dst);
10215 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10218 MonoDomain *domain = mono_domain_get ();
10223 MONO_CHECK_ARG_NULL (type, NULL);
10225 klass = mono_class_from_mono_type (type->type);
10226 if (!mono_class_init (klass)) {
10227 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10231 res = mono_object_new (domain, klass);
10233 ptr_to_structure (src, res);
10239 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10241 MonoMarshalType *info;
10244 int match_index = -1;
10246 MONO_CHECK_ARG_NULL (type, 0);
10247 MONO_CHECK_ARG_NULL (field_name, 0);
10249 fname = mono_string_to_utf8 (field_name);
10250 klass = mono_class_from_mono_type (type->type);
10251 if (!mono_class_init (klass)) {
10252 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10256 while (klass && match_index == -1) {
10257 MonoClassField* field;
10259 gpointer iter = NULL;
10260 while ((field = mono_class_get_fields (klass, &iter))) {
10261 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10263 if (!strcmp (fname, mono_field_get_name (field))) {
10270 if (match_index == -1)
10271 klass = klass->parent;
10276 if(match_index == -1) {
10277 MonoException* exc;
10280 /* Get back original class instance */
10281 klass = mono_class_from_mono_type (type->type);
10283 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10284 exc = mono_get_exception_argument ("fieldName", tmp);
10287 mono_set_pending_exception ((MonoException*)exc);
10291 info = mono_marshal_load_type_info (klass);
10292 return info->fields [match_index].offset;
10296 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10301 tres = mono_string_to_utf8 (string);
10305 len = strlen (tres) + 1;
10306 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10307 memcpy (ret, tres, len);
10312 return mono_string_to_utf8 (string);
10317 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10319 if (string == NULL)
10322 #ifdef TARGET_WIN32
10323 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10324 ((mono_string_length (string) + 1) * 2);
10326 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
10328 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10329 res [mono_string_length (string)] = 0;
10335 mono_struct_delete_old (MonoClass *klass, char *ptr)
10337 MonoMarshalType *info;
10340 info = mono_marshal_load_type_info (klass);
10342 for (i = 0; i < info->num_fields; i++) {
10343 MonoMarshalConv conv;
10344 MonoType *ftype = info->fields [i].field->type;
10347 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10350 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10351 klass->unicode, &conv);
10353 cpos = ptr + info->fields [i].offset;
10356 case MONO_MARSHAL_CONV_NONE:
10357 if (MONO_TYPE_ISSTRUCT (ftype)) {
10358 mono_struct_delete_old (ftype->data.klass, cpos);
10362 case MONO_MARSHAL_CONV_STR_LPWSTR:
10363 /* We assume this field points inside a MonoString */
10365 case MONO_MARSHAL_CONV_STR_LPTSTR:
10366 #ifdef TARGET_WIN32
10367 /* We assume this field points inside a MonoString
10371 case MONO_MARSHAL_CONV_STR_LPSTR:
10372 case MONO_MARSHAL_CONV_STR_BSTR:
10373 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10374 case MONO_MARSHAL_CONV_STR_TBSTR:
10375 mono_marshal_free (*(gpointer *)cpos);
10385 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10389 MONO_CHECK_ARG_NULL (src,);
10390 MONO_CHECK_ARG_NULL (type,);
10392 klass = mono_class_from_mono_type (type->type);
10393 if (!mono_class_init (klass)) {
10394 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10398 mono_struct_delete_old (klass, (char *)src);
10402 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
10406 if ((gulong)size == 0)
10407 /* This returns a valid pointer for size 0 on MS.NET */
10411 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
10413 res = g_try_malloc ((gulong)size);
10416 mono_gc_out_of_memory ((gulong)size);
10422 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
10427 mono_gc_out_of_memory ((gulong)size);
10432 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
10434 res = g_try_realloc (ptr, (gulong)size);
10437 mono_gc_out_of_memory ((gulong)size);
10443 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10453 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10458 res = CoTaskMemAlloc (size);
10460 if ((gulong)size == 0)
10461 /* This returns a valid pointer for size 0 on MS.NET */
10464 res = g_try_malloc ((gulong)size);
10467 mono_gc_out_of_memory ((gulong)size);
10472 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10475 CoTaskMemFree (ptr);
10482 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10487 res = CoTaskMemRealloc (ptr, size);
10489 res = g_try_realloc (ptr, (gulong)size);
10492 mono_gc_out_of_memory ((gulong)size);
10497 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10499 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10503 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10505 MonoClass *klass = mono_type_get_class (type->type);
10506 if (!mono_class_init (klass)) {
10507 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10511 return mono_ftnptr_to_delegate (klass, ftn);
10515 * mono_marshal_is_loading_type_info:
10517 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10521 mono_marshal_is_loading_type_info (MonoClass *klass)
10523 GSList *loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10525 return g_slist_find (loads_list, klass) != NULL;
10529 * mono_marshal_load_type_info:
10531 * Initialize klass->marshal_info using information from metadata. This function can
10532 * recursively call itself, and the caller is responsible to avoid that by calling
10533 * mono_marshal_is_loading_type_info () beforehand.
10535 * LOCKING: Acquires the loader lock.
10538 mono_marshal_load_type_info (MonoClass* klass)
10541 guint32 native_size = 0, min_align = 1, packing;
10542 MonoMarshalType *info;
10543 MonoClassField* field;
10546 GSList *loads_list;
10548 g_assert (klass != NULL);
10550 if (klass->marshal_info)
10551 return klass->marshal_info;
10553 if (!klass->inited)
10554 mono_class_init (klass);
10556 if (klass->marshal_info)
10557 return klass->marshal_info;
10560 * This function can recursively call itself, so we keep the list of classes which are
10561 * under initialization in a TLS list.
10563 g_assert (!mono_marshal_is_loading_type_info (klass));
10564 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10565 loads_list = g_slist_prepend (loads_list, klass);
10566 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10569 while ((field = mono_class_get_fields (klass, &iter))) {
10570 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10572 if (mono_field_is_deleted (field))
10577 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10579 /* The mempool is protected by the loader lock */
10580 info = mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
10581 info->num_fields = count;
10583 /* Try to find a size for this type in metadata */
10584 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10586 if (klass->parent) {
10587 int parent_size = mono_class_native_size (klass->parent, NULL);
10589 /* Add parent size to real size */
10590 native_size += parent_size;
10591 info->native_size = parent_size;
10594 packing = klass->packing_size ? klass->packing_size : 8;
10597 while ((field = mono_class_get_fields (klass, &iter))) {
10601 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10604 if (mono_field_is_deleted (field))
10606 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10607 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10608 NULL, NULL, &info->fields [j].mspec);
10610 info->fields [j].field = field;
10612 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10613 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
10614 /* This field is a hack inserted by MCS to empty structures */
10619 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10620 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10621 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10622 &align, TRUE, klass->unicode);
10623 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10624 min_align = MAX (align, min_align);
10625 info->fields [j].offset = info->native_size;
10626 info->fields [j].offset += align - 1;
10627 info->fields [j].offset &= ~(align - 1);
10628 info->native_size = info->fields [j].offset + size;
10630 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10631 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10632 &align, TRUE, klass->unicode);
10633 min_align = MAX (align, min_align);
10634 info->fields [j].offset = field->offset - sizeof (MonoObject);
10635 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10641 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10642 info->native_size = MAX (native_size, info->native_size);
10644 * If the provided Size is equal or larger than the calculated size, and there
10645 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
10647 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
10648 if (native_size && native_size == info->native_size && klass->packing_size == 0)
10651 min_align = MIN (min_align, packing);
10655 if (info->native_size & (min_align - 1)) {
10656 info->native_size += min_align - 1;
10657 info->native_size &= ~(min_align - 1);
10660 info->min_align = min_align;
10662 /* Update the class's blittable info, if the layouts don't match */
10663 if (info->native_size != mono_class_value_size (klass, NULL))
10664 klass->blittable = FALSE;
10666 /* If this is an array type, ensure that we have element info */
10667 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
10668 mono_marshal_load_type_info (klass->element_class);
10671 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10672 loads_list = g_slist_remove (loads_list, klass);
10673 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10675 mono_marshal_lock ();
10676 if (!klass->marshal_info) {
10677 /*We do double-checking locking on marshal_info */
10678 mono_memory_barrier ();
10679 klass->marshal_info = info;
10681 mono_marshal_unlock ();
10683 return klass->marshal_info;
10687 * mono_class_native_size:
10690 * Returns: the native size of an object instance (when marshaled
10691 * to unmanaged code)
10694 mono_class_native_size (MonoClass *klass, guint32 *align)
10696 if (!klass->marshal_info) {
10697 if (mono_marshal_is_loading_type_info (klass)) {
10702 mono_marshal_load_type_info (klass);
10707 *align = klass->marshal_info->min_align;
10709 return klass->marshal_info->native_size;
10713 * mono_type_native_stack_size:
10714 * @t: the type to return the size it uses on the stack
10716 * Returns: the number of bytes required to hold an instance of this
10717 * type on the native stack
10720 mono_type_native_stack_size (MonoType *t, guint32 *align)
10724 g_assert (t != NULL);
10730 *align = sizeof (gpointer);
10731 return sizeof (gpointer);
10735 case MONO_TYPE_BOOLEAN:
10736 case MONO_TYPE_CHAR:
10747 case MONO_TYPE_STRING:
10748 case MONO_TYPE_OBJECT:
10749 case MONO_TYPE_CLASS:
10750 case MONO_TYPE_SZARRAY:
10751 case MONO_TYPE_PTR:
10752 case MONO_TYPE_FNPTR:
10753 case MONO_TYPE_ARRAY:
10754 *align = sizeof (gpointer);
10755 return sizeof (gpointer);
10760 *align = MONO_ABI_ALIGNOF (double);
10764 *align = MONO_ABI_ALIGNOF (gint64);
10766 case MONO_TYPE_GENERICINST:
10767 if (!mono_type_generic_inst_is_valuetype (t)) {
10768 *align = sizeof (gpointer);
10769 return sizeof (gpointer);
10772 case MONO_TYPE_TYPEDBYREF:
10773 case MONO_TYPE_VALUETYPE: {
10775 MonoClass *klass = mono_class_from_mono_type (t);
10777 if (klass->enumtype)
10778 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
10780 size = mono_class_native_size (klass, align);
10781 *align = *align + 3;
10791 g_error ("type 0x%02x unknown", t->type);
10797 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
10798 gboolean as_field, gboolean unicode)
10800 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
10803 switch (native_type) {
10804 case MONO_NATIVE_BOOLEAN:
10807 case MONO_NATIVE_I1:
10808 case MONO_NATIVE_U1:
10811 case MONO_NATIVE_I2:
10812 case MONO_NATIVE_U2:
10813 case MONO_NATIVE_VARIANTBOOL:
10816 case MONO_NATIVE_I4:
10817 case MONO_NATIVE_U4:
10818 case MONO_NATIVE_ERROR:
10821 case MONO_NATIVE_I8:
10822 case MONO_NATIVE_U8:
10823 *align = MONO_ABI_ALIGNOF (gint64);
10825 case MONO_NATIVE_R4:
10828 case MONO_NATIVE_R8:
10829 *align = MONO_ABI_ALIGNOF (double);
10831 case MONO_NATIVE_INT:
10832 case MONO_NATIVE_UINT:
10833 case MONO_NATIVE_LPSTR:
10834 case MONO_NATIVE_LPWSTR:
10835 case MONO_NATIVE_LPTSTR:
10836 case MONO_NATIVE_BSTR:
10837 case MONO_NATIVE_ANSIBSTR:
10838 case MONO_NATIVE_TBSTR:
10839 case MONO_NATIVE_LPARRAY:
10840 case MONO_NATIVE_SAFEARRAY:
10841 case MONO_NATIVE_IUNKNOWN:
10842 case MONO_NATIVE_IDISPATCH:
10843 case MONO_NATIVE_INTERFACE:
10844 case MONO_NATIVE_ASANY:
10845 case MONO_NATIVE_FUNC:
10846 case MONO_NATIVE_LPSTRUCT:
10847 *align = MONO_ABI_ALIGNOF (gpointer);
10848 return sizeof (gpointer);
10849 case MONO_NATIVE_STRUCT:
10850 klass = mono_class_from_mono_type (type);
10851 if (klass == mono_defaults.object_class &&
10852 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
10856 return mono_class_native_size (klass, align);
10857 case MONO_NATIVE_BYVALTSTR: {
10858 int esize = unicode ? 2: 1;
10861 return mspec->data.array_data.num_elem * esize;
10863 case MONO_NATIVE_BYVALARRAY: {
10864 // FIXME: Have to consider ArraySubType
10866 klass = mono_class_from_mono_type (type);
10867 if (klass->element_class == mono_defaults.char_class) {
10868 esize = unicode ? 2 : 1;
10871 esize = mono_class_native_size (klass->element_class, align);
10874 return mspec->data.array_data.num_elem * esize;
10876 case MONO_NATIVE_CUSTOM:
10877 *align = sizeof (gpointer);
10878 return sizeof (gpointer);
10880 case MONO_NATIVE_CURRENCY:
10881 case MONO_NATIVE_VBBYREFSTR:
10883 g_error ("native type %02x not implemented", native_type);
10886 g_assert_not_reached ();
10891 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
10899 t = &o->vtable->klass->byval_arg;
10903 case MONO_TYPE_PTR:
10906 case MONO_TYPE_BOOLEAN:
10909 case MONO_TYPE_CHAR:
10914 return mono_object_unbox (o);
10916 case MONO_TYPE_STRING:
10917 switch (string_encoding) {
10918 case MONO_NATIVE_LPWSTR:
10919 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
10921 case MONO_NATIVE_LPSTR:
10922 return mono_string_to_lpstr ((MonoString*)o);
10925 g_warning ("marshaling conversion %d not implemented", string_encoding);
10926 g_assert_not_reached ();
10929 case MONO_TYPE_CLASS:
10930 case MONO_TYPE_VALUETYPE: {
10931 MonoMethod *method;
10934 MonoBoolean delete_old = FALSE;
10936 klass = t->data.klass;
10938 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
10941 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10942 klass->blittable || klass->enumtype))
10943 return mono_object_unbox (o);
10945 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
10947 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10948 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
10952 pa [2] = &delete_old;
10954 mono_runtime_invoke (method, NULL, pa, NULL);
10962 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
10967 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
10975 t = &o->vtable->klass->byval_arg;
10977 case MONO_TYPE_STRING:
10978 switch (string_encoding) {
10979 case MONO_NATIVE_LPWSTR:
10980 case MONO_NATIVE_LPSTR:
10981 mono_marshal_free (ptr);
10984 g_warning ("marshaling conversion %d not implemented", string_encoding);
10985 g_assert_not_reached ();
10988 case MONO_TYPE_CLASS:
10989 case MONO_TYPE_VALUETYPE: {
10990 klass = t->data.klass;
10992 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10993 klass->blittable || klass->enumtype))
10996 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
10997 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11003 mono_runtime_invoke (method, NULL, pa, NULL);
11006 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11007 mono_struct_delete_old (klass, ptr);
11010 mono_marshal_free (ptr);
11019 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
11021 MonoMethodSignature *sig, *csig;
11022 MonoMethodBuilder *mb;
11027 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11028 mb->method->slot = -1;
11030 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11031 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11033 sig = mono_method_signature (method);
11034 csig = signature_dup (method->klass->image, sig);
11035 csig->generic_param_count = 0;
11037 #ifndef DISABLE_JIT
11038 mono_mb_emit_ldarg (mb, 0);
11039 for (i = 0; i < csig->param_count; i++)
11040 mono_mb_emit_ldarg (mb, i + 1);
11041 mono_mb_emit_managed_call (mb, method, NULL);
11042 mono_mb_emit_byte (mb, CEE_RET);
11044 /* We can corlib internal methods */
11045 mb->skip_visibility = TRUE;
11047 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11048 info->d.generic_array_helper.method = method;
11049 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11057 * The mono_win32_compat_* functions are implementations of inline
11058 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11059 * although not exported by kernel32.
11061 * We map the appropiate kernel32 entries to these functions using
11062 * dllmaps declared in the global etc/mono/config.
11066 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11068 if (!dest || !source)
11071 memcpy (dest, source, length);
11075 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11077 memset (dest, fill, length);
11081 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11083 if (!dest || !source)
11086 memmove (dest, source, length);
11090 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11092 memset (dest, 0, length);
11096 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11101 for (i = 0; i < len; ++i)
11105 g_assert (i < len);
11108 while (byte && !(byte & 1))
11110 g_assert (byte == 1);
11113 *bitmask = buf [i];
11117 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11119 MonoMethodBuilder *mb;
11120 MonoMethodSignature *sig, *csig;
11121 MonoExceptionClause *clause;
11126 int i, param_count, sig_size, pos_leave;
11130 klass = method->klass;
11131 image = method->klass->image;
11132 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11134 if ((res = mono_marshal_find_in_cache (cache, method)))
11137 sig = mono_method_signature (method);
11138 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11140 /* add "this" and exception param */
11141 param_count = sig->param_count + sig->hasthis + 1;
11143 /* dup & extend signature */
11144 csig = mono_metadata_signature_alloc (image, param_count);
11145 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11146 memcpy (csig, sig, sig_size);
11147 csig->param_count = param_count;
11150 csig->call_convention = MONO_CALL_DEFAULT;
11152 if (sig->hasthis) {
11154 csig->params [0] = &klass->byval_arg;
11155 /* move params up by one */
11156 for (i = 0; i < sig->param_count; i++)
11157 csig->params [i + 1] = sig->params [i];
11160 /* setup exception param as byref+[out] */
11161 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11162 &mono_defaults.exception_class->byval_arg);
11163 csig->params [param_count - 1]->byref = 1;
11164 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11166 /* convert struct return to object */
11167 if (MONO_TYPE_ISSTRUCT (sig->ret))
11168 csig->ret = &mono_defaults.object_class->byval_arg;
11170 #ifndef DISABLE_JIT
11171 /* local 0 (temp for exception object) */
11172 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11174 /* local 1 (temp for result) */
11175 if (!MONO_TYPE_IS_VOID (sig->ret))
11176 mono_mb_add_local (mb, sig->ret);
11178 /* clear exception arg */
11179 mono_mb_emit_ldarg (mb, param_count - 1);
11180 mono_mb_emit_byte (mb, CEE_LDNULL);
11181 mono_mb_emit_byte (mb, CEE_STIND_REF);
11184 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11185 clause->try_offset = mono_mb_get_label (mb);
11187 /* push method's args */
11188 for (i = 0; i < param_count - 1; i++) {
11192 mono_mb_emit_ldarg (mb, i);
11194 /* get the byval type of the param */
11195 klass = mono_class_from_mono_type (csig->params [i]);
11196 type = &klass->byval_arg;
11198 /* unbox struct args */
11199 if (MONO_TYPE_ISSTRUCT (type)) {
11200 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11202 /* byref args & and the "this" arg must remain a ptr.
11203 Otherwise make a copy of the value type */
11204 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11205 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11207 csig->params [i] = &mono_defaults.object_class->byval_arg;
11212 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11213 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11215 mono_mb_emit_op (mb, CEE_CALL, method);
11217 /* save result at local 1 */
11218 if (!MONO_TYPE_IS_VOID (sig->ret))
11219 mono_mb_emit_stloc (mb, 1);
11221 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11224 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11225 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11226 clause->data.catch_class = mono_defaults.object_class;
11228 clause->handler_offset = mono_mb_get_label (mb);
11230 /* store exception at local 0 */
11231 mono_mb_emit_stloc (mb, 0);
11232 mono_mb_emit_ldarg (mb, param_count - 1);
11233 mono_mb_emit_ldloc (mb, 0);
11234 mono_mb_emit_byte (mb, CEE_STIND_REF);
11235 mono_mb_emit_branch (mb, CEE_LEAVE);
11237 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11239 mono_mb_set_clauses (mb, 1, clause);
11241 mono_mb_patch_branch (mb, pos_leave);
11244 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11245 mono_mb_emit_ldloc (mb, 1);
11247 /* box the return value */
11248 if (MONO_TYPE_ISSTRUCT (sig->ret))
11249 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11252 mono_mb_emit_byte (mb, CEE_RET);
11255 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11262 * mono_marshal_free_dynamic_wrappers:
11264 * Free wrappers of the dynamic method METHOD.
11267 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11269 MonoImage *image = method->klass->image;
11271 g_assert (method_is_dynamic (method));
11273 /* This could be called during shutdown */
11274 if (marshal_mutex_initialized)
11275 mono_marshal_lock ();
11277 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11278 * they could be shared with other methods ?
11280 if (image->runtime_invoke_direct_cache)
11281 g_hash_table_remove (image->runtime_invoke_direct_cache, method);
11282 if (image->delegate_abstract_invoke_cache)
11283 g_hash_table_foreach_remove (image->delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11284 // FIXME: Need to clear the caches in other images as well
11285 if (image->delegate_bound_static_invoke_cache)
11286 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11288 if (marshal_mutex_initialized)
11289 mono_marshal_unlock ();
11293 signature_pointer_pair_matches_signature (gpointer key, gpointer value, gpointer user_data)
11295 SignaturePointerPair *pair = (SignaturePointerPair*)key;
11296 MonoMethodSignature *sig = (MonoMethodSignature*)user_data;
11298 return mono_metadata_signature_equal (pair->sig, sig);
11302 * mono_marshal_free_inflated_wrappers:
11304 * Free wrappers of the inflated method METHOD.
11307 mono_marshal_free_inflated_wrappers (MonoMethod *method)
11309 MonoMethodSignature *sig = method->signature;
11311 g_assert (method->is_inflated);
11313 /* Ignore calls occuring late during cleanup. */
11314 if (!marshal_mutex_initialized)
11317 mono_marshal_lock ();
11319 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11320 * they could be shared with other methods ?
11324 * indexed by MonoMethodSignature
11326 /* FIXME: This could remove unrelated wrappers as well */
11327 if (sig && method->klass->image->delegate_begin_invoke_cache)
11328 g_hash_table_remove (method->klass->image->delegate_begin_invoke_cache, sig);
11329 if (sig && method->klass->image->delegate_end_invoke_cache)
11330 g_hash_table_remove (method->klass->image->delegate_end_invoke_cache, sig);
11331 if (sig && method->klass->image->delegate_invoke_cache)
11332 g_hash_table_remove (method->klass->image->delegate_invoke_cache, sig);
11333 if (sig && method->klass->image->runtime_invoke_cache)
11334 g_hash_table_remove (method->klass->image->runtime_invoke_cache, sig);
11335 if (sig && method->klass->image->runtime_invoke_vtype_cache)
11336 g_hash_table_remove (method->klass->image->runtime_invoke_vtype_cache, sig);
11339 * indexed by SignaturePointerPair
11341 if (sig && method->klass->image->delegate_abstract_invoke_cache)
11342 g_hash_table_foreach_remove (method->klass->image->delegate_abstract_invoke_cache,
11343 signature_pointer_pair_matches_signature, (gpointer)sig);
11346 * indexed by MonoMethod pointers
11348 if (method->klass->image->runtime_invoke_direct_cache)
11349 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
11350 if (method->klass->image->managed_wrapper_cache)
11351 g_hash_table_remove (method->klass->image->managed_wrapper_cache, method);
11352 if (method->klass->image->native_wrapper_cache)
11353 g_hash_table_remove (method->klass->image->native_wrapper_cache, method);
11354 if (method->klass->image->remoting_invoke_cache)
11355 g_hash_table_remove (method->klass->image->remoting_invoke_cache, method);
11356 if (method->klass->image->synchronized_cache)
11357 g_hash_table_remove (method->klass->image->synchronized_cache, method);
11358 if (method->klass->image->unbox_wrapper_cache)
11359 g_hash_table_remove (method->klass->image->unbox_wrapper_cache, method);
11360 if (method->klass->image->cominterop_invoke_cache)
11361 g_hash_table_remove (method->klass->image->cominterop_invoke_cache, method);
11362 if (method->klass->image->cominterop_wrapper_cache)
11363 g_hash_table_remove (method->klass->image->cominterop_wrapper_cache, method);
11364 if (method->klass->image->thunk_invoke_cache)
11365 g_hash_table_remove (method->klass->image->thunk_invoke_cache, method);
11366 if (method->klass->image->native_func_wrapper_aot_cache)
11367 g_hash_table_remove (method->klass->image->native_func_wrapper_aot_cache, method);
11369 mono_marshal_unlock ();