2 * marshal.c: Routines for marshaling complex types in P/Invoke methods.
5 * Paolo Molaro (lupus@ximian.com)
7 * Copyright 2002-2003 Ximian, Inc (http://www.ximian.com)
8 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
9 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
21 #include "metadata/marshal.h"
22 #include "metadata/method-builder.h"
23 #include "metadata/tabledefs.h"
24 #include "metadata/exception.h"
25 #include "metadata/appdomain.h"
26 #include "mono/metadata/abi-details.h"
27 #include "mono/metadata/debug-helpers.h"
28 #include "mono/metadata/threads.h"
29 #include "mono/metadata/monitor.h"
30 #include "mono/metadata/class-internals.h"
31 #include "mono/metadata/metadata-internals.h"
32 #include "mono/metadata/domain-internals.h"
33 #include "mono/metadata/gc-internals.h"
34 #include "mono/metadata/threads-types.h"
35 #include "mono/metadata/string-icalls.h"
36 #include "mono/metadata/attrdefs.h"
37 #include "mono/metadata/gc-internals.h"
38 #include "mono/metadata/cominterop.h"
39 #include "mono/metadata/remoting.h"
40 #include "mono/metadata/reflection-internals.h"
41 #include "mono/metadata/threadpool-ms.h"
42 #include "mono/utils/mono-counters.h"
43 #include "mono/utils/mono-tls.h"
44 #include "mono/utils/mono-memory-model.h"
45 #include "mono/utils/atomic.h"
46 #include <mono/utils/mono-threads.h>
47 #include <mono/utils/mono-error-internals.h>
52 /* #define DEBUG_RUNTIME_CODE */
54 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
58 #include "mono/cil/opcode.def"
64 * This mutex protects the various marshalling related caches in MonoImage
65 * and a few other data structures static to this file.
67 * The marshal lock is a non-recursive complex lock that sits below the domain lock in the
68 * runtime locking latice. Which means it can take simple locks suck as the image lock.
70 #define mono_marshal_lock() mono_locks_os_acquire (&marshal_mutex, MarshalLock)
71 #define mono_marshal_unlock() mono_locks_os_release (&marshal_mutex, MarshalLock)
72 static mono_mutex_t marshal_mutex;
73 static gboolean marshal_mutex_initialized;
75 static MonoNativeTlsKey last_error_tls_id;
77 static MonoNativeTlsKey load_type_info_tls_id;
79 static gboolean use_aot_wrappers;
82 delegate_hash_table_add (MonoDelegate *d);
85 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
88 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, MonoMarshalNative string_encoding);
91 mono_struct_delete_old (MonoClass *klass, char *ptr);
94 mono_marshal_string_to_utf16 (MonoString *s);
97 mono_marshal_string_to_utf16_copy (MonoString *s);
100 mono_string_to_lpstr (MonoString *string_obj);
102 static MonoStringBuilder *
103 mono_string_utf8_to_builder2 (char *text);
105 static MonoStringBuilder *
106 mono_string_utf16_to_builder2 (gunichar2 *text);
109 mono_string_new_len_wrapper (const char *text, guint length);
112 mono_string_from_byvalstr (const char *data, int len);
115 mono_string_from_byvalwstr (gunichar2 *data, int len);
118 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
121 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum);
124 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
127 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum);
129 static MonoAsyncResult *
130 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
133 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
136 mono_marshal_set_last_error_windows (int error);
139 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache);
141 static void init_safe_handle (void);
144 ves_icall_marshal_alloc (gulong size);
146 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
147 static MonoMethod *sh_dangerous_add_ref;
148 static MonoMethod *sh_dangerous_release;
154 sh_dangerous_add_ref = mono_class_get_method_from_name (
155 mono_defaults.safehandle_class, "DangerousAddRef", 1);
156 sh_dangerous_release = mono_class_get_method_from_name (
157 mono_defaults.safehandle_class, "DangerousRelease", 0);
161 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
163 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
165 mono_register_jit_icall (func, name, sig, save);
169 mono_signature_no_pinvoke (MonoMethod *method)
171 MonoMethodSignature *sig = mono_method_signature (method);
173 sig = mono_metadata_signature_dup_full (method->klass->image, sig);
174 sig->pinvoke = FALSE;
181 mono_marshal_init_tls (void)
183 mono_native_tls_alloc (&last_error_tls_id, NULL);
184 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
188 mono_marshal_init (void)
190 static gboolean module_initialized = FALSE;
192 if (!module_initialized) {
193 module_initialized = TRUE;
194 mono_os_mutex_init_recursive (&marshal_mutex);
195 marshal_mutex_initialized = TRUE;
197 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
198 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
199 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
200 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
201 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
202 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
203 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
204 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
205 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
206 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
207 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
208 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
209 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
210 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
211 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
212 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
213 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
214 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
215 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
216 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
217 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
218 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
219 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
220 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
221 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
222 register_icall (ves_icall_marshal_alloc, "ves_icall_marshal_alloc", "ptr int32", FALSE);
223 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
224 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
225 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
226 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
227 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
228 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
229 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
230 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
231 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
232 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
233 register_icall (g_free, "g_free", "void ptr", FALSE);
234 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
235 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
236 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
237 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
238 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
239 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
240 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
241 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
242 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
243 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
245 mono_cominterop_init ();
246 mono_remoting_init ();
248 if (mono_threads_is_coop_enabled ()) {
249 register_icall (mono_threads_prepare_blocking, "mono_threads_prepare_blocking", "ptr ptr", FALSE);
250 register_icall (mono_threads_finish_blocking, "mono_threads_finish_blocking", "void ptr ptr", FALSE);
251 register_icall (mono_threads_reset_blocking_start, "mono_threads_reset_blocking_start","ptr ptr", TRUE);
252 register_icall (mono_threads_reset_blocking_end, "mono_threads_reset_blocking_end","void ptr ptr", TRUE);
258 mono_marshal_cleanup (void)
260 mono_cominterop_cleanup ();
262 mono_native_tls_free (load_type_info_tls_id);
263 mono_native_tls_free (last_error_tls_id);
264 mono_os_mutex_destroy (&marshal_mutex);
265 marshal_mutex_initialized = FALSE;
269 mono_marshal_lock_internal (void)
271 mono_marshal_lock ();
275 mono_marshal_unlock_internal (void)
277 mono_marshal_unlock ();
281 mono_delegate_to_ftnptr (MonoDelegate *delegate)
283 MonoMethod *method, *wrapper;
285 uint32_t target_handle = 0;
290 if (delegate->delegate_trampoline)
291 return delegate->delegate_trampoline;
293 klass = ((MonoObject *)delegate)->vtable->klass;
294 g_assert (klass->delegate);
296 method = delegate->method;
297 if (delegate->method_is_virtual)
298 method = mono_object_get_virtual_method (delegate->target, method);
300 if (mono_method_signature (method)->pinvoke) {
301 const char *exc_class, *exc_arg;
304 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
306 g_assert (exc_class);
307 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
312 if (delegate->target) {
313 /* Produce a location which can be embedded in JITted code */
314 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
317 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
319 delegate->delegate_trampoline = mono_compile_method (wrapper);
321 // Add the delegate to the delegate hash table
322 delegate_hash_table_add (delegate);
324 /* when the object is collected, collect the dynamic method, too */
325 mono_object_register_finalizer ((MonoObject*)delegate);
327 return delegate->delegate_trampoline;
331 * this hash table maps from a delegate trampoline object to a weak reference
332 * of the delegate. As an optimizations with a non-moving GC we store the
333 * object pointer itself, otherwise we use a GC handle.
335 static GHashTable *delegate_hash_table;
338 delegate_hash_table_new (void) {
339 return g_hash_table_new (NULL, NULL);
343 delegate_hash_table_remove (MonoDelegate *d)
345 guint32 gchandle = 0;
347 mono_marshal_lock ();
348 if (delegate_hash_table == NULL)
349 delegate_hash_table = delegate_hash_table_new ();
350 if (mono_gc_is_moving ())
351 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
352 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
353 mono_marshal_unlock ();
354 if (gchandle && mono_gc_is_moving ())
355 mono_gchandle_free (gchandle);
359 delegate_hash_table_add (MonoDelegate *d)
362 guint32 old_gchandle;
364 mono_marshal_lock ();
365 if (delegate_hash_table == NULL)
366 delegate_hash_table = delegate_hash_table_new ();
367 if (mono_gc_is_moving ()) {
368 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
369 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
370 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
372 mono_gchandle_free (old_gchandle);
374 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
376 mono_marshal_unlock ();
380 * mono_marshal_use_aot_wrappers:
382 * Instructs this module to use AOT compatible wrappers.
385 mono_marshal_use_aot_wrappers (gboolean use)
387 use_aot_wrappers = use;
391 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
393 static MonoClass *UnmanagedFunctionPointerAttribute;
394 MonoCustomAttrInfo *cinfo;
395 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
397 if (!UnmanagedFunctionPointerAttribute)
398 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
400 /* The attribute is only available in Net 2.0 */
401 if (UnmanagedFunctionPointerAttribute) {
403 * The pinvoke attributes are stored in a real custom attribute so we have to
406 cinfo = mono_custom_attrs_from_class (klass);
407 if (cinfo && !mono_runtime_get_no_exec ()) {
409 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, UnmanagedFunctionPointerAttribute, &error);
411 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
413 if (!mono_error_ok (&error)) {
414 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
415 mono_error_cleanup (&error);
419 mono_custom_attrs_free (cinfo);
425 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
433 mono_marshal_lock ();
434 if (delegate_hash_table == NULL)
435 delegate_hash_table = delegate_hash_table_new ();
437 if (mono_gc_is_moving ()) {
438 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
439 mono_marshal_unlock ();
441 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
445 d = (MonoDelegate *)g_hash_table_lookup (delegate_hash_table, ftn);
446 mono_marshal_unlock ();
449 /* This is a native function, so construct a delegate for it */
450 MonoMethodSignature *sig;
452 MonoMarshalSpec **mspecs;
453 MonoMethod *invoke = mono_get_delegate_invoke (klass);
454 MonoMethodPInvoke piinfo;
455 MonoObject *this_obj;
458 if (use_aot_wrappers) {
459 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
460 this_obj = mono_value_box (mono_domain_get (), mono_defaults.int_class, &ftn);
462 memset (&piinfo, 0, sizeof (piinfo));
463 parse_unmanaged_function_pointer_attr (klass, &piinfo);
465 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
466 mono_method_get_marshal_info (invoke, mspecs);
467 /* Freed below so don't alloc from mempool */
468 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
471 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
474 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
476 mono_metadata_free_marshal_spec (mspecs [i]);
481 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
482 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, mono_compile_method (wrapper), wrapper);
485 if (d->object.vtable->domain != mono_domain_get ())
486 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
492 mono_delegate_free_ftnptr (MonoDelegate *delegate)
497 delegate_hash_table_remove (delegate);
499 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
501 if (!delegate->target) {
502 /* The wrapper method is shared between delegates -> no need to free it */
511 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
514 method = mono_jit_info_get_method (ji);
515 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
517 /*the target gchandle is the first entry after size and the wrapper itself.*/
518 gchandle = GPOINTER_TO_UINT (method_data [2]);
521 mono_gchandle_free (gchandle);
523 mono_runtime_free_method (mono_object_domain (delegate), method);
528 mono_string_from_byvalstr (const char *data, int max_len)
530 MonoDomain *domain = mono_domain_get ();
536 while (len < max_len - 1 && data [len])
539 return mono_string_new_len (domain, data, len);
543 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
545 MonoDomain *domain = mono_domain_get ();
551 while (data [len]) len++;
553 return mono_string_new_utf16 (domain, data, MIN (len, max_len));
557 mono_array_to_savearray (MonoArray *array)
562 g_assert_not_reached ();
567 mono_array_to_lparray (MonoArray *array)
570 gpointer *nativeArray = NULL;
571 int nativeArraySize = 0;
581 klass = array->obj.vtable->klass;
583 switch (klass->element_class->byval_arg.type) {
585 g_assert_not_reached ();
587 case MONO_TYPE_CLASS:
588 nativeArraySize = array->max_length;
589 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
590 for(i = 0; i < nativeArraySize; ++i)
591 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
594 case MONO_TYPE_BOOLEAN:
607 case MONO_TYPE_VALUETYPE:
611 case MONO_TYPE_GENERICINST:
612 case MONO_TYPE_OBJECT:
613 case MONO_TYPE_ARRAY:
614 case MONO_TYPE_SZARRAY:
615 case MONO_TYPE_STRING:
617 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
618 g_assert_not_reached ();
621 return array->vector;
625 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
636 klass = array->obj.vtable->klass;
638 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
639 for(i = 0; i < array->max_length; ++i)
640 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
647 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
649 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
651 if (elclass == mono_defaults.byte_class) {
652 GError *error = NULL;
656 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
659 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
663 g_error_free (error);
666 g_assert_not_reached ();
670 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
672 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
676 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
678 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
680 if (elclass == mono_defaults.byte_class) {
682 GError *error = NULL;
684 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
686 MonoException *exc = mono_get_exception_argument ("string", error->message);
687 g_error_free (error);
688 mono_raise_exception (exc);
691 memcpy (native_arr, as, MIN (strlen (as), elnum));
694 g_assert_not_reached ();
699 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
701 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
704 static MonoStringBuilder *
705 mono_string_builder_new (int starting_string_length)
707 static MonoClass *string_builder_class;
708 static MonoMethod *sb_ctor;
709 static void *args [1];
710 int initial_len = starting_string_length;
716 MonoMethodDesc *desc;
719 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
720 g_assert (string_builder_class);
721 desc = mono_method_desc_new (":.ctor(int)", FALSE);
722 m = mono_method_desc_search_in_class (desc, string_builder_class);
724 mono_method_desc_free (desc);
725 mono_memory_barrier ();
729 // We make a new array in the _to_builder function, so this
730 // array will always be garbage collected.
731 args [0] = &initial_len;
733 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
737 mono_runtime_invoke (sb_ctor, sb, args, &exc);
740 g_assert (sb->chunkChars->max_length >= initial_len);
746 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
748 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
749 gunichar2 *charSrc = (gunichar2 *)text;
750 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
752 sb->chunkLength = string_len;
758 mono_string_utf16_to_builder2 (gunichar2 *text)
764 for (len = 0; text [len] != 0; ++len);
766 MonoStringBuilder *sb = mono_string_builder_new (len);
767 mono_string_utf16_to_builder (sb, text);
773 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
778 int len = strlen (text);
779 if (len > mono_string_builder_capacity (sb))
780 len = mono_string_builder_capacity (sb);
782 GError *error = NULL;
784 gunichar2* ut = g_utf8_to_utf16 (text, len, NULL, &copied, &error);
787 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
788 mono_string_utf16_to_builder_copy (sb, ut, copied);
790 g_error_free (error);
796 mono_string_utf8_to_builder2 (char *text)
801 int len = strlen (text);
802 MonoStringBuilder *sb = mono_string_builder_new (len);
803 mono_string_utf8_to_builder (sb, text);
810 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
816 for (len = 0; text [len] != 0; ++len);
818 if (len > mono_string_builder_capacity (sb))
819 len = mono_string_builder_capacity (sb);
821 mono_string_utf16_to_builder_copy (sb, text, len);
825 * mono_string_builder_to_utf8:
826 * @sb: the string builder
828 * Converts to utf8 the contents of the MonoStringBuilder.
830 * Returns: a utf8 string with the contents of the StringBuilder.
832 * The return value must be released with g_free.
835 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
838 GError *gerror = NULL;
844 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
846 guint str_len = mono_string_builder_string_length (sb);
848 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, NULL, &gerror);
851 g_error_free (gerror);
853 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
856 guint len = mono_string_builder_capacity (sb) + 1;
857 gchar *res = (gchar *)mono_marshal_alloc (len * sizeof (gchar), &error);
858 if (!mono_error_ok (&error)) {
861 mono_error_raise_exception (&error);
864 g_assert (str_len < len);
865 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)
892 g_assert (sb->chunkChars);
894 guint len = mono_string_builder_capacity (sb);
899 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
900 mono_error_raise_exception (&error);
907 MonoStringBuilder* chunk = sb;
909 if (chunk->chunkLength > 0) {
910 // Check that we will not overrun our boundaries.
911 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
913 if (chunk->chunkLength <= len) {
914 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
916 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
919 len -= chunk->chunkLength;
921 chunk = chunk->chunkPrevious;
922 } while (chunk != NULL);
928 mono_string_to_lpstr (MonoString *s)
933 GError *error = NULL;
939 as = CoTaskMemAlloc (1);
944 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
946 MonoException *exc = mono_get_exception_argument ("string", error->message);
947 g_error_free (error);
948 mono_raise_exception(exc);
951 as = CoTaskMemAlloc (len + 1);
952 memcpy (as, tmp, len + 1);
957 return mono_string_to_utf8 (s);
962 mono_string_to_ansibstr (MonoString *string_obj)
964 g_error ("UnmanagedMarshal.BStr is not implemented.");
969 * mono_string_to_byvalstr:
970 * @dst: Where to store the null-terminated utf8 decoded string.
971 * @src: the MonoString to copy.
972 * @size: the maximum number of bytes to copy.
974 * Copies the MonoString pointed to by @src as a utf8 string
975 * into @dst, it copies at most @size bytes into the destination.
978 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
983 g_assert (dst != NULL);
986 memset (dst, 0, size);
990 s = mono_string_to_utf8 (src);
991 len = MIN (size, strlen (s));
994 memcpy (dst, s, len);
999 * mono_string_to_byvalwstr:
1000 * @dst: Where to store the null-terminated utf16 decoded string.
1001 * @src: the MonoString to copy.
1002 * @size: the maximum number of bytes to copy.
1004 * Copies the MonoString pointed to by @src as a utf16 string into
1005 * @dst, it copies at most @size bytes into the destination (including
1006 * a terminating 16-bit zero terminator).
1009 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1013 g_assert (dst != NULL);
1014 g_assert (size > 1);
1017 memset (dst, 0, size * 2);
1021 len = MIN (size, (mono_string_length (src)));
1022 memcpy (dst, mono_string_chars (src), size * 2);
1023 if (size <= mono_string_length (src))
1025 *((gunichar2 *) dst + len) = 0;
1029 mono_string_new_len_wrapper (const char *text, guint length)
1031 return mono_string_new_len (mono_domain_get (), text, length);
1037 * mono_mb_emit_exception_marshal_directive:
1039 * This function assumes ownership of MSG, which should be malloc-ed.
1042 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1047 s = mono_image_strdup (mb->method->klass->image, msg);
1052 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1055 #endif /* !DISABLE_JIT */
1058 mono_type_to_ldind (MonoType *type)
1064 switch (type->type) {
1066 return CEE_LDIND_I1;
1068 case MONO_TYPE_BOOLEAN:
1069 return CEE_LDIND_U1;
1071 return CEE_LDIND_I2;
1073 case MONO_TYPE_CHAR:
1074 return CEE_LDIND_U2;
1076 return CEE_LDIND_I4;
1078 return CEE_LDIND_U4;
1082 case MONO_TYPE_FNPTR:
1084 case MONO_TYPE_CLASS:
1085 case MONO_TYPE_STRING:
1086 case MONO_TYPE_OBJECT:
1087 case MONO_TYPE_SZARRAY:
1088 case MONO_TYPE_ARRAY:
1089 return CEE_LDIND_REF;
1092 return CEE_LDIND_I8;
1094 return CEE_LDIND_R4;
1096 return CEE_LDIND_R8;
1097 case MONO_TYPE_VALUETYPE:
1098 if (type->data.klass->enumtype) {
1099 type = mono_class_enum_basetype (type->data.klass);
1103 case MONO_TYPE_TYPEDBYREF:
1105 case MONO_TYPE_GENERICINST:
1106 type = &type->data.generic_class->container_class->byval_arg;
1109 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1115 mono_type_to_stind (MonoType *type)
1121 switch (type->type) {
1124 case MONO_TYPE_BOOLEAN:
1125 return CEE_STIND_I1;
1128 case MONO_TYPE_CHAR:
1129 return CEE_STIND_I2;
1132 return CEE_STIND_I4;
1136 case MONO_TYPE_FNPTR:
1138 case MONO_TYPE_CLASS:
1139 case MONO_TYPE_STRING:
1140 case MONO_TYPE_OBJECT:
1141 case MONO_TYPE_SZARRAY:
1142 case MONO_TYPE_ARRAY:
1143 return CEE_STIND_REF;
1146 return CEE_STIND_I8;
1148 return CEE_STIND_R4;
1150 return CEE_STIND_R8;
1151 case MONO_TYPE_VALUETYPE:
1152 if (type->data.klass->enumtype) {
1153 type = mono_class_enum_basetype (type->data.klass);
1157 case MONO_TYPE_TYPEDBYREF:
1159 case MONO_TYPE_GENERICINST:
1160 type = &type->data.generic_class->container_class->byval_arg;
1163 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1171 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1174 case MONO_MARSHAL_CONV_BOOL_I4:
1175 mono_mb_emit_ldloc (mb, 1);
1176 mono_mb_emit_ldloc (mb, 0);
1177 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1178 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1179 mono_mb_emit_byte (mb, 3);
1180 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1181 mono_mb_emit_byte (mb, CEE_BR_S);
1182 mono_mb_emit_byte (mb, 1);
1183 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1184 mono_mb_emit_byte (mb, CEE_STIND_I1);
1186 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1187 mono_mb_emit_ldloc (mb, 1);
1188 mono_mb_emit_ldloc (mb, 0);
1189 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1190 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1191 mono_mb_emit_byte (mb, 3);
1192 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1193 mono_mb_emit_byte (mb, CEE_BR_S);
1194 mono_mb_emit_byte (mb, 1);
1195 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1196 mono_mb_emit_byte (mb, CEE_STIND_I1);
1198 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1199 MonoClass *eklass = NULL;
1202 if (type->type == MONO_TYPE_SZARRAY) {
1203 eklass = type->data.klass;
1205 g_assert_not_reached ();
1208 esize = mono_class_native_size (eklass, NULL);
1210 /* create a new array */
1211 mono_mb_emit_ldloc (mb, 1);
1212 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1213 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1214 mono_mb_emit_byte (mb, CEE_STIND_I);
1216 if (eklass->blittable) {
1217 /* copy the elements */
1218 mono_mb_emit_ldloc (mb, 1);
1219 mono_mb_emit_byte (mb, CEE_LDIND_I);
1220 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1221 mono_mb_emit_byte (mb, CEE_ADD);
1222 mono_mb_emit_ldloc (mb, 0);
1223 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1224 mono_mb_emit_byte (mb, CEE_PREFIX1);
1225 mono_mb_emit_byte (mb, CEE_CPBLK);
1228 int array_var, src_var, dst_var, index_var;
1229 guint32 label2, label3;
1231 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1232 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1233 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1236 mono_mb_emit_ldloc (mb, 1);
1237 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1238 mono_mb_emit_stloc (mb, array_var);
1240 /* save the old src pointer */
1241 mono_mb_emit_ldloc (mb, 0);
1242 mono_mb_emit_stloc (mb, src_var);
1243 /* save the old dst pointer */
1244 mono_mb_emit_ldloc (mb, 1);
1245 mono_mb_emit_stloc (mb, dst_var);
1247 /* Emit marshalling loop */
1248 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1249 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1250 mono_mb_emit_stloc (mb, index_var);
1253 label2 = mono_mb_get_label (mb);
1254 mono_mb_emit_ldloc (mb, index_var);
1255 mono_mb_emit_ldloc (mb, array_var);
1256 mono_mb_emit_byte (mb, CEE_LDLEN);
1257 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1259 /* src is already set */
1262 mono_mb_emit_ldloc (mb, array_var);
1263 mono_mb_emit_ldloc (mb, index_var);
1264 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1265 mono_mb_emit_stloc (mb, 1);
1267 /* Do the conversion */
1268 emit_struct_conv (mb, eklass, TRUE);
1271 mono_mb_emit_add_to_local (mb, index_var, 1);
1273 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1275 mono_mb_patch_branch (mb, label3);
1277 /* restore the old src pointer */
1278 mono_mb_emit_ldloc (mb, src_var);
1279 mono_mb_emit_stloc (mb, 0);
1280 /* restore the old dst pointer */
1281 mono_mb_emit_ldloc (mb, dst_var);
1282 mono_mb_emit_stloc (mb, 1);
1286 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1287 MonoClass *eclass = mono_defaults.char_class;
1289 /* create a new array */
1290 mono_mb_emit_ldloc (mb, 1);
1291 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1292 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1293 mono_mb_emit_byte (mb, CEE_STIND_REF);
1295 mono_mb_emit_ldloc (mb, 1);
1296 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1297 mono_mb_emit_ldloc (mb, 0);
1298 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1299 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1302 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1303 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1304 mono_mb_emit_ldloc (mb, 1);
1305 mono_mb_emit_ldloc (mb, 0);
1306 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1307 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1309 mono_mb_emit_ldloc (mb, 1);
1310 mono_mb_emit_ldloc (mb, 0);
1311 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1313 mono_mb_emit_byte (mb, CEE_STIND_REF);
1315 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1316 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1317 mono_mb_emit_ldloc (mb, 1);
1318 mono_mb_emit_ldloc (mb, 0);
1319 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1320 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1322 mono_mb_emit_ldloc (mb, 1);
1323 mono_mb_emit_ldloc (mb, 0);
1324 mono_mb_emit_icall (mb, mono_string_from_utf16);
1326 mono_mb_emit_byte (mb, CEE_STIND_REF);
1328 case MONO_MARSHAL_CONV_STR_LPTSTR:
1329 mono_mb_emit_ldloc (mb, 1);
1330 mono_mb_emit_ldloc (mb, 0);
1331 mono_mb_emit_byte (mb, CEE_LDIND_I);
1333 mono_mb_emit_icall (mb, mono_string_from_utf16);
1335 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1337 mono_mb_emit_byte (mb, CEE_STIND_REF);
1339 case MONO_MARSHAL_CONV_STR_LPSTR:
1340 mono_mb_emit_ldloc (mb, 1);
1341 mono_mb_emit_ldloc (mb, 0);
1342 mono_mb_emit_byte (mb, CEE_LDIND_I);
1343 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1344 mono_mb_emit_byte (mb, CEE_STIND_REF);
1346 case MONO_MARSHAL_CONV_STR_LPWSTR:
1347 mono_mb_emit_ldloc (mb, 1);
1348 mono_mb_emit_ldloc (mb, 0);
1349 mono_mb_emit_byte (mb, CEE_LDIND_I);
1350 mono_mb_emit_icall (mb, mono_string_from_utf16);
1351 mono_mb_emit_byte (mb, CEE_STIND_REF);
1353 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1354 MonoClass *klass = mono_class_from_mono_type (type);
1355 int src_var, dst_var;
1357 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1358 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1360 /* *dst = new object */
1361 mono_mb_emit_ldloc (mb, 1);
1362 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1363 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1364 mono_mb_emit_byte (mb, CEE_STIND_REF);
1366 /* save the old src pointer */
1367 mono_mb_emit_ldloc (mb, 0);
1368 mono_mb_emit_stloc (mb, src_var);
1369 /* save the old dst pointer */
1370 mono_mb_emit_ldloc (mb, 1);
1371 mono_mb_emit_stloc (mb, dst_var);
1373 /* dst = pointer to newly created object data */
1374 mono_mb_emit_ldloc (mb, 1);
1375 mono_mb_emit_byte (mb, CEE_LDIND_I);
1376 mono_mb_emit_icon (mb, sizeof (MonoObject));
1377 mono_mb_emit_byte (mb, CEE_ADD);
1378 mono_mb_emit_stloc (mb, 1);
1380 emit_struct_conv (mb, klass, TRUE);
1382 /* restore the old src pointer */
1383 mono_mb_emit_ldloc (mb, src_var);
1384 mono_mb_emit_stloc (mb, 0);
1385 /* restore the old dst pointer */
1386 mono_mb_emit_ldloc (mb, dst_var);
1387 mono_mb_emit_stloc (mb, 1);
1390 case MONO_MARSHAL_CONV_DEL_FTN: {
1391 MonoClass *klass = mono_class_from_mono_type (type);
1393 mono_mb_emit_ldloc (mb, 1);
1394 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1395 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1396 mono_mb_emit_ldloc (mb, 0);
1397 mono_mb_emit_byte (mb, CEE_LDIND_I);
1398 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1399 mono_mb_emit_byte (mb, CEE_STIND_REF);
1402 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1403 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1407 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1408 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1409 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1410 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1412 #endif /* DISABLE_COM */
1414 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1416 * Passing SafeHandles as ref does not allow the unmanaged code
1417 * to change the SafeHandle value. If the value is changed,
1418 * we should issue a diagnostic exception (NotSupportedException)
1419 * that informs the user that changes to handles in unmanaged code
1422 * Since we currently have no access to the original
1423 * SafeHandle that was used during the marshalling,
1424 * for now we just ignore this, and ignore/discard any
1425 * changes that might have happened to the handle.
1430 case MONO_MARSHAL_CONV_HANDLEREF: {
1432 * Passing HandleRefs in a struct that is ref()ed does not
1433 * copy the values back to the HandleRef
1438 case MONO_MARSHAL_CONV_STR_BSTR:
1439 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1440 case MONO_MARSHAL_CONV_STR_TBSTR:
1441 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1443 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1445 mono_mb_emit_exception_marshal_directive (mb, msg);
1452 conv_to_icall (MonoMarshalConv conv)
1455 case MONO_MARSHAL_CONV_STR_LPWSTR:
1456 return mono_marshal_string_to_utf16;
1457 case MONO_MARSHAL_CONV_LPWSTR_STR:
1458 return mono_string_from_utf16;
1459 case MONO_MARSHAL_CONV_LPTSTR_STR:
1460 return mono_string_new_wrapper;
1461 case MONO_MARSHAL_CONV_LPSTR_STR:
1462 return mono_string_new_wrapper;
1463 case MONO_MARSHAL_CONV_STR_LPTSTR:
1465 return mono_marshal_string_to_utf16;
1467 return mono_string_to_lpstr;
1469 case MONO_MARSHAL_CONV_STR_LPSTR:
1470 return mono_string_to_lpstr;
1471 case MONO_MARSHAL_CONV_STR_BSTR:
1472 return mono_string_to_bstr;
1473 case MONO_MARSHAL_CONV_BSTR_STR:
1474 return mono_string_from_bstr;
1475 case MONO_MARSHAL_CONV_STR_TBSTR:
1476 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1477 return mono_string_to_ansibstr;
1478 case MONO_MARSHAL_CONV_SB_LPSTR:
1479 return mono_string_builder_to_utf8;
1480 case MONO_MARSHAL_CONV_SB_LPTSTR:
1482 return mono_string_builder_to_utf16;
1484 return mono_string_builder_to_utf8;
1486 case MONO_MARSHAL_CONV_SB_LPWSTR:
1487 return mono_string_builder_to_utf16;
1488 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1489 return mono_array_to_savearray;
1490 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1491 return mono_array_to_lparray;
1492 case MONO_MARSHAL_FREE_LPARRAY:
1493 return mono_free_lparray;
1494 case MONO_MARSHAL_CONV_DEL_FTN:
1495 return mono_delegate_to_ftnptr;
1496 case MONO_MARSHAL_CONV_FTN_DEL:
1497 return mono_ftnptr_to_delegate;
1498 case MONO_MARSHAL_CONV_LPSTR_SB:
1499 return mono_string_utf8_to_builder;
1500 case MONO_MARSHAL_CONV_LPTSTR_SB:
1502 return mono_string_utf16_to_builder;
1504 return mono_string_utf8_to_builder;
1506 case MONO_MARSHAL_CONV_LPWSTR_SB:
1507 return mono_string_utf16_to_builder;
1508 case MONO_MARSHAL_FREE_ARRAY:
1509 return mono_marshal_free_array;
1510 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1511 return mono_string_to_byvalstr;
1512 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1513 return mono_string_to_byvalwstr;
1515 g_assert_not_reached ();
1522 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1527 case MONO_MARSHAL_CONV_BOOL_I4:
1528 mono_mb_emit_ldloc (mb, 1);
1529 mono_mb_emit_ldloc (mb, 0);
1530 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1531 mono_mb_emit_byte (mb, CEE_STIND_I4);
1533 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1534 mono_mb_emit_ldloc (mb, 1);
1535 mono_mb_emit_ldloc (mb, 0);
1536 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1537 mono_mb_emit_byte (mb, CEE_NEG);
1538 mono_mb_emit_byte (mb, CEE_STIND_I2);
1540 case MONO_MARSHAL_CONV_STR_LPWSTR:
1541 case MONO_MARSHAL_CONV_STR_LPSTR:
1542 case MONO_MARSHAL_CONV_STR_LPTSTR:
1543 case MONO_MARSHAL_CONV_STR_BSTR:
1544 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1545 case MONO_MARSHAL_CONV_STR_TBSTR: {
1548 /* free space if free == true */
1549 mono_mb_emit_ldloc (mb, 2);
1550 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1551 mono_mb_emit_ldloc (mb, 1);
1552 mono_mb_emit_byte (mb, CEE_LDIND_I);
1553 mono_mb_emit_icall (mb, g_free);
1554 mono_mb_patch_short_branch (mb, pos);
1556 mono_mb_emit_ldloc (mb, 1);
1557 mono_mb_emit_ldloc (mb, 0);
1558 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1559 mono_mb_emit_icall (mb, conv_to_icall (conv));
1560 mono_mb_emit_byte (mb, CEE_STIND_I);
1563 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1564 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1565 case MONO_MARSHAL_CONV_DEL_FTN:
1566 mono_mb_emit_ldloc (mb, 1);
1567 mono_mb_emit_ldloc (mb, 0);
1568 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1569 mono_mb_emit_icall (mb, conv_to_icall (conv));
1570 mono_mb_emit_byte (mb, CEE_STIND_I);
1572 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1573 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1576 mono_mb_emit_ldloc (mb, 1); /* dst */
1577 mono_mb_emit_ldloc (mb, 0);
1578 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1579 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1580 mono_mb_emit_icall (mb, conv_to_icall (conv));
1583 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1584 MonoClass *eklass = NULL;
1587 if (type->type == MONO_TYPE_SZARRAY) {
1588 eklass = type->data.klass;
1590 g_assert_not_reached ();
1593 if (eklass->valuetype)
1594 esize = mono_class_native_size (eklass, NULL);
1596 esize = sizeof (gpointer);
1598 mono_mb_emit_ldloc (mb, 0);
1599 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1600 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1602 if (eklass->blittable) {
1603 mono_mb_emit_ldloc (mb, 1);
1604 mono_mb_emit_ldloc (mb, 0);
1605 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1606 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1607 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1608 mono_mb_emit_byte (mb, CEE_PREFIX1);
1609 mono_mb_emit_byte (mb, CEE_CPBLK);
1611 int array_var, src_var, dst_var, index_var;
1612 guint32 label2, label3;
1614 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1615 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1616 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1619 mono_mb_emit_ldloc (mb, 0);
1620 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1621 mono_mb_emit_stloc (mb, array_var);
1623 /* save the old src pointer */
1624 mono_mb_emit_ldloc (mb, 0);
1625 mono_mb_emit_stloc (mb, src_var);
1626 /* save the old dst pointer */
1627 mono_mb_emit_ldloc (mb, 1);
1628 mono_mb_emit_stloc (mb, dst_var);
1630 /* Emit marshalling loop */
1631 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1632 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1633 mono_mb_emit_stloc (mb, index_var);
1636 label2 = mono_mb_get_label (mb);
1637 mono_mb_emit_ldloc (mb, index_var);
1638 mono_mb_emit_ldloc (mb, array_var);
1639 mono_mb_emit_byte (mb, CEE_LDLEN);
1640 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1643 mono_mb_emit_ldloc (mb, array_var);
1644 mono_mb_emit_ldloc (mb, index_var);
1645 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1646 mono_mb_emit_stloc (mb, 0);
1648 /* dst is already set */
1650 /* Do the conversion */
1651 emit_struct_conv (mb, eklass, FALSE);
1654 mono_mb_emit_add_to_local (mb, index_var, 1);
1656 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1658 mono_mb_patch_branch (mb, label3);
1660 /* restore the old src pointer */
1661 mono_mb_emit_ldloc (mb, src_var);
1662 mono_mb_emit_stloc (mb, 0);
1663 /* restore the old dst pointer */
1664 mono_mb_emit_ldloc (mb, dst_var);
1665 mono_mb_emit_stloc (mb, 1);
1668 mono_mb_patch_branch (mb, pos);
1671 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1672 mono_mb_emit_ldloc (mb, 0);
1673 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1674 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1676 mono_mb_emit_ldloc (mb, 1);
1677 mono_mb_emit_ldloc (mb, 0);
1678 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1679 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1680 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1681 mono_mb_patch_short_branch (mb, pos);
1684 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1685 int src_var, dst_var;
1687 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1688 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1690 mono_mb_emit_ldloc (mb, 0);
1691 mono_mb_emit_byte (mb, CEE_LDIND_I);
1692 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1694 /* save the old src pointer */
1695 mono_mb_emit_ldloc (mb, 0);
1696 mono_mb_emit_stloc (mb, src_var);
1697 /* save the old dst pointer */
1698 mono_mb_emit_ldloc (mb, 1);
1699 mono_mb_emit_stloc (mb, dst_var);
1701 /* src = pointer to object data */
1702 mono_mb_emit_ldloc (mb, 0);
1703 mono_mb_emit_byte (mb, CEE_LDIND_I);
1704 mono_mb_emit_icon (mb, sizeof (MonoObject));
1705 mono_mb_emit_byte (mb, CEE_ADD);
1706 mono_mb_emit_stloc (mb, 0);
1708 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1710 /* restore the old src pointer */
1711 mono_mb_emit_ldloc (mb, src_var);
1712 mono_mb_emit_stloc (mb, 0);
1713 /* restore the old dst pointer */
1714 mono_mb_emit_ldloc (mb, dst_var);
1715 mono_mb_emit_stloc (mb, 1);
1717 mono_mb_patch_branch (mb, pos);
1722 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1723 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1724 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1725 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1727 #endif /* DISABLE_COM */
1729 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1732 mono_mb_emit_ldloc (mb, 0);
1733 mono_mb_emit_byte (mb, CEE_LDIND_I);
1734 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1735 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1736 mono_mb_patch_branch (mb, pos);
1738 /* Pull the handle field from SafeHandle */
1739 mono_mb_emit_ldloc (mb, 1);
1740 mono_mb_emit_ldloc (mb, 0);
1741 mono_mb_emit_byte (mb, CEE_LDIND_I);
1742 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1743 mono_mb_emit_byte (mb, CEE_LDIND_I);
1744 mono_mb_emit_byte (mb, CEE_STIND_I);
1748 case MONO_MARSHAL_CONV_HANDLEREF: {
1749 mono_mb_emit_ldloc (mb, 1);
1750 mono_mb_emit_ldloc (mb, 0);
1751 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1752 mono_mb_emit_byte (mb, CEE_ADD);
1753 mono_mb_emit_byte (mb, CEE_LDIND_I);
1754 mono_mb_emit_byte (mb, CEE_STIND_I);
1759 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1760 MonoException *exc = mono_get_exception_not_implemented (msg);
1761 g_warning ("%s", msg);
1763 mono_raise_exception (exc);
1769 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1770 MonoMarshalNative string_encoding)
1772 MonoMarshalType *info;
1776 emit_struct_conv(mb, klass->parent, to_object);
1778 info = mono_marshal_load_type_info (klass);
1780 if (info->native_size == 0)
1783 if (klass->blittable) {
1784 int msize = mono_class_value_size (klass, NULL);
1785 g_assert (msize == info->native_size);
1786 mono_mb_emit_ldloc (mb, 1);
1787 mono_mb_emit_ldloc (mb, 0);
1788 mono_mb_emit_icon (mb, msize);
1789 mono_mb_emit_byte (mb, CEE_PREFIX1);
1790 mono_mb_emit_byte (mb, CEE_CPBLK);
1792 mono_mb_emit_add_to_local (mb, 0, msize);
1793 mono_mb_emit_add_to_local (mb, 1, msize);
1797 if (klass != mono_defaults.safehandle_class) {
1798 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1799 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1800 mono_type_full_name (&klass->byval_arg));
1801 mono_mb_emit_exception_marshal_directive (mb, msg);
1806 for (i = 0; i < info->num_fields; i++) {
1807 MonoMarshalNative ntype;
1808 MonoMarshalConv conv;
1809 MonoType *ftype = info->fields [i].field->type;
1812 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1814 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1817 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1820 msize = klass->instance_size - info->fields [i].field->offset;
1821 usize = info->native_size - info->fields [i].offset;
1823 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1824 usize = info->fields [i + 1].offset - info->fields [i].offset;
1827 if (klass != mono_defaults.safehandle_class){
1829 * FIXME: Should really check for usize==0 and msize>0, but we apply
1830 * the layout to the managed structure as well.
1833 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1834 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1835 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1836 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1837 "reference field at the same offset as another field.",
1838 mono_type_full_name (&klass->byval_arg));
1843 case MONO_MARSHAL_CONV_NONE: {
1846 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1847 ftype->type == MONO_TYPE_U) {
1848 mono_mb_emit_ldloc (mb, 1);
1849 mono_mb_emit_ldloc (mb, 0);
1850 mono_mb_emit_byte (mb, CEE_LDIND_I);
1851 mono_mb_emit_byte (mb, CEE_STIND_I);
1862 case MONO_TYPE_BOOLEAN:
1865 case MONO_TYPE_CHAR:
1871 mono_mb_emit_ldloc (mb, 1);
1872 mono_mb_emit_ldloc (mb, 0);
1873 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
1875 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1876 mono_mb_emit_byte (mb, CEE_STIND_I2);
1878 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1879 mono_mb_emit_byte (mb, CEE_STIND_I1);
1882 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1883 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1886 case MONO_TYPE_VALUETYPE: {
1887 int src_var, dst_var;
1889 if (ftype->data.klass->enumtype) {
1890 ftype = mono_class_enum_basetype (ftype->data.klass);
1894 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1895 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1897 /* save the old src pointer */
1898 mono_mb_emit_ldloc (mb, 0);
1899 mono_mb_emit_stloc (mb, src_var);
1900 /* save the old dst pointer */
1901 mono_mb_emit_ldloc (mb, 1);
1902 mono_mb_emit_stloc (mb, dst_var);
1904 emit_struct_conv (mb, ftype->data.klass, to_object);
1906 /* restore the old src pointer */
1907 mono_mb_emit_ldloc (mb, src_var);
1908 mono_mb_emit_stloc (mb, 0);
1909 /* restore the old dst pointer */
1910 mono_mb_emit_ldloc (mb, dst_var);
1911 mono_mb_emit_stloc (mb, 1);
1914 case MONO_TYPE_OBJECT: {
1917 static MonoMethod *variant_clear = NULL;
1918 static MonoMethod *get_object_for_native_variant = NULL;
1921 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
1922 if (!get_object_for_native_variant)
1923 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
1924 mono_mb_emit_ldloc (mb, 1);
1925 mono_mb_emit_ldloc (mb, 0);
1926 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
1927 mono_mb_emit_byte (mb, CEE_STIND_REF);
1929 mono_mb_emit_ldloc (mb, 0);
1930 mono_mb_emit_managed_call (mb, variant_clear, NULL);
1933 static MonoMethod *get_native_variant_for_object = NULL;
1935 if (!get_native_variant_for_object)
1936 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
1938 mono_mb_emit_ldloc (mb, 0);
1939 mono_mb_emit_byte(mb, CEE_LDIND_REF);
1940 mono_mb_emit_ldloc (mb, 1);
1941 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
1944 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
1945 mono_mb_emit_exception_marshal_directive (mb, msg);
1951 g_warning ("marshaling type %02x not implemented", ftype->type);
1952 g_assert_not_reached ();
1957 int src_var, dst_var;
1959 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1960 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1962 /* save the old src pointer */
1963 mono_mb_emit_ldloc (mb, 0);
1964 mono_mb_emit_stloc (mb, src_var);
1965 /* save the old dst pointer */
1966 mono_mb_emit_ldloc (mb, 1);
1967 mono_mb_emit_stloc (mb, dst_var);
1970 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
1972 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
1974 /* restore the old src pointer */
1975 mono_mb_emit_ldloc (mb, src_var);
1976 mono_mb_emit_stloc (mb, 0);
1977 /* restore the old dst pointer */
1978 mono_mb_emit_ldloc (mb, dst_var);
1979 mono_mb_emit_stloc (mb, 1);
1984 mono_mb_emit_add_to_local (mb, 0, usize);
1985 mono_mb_emit_add_to_local (mb, 1, msize);
1987 mono_mb_emit_add_to_local (mb, 0, msize);
1988 mono_mb_emit_add_to_local (mb, 1, usize);
1994 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
1996 emit_struct_conv_full (mb, klass, to_object, (MonoMarshalNative)-1);
2000 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2002 /* Call DestroyStructure */
2003 /* FIXME: Only do this if needed */
2004 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2005 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2006 mono_mb_emit_ldloc (mb, struct_var);
2007 mono_mb_emit_icall (mb, mono_struct_delete_old);
2011 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2013 int pos_noabort, pos_noex;
2015 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2016 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2017 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2018 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2020 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2021 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2023 mono_mb_emit_icall (mb, checkpoint_func);
2024 /* Throw the exception returned by the checkpoint function, if any */
2025 mono_mb_emit_byte (mb, CEE_DUP);
2026 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2027 mono_mb_emit_byte (mb, CEE_THROW);
2028 mono_mb_patch_branch (mb, pos_noex);
2029 mono_mb_emit_byte (mb, CEE_POP);
2031 mono_mb_patch_branch (mb, pos_noabort);
2035 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2037 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2040 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2044 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2046 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2050 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2052 emit_thread_interrupt_checkpoint (mb);
2056 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2058 emit_thread_force_interrupt_checkpoint (mb);
2061 #endif /* DISABLE_JIT */
2063 static MonoAsyncResult *
2064 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2066 MonoMulticastDelegate *mcast_delegate;
2070 g_assert (delegate);
2071 mcast_delegate = (MonoMulticastDelegate *) delegate;
2072 if (mcast_delegate->delegates != NULL)
2073 mono_raise_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2075 #ifndef DISABLE_REMOTING
2076 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2078 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2079 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2081 /* If the target is a proxy, make a direct call. Is proxy's work
2082 // to make the call asynchronous.
2084 MonoMethodMessage *msg;
2085 MonoDelegate *async_callback;
2087 MonoAsyncResult *ares;
2089 MonoArray *out_args;
2090 method = delegate->method;
2092 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2093 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2094 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2095 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2096 MONO_OBJECT_SETREF (msg, async_result, ares);
2097 msg->call_type = CallType_BeginInvoke;
2100 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2102 mono_raise_exception ((MonoException *) exc);
2108 klass = delegate->object.vtable->klass;
2110 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2112 method = mono_get_delegate_invoke (klass);
2115 return mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params);
2121 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2123 int i, params_var, tmp_var;
2125 /* allocate local (pointer) *params[] */
2126 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2127 /* allocate local (pointer) tmp */
2128 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2130 /* alloate space on stack to store an array of pointers to the arguments */
2131 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2132 mono_mb_emit_byte (mb, CEE_PREFIX1);
2133 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2134 mono_mb_emit_stloc (mb, params_var);
2137 mono_mb_emit_ldloc (mb, params_var);
2138 mono_mb_emit_stloc (mb, tmp_var);
2140 if (save_this && sig->hasthis) {
2141 mono_mb_emit_ldloc (mb, tmp_var);
2142 mono_mb_emit_ldarg_addr (mb, 0);
2143 mono_mb_emit_byte (mb, CEE_STIND_I);
2144 /* tmp = tmp + sizeof (gpointer) */
2145 if (sig->param_count)
2146 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2150 for (i = 0; i < sig->param_count; i++) {
2151 mono_mb_emit_ldloc (mb, tmp_var);
2152 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2153 mono_mb_emit_byte (mb, CEE_STIND_I);
2154 /* tmp = tmp + sizeof (gpointer) */
2155 if (i < (sig->param_count - 1))
2156 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2162 #endif /* DISABLE_JIT */
2165 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2169 GString *res = g_string_new ("");
2172 g_string_append (res, prefix);
2173 g_string_append_c (res, '_');
2176 mono_type_get_desc (res, sig->ret, FALSE);
2179 g_string_append (res, "__this__");
2181 for (i = 0; i < sig->param_count; ++i) {
2182 g_string_append_c (res, '_');
2183 mono_type_get_desc (res, sig->params [i], FALSE);
2186 g_string_free (res, FALSE);
2191 * mono_marshal_get_string_encoding:
2193 * Return the string encoding which should be used for a given parameter.
2195 static MonoMarshalNative
2196 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2198 /* First try the parameter marshal info */
2200 if (spec->native == MONO_NATIVE_LPARRAY) {
2201 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2202 return spec->data.array_data.elem_type;
2205 return spec->native;
2209 return MONO_NATIVE_LPSTR;
2211 /* Then try the method level marshal info */
2212 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2213 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2214 return MONO_NATIVE_LPSTR;
2215 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2216 return MONO_NATIVE_LPWSTR;
2217 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2219 return MONO_NATIVE_LPWSTR;
2221 return MONO_NATIVE_LPSTR;
2224 return MONO_NATIVE_LPSTR;
2228 static MonoMarshalConv
2229 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2231 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2234 case MONO_NATIVE_LPWSTR:
2235 return MONO_MARSHAL_CONV_STR_LPWSTR;
2236 case MONO_NATIVE_LPSTR:
2237 case MONO_NATIVE_VBBYREFSTR:
2238 return MONO_MARSHAL_CONV_STR_LPSTR;
2239 case MONO_NATIVE_LPTSTR:
2240 return MONO_MARSHAL_CONV_STR_LPTSTR;
2241 case MONO_NATIVE_BSTR:
2242 return MONO_MARSHAL_CONV_STR_BSTR;
2244 return (MonoMarshalConv)-1;
2248 static MonoMarshalConv
2249 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2251 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2254 case MONO_NATIVE_LPWSTR:
2255 return MONO_MARSHAL_CONV_SB_LPWSTR;
2257 case MONO_NATIVE_LPSTR:
2258 return MONO_MARSHAL_CONV_SB_LPSTR;
2260 case MONO_NATIVE_LPTSTR:
2261 return MONO_MARSHAL_CONV_SB_LPTSTR;
2264 return (MonoMarshalConv)-1;
2268 static MonoMarshalConv
2269 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2271 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2276 case MONO_NATIVE_LPWSTR:
2278 return MONO_MARSHAL_CONV_LPWSTR_STR;
2279 case MONO_NATIVE_LPSTR:
2280 case MONO_NATIVE_VBBYREFSTR:
2281 return MONO_MARSHAL_CONV_LPSTR_STR;
2282 case MONO_NATIVE_LPTSTR:
2283 return MONO_MARSHAL_CONV_LPTSTR_STR;
2284 case MONO_NATIVE_BSTR:
2285 return MONO_MARSHAL_CONV_BSTR_STR;
2287 return (MonoMarshalConv)-1;
2291 static MonoMarshalConv
2292 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2294 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2299 case MONO_NATIVE_LPWSTR:
2301 * mono_string_builder_to_utf16 does not allocate a
2302 * new buffer, so no need to free it.
2305 return MONO_MARSHAL_CONV_LPWSTR_SB;
2306 case MONO_NATIVE_LPSTR:
2307 return MONO_MARSHAL_CONV_LPSTR_SB;
2309 case MONO_NATIVE_LPTSTR:
2310 return MONO_MARSHAL_CONV_LPTSTR_SB;
2313 return (MonoMarshalConv)-1;
2318 * Return whenever a field of a native structure or an array member needs to
2322 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2324 MonoMarshalNative encoding;
2327 case MONO_TYPE_VALUETYPE:
2328 /* FIXME: Optimize this */
2330 case MONO_TYPE_OBJECT:
2331 case MONO_TYPE_CLASS:
2332 if (t->data.klass == mono_defaults.stringbuilder_class) {
2334 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2338 case MONO_TYPE_STRING:
2339 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2340 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2347 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2350 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2353 mono_marshal_lock ();
2356 g_hash_table_new (hash_func, equal_func);
2357 mono_memory_barrier ();
2360 mono_marshal_unlock ();
2366 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2368 return get_cache (var, hash_func, equal_func);
2372 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2376 mono_marshal_lock ();
2377 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2378 mono_marshal_unlock ();
2385 * Create a MonoMethod from MB, set INFO as wrapper info.
2388 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2389 int max_stack, WrapperInfo *info)
2393 res = mono_mb_create_method (mb, sig, max_stack);
2395 mono_marshal_set_wrapper_info (res, info);
2399 /* Create the method from the builder and place it in the cache */
2401 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2402 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2403 int max_stack, WrapperInfo *info, gboolean *out_found)
2410 mono_marshal_lock ();
2411 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2412 mono_marshal_unlock ();
2415 newm = mono_mb_create_method (mb, sig, max_stack);
2416 mono_marshal_lock ();
2417 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2420 g_hash_table_insert (cache, key, res);
2421 mono_marshal_set_wrapper_info (res, info);
2422 mono_marshal_unlock ();
2426 mono_marshal_unlock ();
2427 mono_free_method (newm);
2435 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2436 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2439 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2443 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2446 int wrapper_type = wrapper->wrapper_type;
2449 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2452 info = mono_marshal_get_wrapper_info (wrapper);
2454 switch (wrapper_type) {
2455 case MONO_WRAPPER_REMOTING_INVOKE:
2456 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2457 case MONO_WRAPPER_XDOMAIN_INVOKE:
2458 m = info->d.remoting.method;
2459 if (wrapper->is_inflated) {
2463 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2464 * contains an uninflated method.
2466 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2467 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2471 case MONO_WRAPPER_SYNCHRONIZED:
2472 m = info->d.synchronized.method;
2473 if (wrapper->is_inflated) {
2476 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2477 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2481 case MONO_WRAPPER_UNBOX:
2482 return info->d.unbox.method;
2483 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2484 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2485 return info->d.managed_to_native.method;
2488 case MONO_WRAPPER_RUNTIME_INVOKE:
2489 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2490 return info->d.runtime_invoke.method;
2499 * mono_marshal_get_wrapper_info:
2501 * Retrieve the WrapperInfo structure associated with WRAPPER.
2504 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2506 g_assert (wrapper->wrapper_type);
2508 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2512 * mono_marshal_set_wrapper_info:
2514 * Set the WrapperInfo structure associated with the wrapper
2515 * method METHOD to INFO.
2518 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2522 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2525 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2530 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2534 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2535 info->subtype = subtype;
2540 * get_wrapper_target_class:
2542 * Return the class where a wrapper method should be placed.
2545 get_wrapper_target_class (MonoImage *image)
2552 * - can't put all wrappers into an mscorlib class, because they reference
2553 * metadata (signature) so they should be put into the same image as the
2554 * method they wrap, so they are unloaded together.
2555 * - putting them into a class with a type initalizer could cause the
2556 * initializer to be executed which can be a problem if the wrappers are
2558 * - putting them into an inflated class can cause problems if the the
2559 * class is deleted because it references an image which is unloaded.
2560 * To avoid these problems, we put the wrappers into the <Module> class of
2563 if (image_is_dynamic (image)) {
2564 klass = ((MonoDynamicImage*)image)->wrappers_type;
2566 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2567 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2575 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2576 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2580 * check_generic_wrapper_cache:
2582 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2583 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2584 * generic method definition.
2587 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2590 MonoMethod *inst, *def;
2591 MonoGenericContext *ctx;
2593 g_assert (orig_method->is_inflated);
2594 ctx = mono_method_get_context (orig_method);
2597 * Look for the instance
2599 res = mono_marshal_find_in_cache (cache, key);
2604 * Look for the definition
2606 def = mono_marshal_find_in_cache (cache, def_key);
2609 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2610 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2612 mono_memory_barrier ();
2613 mono_marshal_lock ();
2614 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2616 g_hash_table_insert (cache, key, inst);
2619 mono_marshal_unlock ();
2626 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2629 MonoMethod *inst, *res;
2632 * We use the same cache for the generic definition and the instances.
2634 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2635 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2636 mono_memory_barrier ();
2637 mono_marshal_lock ();
2638 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2640 g_hash_table_insert (cache, key, inst);
2643 mono_marshal_unlock ();
2648 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2652 MonoMethod *inst, *def;
2655 * Look for the instance
2657 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2662 * Look for the definition
2664 def = mono_marshal_find_in_cache (cache, def_method->klass);
2666 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2667 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2670 mono_memory_barrier ();
2671 mono_marshal_lock ();
2672 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2674 g_hash_table_insert (cache, orig_method->klass, inst);
2677 mono_marshal_unlock ();
2684 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2687 MonoMethod *inst, *res;
2690 * We use the same cache for the generic definition and the instances.
2692 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2693 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2695 mono_memory_barrier ();
2696 mono_marshal_lock ();
2697 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2699 g_hash_table_insert (cache, orig_method->klass, inst);
2702 mono_marshal_unlock ();
2707 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2709 MonoMethodSignature *sig;
2710 MonoMethodBuilder *mb;
2715 MonoGenericContext *ctx = NULL;
2716 MonoMethod *orig_method = NULL;
2718 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2719 !strcmp (method->name, "BeginInvoke"));
2722 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2724 if (method->is_inflated) {
2725 orig_method = method;
2726 ctx = &((MonoMethodInflated*)method)->context;
2727 method = ((MonoMethodInflated*)method)->declaring;
2730 sig = mono_signature_no_pinvoke (method);
2736 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2737 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2741 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2742 (GHashFunc)mono_signature_hash,
2743 (GCompareFunc)mono_metadata_signature_equal);
2744 if ((res = mono_marshal_find_in_cache (cache, sig)))
2748 g_assert (sig->hasthis);
2750 name = mono_signature_to_name (sig, "begin_invoke");
2752 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2754 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2758 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2760 mono_mb_emit_ldarg (mb, 0);
2761 mono_mb_emit_ldloc (mb, params_var);
2762 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2763 mono_mb_emit_byte (mb, CEE_RET);
2768 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2769 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2771 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2779 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2781 MonoDomain *domain = mono_domain_get ();
2782 MonoAsyncResult *ares;
2783 MonoMethod *method = NULL;
2784 MonoMethodSignature *sig;
2785 MonoMethodMessage *msg;
2786 MonoObject *res, *exc;
2787 MonoArray *out_args;
2790 g_assert (delegate);
2792 if (!delegate->method_info) {
2793 g_assert (delegate->method);
2794 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2797 if (!delegate->method_info || !delegate->method_info->method)
2798 g_assert_not_reached ();
2800 klass = delegate->object.vtable->klass;
2802 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2803 g_assert (method != NULL);
2805 sig = mono_signature_no_pinvoke (method);
2807 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2809 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
2811 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."));
2815 if (ares->async_delegate != (MonoObject*)delegate) {
2816 mono_raise_exception (mono_get_exception_invalid_operation (
2817 "The IAsyncResult object provided does not match this delegate."));
2821 #ifndef DISABLE_REMOTING
2822 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2823 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2824 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2825 mono_message_init (domain, msg, delegate->method_info, NULL);
2826 msg->call_type = CallType_EndInvoke;
2827 MONO_OBJECT_SETREF (msg, async_result, ares);
2828 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2832 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc);
2836 if (((MonoException*)exc)->stack_trace) {
2837 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2839 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2841 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2844 mono_raise_exception ((MonoException*)exc);
2847 mono_method_return_message_restore (method, params, out_args);
2854 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2856 MonoType *t = mono_type_get_underlying_type (return_type);
2858 if (return_type->byref)
2859 return_type = &mono_defaults.int_class->byval_arg;
2862 case MONO_TYPE_VOID:
2863 g_assert_not_reached ();
2866 case MONO_TYPE_STRING:
2867 case MONO_TYPE_CLASS:
2868 case MONO_TYPE_OBJECT:
2869 case MONO_TYPE_ARRAY:
2870 case MONO_TYPE_SZARRAY:
2874 case MONO_TYPE_BOOLEAN:
2877 case MONO_TYPE_CHAR:
2887 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2888 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2890 case MONO_TYPE_GENERICINST:
2891 if (!mono_type_generic_inst_is_valuetype (t))
2894 case MONO_TYPE_VALUETYPE: {
2895 MonoClass *klass = mono_class_from_mono_type (return_type);
2896 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2897 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2901 case MONO_TYPE_MVAR: {
2902 MonoClass *klass = mono_class_from_mono_type (return_type);
2903 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
2907 g_warning ("type 0x%x not handled", return_type->type);
2908 g_assert_not_reached ();
2911 mono_mb_emit_byte (mb, CEE_RET);
2914 #endif /* DISABLE_JIT */
2917 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2919 MonoMethodSignature *sig;
2920 MonoMethodBuilder *mb;
2925 MonoGenericContext *ctx = NULL;
2926 MonoMethod *orig_method = NULL;
2928 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2929 !strcmp (method->name, "EndInvoke"));
2932 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2934 if (method->is_inflated) {
2935 orig_method = method;
2936 ctx = &((MonoMethodInflated*)method)->context;
2937 method = ((MonoMethodInflated*)method)->declaring;
2940 sig = mono_signature_no_pinvoke (method);
2946 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
2947 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2951 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
2952 (GHashFunc)mono_signature_hash,
2953 (GCompareFunc)mono_metadata_signature_equal);
2954 if ((res = mono_marshal_find_in_cache (cache, sig)))
2958 g_assert (sig->hasthis);
2960 name = mono_signature_to_name (sig, "end_invoke");
2962 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2964 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2968 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2970 mono_mb_emit_ldarg (mb, 0);
2971 mono_mb_emit_ldloc (mb, params_var);
2972 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2974 if (sig->ret->type == MONO_TYPE_VOID) {
2975 mono_mb_emit_byte (mb, CEE_POP);
2976 mono_mb_emit_byte (mb, CEE_RET);
2978 mono_mb_emit_restore_result (mb, sig->ret);
2983 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2984 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2986 res = mono_mb_create_and_cache (cache, sig,
2987 mb, sig, sig->param_count + 16);
2996 MonoMethodSignature *sig;
2998 } SignaturePointerPair;
3001 signature_pointer_pair_hash (gconstpointer data)
3003 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3005 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3009 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3011 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3012 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3016 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3018 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3020 return pair->pointer == user_data;
3024 free_signature_pointer_pair (SignaturePointerPair *pair)
3030 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3032 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3034 MonoMethodBuilder *mb;
3037 gpointer cache_key = NULL;
3038 SignaturePointerPair key;
3039 SignaturePointerPair *new_key;
3040 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3041 int pos0, pos1, pos2;
3043 MonoClass *target_class = NULL;
3044 gboolean closed_over_null = FALSE;
3045 MonoGenericContext *ctx = NULL;
3046 MonoGenericContainer *container = NULL;
3047 MonoMethod *orig_method = NULL;
3049 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3053 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3054 !strcmp (method->name, "Invoke"));
3056 invoke_sig = sig = mono_signature_no_pinvoke (method);
3059 * If the delegate target is null, and the target method is not static, a virtual
3060 * call is made to that method with the first delegate argument as this. This is
3061 * a non-documented .NET feature.
3064 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3065 if (target_method->is_inflated) {
3066 MonoType *target_type;
3068 g_assert (method->signature->hasthis);
3069 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3070 mono_method_get_context (method));
3071 target_class = mono_class_from_mono_type (target_type);
3073 target_class = target_method->klass;
3076 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3079 if (static_method_with_first_arg_bound) {
3080 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3081 g_assert (!callvirt);
3082 invoke_sig = mono_method_signature (target_method);
3086 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3088 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3089 orig_method = method;
3090 ctx = &((MonoMethodInflated*)method)->context;
3091 method = ((MonoMethodInflated*)method)->declaring;
3093 container = mono_method_get_generic_container (method);
3095 container = method->klass->generic_container;
3096 g_assert (container);
3098 invoke_sig = sig = mono_signature_no_pinvoke (method);
3105 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3106 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3109 cache_key = method->klass;
3110 } else if (static_method_with_first_arg_bound) {
3111 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3112 (GHashFunc)mono_signature_hash,
3113 (GCompareFunc)mono_metadata_signature_equal);
3115 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3117 res = mono_marshal_find_in_cache (cache, invoke_sig);
3120 cache_key = invoke_sig;
3121 } else if (callvirt) {
3122 GHashTable **cache_ptr;
3124 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3126 /* We need to cache the signature+method pair */
3127 mono_marshal_lock ();
3129 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3131 key.sig = invoke_sig;
3132 key.pointer = target_method;
3133 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3134 mono_marshal_unlock ();
3138 // Inflated methods should not be in this cache because it's not stored on the imageset.
3139 g_assert (!method->is_inflated);
3140 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3141 (GHashFunc)mono_signature_hash,
3142 (GCompareFunc)mono_metadata_signature_equal);
3143 res = mono_marshal_find_in_cache (cache, sig);
3149 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3150 static_sig->hasthis = 0;
3151 if (!static_method_with_first_arg_bound)
3152 invoke_sig = static_sig;
3154 if (static_method_with_first_arg_bound)
3155 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3156 else if (closed_over_null)
3157 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3159 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3161 name = mono_signature_to_name (invoke_sig, "invoke");
3163 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3165 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3169 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3171 /* allocate local 0 (object) */
3172 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3173 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3174 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3175 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3176 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3179 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3181 g_assert (sig->hasthis);
3184 * {type: sig->ret} res;
3185 * if (delegates == null) {
3186 * return this.<target> ( args .. );
3188 * int i = 0, len = this.delegates.Length;
3190 * res = this.delegates [i].Invoke ( args .. );
3191 * } while (++i < len);
3196 /* this wrapper can be used in unmanaged-managed transitions */
3197 emit_thread_interrupt_checkpoint (mb);
3199 /* delegates = this.delegates */
3200 mono_mb_emit_ldarg (mb, 0);
3201 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3202 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3203 mono_mb_emit_stloc (mb, local_delegates);
3206 /* if (delegates == null) */
3207 mono_mb_emit_ldloc (mb, local_delegates);
3208 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3210 /* return target.<target_method|method_ptr> ( args .. ); */
3212 /* target = d.target; */
3213 mono_mb_emit_ldarg (mb, 0);
3214 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3215 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3216 mono_mb_emit_stloc (mb, local_target);
3218 /*static methods with bound first arg can have null target and still be bound*/
3219 if (!static_method_with_first_arg_bound) {
3220 /* if target != null */
3221 mono_mb_emit_ldloc (mb, local_target);
3222 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3224 /* then call this->method_ptr nonstatic */
3227 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3229 mono_mb_emit_ldloc (mb, local_target);
3230 for (i = 0; i < sig->param_count; ++i)
3231 mono_mb_emit_ldarg (mb, i + 1);
3232 mono_mb_emit_ldarg (mb, 0);
3233 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3234 mono_mb_emit_byte (mb, CEE_LDIND_I);
3235 mono_mb_emit_ldarg (mb, 0);
3236 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3237 mono_mb_emit_byte (mb, CEE_LDIND_I);
3238 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3239 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3240 mono_mb_emit_byte (mb, CEE_RET);
3243 /* else [target == null] call this->method_ptr static */
3244 mono_mb_patch_branch (mb, pos0);
3248 if (!closed_over_null) {
3249 if (target_class->valuetype) {
3250 mono_mb_emit_ldarg (mb, 1);
3251 for (i = 1; i < sig->param_count; ++i)
3252 mono_mb_emit_ldarg (mb, i + 1);
3253 mono_mb_emit_op (mb, CEE_CALL, target_method);
3255 mono_mb_emit_ldarg (mb, 1);
3256 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3257 for (i = 1; i < sig->param_count; ++i)
3258 mono_mb_emit_ldarg (mb, i + 1);
3259 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3262 mono_mb_emit_byte (mb, CEE_LDNULL);
3263 for (i = 0; i < sig->param_count; ++i)
3264 mono_mb_emit_ldarg (mb, i + 1);
3265 mono_mb_emit_op (mb, CEE_CALL, target_method);
3268 if (static_method_with_first_arg_bound) {
3269 mono_mb_emit_ldloc (mb, local_target);
3270 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3271 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3273 for (i = 0; i < sig->param_count; ++i)
3274 mono_mb_emit_ldarg (mb, i + 1);
3275 mono_mb_emit_ldarg (mb, 0);
3276 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3277 mono_mb_emit_byte (mb, CEE_LDIND_I);
3278 mono_mb_emit_ldarg (mb, 0);
3279 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3280 mono_mb_emit_byte (mb, CEE_LDIND_I);
3281 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3282 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3285 mono_mb_emit_byte (mb, CEE_RET);
3287 /* else [delegates != null] */
3288 mono_mb_patch_branch (mb, pos2);
3290 /* len = delegates.Length; */
3291 mono_mb_emit_ldloc (mb, local_delegates);
3292 mono_mb_emit_byte (mb, CEE_LDLEN);
3293 mono_mb_emit_byte (mb, CEE_CONV_I4);
3294 mono_mb_emit_stloc (mb, local_len);
3297 mono_mb_emit_icon (mb, 0);
3298 mono_mb_emit_stloc (mb, local_i);
3300 pos1 = mono_mb_get_label (mb);
3302 /* d = delegates [i]; */
3303 mono_mb_emit_ldloc (mb, local_delegates);
3304 mono_mb_emit_ldloc (mb, local_i);
3305 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3306 mono_mb_emit_stloc (mb, local_d);
3308 /* res = d.Invoke ( args .. ); */
3309 mono_mb_emit_ldloc (mb, local_d);
3310 for (i = 0; i < sig->param_count; i++)
3311 mono_mb_emit_ldarg (mb, i + 1);
3313 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3316 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3317 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3320 mono_mb_emit_stloc (mb, local_res);
3323 mono_mb_emit_add_to_local (mb, local_i, 1);
3326 mono_mb_emit_ldloc (mb, local_i);
3327 mono_mb_emit_ldloc (mb, local_len);
3328 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3332 mono_mb_emit_ldloc (mb, local_res);
3333 mono_mb_emit_byte (mb, CEE_RET);
3335 mb->skip_visibility = 1;
3336 #endif /* DISABLE_JIT */
3338 info = mono_wrapper_info_create (mb, subtype);
3343 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3344 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3345 } else if (callvirt) {
3346 new_key = g_new0 (SignaturePointerPair, 1);
3349 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3353 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3357 /* mono_method_print_code (res); */
3363 * the returned method invokes all methods in a multicast delegate.
3366 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3368 gboolean callvirt = FALSE;
3369 gboolean static_method_with_first_arg_bound = FALSE;
3370 MonoMethod *target_method = NULL;
3371 MonoMethodSignature *sig;
3373 sig = mono_signature_no_pinvoke (method);
3375 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3377 target_method = del->method;
3380 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3381 static_method_with_first_arg_bound = TRUE;
3382 target_method = del->method;
3385 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3389 MonoMethodSignature *ctor_sig;
3390 MonoMethodSignature *sig;
3393 /* protected by the marshal lock, contains CtorSigPair pointers */
3394 static GSList *strsig_list = NULL;
3396 static MonoMethodSignature *
3397 lookup_string_ctor_signature (MonoMethodSignature *sig)
3399 MonoMethodSignature *callsig;
3403 mono_marshal_lock ();
3405 for (item = strsig_list; item; item = item->next) {
3406 cs = (CtorSigPair *)item->data;
3407 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3408 * because it is lock-free.
3410 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3415 mono_marshal_unlock ();
3419 static MonoMethodSignature *
3420 add_string_ctor_signature (MonoMethod *method)
3422 MonoMethodSignature *callsig;
3425 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3426 callsig->ret = &mono_defaults.string_class->byval_arg;
3427 cs = g_new (CtorSigPair, 1);
3429 cs->ctor_sig = mono_method_signature (method);
3431 mono_marshal_lock ();
3432 strsig_list = g_slist_prepend (strsig_list, cs);
3433 mono_marshal_unlock ();
3438 * mono_marshal_get_string_ctor_signature:
3440 * Return the modified signature used by string ctors (they return the newly created
3443 MonoMethodSignature*
3444 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3446 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3448 sig = add_string_ctor_signature (method);
3454 get_runtime_invoke_type (MonoType *t, gboolean ret)
3457 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3459 /* Can't share this with 'I' as that needs another indirection */
3460 return &mono_defaults.int_class->this_arg;
3463 if (MONO_TYPE_IS_REFERENCE (t))
3464 return &mono_defaults.object_class->byval_arg;
3467 /* The result needs to be boxed */
3472 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3475 return &mono_defaults.sbyte_class->byval_arg;
3477 return &mono_defaults.int16_class->byval_arg;
3479 return &mono_defaults.int32_class->byval_arg;
3482 return &mono_defaults.int64_class->byval_arg;
3483 case MONO_TYPE_BOOLEAN:
3484 return &mono_defaults.byte_class->byval_arg;
3485 case MONO_TYPE_CHAR:
3486 return &mono_defaults.uint16_class->byval_arg;
3488 return &mono_defaults.int_class->byval_arg;
3489 case MONO_TYPE_VALUETYPE:
3490 if (t->data.klass->enumtype) {
3491 t = mono_class_enum_basetype (t->data.klass);
3501 * mono_marshal_get_runtime_invoke_sig:
3503 * Return a common signature used for sharing runtime invoke wrappers.
3505 static MonoMethodSignature*
3506 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3508 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3511 res->generic_param_count = 0;
3512 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3513 for (i = 0; i < res->param_count; ++i)
3514 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3520 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3522 /* Can't share wrappers which return a vtype since it needs to be boxed */
3523 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))
3526 return mono_metadata_signature_equal (sig1, sig2);
3534 * Emit the call to the wrapper method from a runtime invoke wrapper.
3537 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3538 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3540 gboolean virtual_, gboolean need_direct_wrapper)
3542 static MonoString *string_dummy = NULL;
3544 int *tmp_nullable_locals;
3545 gboolean void_ret = FALSE;
3546 gboolean string_ctor = method && method->string_ctor;
3548 /* to make it work with our special string constructors */
3549 if (!string_dummy) {
3550 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3551 string_dummy = mono_string_new_wrapper ("dummy");
3555 g_assert (sig->hasthis);
3556 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3561 if (mono_gc_is_moving ()) {
3562 mono_mb_emit_ptr (mb, &string_dummy);
3563 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3565 mono_mb_emit_ptr (mb, string_dummy);
3568 mono_mb_emit_ldarg (mb, 0);
3572 tmp_nullable_locals = g_new0 (int, sig->param_count);
3574 for (i = 0; i < sig->param_count; i++) {
3575 MonoType *t = sig->params [i];
3578 mono_mb_emit_ldarg (mb, 1);
3580 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3581 mono_mb_emit_byte (mb, CEE_ADD);
3585 mono_mb_emit_byte (mb, CEE_LDIND_I);
3586 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3587 * So to make this work we unbox it to a local variablee and push a reference to that.
3589 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3590 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3592 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3593 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3594 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3599 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3600 type = sig->params [i]->type;
3604 case MONO_TYPE_BOOLEAN:
3608 case MONO_TYPE_CHAR:
3617 mono_mb_emit_byte (mb, CEE_LDIND_I);
3618 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3620 case MONO_TYPE_STRING:
3621 case MONO_TYPE_CLASS:
3622 case MONO_TYPE_ARRAY:
3624 case MONO_TYPE_SZARRAY:
3625 case MONO_TYPE_OBJECT:
3626 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3628 case MONO_TYPE_GENERICINST:
3629 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3630 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3635 case MONO_TYPE_VALUETYPE:
3636 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3637 type = mono_class_enum_basetype (t->data.klass)->type;
3640 mono_mb_emit_byte (mb, CEE_LDIND_I);
3641 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3642 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3643 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3644 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3646 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3650 g_assert_not_reached ();
3655 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3656 } else if (need_direct_wrapper) {
3657 mono_mb_emit_op (mb, CEE_CALL, method);
3659 mono_mb_emit_ldarg (mb, 3);
3660 mono_mb_emit_calli (mb, callsig);
3663 if (sig->ret->byref) {
3665 g_assert_not_reached ();
3668 switch (sig->ret->type) {
3669 case MONO_TYPE_VOID:
3673 case MONO_TYPE_BOOLEAN:
3674 case MONO_TYPE_CHAR:
3687 case MONO_TYPE_VALUETYPE:
3688 case MONO_TYPE_TYPEDBYREF:
3689 case MONO_TYPE_GENERICINST:
3690 /* box value types */
3691 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3693 case MONO_TYPE_STRING:
3694 case MONO_TYPE_CLASS:
3695 case MONO_TYPE_ARRAY:
3696 case MONO_TYPE_SZARRAY:
3697 case MONO_TYPE_OBJECT:
3701 /* The result is an IntPtr */
3702 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3705 g_assert_not_reached ();
3709 mono_mb_emit_stloc (mb, loc_res);
3711 /* Convert back nullable-byref arguments */
3712 for (i = 0; i < sig->param_count; i++) {
3713 MonoType *t = sig->params [i];
3716 * Box the result and put it back into the array, the caller will have
3717 * to obtain it from there.
3719 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3720 mono_mb_emit_ldarg (mb, 1);
3721 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3722 mono_mb_emit_byte (mb, CEE_ADD);
3724 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3725 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3727 mono_mb_emit_byte (mb, CEE_STIND_REF);
3731 g_free (tmp_nullable_locals);
3735 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3736 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3737 gboolean virtual_, gboolean need_direct_wrapper)
3740 MonoExceptionClause *clause;
3741 int loc_res, loc_exc;
3743 /* The wrapper looks like this:
3749 * } catch (Exception e) {
3757 /* allocate local 0 (object) tmp */
3758 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3759 /* allocate local 1 (object) exc */
3760 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3762 /* *exc is assumed to be initialized to NULL by the caller */
3764 mono_mb_emit_byte (mb, CEE_LDARG_2);
3765 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3770 labels [1] = mono_mb_get_label (mb);
3771 emit_thread_force_interrupt_checkpoint (mb);
3772 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3774 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3776 /* Add a try clause around the call */
3777 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
3778 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3779 clause->data.catch_class = mono_defaults.exception_class;
3780 clause->try_offset = labels [1];
3781 clause->try_len = mono_mb_get_label (mb) - labels [1];
3783 clause->handler_offset = mono_mb_get_label (mb);
3786 mono_mb_emit_stloc (mb, loc_exc);
3787 mono_mb_emit_byte (mb, CEE_LDARG_2);
3788 mono_mb_emit_ldloc (mb, loc_exc);
3789 mono_mb_emit_byte (mb, CEE_STIND_REF);
3791 mono_mb_emit_branch (mb, CEE_LEAVE);
3793 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3795 mono_mb_set_clauses (mb, 1, clause);
3797 mono_mb_patch_branch (mb, labels [2]);
3798 mono_mb_emit_ldloc (mb, loc_res);
3799 mono_mb_emit_byte (mb, CEE_RET);
3804 mono_mb_patch_branch (mb, labels [0]);
3805 emit_thread_force_interrupt_checkpoint (mb);
3806 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3808 mono_mb_emit_ldloc (mb, 0);
3809 mono_mb_emit_byte (mb, CEE_RET);
3814 * generates IL code for the runtime invoke function
3815 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
3817 * we also catch exceptions if exc != null
3818 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3819 * it means that the compiled code for METHOD does not have to be looked up
3820 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3821 * its METHOD argument.
3824 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
3826 MonoMethodSignature *sig, *csig, *callsig;
3827 MonoMethodBuilder *mb;
3828 GHashTable *cache = NULL;
3829 MonoClass *target_klass;
3830 MonoMethod *res = NULL;
3831 static MonoMethodSignature *cctor_signature = NULL;
3832 static MonoMethodSignature *finalize_signature = NULL;
3834 const char *param_names [16];
3835 gboolean need_direct_wrapper = FALSE;
3840 if (!cctor_signature) {
3841 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3842 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3844 if (!finalize_signature) {
3845 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3846 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3847 finalize_signature->hasthis = 1;
3851 need_direct_wrapper = TRUE;
3854 * Use a separate cache indexed by methods to speed things up and to avoid the
3855 * boundless mempool growth caused by the signature_dup stuff below.
3858 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
3860 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
3862 res = mono_marshal_find_in_cache (cache, method);
3866 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3867 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
3869 * Array Get/Set/Address methods. The JIT implements them using inline code
3870 * so we need to create an invoke wrapper which calls the method directly.
3872 need_direct_wrapper = TRUE;
3875 if (method->string_ctor) {
3876 callsig = lookup_string_ctor_signature (mono_method_signature (method));
3878 callsig = add_string_ctor_signature (method);
3879 /* Can't share this as we push a string as this */
3880 need_direct_wrapper = TRUE;
3882 if (method_is_dynamic (method))
3883 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3885 callsig = mono_method_signature (method);
3888 sig = mono_method_signature (method);
3890 target_klass = get_wrapper_target_class (method->klass->image);
3892 /* Try to share wrappers for non-corlib methods with simple signatures */
3893 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
3894 callsig = cctor_signature;
3895 target_klass = mono_defaults.object_class;
3896 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
3897 callsig = finalize_signature;
3898 target_klass = mono_defaults.object_class;
3901 if (need_direct_wrapper) {
3902 /* Already searched at the start */
3904 MonoMethodSignature *tmp_sig;
3906 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
3907 GHashTable **cache_table = NULL;
3909 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3910 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
3912 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
3914 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
3915 (GCompareFunc)runtime_invoke_signature_equal);
3917 /* from mono_marshal_find_in_cache */
3918 mono_marshal_lock ();
3919 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
3920 mono_marshal_unlock ();
3927 /* Make a copy of the signature from the image mempool */
3929 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
3933 csig = mono_metadata_signature_alloc (target_klass->image, 4);
3935 csig->ret = &mono_defaults.object_class->byval_arg;
3936 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3937 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
3939 csig->params [0] = &mono_defaults.object_class->byval_arg;
3940 csig->params [1] = &mono_defaults.int_class->byval_arg;
3941 csig->params [2] = &mono_defaults.int_class->byval_arg;
3942 csig->params [3] = &mono_defaults.int_class->byval_arg;
3945 /* This is called from runtime code so it has to be cdecl */
3946 csig->call_convention = MONO_CALL_C;
3949 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
3950 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
3954 param_names [0] = "this";
3955 param_names [1] = "params";
3956 param_names [2] = "exc";
3957 param_names [3] = "method";
3958 mono_mb_set_param_names (mb, param_names);
3960 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
3963 if (need_direct_wrapper) {
3965 mb->skip_visibility = 1;
3967 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
3968 info->d.runtime_invoke.method = method;
3969 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
3971 /* taken from mono_mb_create_and_cache */
3972 mono_marshal_lock ();
3973 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
3974 mono_marshal_unlock ();
3976 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
3977 info->d.runtime_invoke.sig = callsig;
3979 /* Somebody may have created it before us */
3982 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
3984 mono_marshal_lock ();
3985 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
3987 GHashTable *direct_cache;
3989 g_hash_table_insert (cache, callsig, res);
3990 /* Can't insert it into wrapper_hash since the key is a signature */
3991 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
3993 g_hash_table_insert (direct_cache, method, res);
3995 mono_free_method (newm);
3997 mono_marshal_unlock ();
4000 /* end mono_mb_create_and_cache */
4009 * mono_marshal_get_runtime_invoke_dynamic:
4011 * Return a method which can be used to invoke managed methods from native code
4013 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4014 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4015 * ARGS should point to an architecture specific structure containing
4016 * the arguments and space for the return value.
4017 * The other arguments are the same as for runtime_invoke (), except that
4018 * ARGS should contain the this argument too.
4019 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4020 * is only one copy of it, which is useful in full-aot.
4021 * The wrapper info for the wrapper is a WrapperInfo structure.
4024 mono_marshal_get_runtime_invoke_dynamic (void)
4026 static MonoMethod *method;
4027 MonoMethodSignature *csig;
4028 MonoExceptionClause *clause;
4029 MonoMethodBuilder *mb;
4037 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4039 csig->ret = &mono_defaults.void_class->byval_arg;
4040 csig->params [0] = &mono_defaults.int_class->byval_arg;
4041 csig->params [1] = &mono_defaults.int_class->byval_arg;
4042 csig->params [2] = &mono_defaults.int_class->byval_arg;
4043 csig->params [3] = &mono_defaults.int_class->byval_arg;
4045 name = g_strdup ("runtime_invoke_dynamic");
4046 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4050 /* allocate local 0 (object) tmp */
4051 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4052 /* allocate local 1 (object) exc */
4053 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4055 /* cond set *exc to null */
4056 mono_mb_emit_byte (mb, CEE_LDARG_1);
4057 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4058 mono_mb_emit_byte (mb, 3);
4059 mono_mb_emit_byte (mb, CEE_LDARG_1);
4060 mono_mb_emit_byte (mb, CEE_LDNULL);
4061 mono_mb_emit_byte (mb, CEE_STIND_REF);
4063 emit_thread_force_interrupt_checkpoint (mb);
4065 mono_mb_emit_byte (mb, CEE_LDARG_0);
4066 mono_mb_emit_byte (mb, CEE_LDARG_2);
4067 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4068 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4070 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4072 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4073 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4074 clause->try_len = mono_mb_get_label (mb);
4077 clause->data.filter_offset = mono_mb_get_label (mb);
4079 mono_mb_emit_byte (mb, CEE_POP);
4080 mono_mb_emit_byte (mb, CEE_LDARG_1);
4081 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4082 mono_mb_emit_byte (mb, CEE_PREFIX1);
4083 mono_mb_emit_byte (mb, CEE_CGT_UN);
4084 mono_mb_emit_byte (mb, CEE_PREFIX1);
4085 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4087 clause->handler_offset = mono_mb_get_label (mb);
4090 /* store exception */
4091 mono_mb_emit_stloc (mb, 1);
4093 mono_mb_emit_byte (mb, CEE_LDARG_1);
4094 mono_mb_emit_ldloc (mb, 1);
4095 mono_mb_emit_byte (mb, CEE_STIND_REF);
4097 mono_mb_emit_byte (mb, CEE_LDNULL);
4098 mono_mb_emit_stloc (mb, 0);
4100 /* Check for the abort exception */
4101 mono_mb_emit_ldloc (mb, 1);
4102 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4103 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4105 /* Delay the abort exception */
4106 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4108 mono_mb_patch_short_branch (mb, posna);
4109 mono_mb_emit_branch (mb, CEE_LEAVE);
4111 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4113 mono_mb_set_clauses (mb, 1, clause);
4116 mono_mb_patch_branch (mb, pos);
4117 //mono_mb_emit_ldloc (mb, 0);
4118 mono_mb_emit_byte (mb, CEE_RET);
4119 #endif /* DISABLE_JIT */
4121 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4123 mono_marshal_lock ();
4124 /* double-checked locking */
4126 method = mono_mb_create (mb, csig, 16, info);
4128 mono_marshal_unlock ();
4136 * mono_marshal_get_runtime_invoke_for_sig:
4138 * Return a runtime invoke wrapper for a given signature.
4141 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4143 MonoMethodSignature *csig, *callsig;
4144 MonoMethodBuilder *mb;
4146 GHashTable *cache = NULL;
4147 GHashTable **cache_table = NULL;
4148 MonoMethod *res = NULL;
4150 const char *param_names [16];
4153 /* A simplified version of mono_marshal_get_runtime_invoke */
4155 image = mono_defaults.corlib;
4157 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4159 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4161 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4162 (GCompareFunc)runtime_invoke_signature_equal);
4164 /* from mono_marshal_find_in_cache */
4165 mono_marshal_lock ();
4166 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4167 mono_marshal_unlock ();
4174 /* Make a copy of the signature from the image mempool */
4175 callsig = mono_metadata_signature_dup_full (image, callsig);
4177 csig = mono_metadata_signature_alloc (image, 4);
4178 csig->ret = &mono_defaults.object_class->byval_arg;
4179 csig->params [0] = &mono_defaults.object_class->byval_arg;
4180 csig->params [1] = &mono_defaults.int_class->byval_arg;
4181 csig->params [2] = &mono_defaults.int_class->byval_arg;
4182 csig->params [3] = &mono_defaults.int_class->byval_arg;
4185 /* This is called from runtime code so it has to be cdecl */
4186 csig->call_convention = MONO_CALL_C;
4189 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4190 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4194 param_names [0] = "this";
4195 param_names [1] = "params";
4196 param_names [2] = "exc";
4197 param_names [3] = "method";
4198 mono_mb_set_param_names (mb, param_names);
4200 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4203 /* taken from mono_mb_create_and_cache */
4204 mono_marshal_lock ();
4205 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4206 mono_marshal_unlock ();
4208 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4209 info->d.runtime_invoke.sig = callsig;
4211 /* Somebody may have created it before us */
4214 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4216 mono_marshal_lock ();
4217 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4220 g_hash_table_insert (cache, callsig, res);
4222 mono_free_method (newm);
4224 mono_marshal_unlock ();
4227 /* end mono_mb_create_and_cache */
4236 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4238 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4239 klass->name_space, klass->name);
4241 mono_mb_emit_exception_marshal_directive (mb, msg);
4246 * generates IL code for the icall wrapper (the generated method
4247 * calls the unmanaged code in func)
4248 * The wrapper info for the wrapper is a WrapperInfo structure.
4251 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4253 MonoMethodSignature *csig, *csig2;
4254 MonoMethodBuilder *mb;
4259 g_assert (sig->pinvoke);
4261 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4263 mb->method->save_lmf = 1;
4265 /* Add an explicit this argument */
4267 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4269 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4273 mono_mb_emit_byte (mb, CEE_LDARG_0);
4275 for (i = 0; i < sig->param_count; i++)
4276 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4278 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4279 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4280 mono_mb_emit_calli (mb, csig2);
4281 if (check_exceptions)
4282 emit_thread_interrupt_checkpoint (mb);
4283 mono_mb_emit_byte (mb, CEE_RET);
4286 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4288 if (csig->call_convention == MONO_CALL_VARARG)
4289 csig->call_convention = 0;
4291 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4292 info->d.icall.func = (gpointer)func;
4293 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4300 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4301 MonoMarshalSpec *spec,
4302 int conv_arg, MonoType **conv_arg_type,
4303 MarshalAction action)
4306 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4307 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4312 static MonoClass *ICustomMarshaler = NULL;
4313 static MonoMethod *cleanup_native, *cleanup_managed;
4314 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4315 MonoMethod *get_instance = NULL;
4316 MonoMethodBuilder *mb = m->mb;
4317 char *exception_msg = NULL;
4321 if (!ICustomMarshaler) {
4322 MonoClass *klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
4324 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4325 goto handle_exception;
4328 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4329 g_assert (cleanup_native);
4330 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4331 g_assert (cleanup_managed);
4332 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4333 g_assert (marshal_managed_to_native);
4334 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4335 g_assert (marshal_native_to_managed);
4337 mono_memory_barrier ();
4338 ICustomMarshaler = klass;
4341 if (spec->data.custom_data.image)
4342 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, spec->data.custom_data.image);
4344 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
4345 g_assert (mtype != NULL);
4346 mklass = mono_class_from_mono_type (mtype);
4347 g_assert (mklass != NULL);
4349 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4350 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4352 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4354 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4355 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4356 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4357 (get_sig->params [0]->type != MONO_TYPE_STRING))
4358 get_instance = NULL;
4362 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);
4365 /* Throw exception and emit compensation code if neccesary */
4366 if (exception_msg) {
4368 case MARSHAL_ACTION_CONV_IN:
4369 case MARSHAL_ACTION_CONV_RESULT:
4370 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4371 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4372 mono_mb_emit_byte (mb, CEE_POP);
4374 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4375 g_free (exception_msg);
4378 case MARSHAL_ACTION_PUSH:
4379 mono_mb_emit_byte (mb, CEE_LDNULL);
4387 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4388 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4391 case MARSHAL_ACTION_CONV_IN:
4393 case MONO_TYPE_CLASS:
4394 case MONO_TYPE_OBJECT:
4395 case MONO_TYPE_STRING:
4396 case MONO_TYPE_ARRAY:
4397 case MONO_TYPE_SZARRAY:
4398 case MONO_TYPE_VALUETYPE:
4402 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4403 g_assert_not_reached ();
4407 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4409 mono_mb_emit_byte (mb, CEE_LDNULL);
4410 mono_mb_emit_stloc (mb, conv_arg);
4412 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4415 /* Minic MS.NET behavior */
4416 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4419 /* Check for null */
4420 mono_mb_emit_ldarg (mb, argnum);
4422 mono_mb_emit_byte (mb, CEE_LDIND_I);
4423 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4425 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4427 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4429 mono_mb_emit_ldarg (mb, argnum);
4431 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4433 if (t->type == MONO_TYPE_VALUETYPE) {
4435 * Since we can't determine the type of the argument, we
4436 * will assume the unmanaged function takes a pointer.
4438 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4440 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4443 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4444 mono_mb_emit_stloc (mb, conv_arg);
4446 mono_mb_patch_branch (mb, pos2);
4449 case MARSHAL_ACTION_CONV_OUT:
4450 /* Check for null */
4451 mono_mb_emit_ldloc (mb, conv_arg);
4452 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4455 mono_mb_emit_ldarg (mb, argnum);
4457 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4459 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4461 mono_mb_emit_ldloc (mb, conv_arg);
4462 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4463 mono_mb_emit_byte (mb, CEE_STIND_REF);
4464 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4465 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4467 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4469 mono_mb_emit_ldloc (mb, conv_arg);
4470 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4472 /* We have nowhere to store the result */
4473 mono_mb_emit_byte (mb, CEE_POP);
4476 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4478 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4480 mono_mb_emit_ldloc (mb, conv_arg);
4482 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4484 mono_mb_patch_branch (mb, pos2);
4487 case MARSHAL_ACTION_PUSH:
4489 mono_mb_emit_ldloc_addr (mb, conv_arg);
4491 mono_mb_emit_ldloc (mb, conv_arg);
4494 case MARSHAL_ACTION_CONV_RESULT:
4495 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4497 mono_mb_emit_stloc (mb, 3);
4499 mono_mb_emit_ldloc (mb, 3);
4500 mono_mb_emit_stloc (mb, loc1);
4502 /* Check for null */
4503 mono_mb_emit_ldloc (mb, 3);
4504 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4506 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4508 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4509 mono_mb_emit_byte (mb, CEE_DUP);
4511 mono_mb_emit_ldloc (mb, 3);
4512 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4513 mono_mb_emit_stloc (mb, 3);
4515 mono_mb_emit_ldloc (mb, loc1);
4516 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4518 mono_mb_patch_branch (mb, pos2);
4521 case MARSHAL_ACTION_MANAGED_CONV_IN:
4522 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4524 mono_mb_emit_byte (mb, CEE_LDNULL);
4525 mono_mb_emit_stloc (mb, conv_arg);
4527 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4530 /* Check for null */
4531 mono_mb_emit_ldarg (mb, argnum);
4533 mono_mb_emit_byte (mb, CEE_LDIND_I);
4534 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4536 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4537 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4539 mono_mb_emit_ldarg (mb, argnum);
4541 mono_mb_emit_byte (mb, CEE_LDIND_I);
4543 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4544 mono_mb_emit_stloc (mb, conv_arg);
4546 mono_mb_patch_branch (mb, pos2);
4549 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4550 g_assert (!t->byref);
4552 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4554 mono_mb_emit_stloc (mb, 3);
4556 mono_mb_emit_ldloc (mb, 3);
4557 mono_mb_emit_stloc (mb, loc1);
4559 /* Check for null */
4560 mono_mb_emit_ldloc (mb, 3);
4561 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4563 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4564 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4565 mono_mb_emit_byte (mb, CEE_DUP);
4567 mono_mb_emit_ldloc (mb, 3);
4568 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4569 mono_mb_emit_stloc (mb, 3);
4571 mono_mb_emit_ldloc (mb, loc1);
4572 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4574 mono_mb_patch_branch (mb, pos2);
4577 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4579 /* Check for null */
4580 mono_mb_emit_ldloc (mb, conv_arg);
4581 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4584 mono_mb_emit_ldarg (mb, argnum);
4586 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4588 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4590 mono_mb_emit_ldloc (mb, conv_arg);
4591 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4592 mono_mb_emit_byte (mb, CEE_STIND_I);
4595 /* Call CleanUpManagedData */
4596 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4598 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4600 mono_mb_emit_ldloc (mb, conv_arg);
4601 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4603 mono_mb_patch_branch (mb, pos2);
4607 g_assert_not_reached ();
4615 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4616 MonoMarshalSpec *spec,
4617 int conv_arg, MonoType **conv_arg_type,
4618 MarshalAction action)
4621 MonoMethodBuilder *mb = m->mb;
4624 case MARSHAL_ACTION_CONV_IN: {
4625 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4627 g_assert (t->type == MONO_TYPE_OBJECT);
4628 g_assert (!t->byref);
4630 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4631 mono_mb_emit_ldarg (mb, argnum);
4632 mono_mb_emit_icon (mb, encoding);
4633 mono_mb_emit_icon (mb, t->attrs);
4634 mono_mb_emit_icall (mb, mono_marshal_asany);
4635 mono_mb_emit_stloc (mb, conv_arg);
4639 case MARSHAL_ACTION_PUSH:
4640 mono_mb_emit_ldloc (mb, conv_arg);
4643 case MARSHAL_ACTION_CONV_OUT: {
4644 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4646 mono_mb_emit_ldarg (mb, argnum);
4647 mono_mb_emit_ldloc (mb, conv_arg);
4648 mono_mb_emit_icon (mb, encoding);
4649 mono_mb_emit_icon (mb, t->attrs);
4650 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4655 g_assert_not_reached ();
4662 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4663 MonoMarshalSpec *spec,
4664 int conv_arg, MonoType **conv_arg_type,
4665 MarshalAction action)
4668 MonoMethodBuilder *mb = m->mb;
4669 MonoClass *klass, *date_time_class;
4672 klass = mono_class_from_mono_type (t);
4674 date_time_class = mono_class_from_name_cached (mono_defaults.corlib, "System", "DateTime");
4677 case MARSHAL_ACTION_CONV_IN:
4678 if (klass == date_time_class) {
4679 /* Convert it to an OLE DATE type */
4680 static MonoMethod *to_oadate;
4683 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4684 g_assert (to_oadate);
4686 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4689 mono_mb_emit_ldarg (mb, argnum);
4690 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4693 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4695 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4697 mono_mb_emit_ldarg_addr (mb, argnum);
4698 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4699 mono_mb_emit_stloc (mb, conv_arg);
4703 mono_mb_patch_branch (mb, pos);
4707 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4708 klass->blittable || klass->enumtype)
4711 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4713 /* store the address of the source into local variable 0 */
4715 mono_mb_emit_ldarg (mb, argnum);
4717 mono_mb_emit_ldarg_addr (mb, argnum);
4719 mono_mb_emit_stloc (mb, 0);
4721 /* allocate space for the native struct and
4722 * store the address into local variable 1 (dest) */
4723 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4724 mono_mb_emit_byte (mb, CEE_PREFIX1);
4725 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4726 mono_mb_emit_stloc (mb, conv_arg);
4729 mono_mb_emit_ldloc (mb, 0);
4730 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4733 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4735 mono_mb_emit_ldloc (mb, conv_arg);
4736 mono_mb_emit_stloc (mb, 1);
4738 /* emit valuetype conversion code */
4739 emit_struct_conv (mb, klass, FALSE);
4743 mono_mb_patch_branch (mb, pos);
4746 case MARSHAL_ACTION_PUSH:
4747 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4749 g_assert (!t->byref);
4751 /* Have to change the signature since the vtype is passed byref */
4752 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4754 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4755 klass->blittable || klass->enumtype)
4756 mono_mb_emit_ldarg_addr (mb, argnum);
4758 mono_mb_emit_ldloc (mb, conv_arg);
4762 if (klass == date_time_class) {
4764 mono_mb_emit_ldloc_addr (mb, conv_arg);
4766 mono_mb_emit_ldloc (mb, conv_arg);
4770 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4771 klass->blittable || klass->enumtype) {
4772 mono_mb_emit_ldarg (mb, argnum);
4775 mono_mb_emit_ldloc (mb, conv_arg);
4777 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4778 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4782 case MARSHAL_ACTION_CONV_OUT:
4783 if (klass == date_time_class) {
4784 /* Convert from an OLE DATE type */
4785 static MonoMethod *from_oadate;
4790 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4792 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4793 g_assert (from_oadate);
4795 mono_mb_emit_ldarg (mb, argnum);
4796 mono_mb_emit_ldloc (mb, conv_arg);
4797 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4798 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4803 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4804 klass->blittable || klass->enumtype)
4808 /* dst = argument */
4809 mono_mb_emit_ldarg (mb, argnum);
4810 mono_mb_emit_stloc (mb, 1);
4812 mono_mb_emit_ldloc (mb, 1);
4813 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4815 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4816 /* src = tmp_locals [i] */
4817 mono_mb_emit_ldloc (mb, conv_arg);
4818 mono_mb_emit_stloc (mb, 0);
4820 /* emit valuetype conversion code */
4821 emit_struct_conv (mb, klass, TRUE);
4825 emit_struct_free (mb, klass, conv_arg);
4828 mono_mb_patch_branch (mb, pos);
4831 case MARSHAL_ACTION_CONV_RESULT:
4832 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4834 mono_mb_emit_stloc (mb, 3);
4838 /* load pointer to returned value type */
4839 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4840 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4841 /* store the address of the source into local variable 0 */
4842 mono_mb_emit_stloc (mb, 0);
4844 mono_mb_emit_ldloc_addr (mb, 3);
4845 mono_mb_emit_stloc (mb, 1);
4847 /* emit valuetype conversion code */
4848 emit_struct_conv (mb, klass, TRUE);
4851 case MARSHAL_ACTION_MANAGED_CONV_IN:
4852 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4853 klass->blittable || klass->enumtype) {
4858 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
4860 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4864 mono_mb_emit_ldarg (mb, argnum);
4866 mono_mb_emit_ldarg_addr (mb, argnum);
4867 mono_mb_emit_stloc (mb, 0);
4870 mono_mb_emit_ldloc (mb, 0);
4871 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4874 mono_mb_emit_ldloc_addr (mb, conv_arg);
4875 mono_mb_emit_stloc (mb, 1);
4877 /* emit valuetype conversion code */
4878 emit_struct_conv (mb, klass, TRUE);
4881 mono_mb_patch_branch (mb, pos);
4884 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4885 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4886 klass->blittable || klass->enumtype) {
4890 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
4893 /* Check for null */
4894 mono_mb_emit_ldarg (mb, argnum);
4895 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4898 mono_mb_emit_ldloc_addr (mb, conv_arg);
4899 mono_mb_emit_stloc (mb, 0);
4902 mono_mb_emit_ldarg (mb, argnum);
4903 mono_mb_emit_stloc (mb, 1);
4905 /* emit valuetype conversion code */
4906 emit_struct_conv (mb, klass, FALSE);
4908 mono_mb_patch_branch (mb, pos2);
4911 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4912 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4913 klass->blittable || klass->enumtype) {
4914 mono_mb_emit_stloc (mb, 3);
4919 /* load pointer to returned value type */
4920 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4921 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4923 /* store the address of the source into local variable 0 */
4924 mono_mb_emit_stloc (mb, 0);
4925 /* allocate space for the native struct and
4926 * store the address into dst_ptr */
4927 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4928 m->retobj_class = klass;
4929 g_assert (m->retobj_var);
4930 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4931 mono_mb_emit_byte (mb, CEE_CONV_I);
4932 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
4933 mono_mb_emit_stloc (mb, 1);
4934 mono_mb_emit_ldloc (mb, 1);
4935 mono_mb_emit_stloc (mb, m->retobj_var);
4937 /* emit valuetype conversion code */
4938 emit_struct_conv (mb, klass, FALSE);
4942 g_assert_not_reached ();
4949 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
4950 MonoMarshalSpec *spec,
4951 int conv_arg, MonoType **conv_arg_type,
4952 MarshalAction action)
4956 case MARSHAL_ACTION_CONV_IN:
4957 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4959 case MARSHAL_ACTION_MANAGED_CONV_IN:
4960 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4964 MonoMethodBuilder *mb = m->mb;
4965 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
4966 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
4970 case MARSHAL_ACTION_CONV_IN:
4971 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4972 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4975 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4978 mono_mb_emit_ldarg (mb, argnum);
4979 mono_mb_emit_byte (mb, CEE_LDIND_I);
4981 mono_mb_emit_ldarg (mb, argnum);
4985 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4986 mono_mb_emit_exception_marshal_directive (mb, msg);
4988 mono_mb_emit_icall (mb, conv_to_icall (conv));
4990 mono_mb_emit_stloc (mb, conv_arg);
4994 case MARSHAL_ACTION_CONV_OUT:
4995 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4997 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4998 mono_mb_emit_exception_marshal_directive (mb, msg);
5002 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5003 static MonoMethod *m;
5006 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5011 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5012 mono_mb_emit_exception_marshal_directive (mb, msg);
5017 * Have to allocate a new string with the same length as the original, and
5018 * copy the contents of the buffer pointed to by CONV_ARG into it.
5020 g_assert (t->byref);
5021 mono_mb_emit_ldarg (mb, argnum);
5022 mono_mb_emit_ldloc (mb, conv_arg);
5023 mono_mb_emit_ldarg (mb, argnum);
5024 mono_mb_emit_byte (mb, CEE_LDIND_I);
5025 mono_mb_emit_managed_call (mb, m, NULL);
5026 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5027 mono_mb_emit_byte (mb, CEE_STIND_REF);
5028 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5029 mono_mb_emit_ldarg (mb, argnum);
5030 mono_mb_emit_ldloc (mb, conv_arg);
5031 mono_mb_emit_icall (mb, conv_to_icall (conv));
5032 mono_mb_emit_byte (mb, CEE_STIND_REF);
5037 mono_mb_emit_ldloc (mb, conv_arg);
5038 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5039 mono_mb_emit_icall (mb, mono_free_bstr);
5041 mono_mb_emit_icall (mb, mono_marshal_free);
5045 case MARSHAL_ACTION_PUSH:
5046 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5047 mono_mb_emit_ldloc_addr (mb, conv_arg);
5049 mono_mb_emit_ldloc (mb, conv_arg);
5052 case MARSHAL_ACTION_CONV_RESULT:
5053 mono_mb_emit_stloc (mb, 0);
5055 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5057 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5058 mono_mb_emit_exception_marshal_directive (mb, msg);
5062 mono_mb_emit_ldloc (mb, 0);
5063 mono_mb_emit_icall (mb, conv_to_icall (conv));
5064 mono_mb_emit_stloc (mb, 3);
5066 /* free the string */
5067 mono_mb_emit_ldloc (mb, 0);
5068 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5069 mono_mb_emit_icall (mb, mono_free_bstr);
5071 mono_mb_emit_icall (mb, mono_marshal_free);
5074 case MARSHAL_ACTION_MANAGED_CONV_IN:
5075 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5077 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5080 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5084 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5086 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5087 mono_mb_emit_exception_marshal_directive (mb, msg);
5091 mono_mb_emit_ldarg (mb, argnum);
5093 mono_mb_emit_byte (mb, CEE_LDIND_I);
5094 mono_mb_emit_icall (mb, conv_to_icall (conv));
5095 mono_mb_emit_stloc (mb, conv_arg);
5098 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5101 mono_mb_emit_ldarg (mb, argnum);
5102 mono_mb_emit_ldloc (mb, conv_arg);
5103 mono_mb_emit_icall (mb, conv_to_icall (conv));
5104 mono_mb_emit_byte (mb, CEE_STIND_I);
5109 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5110 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
5111 /* We need to make a copy so the caller is able to free it */
5112 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5114 mono_mb_emit_icall (mb, conv_to_icall (conv));
5115 mono_mb_emit_stloc (mb, 3);
5119 g_assert_not_reached ();
5127 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5128 MonoMarshalSpec *spec, int conv_arg,
5129 MonoType **conv_arg_type, MarshalAction action)
5132 if (action == MARSHAL_ACTION_CONV_IN)
5133 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5135 MonoMethodBuilder *mb = m->mb;
5138 case MARSHAL_ACTION_CONV_IN: {
5139 MonoType *intptr_type;
5140 int dar_release_slot, pos;
5142 intptr_type = &mono_defaults.int_class->byval_arg;
5143 conv_arg = mono_mb_add_local (mb, intptr_type);
5144 *conv_arg_type = intptr_type;
5146 if (!sh_dangerous_add_ref)
5147 init_safe_handle ();
5149 mono_mb_emit_ldarg (mb, argnum);
5150 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5151 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5153 mono_mb_patch_branch (mb, pos);
5156 * My tests in show that ref SafeHandles are not really
5157 * passed as ref objects. Instead a NULL is passed as the
5160 mono_mb_emit_icon (mb, 0);
5161 mono_mb_emit_stloc (mb, conv_arg);
5165 /* Create local to hold the ref parameter to DangerousAddRef */
5166 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5168 /* set release = false; */
5169 mono_mb_emit_icon (mb, 0);
5170 mono_mb_emit_stloc (mb, dar_release_slot);
5172 /* safehandle.DangerousAddRef (ref release) */
5173 mono_mb_emit_ldarg (mb, argnum);
5174 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5175 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5177 /* Pull the handle field from SafeHandle */
5178 mono_mb_emit_ldarg (mb, argnum);
5179 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5180 mono_mb_emit_byte (mb, CEE_LDIND_I);
5181 mono_mb_emit_stloc (mb, conv_arg);
5186 case MARSHAL_ACTION_PUSH:
5188 mono_mb_emit_ldloc_addr (mb, conv_arg);
5190 mono_mb_emit_ldloc (mb, conv_arg);
5193 case MARSHAL_ACTION_CONV_OUT: {
5194 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5195 int dar_release_slot = conv_arg + 1;
5198 if (!sh_dangerous_release)
5199 init_safe_handle ();
5205 * My tests indicate that ref SafeHandles parameters are not actually
5206 * passed by ref, but instead a new Handle is created regardless of
5207 * whether a change happens in the unmanaged side.
5209 * Also, the Handle is created before calling into unmanaged code,
5210 * but we do not support that mechanism (getting to the original
5211 * handle) and it makes no difference where we create this
5213 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5215 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5218 /* refval = new SafeHandleDerived ()*/
5219 mono_mb_emit_ldarg (mb, argnum);
5220 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5221 mono_mb_emit_byte (mb, CEE_STIND_REF);
5223 /* refval.handle = returned_handle */
5224 mono_mb_emit_ldarg (mb, argnum);
5225 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5226 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5227 mono_mb_emit_ldloc (mb, conv_arg);
5228 mono_mb_emit_byte (mb, CEE_STIND_I);
5230 mono_mb_emit_ldloc (mb, dar_release_slot);
5231 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5232 mono_mb_emit_ldarg (mb, argnum);
5233 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5234 mono_mb_patch_branch (mb, label_next);
5239 case MARSHAL_ACTION_CONV_RESULT: {
5240 MonoMethod *ctor = NULL;
5241 int intptr_handle_slot;
5243 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5244 mono_mb_emit_byte (mb, CEE_POP);
5245 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5249 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5251 mono_mb_emit_byte (mb, CEE_POP);
5252 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5255 /* Store the IntPtr results into a local */
5256 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5257 mono_mb_emit_stloc (mb, intptr_handle_slot);
5259 /* Create return value */
5260 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5261 mono_mb_emit_stloc (mb, 3);
5263 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5264 mono_mb_emit_ldloc (mb, 3);
5265 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5266 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5267 mono_mb_emit_byte (mb, CEE_STIND_I);
5271 case MARSHAL_ACTION_MANAGED_CONV_IN:
5272 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5275 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5276 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5279 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5280 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5283 printf ("Unhandled case for MarshalAction: %d\n", action);
5291 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5292 MonoMarshalSpec *spec, int conv_arg,
5293 MonoType **conv_arg_type, MarshalAction action)
5296 if (action == MARSHAL_ACTION_CONV_IN)
5297 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5299 MonoMethodBuilder *mb = m->mb;
5302 case MARSHAL_ACTION_CONV_IN: {
5303 MonoType *intptr_type;
5305 intptr_type = &mono_defaults.int_class->byval_arg;
5306 conv_arg = mono_mb_add_local (mb, intptr_type);
5307 *conv_arg_type = intptr_type;
5310 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5311 mono_mb_emit_exception_marshal_directive (mb, msg);
5314 mono_mb_emit_ldarg_addr (mb, argnum);
5315 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5316 mono_mb_emit_byte (mb, CEE_ADD);
5317 mono_mb_emit_byte (mb, CEE_LDIND_I);
5318 mono_mb_emit_stloc (mb, conv_arg);
5322 case MARSHAL_ACTION_PUSH:
5323 mono_mb_emit_ldloc (mb, conv_arg);
5326 case MARSHAL_ACTION_CONV_OUT: {
5327 /* no resource release required */
5331 case MARSHAL_ACTION_CONV_RESULT: {
5332 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5333 mono_mb_emit_exception_marshal_directive (mb, msg);
5337 case MARSHAL_ACTION_MANAGED_CONV_IN:
5338 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5341 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5342 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5345 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5346 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5349 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5357 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5358 MonoMarshalSpec *spec,
5359 int conv_arg, MonoType **conv_arg_type,
5360 MarshalAction action)
5363 if (action == MARSHAL_ACTION_CONV_IN)
5364 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5366 MonoMethodBuilder *mb = m->mb;
5367 MonoClass *klass = mono_class_from_mono_type (t);
5371 case MARSHAL_ACTION_CONV_IN:
5372 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5373 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5375 m->orig_conv_args [argnum] = 0;
5377 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5378 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5379 mono_mb_emit_exception_marshal_directive (mb, msg);
5383 if (klass->delegate) {
5385 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5386 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5387 mono_mb_emit_exception_marshal_directive (mb, msg);
5389 mono_mb_emit_byte (mb, CEE_LDNULL);
5390 mono_mb_emit_stloc (mb, conv_arg);
5392 mono_mb_emit_ldarg (mb, argnum);
5393 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5394 mono_mb_emit_stloc (mb, conv_arg);
5396 } else if (klass == mono_defaults.stringbuilder_class) {
5397 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5398 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5402 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5403 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5404 mono_mb_emit_exception_marshal_directive (mb, msg);
5410 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5414 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5415 mono_mb_emit_exception_marshal_directive (mb, msg);
5419 mono_mb_emit_ldarg (mb, argnum);
5421 mono_mb_emit_byte (mb, CEE_LDIND_I);
5423 mono_mb_emit_icall (mb, conv_to_icall (conv));
5424 mono_mb_emit_stloc (mb, conv_arg);
5425 } else if (klass->blittable) {
5426 mono_mb_emit_byte (mb, CEE_LDNULL);
5427 mono_mb_emit_stloc (mb, conv_arg);
5429 mono_mb_emit_ldarg (mb, argnum);
5430 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5432 mono_mb_emit_ldarg (mb, argnum);
5433 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5434 mono_mb_emit_stloc (mb, conv_arg);
5436 mono_mb_patch_branch (mb, pos);
5439 mono_mb_emit_byte (mb, CEE_LDNULL);
5440 mono_mb_emit_stloc (mb, conv_arg);
5443 /* we dont need any conversions for out parameters */
5444 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5447 mono_mb_emit_ldarg (mb, argnum);
5448 mono_mb_emit_byte (mb, CEE_LDIND_I);
5451 mono_mb_emit_ldarg (mb, argnum);
5452 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5453 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5456 /* store the address of the source into local variable 0 */
5457 mono_mb_emit_stloc (mb, 0);
5458 mono_mb_emit_ldloc (mb, 0);
5459 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5461 /* allocate space for the native struct and store the address */
5462 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5463 mono_mb_emit_byte (mb, CEE_PREFIX1);
5464 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5465 mono_mb_emit_stloc (mb, conv_arg);
5468 /* Need to store the original buffer so we can free it later */
5469 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5470 mono_mb_emit_ldloc (mb, conv_arg);
5471 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5474 /* set the src_ptr */
5475 mono_mb_emit_ldloc (mb, 0);
5476 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5477 mono_mb_emit_stloc (mb, 0);
5480 mono_mb_emit_ldloc (mb, conv_arg);
5481 mono_mb_emit_stloc (mb, 1);
5483 /* emit valuetype conversion code */
5484 emit_struct_conv (mb, klass, FALSE);
5486 mono_mb_patch_branch (mb, pos);
5490 case MARSHAL_ACTION_CONV_OUT:
5491 if (klass == mono_defaults.stringbuilder_class) {
5493 MonoMarshalNative encoding;
5494 MonoMarshalConv conv;
5496 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5497 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5499 g_assert (encoding != -1);
5502 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5506 mono_mb_emit_ldarg (mb, argnum);
5507 mono_mb_emit_ldloc (mb, conv_arg);
5510 case MONO_NATIVE_LPWSTR:
5511 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5513 case MONO_NATIVE_LPSTR:
5514 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5517 g_assert_not_reached ();
5520 mono_mb_emit_byte (mb, CEE_STIND_REF);
5522 mono_mb_emit_ldarg (mb, argnum);
5523 mono_mb_emit_ldloc (mb, conv_arg);
5525 mono_mb_emit_icall (mb, conv_to_icall (conv));
5529 mono_mb_emit_ldloc (mb, conv_arg);
5530 mono_mb_emit_icall (mb, mono_marshal_free);
5535 if (klass->delegate) {
5537 mono_mb_emit_ldarg (mb, argnum);
5538 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5539 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5540 mono_mb_emit_ldloc (mb, conv_arg);
5541 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5542 mono_mb_emit_byte (mb, CEE_STIND_REF);
5547 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5548 /* allocate a new object */
5549 mono_mb_emit_ldarg (mb, argnum);
5550 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5551 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5552 mono_mb_emit_byte (mb, CEE_STIND_REF);
5555 /* dst = *argument */
5556 mono_mb_emit_ldarg (mb, argnum);
5559 mono_mb_emit_byte (mb, CEE_LDIND_I);
5561 mono_mb_emit_stloc (mb, 1);
5563 mono_mb_emit_ldloc (mb, 1);
5564 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5566 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5567 mono_mb_emit_ldloc (mb, 1);
5568 mono_mb_emit_icon (mb, sizeof (MonoObject));
5569 mono_mb_emit_byte (mb, CEE_ADD);
5570 mono_mb_emit_stloc (mb, 1);
5572 /* src = tmp_locals [i] */
5573 mono_mb_emit_ldloc (mb, conv_arg);
5574 mono_mb_emit_stloc (mb, 0);
5576 /* emit valuetype conversion code */
5577 emit_struct_conv (mb, klass, TRUE);
5579 /* Free the structure returned by the native code */
5580 emit_struct_free (mb, klass, conv_arg);
5582 if (m->orig_conv_args [argnum]) {
5584 * If the native function changed the pointer, then free
5585 * the original structure plus the new pointer.
5587 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5588 mono_mb_emit_ldloc (mb, conv_arg);
5589 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5591 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5592 g_assert (m->orig_conv_args [argnum]);
5594 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5597 mono_mb_emit_ldloc (mb, conv_arg);
5598 mono_mb_emit_icall (mb, mono_marshal_free);
5600 mono_mb_patch_branch (mb, pos2);
5604 /* Free the original structure passed to native code */
5605 emit_struct_free (mb, klass, conv_arg);
5607 mono_mb_patch_branch (mb, pos);
5610 case MARSHAL_ACTION_PUSH:
5612 mono_mb_emit_ldloc_addr (mb, conv_arg);
5614 mono_mb_emit_ldloc (mb, conv_arg);
5617 case MARSHAL_ACTION_CONV_RESULT:
5618 if (klass->delegate) {
5619 g_assert (!t->byref);
5620 mono_mb_emit_stloc (mb, 0);
5621 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5622 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5623 mono_mb_emit_ldloc (mb, 0);
5624 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5625 mono_mb_emit_stloc (mb, 3);
5628 mono_mb_emit_stloc (mb, 0);
5630 /* Make a copy since emit_conv modifies local 0 */
5631 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5632 mono_mb_emit_ldloc (mb, 0);
5633 mono_mb_emit_stloc (mb, loc);
5635 mono_mb_emit_byte (mb, CEE_LDNULL);
5636 mono_mb_emit_stloc (mb, 3);
5638 mono_mb_emit_ldloc (mb, 0);
5639 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5641 /* allocate result object */
5643 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5644 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5645 mono_mb_emit_stloc (mb, 3);
5649 mono_mb_emit_ldloc (mb, 3);
5650 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5651 mono_mb_emit_stloc (mb, 1);
5653 /* emit conversion code */
5654 emit_struct_conv (mb, klass, TRUE);
5656 emit_struct_free (mb, klass, loc);
5658 /* Free the pointer allocated by unmanaged code */
5659 mono_mb_emit_ldloc (mb, loc);
5660 mono_mb_emit_icall (mb, mono_marshal_free);
5661 mono_mb_patch_branch (mb, pos);
5665 case MARSHAL_ACTION_MANAGED_CONV_IN:
5666 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5668 if (klass->delegate) {
5669 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5670 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5671 mono_mb_emit_ldarg (mb, argnum);
5673 mono_mb_emit_byte (mb, CEE_LDIND_I);
5674 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5675 mono_mb_emit_stloc (mb, conv_arg);
5679 if (klass == mono_defaults.stringbuilder_class) {
5680 MonoMarshalNative encoding;
5682 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5685 g_assert (encoding == MONO_NATIVE_LPSTR);
5687 g_assert (!t->byref);
5688 g_assert (encoding != -1);
5690 mono_mb_emit_ldarg (mb, argnum);
5691 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5692 mono_mb_emit_stloc (mb, conv_arg);
5696 /* The class can not have an automatic layout */
5697 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5698 mono_mb_emit_auto_layout_exception (mb, klass);
5702 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5703 mono_mb_emit_byte (mb, CEE_LDNULL);
5704 mono_mb_emit_stloc (mb, conv_arg);
5709 mono_mb_emit_ldarg (mb, argnum);
5713 /* Check for NULL and raise an exception */
5714 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5716 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5718 mono_mb_patch_branch (mb, pos2);
5719 mono_mb_emit_ldarg (mb, argnum);
5720 mono_mb_emit_byte (mb, CEE_LDIND_I);
5723 mono_mb_emit_stloc (mb, 0);
5725 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5726 mono_mb_emit_stloc (mb, conv_arg);
5728 mono_mb_emit_ldloc (mb, 0);
5729 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5731 /* Create and set dst */
5732 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5733 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5734 mono_mb_emit_stloc (mb, conv_arg);
5735 mono_mb_emit_ldloc (mb, conv_arg);
5736 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5737 mono_mb_emit_stloc (mb, 1);
5739 /* emit valuetype conversion code */
5740 emit_struct_conv (mb, klass, TRUE);
5742 mono_mb_patch_branch (mb, pos);
5745 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5746 if (klass->delegate) {
5748 mono_mb_emit_ldarg (mb, argnum);
5749 mono_mb_emit_ldloc (mb, conv_arg);
5750 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5751 mono_mb_emit_byte (mb, CEE_STIND_I);
5757 /* Check for null */
5758 mono_mb_emit_ldloc (mb, conv_arg);
5759 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5760 mono_mb_emit_ldarg (mb, argnum);
5761 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5762 mono_mb_emit_byte (mb, CEE_STIND_REF);
5763 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5765 mono_mb_patch_branch (mb, pos);
5768 mono_mb_emit_ldloc (mb, conv_arg);
5769 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5770 mono_mb_emit_stloc (mb, 0);
5772 /* Allocate and set dest */
5773 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5774 mono_mb_emit_byte (mb, CEE_CONV_I);
5775 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5776 mono_mb_emit_stloc (mb, 1);
5778 /* Update argument pointer */
5779 mono_mb_emit_ldarg (mb, argnum);
5780 mono_mb_emit_ldloc (mb, 1);
5781 mono_mb_emit_byte (mb, CEE_STIND_I);
5783 /* emit valuetype conversion code */
5784 emit_struct_conv (mb, klass, FALSE);
5786 mono_mb_patch_branch (mb, pos2);
5787 } else if (klass == mono_defaults.stringbuilder_class) {
5788 // FIXME: What to do here ?
5790 /* byval [Out] marshalling */
5792 /* FIXME: Handle null */
5795 mono_mb_emit_ldloc (mb, conv_arg);
5796 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5797 mono_mb_emit_stloc (mb, 0);
5800 mono_mb_emit_ldarg (mb, argnum);
5801 mono_mb_emit_stloc (mb, 1);
5803 /* emit valuetype conversion code */
5804 emit_struct_conv (mb, klass, FALSE);
5808 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5809 if (klass->delegate) {
5810 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5811 mono_mb_emit_stloc (mb, 3);
5815 /* The class can not have an automatic layout */
5816 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5817 mono_mb_emit_auto_layout_exception (mb, klass);
5821 mono_mb_emit_stloc (mb, 0);
5822 /* Check for null */
5823 mono_mb_emit_ldloc (mb, 0);
5824 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5825 mono_mb_emit_byte (mb, CEE_LDNULL);
5826 mono_mb_emit_stloc (mb, 3);
5827 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5829 mono_mb_patch_branch (mb, pos);
5832 mono_mb_emit_ldloc (mb, 0);
5833 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5834 mono_mb_emit_stloc (mb, 0);
5836 /* Allocate and set dest */
5837 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5838 mono_mb_emit_byte (mb, CEE_CONV_I);
5839 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5840 mono_mb_emit_byte (mb, CEE_DUP);
5841 mono_mb_emit_stloc (mb, 1);
5842 mono_mb_emit_stloc (mb, 3);
5844 emit_struct_conv (mb, klass, FALSE);
5846 mono_mb_patch_branch (mb, pos2);
5850 g_assert_not_reached ();
5861 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
5862 MonoMarshalSpec *spec,
5863 int conv_arg, MonoType **conv_arg_type,
5864 MarshalAction action)
5866 MonoMethodBuilder *mb = m->mb;
5867 static MonoMethod *get_object_for_native_variant = NULL;
5868 static MonoMethod *get_native_variant_for_object = NULL;
5870 if (!get_object_for_native_variant)
5871 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
5872 g_assert (get_object_for_native_variant);
5874 if (!get_native_variant_for_object)
5875 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
5876 g_assert (get_native_variant_for_object);
5879 case MARSHAL_ACTION_CONV_IN: {
5880 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
5883 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5885 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5887 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5890 mono_mb_emit_ldarg (mb, argnum);
5892 mono_mb_emit_byte(mb, CEE_LDIND_REF);
5893 mono_mb_emit_ldloc_addr (mb, conv_arg);
5894 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5898 case MARSHAL_ACTION_CONV_OUT: {
5899 static MonoMethod *variant_clear = NULL;
5902 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
5903 g_assert (variant_clear);
5906 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5907 mono_mb_emit_ldarg (mb, argnum);
5908 mono_mb_emit_ldloc_addr (mb, conv_arg);
5909 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5910 mono_mb_emit_byte (mb, CEE_STIND_REF);
5913 mono_mb_emit_ldloc_addr (mb, conv_arg);
5914 mono_mb_emit_managed_call (mb, variant_clear, NULL);
5918 case MARSHAL_ACTION_PUSH:
5920 mono_mb_emit_ldloc_addr (mb, conv_arg);
5922 mono_mb_emit_ldloc (mb, conv_arg);
5925 case MARSHAL_ACTION_CONV_RESULT: {
5926 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5927 mono_mb_emit_exception_marshal_directive (mb, msg);
5931 case MARSHAL_ACTION_MANAGED_CONV_IN: {
5932 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5935 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5937 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5939 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5943 mono_mb_emit_ldarg (mb, argnum);
5945 mono_mb_emit_ldarg_addr (mb, argnum);
5946 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5947 mono_mb_emit_stloc (mb, conv_arg);
5951 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
5952 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5953 mono_mb_emit_ldloc (mb, conv_arg);
5954 mono_mb_emit_ldarg (mb, argnum);
5955 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5960 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
5961 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5962 mono_mb_emit_exception_marshal_directive (mb, msg);
5967 g_assert_not_reached ();
5973 #endif /* DISABLE_COM */
5974 #endif /* DISABLE_JIT */
5977 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
5979 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
5980 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
5982 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
5984 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
5996 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
5997 MonoMarshalSpec *spec,
5998 int conv_arg, MonoType **conv_arg_type,
5999 MarshalAction action)
6003 case MARSHAL_ACTION_CONV_IN:
6004 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6006 case MARSHAL_ACTION_MANAGED_CONV_IN:
6007 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6011 MonoMethodBuilder *mb = m->mb;
6012 MonoClass *klass = mono_class_from_mono_type (t);
6013 gboolean need_convert, need_free;
6014 MonoMarshalNative encoding;
6016 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6019 case MARSHAL_ACTION_CONV_IN:
6020 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6021 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6023 if (klass->element_class->blittable) {
6024 mono_mb_emit_ldarg (mb, argnum);
6026 mono_mb_emit_byte (mb, CEE_LDIND_I);
6027 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
6028 mono_mb_emit_stloc (mb, conv_arg);
6031 guint32 label1, label2, label3;
6032 int index_var, src_var, dest_ptr, esize;
6033 MonoMarshalConv conv;
6034 gboolean is_string = FALSE;
6036 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6038 eklass = klass->element_class;
6040 if (eklass == mono_defaults.string_class) {
6042 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6044 else if (eklass == mono_defaults.stringbuilder_class) {
6046 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6049 conv = (MonoMarshalConv)-1;
6051 if (is_string && conv == -1) {
6052 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6053 mono_mb_emit_exception_marshal_directive (mb, msg);
6057 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6058 mono_mb_emit_ldarg (mb, argnum);
6060 mono_mb_emit_byte (mb, CEE_LDIND_I);
6061 mono_mb_emit_stloc (mb, src_var);
6064 mono_mb_emit_ldloc (mb, src_var);
6065 mono_mb_emit_stloc (mb, conv_arg);
6066 mono_mb_emit_ldloc (mb, src_var);
6067 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6070 esize = sizeof (gpointer);
6071 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6072 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6074 esize = mono_class_native_size (eklass, NULL);
6076 /* allocate space for the native struct and store the address */
6077 mono_mb_emit_icon (mb, esize);
6078 mono_mb_emit_ldloc (mb, src_var);
6079 mono_mb_emit_byte (mb, CEE_LDLEN);
6081 if (eklass == mono_defaults.string_class) {
6082 /* Make the array bigger for the terminating null */
6083 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6084 mono_mb_emit_byte (mb, CEE_ADD);
6086 mono_mb_emit_byte (mb, CEE_MUL);
6087 mono_mb_emit_byte (mb, CEE_PREFIX1);
6088 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6089 mono_mb_emit_stloc (mb, conv_arg);
6091 mono_mb_emit_ldloc (mb, conv_arg);
6092 mono_mb_emit_stloc (mb, dest_ptr);
6094 /* Emit marshalling loop */
6095 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6096 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6097 mono_mb_emit_stloc (mb, index_var);
6098 label2 = mono_mb_get_label (mb);
6099 mono_mb_emit_ldloc (mb, index_var);
6100 mono_mb_emit_ldloc (mb, src_var);
6101 mono_mb_emit_byte (mb, CEE_LDLEN);
6102 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6104 /* Emit marshalling code */
6107 mono_mb_emit_ldloc (mb, dest_ptr);
6108 mono_mb_emit_ldloc (mb, src_var);
6109 mono_mb_emit_ldloc (mb, index_var);
6110 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6111 mono_mb_emit_icall (mb, conv_to_icall (conv));
6112 mono_mb_emit_byte (mb, CEE_STIND_I);
6114 /* set the src_ptr */
6115 mono_mb_emit_ldloc (mb, src_var);
6116 mono_mb_emit_ldloc (mb, index_var);
6117 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6118 mono_mb_emit_stloc (mb, 0);
6121 mono_mb_emit_ldloc (mb, dest_ptr);
6122 mono_mb_emit_stloc (mb, 1);
6124 /* emit valuetype conversion code */
6125 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6128 mono_mb_emit_add_to_local (mb, index_var, 1);
6129 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6131 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6133 mono_mb_patch_branch (mb, label3);
6135 if (eklass == mono_defaults.string_class) {
6136 /* Null terminate */
6137 mono_mb_emit_ldloc (mb, dest_ptr);
6138 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6139 mono_mb_emit_byte (mb, CEE_STIND_REF);
6142 mono_mb_patch_branch (mb, label1);
6147 case MARSHAL_ACTION_CONV_OUT:
6148 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6149 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);
6150 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6153 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6154 int param_num = spec->data.array_data.param_num;
6155 MonoType *param_type;
6157 param_type = m->sig->params [param_num];
6159 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6160 char *msg = g_strdup ("Not implemented.");
6161 mono_mb_emit_exception_marshal_directive (mb, msg);
6166 mono_mb_emit_ldarg (mb, argnum);
6168 /* Create the managed array */
6169 mono_mb_emit_ldarg (mb, param_num);
6170 if (m->sig->params [param_num]->byref)
6171 // FIXME: Support other types
6172 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6173 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6174 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6175 /* Store into argument */
6176 mono_mb_emit_byte (mb, CEE_STIND_I);
6180 if (need_convert || need_free) {
6181 /* FIXME: Optimize blittable case */
6183 guint32 label1, label2, label3;
6184 int index_var, src_ptr, loc, esize;
6186 eklass = klass->element_class;
6187 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6188 esize = sizeof (gpointer);
6189 else if (eklass == mono_defaults.char_class)
6190 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6192 esize = mono_class_native_size (eklass, NULL);
6193 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6194 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6197 mono_mb_emit_ldarg (mb, argnum);
6199 mono_mb_emit_byte (mb, CEE_LDIND_I);
6200 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6202 mono_mb_emit_ldloc (mb, conv_arg);
6203 mono_mb_emit_stloc (mb, src_ptr);
6205 /* Emit marshalling loop */
6206 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6207 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6208 mono_mb_emit_stloc (mb, index_var);
6209 label2 = mono_mb_get_label (mb);
6210 mono_mb_emit_ldloc (mb, index_var);
6211 mono_mb_emit_ldarg (mb, argnum);
6213 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6214 mono_mb_emit_byte (mb, CEE_LDLEN);
6215 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6217 /* Emit marshalling code */
6219 if (eklass == mono_defaults.stringbuilder_class) {
6220 gboolean need_free2;
6221 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6223 g_assert (conv != -1);
6226 mono_mb_emit_ldarg (mb, argnum);
6228 mono_mb_emit_byte (mb, CEE_LDIND_I);
6229 mono_mb_emit_ldloc (mb, index_var);
6230 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6233 mono_mb_emit_ldloc (mb, src_ptr);
6234 mono_mb_emit_byte (mb, CEE_LDIND_I);
6236 mono_mb_emit_icall (mb, conv_to_icall (conv));
6240 mono_mb_emit_ldloc (mb, src_ptr);
6241 mono_mb_emit_byte (mb, CEE_LDIND_I);
6243 mono_mb_emit_icall (mb, mono_marshal_free);
6246 else if (eklass == mono_defaults.string_class) {
6249 mono_mb_emit_ldloc (mb, src_ptr);
6250 mono_mb_emit_byte (mb, CEE_LDIND_I);
6252 mono_mb_emit_icall (mb, mono_marshal_free);
6257 /* set the src_ptr */
6258 mono_mb_emit_ldloc (mb, src_ptr);
6259 mono_mb_emit_stloc (mb, 0);
6262 mono_mb_emit_ldarg (mb, argnum);
6264 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6265 mono_mb_emit_ldloc (mb, index_var);
6266 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6267 mono_mb_emit_stloc (mb, 1);
6269 /* emit valuetype conversion code */
6270 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6274 mono_mb_emit_ldloc (mb, src_ptr);
6275 mono_mb_emit_stloc (mb, loc);
6276 mono_mb_emit_ldloc (mb, loc);
6278 emit_struct_free (mb, eklass, loc);
6282 mono_mb_emit_add_to_local (mb, index_var, 1);
6283 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6285 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6287 mono_mb_patch_branch (mb, label1);
6288 mono_mb_patch_branch (mb, label3);
6291 if (klass->element_class->blittable) {
6292 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6294 mono_mb_emit_ldarg (mb, argnum);
6296 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6297 mono_mb_emit_ldloc (mb, conv_arg);
6298 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
6303 case MARSHAL_ACTION_PUSH:
6305 mono_mb_emit_ldloc_addr (mb, conv_arg);
6307 mono_mb_emit_ldloc (mb, conv_arg);
6310 case MARSHAL_ACTION_CONV_RESULT:
6311 /* fixme: we need conversions here */
6312 mono_mb_emit_stloc (mb, 3);
6315 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6317 guint32 label1, label2, label3;
6318 int index_var, src_ptr, esize, param_num, num_elem;
6319 MonoMarshalConv conv;
6320 gboolean is_string = FALSE;
6322 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6323 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6326 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6327 mono_mb_emit_exception_marshal_directive (mb, msg);
6331 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6332 mono_mb_emit_exception_marshal_directive (mb, msg);
6335 if (spec->native != MONO_NATIVE_LPARRAY) {
6336 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6337 mono_mb_emit_exception_marshal_directive (mb, msg);
6341 /* FIXME: t is from the method which is wrapped, not the delegate type */
6342 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6344 param_num = spec->data.array_data.param_num;
6345 num_elem = spec->data.array_data.num_elem;
6346 if (spec->data.array_data.elem_mult == 0)
6347 /* param_num is not specified */
6350 if (param_num == -1) {
6351 if (num_elem <= 0) {
6352 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6353 mono_mb_emit_exception_marshal_directive (mb, msg);
6358 /* FIXME: Optimize blittable case */
6360 eklass = klass->element_class;
6361 if (eklass == mono_defaults.string_class) {
6363 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6365 else if (eklass == mono_defaults.stringbuilder_class) {
6367 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6370 conv = (MonoMarshalConv)-1;
6372 mono_marshal_load_type_info (eklass);
6375 esize = sizeof (gpointer);
6377 esize = mono_class_native_size (eklass, NULL);
6378 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6380 mono_mb_emit_byte (mb, CEE_LDNULL);
6381 mono_mb_emit_stloc (mb, conv_arg);
6383 /* Check param index */
6384 if (param_num != -1) {
6385 if (param_num >= m->sig->param_count) {
6386 char *msg = g_strdup ("Array size control parameter index is out of range.");
6387 mono_mb_emit_exception_marshal_directive (mb, msg);
6390 switch (m->sig->params [param_num]->type) {
6403 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6404 mono_mb_emit_exception_marshal_directive (mb, msg);
6411 mono_mb_emit_ldarg (mb, argnum);
6412 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6414 mono_mb_emit_ldarg (mb, argnum);
6415 mono_mb_emit_stloc (mb, src_ptr);
6417 /* Create managed array */
6419 * The LPArray marshalling spec says that sometimes param_num starts
6420 * from 1, sometimes it starts from 0. But MS seems to allways start
6424 if (param_num == -1) {
6425 mono_mb_emit_icon (mb, num_elem);
6427 mono_mb_emit_ldarg (mb, param_num);
6429 mono_mb_emit_icon (mb, num_elem);
6430 mono_mb_emit_byte (mb, CEE_ADD);
6432 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6435 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6436 mono_mb_emit_stloc (mb, conv_arg);
6438 if (eklass->blittable) {
6439 mono_mb_emit_ldloc (mb, conv_arg);
6440 mono_mb_emit_byte (mb, CEE_CONV_I);
6441 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6442 mono_mb_emit_byte (mb, CEE_ADD);
6443 mono_mb_emit_ldarg (mb, argnum);
6444 mono_mb_emit_ldloc (mb, conv_arg);
6445 mono_mb_emit_byte (mb, CEE_LDLEN);
6446 mono_mb_emit_icon (mb, esize);
6447 mono_mb_emit_byte (mb, CEE_MUL);
6448 mono_mb_emit_byte (mb, CEE_PREFIX1);
6449 mono_mb_emit_byte (mb, CEE_CPBLK);
6453 /* Emit marshalling loop */
6454 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6455 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6456 mono_mb_emit_stloc (mb, index_var);
6457 label2 = mono_mb_get_label (mb);
6458 mono_mb_emit_ldloc (mb, index_var);
6459 mono_mb_emit_ldloc (mb, conv_arg);
6460 mono_mb_emit_byte (mb, CEE_LDLEN);
6461 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6463 /* Emit marshalling code */
6465 g_assert (conv != -1);
6467 mono_mb_emit_ldloc (mb, conv_arg);
6468 mono_mb_emit_ldloc (mb, index_var);
6470 mono_mb_emit_ldloc (mb, src_ptr);
6471 mono_mb_emit_byte (mb, CEE_LDIND_I);
6473 mono_mb_emit_icall (mb, conv_to_icall (conv));
6474 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6477 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6478 mono_mb_emit_exception_marshal_directive (mb, msg);
6482 mono_mb_emit_add_to_local (mb, index_var, 1);
6483 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6485 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6487 mono_mb_patch_branch (mb, label1);
6488 mono_mb_patch_branch (mb, label3);
6492 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6494 guint32 label1, label2, label3;
6495 int index_var, dest_ptr, esize, param_num, num_elem;
6496 MonoMarshalConv conv;
6497 gboolean is_string = FALSE;
6500 /* Already handled in CONV_IN */
6503 /* These are already checked in CONV_IN */
6504 g_assert (!t->byref);
6505 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6506 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6508 param_num = spec->data.array_data.param_num;
6509 num_elem = spec->data.array_data.num_elem;
6511 if (spec->data.array_data.elem_mult == 0)
6512 /* param_num is not specified */
6515 if (param_num == -1) {
6516 if (num_elem <= 0) {
6517 g_assert_not_reached ();
6521 /* FIXME: Optimize blittable case */
6523 eklass = klass->element_class;
6524 if (eklass == mono_defaults.string_class) {
6526 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6528 else if (eklass == mono_defaults.stringbuilder_class) {
6530 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6533 conv = (MonoMarshalConv)-1;
6535 mono_marshal_load_type_info (eklass);
6538 esize = sizeof (gpointer);
6540 esize = mono_class_native_size (eklass, NULL);
6542 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6545 mono_mb_emit_ldloc (mb, conv_arg);
6546 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6548 mono_mb_emit_ldarg (mb, argnum);
6549 mono_mb_emit_stloc (mb, dest_ptr);
6551 if (eklass->blittable) {
6553 mono_mb_emit_ldarg (mb, argnum);
6555 mono_mb_emit_ldloc (mb, conv_arg);
6556 mono_mb_emit_byte (mb, CEE_CONV_I);
6557 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6558 mono_mb_emit_byte (mb, CEE_ADD);
6560 mono_mb_emit_ldloc (mb, conv_arg);
6561 mono_mb_emit_byte (mb, CEE_LDLEN);
6562 mono_mb_emit_icon (mb, esize);
6563 mono_mb_emit_byte (mb, CEE_MUL);
6564 mono_mb_emit_byte (mb, CEE_PREFIX1);
6565 mono_mb_emit_byte (mb, CEE_CPBLK);
6569 /* Emit marshalling loop */
6570 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6571 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6572 mono_mb_emit_stloc (mb, index_var);
6573 label2 = mono_mb_get_label (mb);
6574 mono_mb_emit_ldloc (mb, index_var);
6575 mono_mb_emit_ldloc (mb, conv_arg);
6576 mono_mb_emit_byte (mb, CEE_LDLEN);
6577 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6579 /* Emit marshalling code */
6581 g_assert (conv != -1);
6584 mono_mb_emit_ldloc (mb, dest_ptr);
6587 mono_mb_emit_ldloc (mb, conv_arg);
6588 mono_mb_emit_ldloc (mb, index_var);
6590 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6592 mono_mb_emit_icall (mb, conv_to_icall (conv));
6593 mono_mb_emit_byte (mb, CEE_STIND_I);
6596 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6597 mono_mb_emit_exception_marshal_directive (mb, msg);
6601 mono_mb_emit_add_to_local (mb, index_var, 1);
6602 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6604 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6606 mono_mb_patch_branch (mb, label1);
6607 mono_mb_patch_branch (mb, label3);
6611 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6613 guint32 label1, label2, label3;
6614 int index_var, src, dest, esize;
6615 MonoMarshalConv conv = (MonoMarshalConv)-1;
6616 gboolean is_string = FALSE;
6618 g_assert (!t->byref);
6620 eklass = klass->element_class;
6622 mono_marshal_load_type_info (eklass);
6624 if (eklass == mono_defaults.string_class) {
6626 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6629 g_assert_not_reached ();
6633 esize = sizeof (gpointer);
6634 else if (eklass == mono_defaults.char_class)
6635 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6637 esize = mono_class_native_size (eklass, NULL);
6639 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6640 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6642 mono_mb_emit_stloc (mb, src);
6643 mono_mb_emit_ldloc (mb, src);
6644 mono_mb_emit_stloc (mb, 3);
6646 /* Check for null */
6647 mono_mb_emit_ldloc (mb, src);
6648 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6650 /* Allocate native array */
6651 mono_mb_emit_icon (mb, esize);
6652 mono_mb_emit_ldloc (mb, src);
6653 mono_mb_emit_byte (mb, CEE_LDLEN);
6655 if (eklass == mono_defaults.string_class) {
6656 /* Make the array bigger for the terminating null */
6657 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6658 mono_mb_emit_byte (mb, CEE_ADD);
6660 mono_mb_emit_byte (mb, CEE_MUL);
6661 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6662 mono_mb_emit_stloc (mb, dest);
6663 mono_mb_emit_ldloc (mb, dest);
6664 mono_mb_emit_stloc (mb, 3);
6666 /* Emit marshalling loop */
6667 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6668 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6669 mono_mb_emit_stloc (mb, index_var);
6670 label2 = mono_mb_get_label (mb);
6671 mono_mb_emit_ldloc (mb, index_var);
6672 mono_mb_emit_ldloc (mb, src);
6673 mono_mb_emit_byte (mb, CEE_LDLEN);
6674 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6676 /* Emit marshalling code */
6678 g_assert (conv != -1);
6681 mono_mb_emit_ldloc (mb, dest);
6684 mono_mb_emit_ldloc (mb, src);
6685 mono_mb_emit_ldloc (mb, index_var);
6687 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6689 mono_mb_emit_icall (mb, conv_to_icall (conv));
6690 mono_mb_emit_byte (mb, CEE_STIND_I);
6693 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6694 mono_mb_emit_exception_marshal_directive (mb, msg);
6698 mono_mb_emit_add_to_local (mb, index_var, 1);
6699 mono_mb_emit_add_to_local (mb, dest, esize);
6701 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6703 mono_mb_patch_branch (mb, label3);
6704 mono_mb_patch_branch (mb, label1);
6708 g_assert_not_reached ();
6715 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6718 return &mono_defaults.int32_class->byval_arg;
6720 switch (spec->native) {
6721 case MONO_NATIVE_I1:
6722 case MONO_NATIVE_U1:
6723 return &mono_defaults.byte_class->byval_arg;
6724 case MONO_NATIVE_VARIANTBOOL:
6725 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6726 return &mono_defaults.int16_class->byval_arg;
6727 case MONO_NATIVE_BOOLEAN:
6728 return &mono_defaults.int32_class->byval_arg;
6730 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6731 return &mono_defaults.int32_class->byval_arg;
6737 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6739 MonoClass* conv_arg_class = mono_defaults.int32_class;
6741 switch (spec->native) {
6742 case MONO_NATIVE_I1:
6743 case MONO_NATIVE_U1:
6744 conv_arg_class = mono_defaults.byte_class;
6745 if (ldop) *ldop = CEE_LDIND_I1;
6747 case MONO_NATIVE_VARIANTBOOL:
6748 conv_arg_class = mono_defaults.int16_class;
6749 if (ldop) *ldop = CEE_LDIND_I2;
6751 case MONO_NATIVE_BOOLEAN:
6754 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6757 return conv_arg_class;
6761 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6762 MonoMarshalSpec *spec,
6763 int conv_arg, MonoType **conv_arg_type,
6764 MarshalAction action)
6768 case MARSHAL_ACTION_CONV_IN:
6770 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6772 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6775 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6776 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6778 *conv_arg_type = &conv_arg_class->this_arg;
6780 *conv_arg_type = &conv_arg_class->byval_arg;
6786 MonoMethodBuilder *mb = m->mb;
6789 case MARSHAL_ACTION_CONV_IN: {
6790 MonoType *local_type;
6792 guint8 ldc_op = CEE_LDC_I4_1;
6794 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6796 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6798 *conv_arg_type = local_type;
6799 conv_arg = mono_mb_add_local (mb, local_type);
6801 mono_mb_emit_ldarg (mb, argnum);
6803 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6804 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6805 mono_mb_emit_byte (mb, ldc_op);
6806 mono_mb_emit_stloc (mb, conv_arg);
6807 mono_mb_patch_branch (mb, label_false);
6812 case MARSHAL_ACTION_CONV_OUT:
6814 int label_false, label_end;
6818 mono_mb_emit_ldarg (mb, argnum);
6819 mono_mb_emit_ldloc (mb, conv_arg);
6821 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6822 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6824 label_end = mono_mb_emit_branch (mb, CEE_BR);
6825 mono_mb_patch_branch (mb, label_false);
6826 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6827 mono_mb_patch_branch (mb, label_end);
6829 mono_mb_emit_byte (mb, CEE_STIND_I1);
6833 case MARSHAL_ACTION_PUSH:
6835 mono_mb_emit_ldloc_addr (mb, conv_arg);
6837 mono_mb_emit_ldloc (mb, conv_arg);
6839 mono_mb_emit_ldarg (mb, argnum);
6842 case MARSHAL_ACTION_CONV_RESULT:
6843 /* maybe we need to make sure that it fits within 8 bits */
6844 mono_mb_emit_stloc (mb, 3);
6847 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6848 MonoClass* conv_arg_class = mono_defaults.int32_class;
6849 guint8 ldop = CEE_LDIND_I4;
6850 int label_null, label_false;
6852 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
6853 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6856 *conv_arg_type = &conv_arg_class->this_arg;
6858 *conv_arg_type = &conv_arg_class->byval_arg;
6861 mono_mb_emit_ldarg (mb, argnum);
6865 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6866 mono_mb_emit_ldarg (mb, argnum);
6867 mono_mb_emit_byte (mb, ldop);
6871 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6872 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6873 mono_mb_emit_stloc (mb, conv_arg);
6874 mono_mb_patch_branch (mb, label_false);
6877 mono_mb_patch_branch (mb, label_null);
6881 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6882 guint8 stop = CEE_STIND_I4;
6883 guint8 ldc_op = CEE_LDC_I4_1;
6884 int label_null,label_false, label_end;;
6889 switch (spec->native) {
6890 case MONO_NATIVE_I1:
6891 case MONO_NATIVE_U1:
6892 stop = CEE_STIND_I1;
6894 case MONO_NATIVE_VARIANTBOOL:
6895 stop = CEE_STIND_I2;
6896 ldc_op = CEE_LDC_I4_M1;
6904 mono_mb_emit_ldarg (mb, argnum);
6905 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6907 mono_mb_emit_ldarg (mb, argnum);
6908 mono_mb_emit_ldloc (mb, conv_arg);
6910 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6911 mono_mb_emit_byte (mb, ldc_op);
6912 label_end = mono_mb_emit_branch (mb, CEE_BR);
6914 mono_mb_patch_branch (mb, label_false);
6915 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6916 mono_mb_patch_branch (mb, label_end);
6918 mono_mb_emit_byte (mb, stop);
6919 mono_mb_patch_branch (mb, label_null);
6924 g_assert_not_reached ();
6931 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
6932 MonoMarshalSpec *spec, int conv_arg,
6933 MonoType **conv_arg_type, MarshalAction action)
6936 MonoMethodBuilder *mb = m->mb;
6939 case MARSHAL_ACTION_CONV_IN:
6940 /* MS seems to allow this in some cases, ie. bxc #158 */
6942 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
6943 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
6944 mono_mb_emit_exception_marshal_directive (m->mb, msg);
6949 case MARSHAL_ACTION_PUSH:
6950 mono_mb_emit_ldarg (mb, argnum);
6953 case MARSHAL_ACTION_CONV_RESULT:
6954 /* no conversions necessary */
6955 mono_mb_emit_stloc (mb, 3);
6966 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
6967 MonoMarshalSpec *spec, int conv_arg,
6968 MonoType **conv_arg_type, MarshalAction action)
6971 MonoMethodBuilder *mb = m->mb;
6974 case MARSHAL_ACTION_PUSH:
6975 /* fixme: dont know how to marshal that. We cant simply
6976 * convert it to a one byte UTF8 character, because an
6977 * unicode character may need more that one byte in UTF8 */
6978 mono_mb_emit_ldarg (mb, argnum);
6981 case MARSHAL_ACTION_CONV_RESULT:
6982 /* fixme: we need conversions here */
6983 mono_mb_emit_stloc (mb, 3);
6994 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
6995 MonoMarshalSpec *spec, int conv_arg,
6996 MonoType **conv_arg_type, MarshalAction action)
6999 MonoMethodBuilder *mb = m->mb;
7002 case MARSHAL_ACTION_PUSH:
7003 mono_mb_emit_ldarg (mb, argnum);
7006 case MARSHAL_ACTION_CONV_RESULT:
7007 /* no conversions necessary */
7008 mono_mb_emit_stloc (mb, 3);
7019 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7020 MonoMarshalSpec *spec, int conv_arg,
7021 MonoType **conv_arg_type, MarshalAction action)
7023 /* Ensure that we have marshalling info for this param */
7024 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7026 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7027 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7029 if (spec && spec->native == MONO_NATIVE_ASANY)
7030 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7033 case MONO_TYPE_VALUETYPE:
7034 if (t->data.klass == mono_defaults.handleref_class)
7035 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7037 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7038 case MONO_TYPE_STRING:
7039 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7040 case MONO_TYPE_CLASS:
7041 case MONO_TYPE_OBJECT:
7043 if (spec && spec->native == MONO_NATIVE_STRUCT)
7044 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7046 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7047 spec->native == MONO_NATIVE_IDISPATCH ||
7048 spec->native == MONO_NATIVE_INTERFACE))
7049 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7050 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7051 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7052 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7053 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7056 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
7057 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
7058 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7060 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7061 case MONO_TYPE_ARRAY:
7062 case MONO_TYPE_SZARRAY:
7063 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7064 case MONO_TYPE_BOOLEAN:
7065 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7067 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7068 case MONO_TYPE_CHAR:
7069 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7082 case MONO_TYPE_FNPTR:
7083 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7084 case MONO_TYPE_GENERICINST:
7085 if (mono_type_generic_inst_is_valuetype (t))
7086 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7088 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7096 * mono_marshal_emit_native_wrapper:
7097 * @image: the image to use for looking up custom marshallers
7098 * @sig: The signature of the native function
7099 * @piinfo: Marshalling information
7100 * @mspecs: Marshalling information
7101 * @aot: whenever the created method will be compiled by the AOT compiler
7102 * @method: if non-NULL, the pinvoke method to call
7103 * @check_exceptions: Whenever to check for pending exceptions after the native call
7104 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7106 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7109 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)
7111 EmitMarshalContext m;
7112 MonoMethodSignature *csig;
7114 int i, argnum, *tmp_locals;
7115 int type, param_shift = 0;
7116 static MonoMethodSignature *get_last_error_sig = NULL;
7117 int coop_gc_stack_dummy, coop_gc_var;
7119 memset (&m, 0, sizeof (m));
7124 /* we copy the signature, so that we can set pinvoke to 0 */
7126 /* The function address is passed as the first argument */
7127 g_assert (!sig->hasthis);
7130 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7138 /* we allocate local for use with emit_struct_conv() */
7139 /* allocate local 0 (pointer) src_ptr */
7140 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7141 /* allocate local 1 (pointer) dst_ptr */
7142 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7143 /* allocate local 2 (boolean) delete_old */
7144 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7146 /* delete_old = FALSE */
7147 mono_mb_emit_icon (mb, 0);
7148 mono_mb_emit_stloc (mb, 2);
7150 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7151 /* allocate local 3 to store the return value */
7152 mono_mb_add_local (mb, sig->ret);
7155 if (mono_threads_is_coop_enabled ()) {
7156 /* local 4, dummy local used to get a stack address for suspend funcs */
7157 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7158 /* local 5, the local to be used when calling the suspend funcs */
7159 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7162 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7163 /* Return type custom marshaling */
7165 * Since we can't determine the return type of the unmanaged function,
7166 * we assume it returns a pointer, and pass that pointer to
7167 * MarshalNativeToManaged.
7169 csig->ret = &mono_defaults.int_class->byval_arg;
7172 /* we first do all conversions */
7173 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7174 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7176 for (i = 0; i < sig->param_count; i ++) {
7177 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7180 /* push all arguments */
7183 mono_mb_emit_byte (mb, CEE_LDARG_0);
7185 for (i = 0; i < sig->param_count; i++) {
7186 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7189 if (mono_threads_is_coop_enabled ()) {
7190 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7191 mono_mb_emit_icall (mb, mono_threads_prepare_blocking);
7192 mono_mb_emit_stloc (mb, coop_gc_var);
7195 /* call the native method */
7197 mono_mb_emit_byte (mb, CEE_LDARG_0);
7198 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7199 mono_mb_emit_byte (mb, CEE_LDIND_I);
7200 mono_mb_emit_calli (mb, csig);
7201 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7203 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7205 g_assert_not_reached ();
7210 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7211 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7212 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7213 mono_mb_emit_calli (mb, csig);
7215 mono_mb_emit_native_call (mb, csig, func);
7219 /* Set LastError if needed */
7220 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7221 if (!get_last_error_sig) {
7222 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7223 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7224 get_last_error_sig->pinvoke = 1;
7229 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7230 * clobber its value.
7232 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7233 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7235 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7239 if (mono_threads_is_coop_enabled ()) {
7240 mono_mb_emit_ldloc (mb, coop_gc_var);
7241 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7242 mono_mb_emit_icall (mb, mono_threads_finish_blocking);
7245 /* convert the result */
7246 if (!sig->ret->byref) {
7247 MonoMarshalSpec *spec = mspecs [0];
7248 type = sig->ret->type;
7250 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7251 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7256 case MONO_TYPE_VOID:
7258 case MONO_TYPE_VALUETYPE:
7259 klass = sig->ret->data.klass;
7260 if (klass->enumtype) {
7261 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7264 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7278 case MONO_TYPE_FNPTR:
7279 case MONO_TYPE_STRING:
7280 case MONO_TYPE_CLASS:
7281 case MONO_TYPE_OBJECT:
7282 case MONO_TYPE_BOOLEAN:
7283 case MONO_TYPE_ARRAY:
7284 case MONO_TYPE_SZARRAY:
7285 case MONO_TYPE_CHAR:
7287 case MONO_TYPE_GENERICINST:
7288 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7290 case MONO_TYPE_TYPEDBYREF:
7292 g_warning ("return type 0x%02x unknown", sig->ret->type);
7293 g_assert_not_reached ();
7297 mono_mb_emit_stloc (mb, 3);
7301 * Need to call this after converting the result since MONO_VTADDR needs
7302 * to be adjacent to the call instruction.
7304 if (check_exceptions)
7305 emit_thread_interrupt_checkpoint (mb);
7307 /* we need to convert byref arguments back and free string arrays */
7308 for (i = 0; i < sig->param_count; i++) {
7309 MonoType *t = sig->params [i];
7310 MonoMarshalSpec *spec = mspecs [i + 1];
7312 argnum = i + param_shift;
7314 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7315 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7320 case MONO_TYPE_STRING:
7321 case MONO_TYPE_VALUETYPE:
7322 case MONO_TYPE_CLASS:
7323 case MONO_TYPE_OBJECT:
7324 case MONO_TYPE_SZARRAY:
7325 case MONO_TYPE_BOOLEAN:
7326 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7333 if (!MONO_TYPE_IS_VOID(sig->ret))
7334 mono_mb_emit_ldloc (mb, 3);
7336 mono_mb_emit_byte (mb, CEE_RET);
7338 #endif /* DISABLE_JIT */
7341 * mono_marshal_get_native_wrapper:
7342 * @method: The MonoMethod to wrap.
7343 * @check_exceptions: Whenever to check for pending exceptions
7345 * generates IL code for the pinvoke wrapper (the generated method
7346 * calls the unmanaged code in piinfo->addr)
7347 * The wrapper info for the wrapper is a WrapperInfo structure.
7350 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7352 MonoMethodSignature *sig, *csig;
7353 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7354 MonoMethodBuilder *mb;
7355 MonoMarshalSpec **mspecs;
7358 gboolean pinvoke = FALSE;
7361 const char *exc_class = "MissingMethodException";
7362 const char *exc_arg = NULL;
7365 g_assert (method != NULL);
7366 g_assert (mono_method_signature (method)->pinvoke);
7368 GHashTable **cache_ptr;
7371 if (check_exceptions)
7372 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7374 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7376 if (check_exceptions)
7377 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7379 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7382 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7384 if ((res = mono_marshal_find_in_cache (cache, method)))
7387 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7388 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7392 return mono_cominterop_get_native_wrapper (method);
7394 g_assert_not_reached ();
7398 sig = mono_method_signature (method);
7400 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7401 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7404 if (!piinfo->addr) {
7406 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7407 exc_arg = "Method contains unsupported native code";
7409 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7411 piinfo->addr = mono_lookup_internal_call (method);
7415 /* hack - redirect certain string constructors to CreateString */
7416 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7417 g_assert (!pinvoke);
7418 g_assert (method->string_ctor);
7419 g_assert (sig->hasthis);
7421 /* CreateString returns a value */
7422 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7423 csig->ret = &mono_defaults.string_class->byval_arg;
7427 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7428 if (!strcmp ("CreateString", res->name) &&
7429 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7432 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7433 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7435 /* create a wrapper to preserve .ctor in stack trace */
7436 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7439 mono_mb_emit_byte (mb, CEE_LDARG_0);
7440 for (i = 1; i <= csig->param_count; i++)
7441 mono_mb_emit_ldarg (mb, i);
7442 mono_mb_emit_managed_call (mb, res, NULL);
7443 mono_mb_emit_byte (mb, CEE_RET);
7446 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7447 info->d.string_ctor.method = method;
7449 /* use native_wrapper_cache because internal calls are looked up there */
7450 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7451 csig->param_count + 1, info, NULL);
7458 /* exception will be thrown */
7459 piinfo->addr = NULL;
7460 g_warning ("cannot find CreateString for .ctor");
7463 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7465 mb->method->save_lmf = 1;
7468 * In AOT mode and embedding scenarios, it is possible that the icall is not
7469 * registered in the runtime doing the AOT compilation.
7471 if (!piinfo->addr && !aot) {
7473 mono_mb_emit_exception (mb, exc_class, exc_arg);
7475 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7476 info->d.managed_to_native.method = method;
7478 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7480 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7481 csig->param_count + 16, info, NULL);
7487 /* internal calls: we simply push all arguments and call the method (no conversions) */
7488 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7490 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7492 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7494 /* hack - string constructors returns a value */
7495 if (method->string_ctor)
7496 csig->ret = &mono_defaults.string_class->byval_arg;
7503 * Add a null check since public icalls can be called with 'call' which
7504 * does no such check.
7506 mono_mb_emit_byte (mb, CEE_LDARG_0);
7507 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7508 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7509 mono_mb_patch_branch (mb, pos);
7511 mono_mb_emit_byte (mb, CEE_LDARG_0);
7514 for (i = 0; i < sig->param_count; i++)
7515 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7518 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7519 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7520 mono_mb_emit_calli (mb, csig);
7522 g_assert (piinfo->addr);
7523 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7525 if (check_exceptions)
7526 emit_thread_interrupt_checkpoint (mb);
7527 mono_mb_emit_byte (mb, CEE_RET);
7529 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7530 info->d.managed_to_native.method = method;
7532 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7534 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7543 g_assert (piinfo->addr);
7546 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7547 mono_method_get_marshal_info (method, mspecs);
7549 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7551 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7552 info->d.managed_to_native.method = method;
7554 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7556 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7561 for (i = sig->param_count; i >= 0; i--)
7563 mono_metadata_free_marshal_spec (mspecs [i]);
7567 /* mono_method_print_code (res); */
7573 * mono_marshal_get_native_func_wrapper:
7574 * @image: The image to use for memory allocation and for looking up custom marshallers.
7575 * @sig: The signature of the function
7576 * @func: The native function to wrap
7578 * Returns a wrapper method around native functions, similar to the pinvoke
7582 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7583 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7585 MonoMethodSignature *csig;
7587 SignaturePointerPair key, *new_key;
7588 MonoMethodBuilder *mb;
7597 // Generic types are not safe to place in MonoImage caches.
7598 g_assert (!sig->is_inflated);
7600 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7601 if ((res = mono_marshal_find_in_cache (cache, &key)))
7604 name = g_strdup_printf ("wrapper_native_%p", func);
7605 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7606 mb->method->save_lmf = 1;
7609 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7612 csig = mono_metadata_signature_dup_full (image, sig);
7615 new_key = g_new (SignaturePointerPair,1);
7616 new_key->sig = csig;
7617 new_key->pointer = func;
7619 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7625 mono_marshal_set_wrapper_info (res, NULL);
7631 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7635 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7637 MonoMethodSignature *sig, *csig;
7638 MonoMethodBuilder *mb;
7643 MonoMethodPInvoke mpiinfo;
7644 MonoMethodPInvoke *piinfo = &mpiinfo;
7645 MonoMarshalSpec **mspecs;
7646 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7647 MonoImage *image = invoke->klass->image;
7650 // FIXME: include UnmanagedFunctionPointerAttribute info
7653 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7655 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7657 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7660 memset (&mpiinfo, 0, sizeof (mpiinfo));
7661 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7663 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7664 mono_method_get_marshal_info (invoke, mspecs);
7665 /* Freed below so don't alloc from mempool */
7666 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7669 name = g_strdup_printf ("wrapper_aot_native");
7670 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7671 mb->method->save_lmf = 1;
7674 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7677 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7678 info->d.managed_to_native.method = invoke;
7680 g_assert (!sig->hasthis);
7681 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
7683 res = mono_mb_create_and_cache_full (cache, invoke,
7684 mb, csig, csig->param_count + 16,
7688 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7690 mono_metadata_free_marshal_spec (mspecs [i]);
7698 * mono_marshal_emit_managed_wrapper:
7700 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7701 * the delegate which wraps the managed method to be called. For closed delegates,
7702 * it could have fewer parameters than the method it wraps.
7703 * THIS_LOC is the memory location where the target of the delegate is stored.
7706 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7709 MonoMethodSignature *sig, *csig;
7715 /* we first do all conversions */
7716 for (i = 0; i < sig->param_count; i ++) {
7717 MonoType *t = sig->params [i];
7720 case MONO_TYPE_OBJECT:
7721 case MONO_TYPE_CLASS:
7722 case MONO_TYPE_VALUETYPE:
7723 case MONO_TYPE_ARRAY:
7724 case MONO_TYPE_SZARRAY:
7725 case MONO_TYPE_STRING:
7726 case MONO_TYPE_BOOLEAN:
7727 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7731 if (!sig->ret->byref) {
7732 switch (sig->ret->type) {
7733 case MONO_TYPE_STRING:
7734 csig->ret = &mono_defaults.int_class->byval_arg;
7741 MonoMethodSignature *sig, *csig;
7743 gboolean closed = FALSE;
7744 int coop_gc_var, coop_gc_dummy_local;
7749 /* allocate local 0 (pointer) src_ptr */
7750 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7751 /* allocate local 1 (pointer) dst_ptr */
7752 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7753 /* allocate local 2 (boolean) delete_old */
7754 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7756 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7757 /* Closed delegate */
7758 g_assert (sig->param_count == invoke_sig->param_count + 1);
7760 /* Use a new signature without the first argument */
7761 sig = mono_metadata_signature_dup (sig);
7762 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7763 sig->param_count --;
7766 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7767 /* allocate local 3 to store the return value */
7768 mono_mb_add_local (mb, sig->ret);
7771 if (mono_threads_is_coop_enabled ()) {
7772 /* local 4, the local to be used when calling the reset_blocking funcs */
7773 /* tons of code hardcode 3 to be the return var */
7774 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7775 /* local 5, the local used to get a stack address for suspend funcs */
7776 coop_gc_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7779 mono_mb_emit_icon (mb, 0);
7780 mono_mb_emit_stloc (mb, 2);
7783 * Might need to attach the thread to the JIT or change the
7784 * domain for the callback.
7786 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7787 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
7789 if (mono_threads_is_coop_enabled ()) {
7790 /* XXX can we merge reset_blocking_start with JIT_ATTACH above and save one call? */
7791 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
7792 mono_mb_emit_icall (mb, mono_threads_reset_blocking_start);
7793 mono_mb_emit_stloc (mb, coop_gc_var);
7796 /* we first do all conversions */
7797 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7798 for (i = 0; i < sig->param_count; i ++) {
7799 MonoType *t = sig->params [i];
7802 case MONO_TYPE_OBJECT:
7803 case MONO_TYPE_CLASS:
7804 case MONO_TYPE_VALUETYPE:
7805 case MONO_TYPE_ARRAY:
7806 case MONO_TYPE_SZARRAY:
7807 case MONO_TYPE_STRING:
7808 case MONO_TYPE_BOOLEAN:
7809 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7818 emit_thread_interrupt_checkpoint (mb);
7821 if (target_handle) {
7822 mono_mb_emit_icon (mb, (gint32)target_handle);
7823 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7826 g_assert_not_reached ();
7828 } else if (closed) {
7829 mono_mb_emit_icon (mb, (gint32)target_handle);
7830 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7833 for (i = 0; i < sig->param_count; i++) {
7834 MonoType *t = sig->params [i];
7836 if (tmp_locals [i]) {
7838 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
7840 mono_mb_emit_ldloc (mb, tmp_locals [i]);
7843 mono_mb_emit_ldarg (mb, i);
7846 mono_mb_emit_managed_call (mb, method, NULL);
7848 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7849 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7850 } else if (!sig->ret->byref) {
7851 switch (sig->ret->type) {
7852 case MONO_TYPE_VOID:
7854 case MONO_TYPE_BOOLEAN:
7857 case MONO_TYPE_CHAR:
7869 case MONO_TYPE_OBJECT:
7870 mono_mb_emit_stloc (mb, 3);
7872 case MONO_TYPE_STRING:
7873 csig->ret = &mono_defaults.int_class->byval_arg;
7874 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7876 case MONO_TYPE_VALUETYPE:
7877 case MONO_TYPE_CLASS:
7878 case MONO_TYPE_SZARRAY:
7879 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7882 g_warning ("return type 0x%02x unknown", sig->ret->type);
7883 g_assert_not_reached ();
7886 mono_mb_emit_stloc (mb, 3);
7889 /* Convert byref arguments back */
7890 for (i = 0; i < sig->param_count; i ++) {
7891 MonoType *t = sig->params [i];
7892 MonoMarshalSpec *spec = mspecs [i + 1];
7894 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7895 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7897 else if (t->byref) {
7899 case MONO_TYPE_CLASS:
7900 case MONO_TYPE_VALUETYPE:
7901 case MONO_TYPE_OBJECT:
7902 case MONO_TYPE_STRING:
7903 case MONO_TYPE_BOOLEAN:
7904 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7910 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
7911 /* The [Out] information is encoded in the delegate signature */
7913 case MONO_TYPE_SZARRAY:
7914 case MONO_TYPE_CLASS:
7915 case MONO_TYPE_VALUETYPE:
7916 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7919 g_assert_not_reached ();
7924 if (mono_threads_is_coop_enabled ()) {
7925 /* XXX merge reset_blocking_end with detach */
7926 mono_mb_emit_ldloc (mb, coop_gc_var);
7927 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
7928 mono_mb_emit_icall (mb, mono_threads_reset_blocking_end);
7931 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7932 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
7934 if (m->retobj_var) {
7935 mono_mb_emit_ldloc (mb, m->retobj_var);
7936 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7937 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
7940 if (!MONO_TYPE_IS_VOID(sig->ret))
7941 mono_mb_emit_ldloc (mb, 3);
7942 mono_mb_emit_byte (mb, CEE_RET);
7951 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
7953 MonoMethodSignature *sig;
7958 * Under windows, delegates passed to native code must use the STDCALL
7959 * calling convention.
7961 csig->call_convention = MONO_CALL_STDCALL;
7964 sig = mono_method_signature (method);
7966 /* Change default calling convention if needed */
7967 /* Why is this a modopt ? */
7968 if (sig->ret && sig->ret->num_mods) {
7969 for (i = 0; i < sig->ret->num_mods; ++i) {
7971 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
7972 g_assert (mono_error_ok (&error));
7973 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
7974 if (!strcmp (cmod_class->name, "CallConvCdecl"))
7975 csig->call_convention = MONO_CALL_C;
7976 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
7977 csig->call_convention = MONO_CALL_STDCALL;
7978 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
7979 csig->call_convention = MONO_CALL_FASTCALL;
7980 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
7981 csig->call_convention = MONO_CALL_THISCALL;
7988 * generates IL code to call managed methods from unmanaged code
7989 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
7992 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
7994 static MonoClass *UnmanagedFunctionPointerAttribute;
7995 MonoMethodSignature *sig, *csig, *invoke_sig;
7996 MonoMethodBuilder *mb;
7997 MonoMethod *res, *invoke;
7998 MonoMarshalSpec **mspecs;
7999 MonoMethodPInvoke piinfo;
8002 EmitMarshalContext m;
8004 g_assert (method != NULL);
8005 g_assert (!mono_method_signature (method)->pinvoke);
8008 * FIXME: Should cache the method+delegate type pair, since the same method
8009 * could be called with different delegates, thus different marshalling
8012 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8014 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8017 invoke = mono_get_delegate_invoke (delegate_klass);
8018 invoke_sig = mono_method_signature (invoke);
8020 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8021 mono_method_get_marshal_info (invoke, mspecs);
8023 sig = mono_method_signature (method);
8025 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8027 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8028 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8030 /* we copy the signature, so that we can modify it */
8032 /* Need to free this later */
8033 csig = mono_metadata_signature_dup (invoke_sig);
8035 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8039 memset (&m, 0, sizeof (m));
8045 m.image = method->klass->image;
8047 mono_marshal_set_callconv_from_modopt (invoke, csig);
8049 /* Handle the UnmanagedFunctionPointerAttribute */
8050 if (!UnmanagedFunctionPointerAttribute)
8051 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
8053 /* The attribute is only available in Net 2.0 */
8054 if (UnmanagedFunctionPointerAttribute) {
8055 MonoCustomAttrInfo *cinfo;
8056 MonoCustomAttrEntry *attr;
8059 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8060 * contents of the attribute without constructing it, as that might not be
8061 * possible when running in cross-compiling mode.
8063 cinfo = mono_custom_attrs_from_class (delegate_klass);
8066 for (i = 0; i < cinfo->num_attrs; ++i) {
8067 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8068 if (mono_class_has_parent (ctor_class, UnmanagedFunctionPointerAttribute)) {
8069 attr = &cinfo->attrs [i];
8075 MonoArray *typed_args, *named_args;
8076 CattrNamedArg *arginfo;
8080 MonoBoolean set_last_error = 0;
8083 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8084 g_assert (mono_error_ok (&error));
8085 g_assert (mono_array_length (typed_args) == 1);
8088 o = mono_array_get (typed_args, MonoObject*, 0);
8089 call_conv = *(gint32*)mono_object_unbox (o);
8092 for (i = 0; i < mono_array_length (named_args); ++i) {
8093 CattrNamedArg *narg = &arginfo [i];
8095 o = mono_array_get (named_args, MonoObject*, i);
8097 g_assert (narg->field);
8098 if (!strcmp (narg->field->name, "CharSet")) {
8099 charset = *(gint32*)mono_object_unbox (o);
8100 } else if (!strcmp (narg->field->name, "SetLastError")) {
8101 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8102 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8103 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8104 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8105 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8107 g_assert_not_reached ();
8113 memset (&piinfo, 0, sizeof (piinfo));
8115 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8117 csig->call_convention = call_conv - 1;
8120 if (cinfo && !cinfo->cached)
8121 mono_custom_attrs_free (cinfo);
8124 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8126 if (!target_handle) {
8129 // FIXME: Associate it with the method+delegate_klass pair
8130 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8131 info->d.native_to_managed.method = method;
8132 info->d.native_to_managed.klass = delegate_klass;
8134 res = mono_mb_create_and_cache_full (cache, method,
8135 mb, csig, sig->param_count + 16,
8141 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8145 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8147 mono_metadata_free_marshal_spec (mspecs [i]);
8150 /* mono_method_print_code (res); */
8156 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8160 MonoMethodSignature *sig;
8161 MonoMethodBuilder *mb;
8166 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8168 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8171 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8172 MonoMethodSignature *csig;
8173 MonoMarshalSpec **mspecs;
8174 EmitMarshalContext m;
8176 sig = mono_method_signature (method);
8177 g_assert (!sig->hasthis);
8179 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8180 mono_method_get_marshal_info (method, mspecs);
8182 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8183 csig = mono_metadata_signature_dup_full (image, sig);
8187 memset (&m, 0, sizeof (m));
8195 mono_marshal_set_callconv_from_modopt (method, csig);
8197 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8199 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8204 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8207 for (i = sig->param_count; i >= 0; i--)
8209 mono_metadata_free_marshal_spec (mspecs [i]);
8212 return mono_compile_method (method);
8215 sig = mono_method_signature (method);
8216 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8218 param_count = sig->param_count + sig->hasthis;
8220 for (i = 0; i < param_count; i++)
8221 mono_mb_emit_ldarg (mb, i);
8223 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8224 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8226 mono_mb_emit_op (mb, CEE_CALL, method);
8227 mono_mb_emit_byte (mb, CEE_RET);
8232 method = mono_mb_create (mb, sig, param_count, NULL);
8235 return mono_compile_method (method);
8241 * The code directly following this is the cache hit, value positive branch
8243 * This function takes a new method builder with 0 locals and adds two locals
8244 * to create multiple out-branches and the fall through state of having the object
8245 * on the stack after a cache miss
8248 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8249 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8250 MonoMethodBuilder *mb)
8254 /* allocate local 0 (pointer) obj_vtable */
8255 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8256 /* allocate local 1 (pointer) cached_vtable */
8257 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8260 mono_mb_emit_ldarg (mb, obj_arg_position);
8261 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8263 /*obj_vtable = obj->vtable;*/
8264 mono_mb_emit_ldarg (mb, obj_arg_position);
8265 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8266 mono_mb_emit_byte (mb, CEE_LDIND_I);
8267 mono_mb_emit_stloc (mb, 0);
8269 /* cached_vtable = *cache*/
8270 mono_mb_emit_ldarg (mb, cache_arg_position);
8271 mono_mb_emit_byte (mb, CEE_LDIND_I);
8272 mono_mb_emit_stloc (mb, 1);
8274 mono_mb_emit_ldloc (mb, 1);
8275 mono_mb_emit_byte (mb, CEE_LDC_I4);
8276 mono_mb_emit_i4 (mb, ~0x1);
8277 mono_mb_emit_byte (mb, CEE_CONV_I);
8278 mono_mb_emit_byte (mb, CEE_AND);
8279 mono_mb_emit_ldloc (mb, 0);
8280 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8281 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8283 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8284 mono_mb_emit_ldloc (mb, 1);
8285 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8286 mono_mb_emit_byte (mb, CEE_CONV_U);
8287 mono_mb_emit_byte (mb, CEE_AND);
8288 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8289 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8292 mono_mb_patch_branch (mb, cache_miss_pos);
8295 mono_mb_emit_ldarg (mb, obj_arg_position);
8296 mono_mb_emit_ldarg (mb, class_arg_position);
8297 mono_mb_emit_ldarg (mb, cache_arg_position);
8298 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8301 #endif /* DISABLE_JIT */
8304 * This does the equivalent of mono_object_castclass_with_cache.
8305 * The wrapper info for the wrapper is a WrapperInfo structure.
8308 mono_marshal_get_castclass_with_cache (void)
8310 static MonoMethod *cached;
8312 MonoMethodBuilder *mb;
8313 MonoMethodSignature *sig;
8314 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8317 const int obj_arg_position = 0;
8318 const int class_arg_position = 1;
8319 const int cache_arg_position = 2;
8324 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8325 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8326 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8327 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8328 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8329 sig->ret = &mono_defaults.object_class->byval_arg;
8333 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8334 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8335 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8338 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8339 mono_mb_emit_ldarg (mb, obj_arg_position);
8340 mono_mb_emit_byte (mb, CEE_RET);
8343 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8344 mono_mb_patch_branch (mb, invalid_cast_pos);
8345 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8348 mono_mb_patch_branch (mb, return_null_pos);
8349 mono_mb_emit_byte (mb, CEE_LDNULL);
8350 mono_mb_emit_byte (mb, CEE_RET);
8351 #endif /* DISABLE_JIT */
8353 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8354 res = mono_mb_create (mb, sig, 8, info);
8357 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8358 mono_free_method (res);
8359 mono_metadata_free_method_signature (sig);
8367 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8369 MonoObject *isinst = mono_object_isinst (obj, klass);
8371 #ifndef DISABLE_REMOTING
8372 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8376 uintptr_t cache_update = (uintptr_t)obj->vtable;
8378 cache_update = cache_update | 0x1;
8380 *cache = cache_update;
8386 * This does the equivalent of mono_object_isinst_with_cache.
8387 * The wrapper info for the wrapper is a WrapperInfo structure.
8390 mono_marshal_get_isinst_with_cache (void)
8392 static MonoMethod *cached;
8394 MonoMethodBuilder *mb;
8395 MonoMethodSignature *sig;
8396 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8399 const int obj_arg_position = 0;
8400 const int class_arg_position = 1;
8401 const int cache_arg_position = 2;
8406 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8407 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8409 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8411 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8413 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8414 sig->ret = &mono_defaults.object_class->byval_arg;
8418 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8419 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8420 // Return the object gotten via the slow path.
8421 mono_mb_emit_byte (mb, CEE_RET);
8424 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8425 mono_mb_patch_branch (mb, return_null_pos);
8426 mono_mb_emit_byte (mb, CEE_LDNULL);
8427 mono_mb_emit_byte (mb, CEE_RET);
8430 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8431 mono_mb_emit_ldarg (mb, 0);
8432 mono_mb_emit_byte (mb, CEE_RET);
8435 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8436 res = mono_mb_create (mb, sig, 8, info);
8439 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8440 mono_free_method (res);
8441 mono_metadata_free_method_signature (sig);
8449 * mono_marshal_get_isinst:
8450 * @klass: the type of the field
8452 * This method generates a function which can be used to check if an object is
8453 * an instance of the given type, icluding the case where the object is a proxy.
8454 * The generated function has the following signature:
8455 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8458 mono_marshal_get_isinst (MonoClass *klass)
8460 static MonoMethodSignature *isint_sig = NULL;
8464 int pos_was_ok, pos_end;
8465 #ifndef DISABLE_REMOTING
8466 int pos_end2, pos_failed;
8469 MonoMethodBuilder *mb;
8471 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8472 if ((res = mono_marshal_find_in_cache (cache, klass)))
8476 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8477 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8478 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8479 isint_sig->pinvoke = 0;
8482 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8483 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8486 mb->method->save_lmf = 1;
8489 /* check if the object is a proxy that needs special cast */
8490 mono_mb_emit_ldarg (mb, 0);
8491 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8492 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8494 /* The result of MONO_CISINST can be:
8495 0) the type check succeeded
8496 1) the type check did not succeed
8497 2) a CanCastTo call is needed */
8498 #ifndef DISABLE_REMOTING
8499 mono_mb_emit_byte (mb, CEE_DUP);
8500 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8502 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8503 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8505 /* get the real proxy from the transparent proxy*/
8507 mono_mb_emit_ldarg (mb, 0);
8508 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8509 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8513 mono_mb_patch_branch (mb, pos_failed);
8514 mono_mb_emit_byte (mb, CEE_LDNULL);
8515 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8519 mono_mb_patch_branch (mb, pos_was_ok);
8520 mono_mb_emit_byte (mb, CEE_POP);
8521 mono_mb_emit_ldarg (mb, 0);
8525 mono_mb_patch_branch (mb, pos_end);
8526 mono_mb_patch_branch (mb, pos_end2);
8527 mono_mb_emit_byte (mb, CEE_RET);
8529 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8533 mono_mb_emit_byte (mb, CEE_LDNULL);
8534 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8538 mono_mb_patch_branch (mb, pos_was_ok);
8539 mono_mb_emit_ldarg (mb, 0);
8543 mono_mb_patch_branch (mb, pos_end);
8544 mono_mb_emit_byte (mb, CEE_RET);
8545 #endif /* DISABLE_REMOTING */
8546 #endif /* DISABLE_JIT */
8548 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8549 info->d.proxy.klass = klass;
8550 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8557 * mono_marshal_get_castclass:
8558 * @klass: the type of the field
8560 * This method generates a function which can be used to cast an object to
8561 * an instance of the given type, icluding the case where the object is a proxy.
8562 * The generated function has the following signature:
8563 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8564 * The wrapper info for the wrapper is a WrapperInfo structure.
8567 mono_marshal_get_castclass (MonoClass *klass)
8569 static MonoMethodSignature *castclass_sig = NULL;
8572 #ifndef DISABLE_REMOTING
8573 int pos_was_ok, pos_was_ok2;
8576 MonoMethodBuilder *mb;
8579 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8580 if ((res = mono_marshal_find_in_cache (cache, klass)))
8583 if (!castclass_sig) {
8584 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8585 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8586 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8587 castclass_sig->pinvoke = 0;
8590 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8591 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8594 mb->method->save_lmf = 1;
8597 /* check if the object is a proxy that needs special cast */
8598 mono_mb_emit_ldarg (mb, 0);
8599 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8600 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8602 /* The result of MONO_CCASTCLASS can be:
8603 0) the cast is valid
8604 1) cast of unknown proxy type
8605 or an exception if the cast is is invalid
8607 #ifndef DISABLE_REMOTING
8608 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8610 /* get the real proxy from the transparent proxy*/
8612 mono_mb_emit_ldarg (mb, 0);
8613 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8614 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8617 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8620 mono_mb_patch_branch (mb, pos_was_ok);
8621 mono_mb_patch_branch (mb, pos_was_ok2);
8623 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8624 mono_mb_emit_byte (mb, CEE_POP);
8625 #endif /* DISABLE_REMOTING */
8627 mono_mb_emit_ldarg (mb, 0);
8630 mono_mb_emit_byte (mb, CEE_RET);
8631 #endif /* DISABLE_JIT */
8633 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8635 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8643 * mono_marshal_get_struct_to_ptr:
8646 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8647 * The wrapper info for the wrapper is a WrapperInfo structure.
8650 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8652 MonoMethodBuilder *mb;
8653 static MonoMethod *stoptr = NULL;
8657 g_assert (klass != NULL);
8659 mono_marshal_load_type_info (klass);
8661 if (klass->marshal_info->str_to_ptr)
8662 return klass->marshal_info->str_to_ptr;
8665 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8668 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8671 if (klass->blittable) {
8672 mono_mb_emit_byte (mb, CEE_LDARG_1);
8673 mono_mb_emit_byte (mb, CEE_LDARG_0);
8674 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8675 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8676 mono_mb_emit_byte (mb, CEE_PREFIX1);
8677 mono_mb_emit_byte (mb, CEE_CPBLK);
8680 /* allocate local 0 (pointer) src_ptr */
8681 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8682 /* allocate local 1 (pointer) dst_ptr */
8683 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8684 /* allocate local 2 (boolean) delete_old */
8685 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8686 mono_mb_emit_byte (mb, CEE_LDARG_2);
8687 mono_mb_emit_stloc (mb, 2);
8689 /* initialize src_ptr to point to the start of object data */
8690 mono_mb_emit_byte (mb, CEE_LDARG_0);
8691 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8692 mono_mb_emit_stloc (mb, 0);
8694 /* initialize dst_ptr */
8695 mono_mb_emit_byte (mb, CEE_LDARG_1);
8696 mono_mb_emit_stloc (mb, 1);
8698 emit_struct_conv (mb, klass, FALSE);
8701 mono_mb_emit_byte (mb, CEE_RET);
8703 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
8704 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
8707 mono_marshal_lock ();
8708 if (!klass->marshal_info->str_to_ptr)
8709 klass->marshal_info->str_to_ptr = res;
8711 res = klass->marshal_info->str_to_ptr;
8712 mono_marshal_unlock ();
8717 * mono_marshal_get_ptr_to_struct:
8720 * generates IL code for PtrToStructure (IntPtr src, object structure)
8721 * The wrapper info for the wrapper is a WrapperInfo structure.
8724 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8726 MonoMethodBuilder *mb;
8727 static MonoMethodSignature *ptostr = NULL;
8731 g_assert (klass != NULL);
8733 mono_marshal_load_type_info (klass);
8735 if (klass->marshal_info->ptr_to_str)
8736 return klass->marshal_info->ptr_to_str;
8739 MonoMethodSignature *sig;
8741 /* Create the signature corresponding to
8742 static void PtrToStructure (IntPtr ptr, object structure);
8743 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8744 sig = mono_create_icall_signature ("void ptr object");
8745 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
8747 mono_memory_barrier ();
8751 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8754 if (klass->blittable) {
8755 mono_mb_emit_byte (mb, CEE_LDARG_1);
8756 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8757 mono_mb_emit_byte (mb, CEE_LDARG_0);
8758 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8759 mono_mb_emit_byte (mb, CEE_PREFIX1);
8760 mono_mb_emit_byte (mb, CEE_CPBLK);
8763 /* allocate local 0 (pointer) src_ptr */
8764 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8765 /* allocate local 1 (pointer) dst_ptr */
8766 mono_mb_add_local (mb, &klass->this_arg);
8768 /* initialize src_ptr to point to the start of object data */
8769 mono_mb_emit_byte (mb, CEE_LDARG_0);
8770 mono_mb_emit_stloc (mb, 0);
8772 /* initialize dst_ptr */
8773 mono_mb_emit_byte (mb, CEE_LDARG_1);
8774 mono_mb_emit_op (mb, CEE_UNBOX, klass);
8775 mono_mb_emit_stloc (mb, 1);
8777 emit_struct_conv (mb, klass, TRUE);
8780 mono_mb_emit_byte (mb, CEE_RET);
8782 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
8783 res = mono_mb_create (mb, ptostr, 0, info);
8786 mono_marshal_lock ();
8787 if (!klass->marshal_info->ptr_to_str)
8788 klass->marshal_info->ptr_to_str = res;
8790 res = klass->marshal_info->ptr_to_str;
8791 mono_marshal_unlock ();
8796 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
8797 * This is used to avoid infinite recursion since it is hard to determine where to
8798 * replace a method with its synchronized wrapper, and where not.
8799 * The runtime should execute METHOD instead of the wrapper.
8800 * The wrapper info for the wrapper is a WrapperInfo structure.
8803 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
8805 MonoMethodBuilder *mb;
8807 MonoMethodSignature *sig;
8809 MonoGenericContext *ctx = NULL;
8810 MonoGenericContainer *container = NULL;
8812 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8813 ctx = &((MonoMethodInflated*)method)->context;
8814 method = ((MonoMethodInflated*)method)->declaring;
8815 container = mono_method_get_generic_container (method);
8817 container = method->klass->generic_container;
8818 g_assert (container);
8821 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
8823 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
8824 mono_mb_emit_byte (mb, CEE_RET);
8826 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
8828 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
8829 info->d.synchronized_inner.method = method;
8830 res = mono_mb_create (mb, sig, 0, info);
8834 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
8835 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8841 * generates IL code for the synchronized wrapper: the generated method
8842 * calls METHOD while locking 'this' or the parent type.
8845 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
8847 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
8848 MonoMethodSignature *sig;
8849 MonoExceptionClause *clause;
8850 MonoMethodBuilder *mb;
8854 int i, pos, pos2, this_local, taken_local, ret_local = 0;
8855 MonoGenericContext *ctx = NULL;
8856 MonoMethod *orig_method = NULL;
8857 MonoGenericContainer *container = NULL;
8861 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
8864 /* FIXME: Support generic methods too */
8865 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8866 orig_method = method;
8867 ctx = &((MonoMethodInflated*)method)->context;
8868 method = ((MonoMethodInflated*)method)->declaring;
8869 container = mono_method_get_generic_container (method);
8871 container = method->klass->generic_container;
8872 g_assert (container);
8879 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
8880 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
8884 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
8885 if ((res = mono_marshal_find_in_cache (cache, method)))
8889 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
8892 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
8894 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8895 info->d.synchronized.method = method;
8898 mb->skip_visibility = 1;
8900 if (!MONO_TYPE_IS_VOID (sig->ret))
8901 ret_local = mono_mb_add_local (mb, sig->ret);
8904 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
8905 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
8907 /* This will throw the type load exception when the wrapper is compiled */
8908 mono_mb_emit_byte (mb, CEE_LDNULL);
8909 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
8910 mono_mb_emit_byte (mb, CEE_POP);
8912 if (!MONO_TYPE_IS_VOID (sig->ret))
8913 mono_mb_emit_ldloc (mb, ret_local);
8914 mono_mb_emit_byte (mb, CEE_RET);
8917 res = mono_mb_create_and_cache_full (cache, method,
8918 mb, sig, sig->param_count + 16, info, NULL);
8926 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8927 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8929 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
8930 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8933 mono_marshal_lock ();
8935 if (!enter_method) {
8936 MonoMethodDesc *desc;
8938 desc = mono_method_desc_new ("Monitor:enter_with_atomic_var(object,bool&)", FALSE);
8939 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8940 g_assert (enter_method);
8941 mono_method_desc_free (desc);
8943 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
8944 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8945 g_assert (exit_method);
8946 mono_method_desc_free (desc);
8948 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
8949 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
8950 g_assert (gettypefromhandle_method);
8951 mono_method_desc_free (desc);
8954 mono_marshal_unlock ();
8957 /* Push this or the type object */
8958 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
8959 /* We have special handling for this in the JIT */
8960 int index = mono_mb_add_data (mb, method->klass);
8961 mono_mb_add_data (mb, mono_defaults.typehandle_class);
8962 mono_mb_emit_byte (mb, CEE_LDTOKEN);
8963 mono_mb_emit_i4 (mb, index);
8965 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
8968 mono_mb_emit_ldarg (mb, 0);
8969 mono_mb_emit_stloc (mb, this_local);
8971 /* Call Monitor::Enter() */
8972 mono_mb_emit_ldloc (mb, this_local);
8973 mono_mb_emit_ldloc_addr (mb, taken_local);
8974 mono_mb_emit_managed_call (mb, enter_method, NULL);
8976 clause->try_offset = mono_mb_get_label (mb);
8978 /* Call the method */
8980 mono_mb_emit_ldarg (mb, 0);
8981 for (i = 0; i < sig->param_count; i++)
8982 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
8986 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
8987 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8989 mono_mb_emit_managed_call (mb, method, NULL);
8992 if (!MONO_TYPE_IS_VOID (sig->ret))
8993 mono_mb_emit_stloc (mb, ret_local);
8995 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8997 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
8998 clause->handler_offset = mono_mb_get_label (mb);
9000 /* Call Monitor::Exit() if needed */
9001 mono_mb_emit_ldloc (mb, taken_local);
9002 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9003 mono_mb_emit_ldloc (mb, this_local);
9004 mono_mb_emit_managed_call (mb, exit_method, NULL);
9005 mono_mb_patch_branch (mb, pos2);
9006 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9008 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9010 mono_mb_patch_branch (mb, pos);
9011 if (!MONO_TYPE_IS_VOID (sig->ret))
9012 mono_mb_emit_ldloc (mb, ret_local);
9013 mono_mb_emit_byte (mb, CEE_RET);
9015 mono_mb_set_clauses (mb, 1, clause);
9020 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9021 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9023 res = mono_mb_create_and_cache_full (cache, method,
9024 mb, sig, sig->param_count + 16, info, NULL);
9033 * the returned method calls 'method' unboxing the this argument
9036 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9038 MonoMethodSignature *sig = mono_method_signature (method);
9040 MonoMethodBuilder *mb;
9045 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9047 if ((res = mono_marshal_find_in_cache (cache, method)))
9050 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9052 g_assert (sig->hasthis);
9055 mono_mb_emit_ldarg (mb, 0);
9056 mono_mb_emit_icon (mb, sizeof (MonoObject));
9057 mono_mb_emit_byte (mb, CEE_ADD);
9058 for (i = 0; i < sig->param_count; ++i)
9059 mono_mb_emit_ldarg (mb, i + 1);
9060 mono_mb_emit_managed_call (mb, method, NULL);
9061 mono_mb_emit_byte (mb, CEE_RET);
9064 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9065 info->d.unbox.method = method;
9067 res = mono_mb_create_and_cache_full (cache, method,
9068 mb, sig, sig->param_count + 16, info, NULL);
9071 /* mono_method_print_code (res); */
9077 STELEMREF_OBJECT, /*no check at all*/
9078 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9079 STELEMREF_CLASS, /*only the klass->parents check*/
9080 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9081 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9082 STELEMREF_KIND_COUNT
9085 static const char *strelemref_wrapper_name[] = {
9086 "object", "sealed_class", "class", "interface", "complex"
9090 is_monomorphic_array (MonoClass *klass)
9092 MonoClass *element_class;
9093 if (klass->rank != 1)
9096 element_class = klass->element_class;
9097 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9101 get_virtual_stelemref_kind (MonoClass *element_class)
9103 if (element_class == mono_defaults.object_class)
9104 return STELEMREF_OBJECT;
9105 if (is_monomorphic_array (element_class))
9106 return STELEMREF_SEALED_CLASS;
9107 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9108 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9109 #ifdef COMPRESSED_INTERFACE_BITMAP
9110 return STELEMREF_COMPLEX;
9112 return STELEMREF_INTERFACE;
9114 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9115 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9116 return STELEMREF_COMPLEX;
9117 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9118 return STELEMREF_SEALED_CLASS;
9119 return STELEMREF_CLASS;
9125 load_array_element_address (MonoMethodBuilder *mb)
9127 mono_mb_emit_ldarg (mb, 0);
9128 mono_mb_emit_ldarg (mb, 1);
9129 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9133 load_array_class (MonoMethodBuilder *mb, int aklass)
9135 mono_mb_emit_ldarg (mb, 0);
9136 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9137 mono_mb_emit_byte (mb, CEE_LDIND_I);
9138 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9139 mono_mb_emit_byte (mb, CEE_LDIND_I);
9140 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9141 mono_mb_emit_byte (mb, CEE_LDIND_I);
9142 mono_mb_emit_stloc (mb, aklass);
9146 load_value_class (MonoMethodBuilder *mb, int vklass)
9148 mono_mb_emit_ldarg (mb, 2);
9149 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9150 mono_mb_emit_byte (mb, CEE_LDIND_I);
9151 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9152 mono_mb_emit_byte (mb, CEE_LDIND_I);
9153 mono_mb_emit_stloc (mb, vklass);
9159 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9161 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9162 printf ("slow vstore of %s\n", name);
9168 * The wrapper info for the wrapper is a WrapperInfo structure.
9171 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9172 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9173 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9174 * - Add a case for arrays of arrays.
9177 get_virtual_stelemref_wrapper (int kind)
9179 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9180 static MonoMethodSignature *signature;
9181 MonoMethodBuilder *mb;
9184 const char *param_names [16];
9186 int aklass, vklass, vtable, uiid;
9187 int array_slot_addr;
9190 if (cached_methods [kind])
9191 return cached_methods [kind];
9193 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9194 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9198 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9200 /* void this::stelemref (size_t idx, void* value) */
9201 sig->ret = &mono_defaults.void_class->byval_arg;
9202 sig->hasthis = TRUE;
9203 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9204 sig->params [1] = &mono_defaults.object_class->byval_arg;
9209 param_names [0] = "index";
9210 param_names [1] = "value";
9211 mono_mb_set_param_names (mb, param_names);
9213 /*For now simply call plain old stelemref*/
9215 case STELEMREF_OBJECT:
9216 /* ldelema (implicit bound check) */
9217 load_array_element_address (mb);
9219 mono_mb_emit_ldarg (mb, 2);
9220 mono_mb_emit_byte (mb, CEE_STIND_REF);
9221 mono_mb_emit_byte (mb, CEE_RET);
9224 case STELEMREF_COMPLEX:
9226 <ldelema (bound check)>
9229 if (!mono_object_isinst (value, aklass))
9233 *array_slot_addr = value;
9236 throw new ArrayTypeMismatchException ();
9239 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9240 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9244 /*Use this to debug/record stores that are going thru the slow path*/
9245 MonoMethodSignature *csig;
9246 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9247 csig->ret = &mono_defaults.void_class->byval_arg;
9248 csig->params [0] = &mono_defaults.object_class->byval_arg;
9249 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9250 csig->params [2] = &mono_defaults.object_class->byval_arg;
9251 mono_mb_emit_ldarg (mb, 0);
9252 mono_mb_emit_ldarg (mb, 1);
9253 mono_mb_emit_ldarg (mb, 2);
9254 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9258 /* ldelema (implicit bound check) */
9259 load_array_element_address (mb);
9260 mono_mb_emit_stloc (mb, array_slot_addr);
9262 /* if (!value) goto do_store */
9263 mono_mb_emit_ldarg (mb, 2);
9264 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9266 /* aklass = array->vtable->klass->element_class */
9267 load_array_class (mb, aklass);
9269 /*if (mono_object_isinst (value, aklass)) */
9270 mono_mb_emit_ldarg (mb, 2);
9271 mono_mb_emit_ldloc (mb, aklass);
9272 mono_mb_emit_icall (mb, mono_object_isinst);
9273 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9276 mono_mb_patch_branch (mb, b1);
9277 mono_mb_emit_ldloc (mb, array_slot_addr);
9278 mono_mb_emit_ldarg (mb, 2);
9279 mono_mb_emit_byte (mb, CEE_STIND_REF);
9280 mono_mb_emit_byte (mb, CEE_RET);
9283 mono_mb_patch_branch (mb, b2);
9285 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9288 case STELEMREF_SEALED_CLASS:
9290 <ldelema (bound check)>
9294 aklass = array->vtable->klass->element_class;
9295 vklass = value->vtable->klass;
9297 if (vklass != aklass)
9301 *array_slot_addr = value;
9304 throw new ArrayTypeMismatchException ();
9306 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9307 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9308 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9311 /* ldelema (implicit bound check) */
9312 load_array_element_address (mb);
9313 mono_mb_emit_stloc (mb, array_slot_addr);
9315 /* if (!value) goto do_store */
9316 mono_mb_emit_ldarg (mb, 2);
9317 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9319 /* aklass = array->vtable->klass->element_class */
9320 load_array_class (mb, aklass);
9322 /* vklass = value->vtable->klass */
9323 load_value_class (mb, vklass);
9325 /*if (vklass != aklass) goto do_exception; */
9326 mono_mb_emit_ldloc (mb, aklass);
9327 mono_mb_emit_ldloc (mb, vklass);
9328 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9331 mono_mb_patch_branch (mb, b1);
9332 mono_mb_emit_ldloc (mb, array_slot_addr);
9333 mono_mb_emit_ldarg (mb, 2);
9334 mono_mb_emit_byte (mb, CEE_STIND_REF);
9335 mono_mb_emit_byte (mb, CEE_RET);
9338 mono_mb_patch_branch (mb, b2);
9339 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9342 case STELEMREF_CLASS:
9345 <ldelema (bound check)>
9349 aklass = array->vtable->klass->element_class;
9350 vklass = value->vtable->klass;
9352 if (vklass->idepth < aklass->idepth)
9355 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9359 *array_slot_addr = value;
9363 throw new ArrayTypeMismatchException ();
9365 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9366 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9367 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9369 /* ldelema (implicit bound check) */
9370 load_array_element_address (mb);
9371 mono_mb_emit_stloc (mb, array_slot_addr);
9373 /* if (!value) goto do_store */
9374 mono_mb_emit_ldarg (mb, 2);
9375 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9377 /* aklass = array->vtable->klass->element_class */
9378 load_array_class (mb, aklass);
9380 /* vklass = value->vtable->klass */
9381 load_value_class (mb, vklass);
9383 /*if (mono_object_isinst (value, aklass)) */
9384 mono_mb_emit_ldarg (mb, 2);
9385 mono_mb_emit_ldloc (mb, aklass);
9386 mono_mb_emit_icall (mb, mono_object_isinst);
9387 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9389 /* if (vklass->idepth < aklass->idepth) goto failue */
9390 mono_mb_emit_ldloc (mb, vklass);
9391 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9392 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9394 mono_mb_emit_ldloc (mb, aklass);
9395 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9396 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9398 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9400 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9401 mono_mb_emit_ldloc (mb, vklass);
9402 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9403 mono_mb_emit_byte (mb, CEE_LDIND_I);
9405 mono_mb_emit_ldloc (mb, aklass);
9406 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9407 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9408 mono_mb_emit_icon (mb, 1);
9409 mono_mb_emit_byte (mb, CEE_SUB);
9410 mono_mb_emit_icon (mb, sizeof (void*));
9411 mono_mb_emit_byte (mb, CEE_MUL);
9412 mono_mb_emit_byte (mb, CEE_ADD);
9413 mono_mb_emit_byte (mb, CEE_LDIND_I);
9415 mono_mb_emit_ldloc (mb, aklass);
9416 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9419 mono_mb_patch_branch (mb, b1);
9420 mono_mb_emit_ldloc (mb, array_slot_addr);
9421 mono_mb_emit_ldarg (mb, 2);
9422 mono_mb_emit_byte (mb, CEE_STIND_REF);
9423 mono_mb_emit_byte (mb, CEE_RET);
9426 mono_mb_patch_branch (mb, b2);
9427 mono_mb_patch_branch (mb, b3);
9429 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9432 case STELEMREF_INTERFACE:
9439 klass = array->obj.vtable->klass->element_class;
9441 uiid = klass->interface_id;
9442 if (uiid > vt->max_interface_id)
9444 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9447 mono_array_setref (array, index, value);
9450 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9452 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9453 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9454 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9455 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9457 /* ldelema (implicit bound check) */
9458 load_array_element_address (mb);
9459 mono_mb_emit_stloc (mb, array_slot_addr);
9461 /* if (!value) goto do_store */
9462 mono_mb_emit_ldarg (mb, 2);
9463 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9465 /* klass = array->vtable->klass->element_class */
9466 load_array_class (mb, aklass);
9468 /* vt = value->vtable */
9469 mono_mb_emit_ldarg (mb, 2);
9470 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9471 mono_mb_emit_byte (mb, CEE_LDIND_I);
9472 mono_mb_emit_stloc (mb, vtable);
9474 /* uiid = klass->interface_id; */
9475 mono_mb_emit_ldloc (mb, aklass);
9476 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9477 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9478 mono_mb_emit_stloc (mb, uiid);
9480 /*if (uiid > vt->max_interface_id)*/
9481 mono_mb_emit_ldloc (mb, uiid);
9482 mono_mb_emit_ldloc (mb, vtable);
9483 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9484 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9485 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9487 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9489 /*vt->interface_bitmap*/
9490 mono_mb_emit_ldloc (mb, vtable);
9491 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9492 mono_mb_emit_byte (mb, CEE_LDIND_I);
9495 mono_mb_emit_ldloc (mb, uiid);
9496 mono_mb_emit_icon (mb, 3);
9497 mono_mb_emit_byte (mb, CEE_SHR_UN);
9499 /*vt->interface_bitmap [(uiid) >> 3]*/
9500 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9501 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9503 /*(1 << ((uiid)&7)))*/
9504 mono_mb_emit_icon (mb, 1);
9505 mono_mb_emit_ldloc (mb, uiid);
9506 mono_mb_emit_icon (mb, 7);
9507 mono_mb_emit_byte (mb, CEE_AND);
9508 mono_mb_emit_byte (mb, CEE_SHL);
9510 /*bitwise and the whole thing*/
9511 mono_mb_emit_byte (mb, CEE_AND);
9512 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9515 mono_mb_patch_branch (mb, b1);
9516 mono_mb_emit_ldloc (mb, array_slot_addr);
9517 mono_mb_emit_ldarg (mb, 2);
9518 mono_mb_emit_byte (mb, CEE_STIND_REF);
9519 mono_mb_emit_byte (mb, CEE_RET);
9522 mono_mb_patch_branch (mb, b2);
9523 mono_mb_patch_branch (mb, b3);
9524 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9528 mono_mb_emit_ldarg (mb, 0);
9529 mono_mb_emit_ldarg (mb, 1);
9530 mono_mb_emit_ldarg (mb, 2);
9531 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9532 mono_mb_emit_byte (mb, CEE_RET);
9535 #endif /* DISABLE_JIT */
9536 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9537 info->d.virtual_stelemref.kind = kind;
9538 res = mono_mb_create (mb, signature, 4, info);
9539 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9541 mono_marshal_lock ();
9542 if (!cached_methods [kind]) {
9543 cached_methods [kind] = res;
9544 mono_marshal_unlock ();
9546 mono_marshal_unlock ();
9547 mono_free_method (res);
9551 return cached_methods [kind];
9555 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9559 g_assert (array_class->rank == 1);
9560 kind = get_virtual_stelemref_kind (array_class->element_class);
9562 return get_virtual_stelemref_wrapper (kind);
9566 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9571 *nwrappers = STELEMREF_KIND_COUNT;
9572 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9573 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9574 res [i] = get_virtual_stelemref_wrapper (i);
9579 * The wrapper info for the wrapper is a WrapperInfo structure.
9582 mono_marshal_get_stelemref (void)
9584 static MonoMethod* ret = NULL;
9585 MonoMethodSignature *sig;
9586 MonoMethodBuilder *mb;
9589 guint32 b1, b2, b3, b4;
9592 int array_slot_addr;
9597 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9600 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9602 /* void stelemref (void* array, int idx, void* value) */
9603 sig->ret = &mono_defaults.void_class->byval_arg;
9604 sig->params [0] = &mono_defaults.object_class->byval_arg;
9605 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9606 sig->params [2] = &mono_defaults.object_class->byval_arg;
9609 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9610 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9611 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9615 <ldelema (bound check)>
9619 aklass = array->vtable->klass->element_class;
9620 vklass = value->vtable->klass;
9622 if (vklass->idepth < aklass->idepth)
9625 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9629 *array_slot_addr = value;
9633 if (mono_object_isinst (value, aklass))
9636 throw new ArrayTypeMismatchException ();
9639 /* ldelema (implicit bound check) */
9640 mono_mb_emit_ldarg (mb, 0);
9641 mono_mb_emit_ldarg (mb, 1);
9642 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9643 mono_mb_emit_stloc (mb, array_slot_addr);
9645 /* if (!value) goto do_store */
9646 mono_mb_emit_ldarg (mb, 2);
9647 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9649 /* aklass = array->vtable->klass->element_class */
9650 mono_mb_emit_ldarg (mb, 0);
9651 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9652 mono_mb_emit_byte (mb, CEE_LDIND_I);
9653 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9654 mono_mb_emit_byte (mb, CEE_LDIND_I);
9655 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9656 mono_mb_emit_byte (mb, CEE_LDIND_I);
9657 mono_mb_emit_stloc (mb, aklass);
9659 /* vklass = value->vtable->klass */
9660 mono_mb_emit_ldarg (mb, 2);
9661 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9662 mono_mb_emit_byte (mb, CEE_LDIND_I);
9663 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9664 mono_mb_emit_byte (mb, CEE_LDIND_I);
9665 mono_mb_emit_stloc (mb, vklass);
9667 /* if (vklass->idepth < aklass->idepth) goto failue */
9668 mono_mb_emit_ldloc (mb, vklass);
9669 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9670 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9672 mono_mb_emit_ldloc (mb, aklass);
9673 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9674 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9676 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9678 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9679 mono_mb_emit_ldloc (mb, vklass);
9680 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9681 mono_mb_emit_byte (mb, CEE_LDIND_I);
9683 mono_mb_emit_ldloc (mb, aklass);
9684 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9685 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9686 mono_mb_emit_icon (mb, 1);
9687 mono_mb_emit_byte (mb, CEE_SUB);
9688 mono_mb_emit_icon (mb, sizeof (void*));
9689 mono_mb_emit_byte (mb, CEE_MUL);
9690 mono_mb_emit_byte (mb, CEE_ADD);
9691 mono_mb_emit_byte (mb, CEE_LDIND_I);
9693 mono_mb_emit_ldloc (mb, aklass);
9695 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9697 copy_pos = mono_mb_get_label (mb);
9699 mono_mb_patch_branch (mb, b1);
9700 mono_mb_emit_ldloc (mb, array_slot_addr);
9701 mono_mb_emit_ldarg (mb, 2);
9702 mono_mb_emit_byte (mb, CEE_STIND_REF);
9704 mono_mb_emit_byte (mb, CEE_RET);
9707 mono_mb_patch_branch (mb, b2);
9708 mono_mb_patch_branch (mb, b3);
9710 mono_mb_emit_ldarg (mb, 2);
9711 mono_mb_emit_ldloc (mb, aklass);
9712 mono_mb_emit_icall (mb, mono_object_isinst);
9714 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9715 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9716 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9718 mono_mb_emit_byte (mb, CEE_RET);
9720 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9721 ret = mono_mb_create (mb, sig, 4, info);
9728 * mono_marshal_get_gsharedvt_in_wrapper:
9730 * This wrapper handles calls from normal code to gsharedvt code.
9732 * The wrapper info for the wrapper is a WrapperInfo structure.
9735 mono_marshal_get_gsharedvt_in_wrapper (void)
9737 static MonoMethod* ret = NULL;
9738 MonoMethodSignature *sig;
9739 MonoMethodBuilder *mb;
9745 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
9747 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9748 sig->ret = &mono_defaults.void_class->byval_arg;
9752 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9754 mono_mb_emit_byte (mb, CEE_RET);
9756 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
9757 ret = mono_mb_create (mb, sig, 4, info);
9764 * mono_marshal_get_gsharedvt_out_wrapper:
9766 * This wrapper handles calls from gsharedvt code to normal code.
9768 * The wrapper info for the wrapper is a WrapperInfo structure.
9771 mono_marshal_get_gsharedvt_out_wrapper (void)
9773 static MonoMethod* ret = NULL;
9774 MonoMethodSignature *sig;
9775 MonoMethodBuilder *mb;
9781 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
9783 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9784 sig->ret = &mono_defaults.void_class->byval_arg;
9788 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9790 mono_mb_emit_byte (mb, CEE_RET);
9792 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
9793 ret = mono_mb_create (mb, sig, 4, info);
9805 /* LOCKING: vars accessed under the marshal lock */
9806 static ArrayElemAddr *elem_addr_cache = NULL;
9807 static int elem_addr_cache_size = 0;
9808 static int elem_addr_cache_next = 0;
9811 * mono_marshal_get_array_address:
9812 * @rank: rank of the array type
9813 * @elem_size: size in bytes of an element of an array.
9815 * Returns a MonoMethod that implements the code to get the address
9816 * of an element in a multi-dimenasional array of @rank dimensions.
9817 * The returned method takes an array as the first argument and then
9818 * @rank indexes for the @rank dimensions.
9819 * If ELEM_SIZE is 0, read the array size from the array object.
9822 mono_marshal_get_array_address (int rank, int elem_size)
9825 MonoMethodBuilder *mb;
9826 MonoMethodSignature *sig;
9829 int i, bounds, ind, realidx;
9830 int branch_pos, *branch_positions;
9834 mono_marshal_lock ();
9835 for (i = 0; i < elem_addr_cache_next; ++i) {
9836 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9837 ret = elem_addr_cache [i].method;
9841 mono_marshal_unlock ();
9845 branch_positions = g_new0 (int, rank);
9847 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9849 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9850 sig->ret = &mono_defaults.int_class->byval_arg;
9851 sig->params [0] = &mono_defaults.object_class->byval_arg;
9852 for (i = 0; i < rank; ++i) {
9853 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9856 name = g_strdup_printf ("ElementAddr_%d", elem_size);
9857 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9861 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9862 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9863 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9865 /* bounds = array->bounds; */
9866 mono_mb_emit_ldarg (mb, 0);
9867 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
9868 mono_mb_emit_byte (mb, CEE_LDIND_I);
9869 mono_mb_emit_stloc (mb, bounds);
9871 /* ind is the overall element index, realidx is the partial index in a single dimension */
9872 /* ind = idx0 - bounds [0].lower_bound */
9873 mono_mb_emit_ldarg (mb, 1);
9874 mono_mb_emit_ldloc (mb, bounds);
9875 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9876 mono_mb_emit_byte (mb, CEE_ADD);
9877 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9878 mono_mb_emit_byte (mb, CEE_SUB);
9879 mono_mb_emit_stloc (mb, ind);
9880 /* if (ind >= bounds [0].length) goto exeception; */
9881 mono_mb_emit_ldloc (mb, ind);
9882 mono_mb_emit_ldloc (mb, bounds);
9883 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9884 mono_mb_emit_byte (mb, CEE_ADD);
9885 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9886 /* note that we use unsigned comparison */
9887 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9889 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9890 * We could also decide to ignore the passed elem_size and get it
9891 * from the array object, to reduce the number of methods we generate:
9892 * the additional cost is 3 memory loads and a non-immediate mul.
9894 for (i = 1; i < rank; ++i) {
9895 /* realidx = idxi - bounds [i].lower_bound */
9896 mono_mb_emit_ldarg (mb, 1 + i);
9897 mono_mb_emit_ldloc (mb, bounds);
9898 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9899 mono_mb_emit_byte (mb, CEE_ADD);
9900 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9901 mono_mb_emit_byte (mb, CEE_SUB);
9902 mono_mb_emit_stloc (mb, realidx);
9903 /* if (realidx >= bounds [i].length) goto exeception; */
9904 mono_mb_emit_ldloc (mb, realidx);
9905 mono_mb_emit_ldloc (mb, bounds);
9906 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9907 mono_mb_emit_byte (mb, CEE_ADD);
9908 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9909 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9910 /* ind = ind * bounds [i].length + realidx */
9911 mono_mb_emit_ldloc (mb, ind);
9912 mono_mb_emit_ldloc (mb, bounds);
9913 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9914 mono_mb_emit_byte (mb, CEE_ADD);
9915 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9916 mono_mb_emit_byte (mb, CEE_MUL);
9917 mono_mb_emit_ldloc (mb, realidx);
9918 mono_mb_emit_byte (mb, CEE_ADD);
9919 mono_mb_emit_stloc (mb, ind);
9922 /* return array->vector + ind * element_size */
9923 mono_mb_emit_ldarg (mb, 0);
9924 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
9925 mono_mb_emit_ldloc (mb, ind);
9927 mono_mb_emit_icon (mb, elem_size);
9929 /* Load arr->vtable->klass->sizes.element_class */
9930 mono_mb_emit_ldarg (mb, 0);
9931 mono_mb_emit_byte (mb, CEE_CONV_I);
9932 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9933 mono_mb_emit_byte (mb, CEE_ADD);
9934 mono_mb_emit_byte (mb, CEE_LDIND_I);
9935 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9936 mono_mb_emit_byte (mb, CEE_ADD);
9937 mono_mb_emit_byte (mb, CEE_LDIND_I);
9938 /* sizes is an union, so this reads sizes.element_size */
9939 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
9940 mono_mb_emit_byte (mb, CEE_ADD);
9941 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9943 mono_mb_emit_byte (mb, CEE_MUL);
9944 mono_mb_emit_byte (mb, CEE_ADD);
9945 mono_mb_emit_byte (mb, CEE_RET);
9947 /* patch the branches to get here and throw */
9948 for (i = 1; i < rank; ++i) {
9949 mono_mb_patch_branch (mb, branch_positions [i]);
9951 mono_mb_patch_branch (mb, branch_pos);
9952 /* throw exception */
9953 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9955 g_free (branch_positions);
9956 #endif /* DISABLE_JIT */
9958 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
9959 info->d.element_addr.rank = rank;
9960 info->d.element_addr.elem_size = elem_size;
9961 ret = mono_mb_create (mb, sig, 4, info);
9964 /* cache the result */
9966 mono_marshal_lock ();
9967 for (i = 0; i < elem_addr_cache_next; ++i) {
9968 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9969 /* FIXME: free ret */
9970 ret = elem_addr_cache [i].method;
9976 if (elem_addr_cache_next >= elem_addr_cache_size) {
9977 int new_size = elem_addr_cache_size + 4;
9978 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9979 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9980 g_free (elem_addr_cache);
9981 elem_addr_cache = new_array;
9982 elem_addr_cache_size = new_size;
9984 elem_addr_cache [elem_addr_cache_next].rank = rank;
9985 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9986 elem_addr_cache [elem_addr_cache_next].method = ret;
9987 elem_addr_cache_next ++;
9989 mono_marshal_unlock ();
9994 * mono_marshal_get_array_accessor_wrapper:
9996 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
9999 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10001 MonoMethodSignature *sig;
10002 MonoMethodBuilder *mb;
10006 MonoGenericContext *ctx = NULL;
10007 MonoMethod *orig_method = NULL;
10008 MonoGenericContainer *container = NULL;
10012 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10013 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10014 * FIXME: Use generic methods.
10021 g_assert_not_reached ();
10023 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10024 if ((res = mono_marshal_find_in_cache (cache, method)))
10028 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10031 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10033 #ifndef DISABLE_JIT
10034 /* Call the method */
10036 mono_mb_emit_ldarg (mb, 0);
10037 for (i = 0; i < sig->param_count; i++)
10038 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10042 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10043 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10045 mono_mb_emit_managed_call (mb, method, NULL);
10047 mono_mb_emit_byte (mb, CEE_RET);
10050 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10051 info->d.array_accessor.method = method;
10055 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10056 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10058 res = mono_mb_create_and_cache_full (cache, method,
10059 mb, sig, sig->param_count + 16,
10068 mono_marshal_alloc (gulong size, MonoError *error)
10072 mono_error_init (error);
10075 res = CoTaskMemAlloc (size);
10077 res = g_try_malloc ((gulong)size);
10079 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
10085 ves_icall_marshal_alloc (gulong size)
10088 void *ret = mono_marshal_alloc (size, &error);
10089 mono_error_raise_exception (&error);
10095 mono_marshal_free (gpointer ptr)
10098 CoTaskMemFree (ptr);
10105 mono_marshal_free_array (gpointer *ptr, int size)
10112 for (i = 0; i < size; i++)
10118 mono_marshal_string_to_utf16 (MonoString *s)
10120 return s ? mono_string_chars (s) : NULL;
10124 mono_marshal_string_to_utf16_copy (MonoString *s)
10130 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10131 mono_error_raise_exception (&error); /* FIXME don't raise here */
10132 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10133 res [mono_string_length (s)] = 0;
10139 * mono_marshal_set_last_error:
10141 * This function is invoked to set the last error value from a P/Invoke call
10142 * which has SetLastError set.
10145 mono_marshal_set_last_error (void)
10148 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10150 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10155 mono_marshal_set_last_error_windows (int error)
10158 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10163 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10164 gpointer dest, gint32 length)
10169 MONO_CHECK_ARG_NULL (src,);
10170 MONO_CHECK_ARG_NULL (dest,);
10172 if (src->obj.vtable->klass->rank != 1) {
10173 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10176 if (start_index < 0) {
10177 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10181 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10184 if (start_index + length > mono_array_length (src)) {
10185 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10189 element_size = mono_array_element_size (src->obj.vtable->klass);
10191 /* no references should be involved */
10192 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10194 memcpy (dest, source_addr, length * element_size);
10198 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10199 MonoArray *dest, gint32 length)
10204 MONO_CHECK_ARG_NULL (src,);
10205 MONO_CHECK_ARG_NULL (dest,);
10207 if (dest->obj.vtable->klass->rank != 1) {
10208 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10211 if (start_index < 0) {
10212 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10216 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10219 if (start_index + length > mono_array_length (dest)) {
10220 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10223 element_size = mono_array_element_size (dest->obj.vtable->klass);
10225 /* no references should be involved */
10226 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10228 memcpy (dest_addr, src, length * element_size);
10232 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10237 return mono_string_new (mono_domain_get (), ptr);
10241 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10244 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10247 return mono_string_new_len (mono_domain_get (), ptr, len);
10252 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10254 MonoDomain *domain = mono_domain_get ();
10264 return mono_string_new_utf16 (domain, ptr, len);
10268 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10270 MonoDomain *domain = mono_domain_get ();
10273 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10276 return mono_string_new_utf16 (domain, ptr, len);
10281 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10283 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10287 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10293 MONO_CHECK_ARG_NULL (rtype, 0);
10295 type = rtype->type;
10296 klass = mono_class_from_mono_type (type);
10297 if (!mono_class_init (klass)) {
10298 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10302 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10304 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10305 return sizeof (gpointer);
10306 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10308 MonoException *exc;
10310 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10311 exc = mono_get_exception_argument ("t", msg);
10313 mono_set_pending_exception (exc);
10317 return mono_class_native_size (klass, NULL);
10321 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10323 MonoMethod *method;
10326 MONO_CHECK_ARG_NULL (obj,);
10327 MONO_CHECK_ARG_NULL (dst,);
10329 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10333 pa [2] = &delete_old;
10335 mono_runtime_invoke (method, NULL, pa, NULL);
10339 ptr_to_structure (gpointer src, MonoObject *dst)
10341 MonoMethod *method;
10344 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10349 mono_runtime_invoke (method, NULL, pa, NULL);
10353 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10357 MONO_CHECK_ARG_NULL (src,);
10358 MONO_CHECK_ARG_NULL (dst,);
10360 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10362 if (t->type == MONO_TYPE_VALUETYPE) {
10363 MonoException *exc;
10366 tmp = g_strdup_printf ("Destination is a boxed value type.");
10367 exc = mono_get_exception_argument ("dst", tmp);
10370 mono_set_pending_exception (exc);
10374 ptr_to_structure (src, dst);
10378 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10381 MonoDomain *domain = mono_domain_get ();
10386 MONO_CHECK_ARG_NULL (type, NULL);
10388 klass = mono_class_from_mono_type (type->type);
10389 if (!mono_class_init (klass)) {
10390 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10394 res = mono_object_new (domain, klass);
10396 ptr_to_structure (src, res);
10402 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10404 MonoMarshalType *info;
10407 int match_index = -1;
10409 MONO_CHECK_ARG_NULL (type, 0);
10410 MONO_CHECK_ARG_NULL (field_name, 0);
10412 fname = mono_string_to_utf8 (field_name);
10413 klass = mono_class_from_mono_type (type->type);
10414 if (!mono_class_init (klass)) {
10415 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10419 while (klass && match_index == -1) {
10420 MonoClassField* field;
10422 gpointer iter = NULL;
10423 while ((field = mono_class_get_fields (klass, &iter))) {
10424 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10426 if (!strcmp (fname, mono_field_get_name (field))) {
10433 if (match_index == -1)
10434 klass = klass->parent;
10439 if(match_index == -1) {
10440 MonoException* exc;
10443 /* Get back original class instance */
10444 klass = mono_class_from_mono_type (type->type);
10446 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10447 exc = mono_get_exception_argument ("fieldName", tmp);
10450 mono_set_pending_exception ((MonoException*)exc);
10454 info = mono_marshal_load_type_info (klass);
10455 return info->fields [match_index].offset;
10459 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10464 tres = mono_string_to_utf8 (string);
10468 len = strlen (tres) + 1;
10469 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10470 memcpy (ret, tres, len);
10475 return mono_string_to_utf8 (string);
10480 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10482 if (string == NULL)
10485 #ifdef TARGET_WIN32
10486 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10487 ((mono_string_length (string) + 1) * 2);
10489 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
10491 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10492 res [mono_string_length (string)] = 0;
10498 mono_struct_delete_old (MonoClass *klass, char *ptr)
10500 MonoMarshalType *info;
10503 info = mono_marshal_load_type_info (klass);
10505 for (i = 0; i < info->num_fields; i++) {
10506 MonoMarshalConv conv;
10507 MonoType *ftype = info->fields [i].field->type;
10510 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10513 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10514 klass->unicode, &conv);
10516 cpos = ptr + info->fields [i].offset;
10519 case MONO_MARSHAL_CONV_NONE:
10520 if (MONO_TYPE_ISSTRUCT (ftype)) {
10521 mono_struct_delete_old (ftype->data.klass, cpos);
10525 case MONO_MARSHAL_CONV_STR_LPWSTR:
10526 /* We assume this field points inside a MonoString */
10528 case MONO_MARSHAL_CONV_STR_LPTSTR:
10529 #ifdef TARGET_WIN32
10530 /* We assume this field points inside a MonoString
10534 case MONO_MARSHAL_CONV_STR_LPSTR:
10535 case MONO_MARSHAL_CONV_STR_BSTR:
10536 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10537 case MONO_MARSHAL_CONV_STR_TBSTR:
10538 mono_marshal_free (*(gpointer *)cpos);
10548 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10552 MONO_CHECK_ARG_NULL (src,);
10553 MONO_CHECK_ARG_NULL (type,);
10555 klass = mono_class_from_mono_type (type->type);
10556 if (!mono_class_init (klass)) {
10557 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10561 mono_struct_delete_old (klass, (char *)src);
10565 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
10568 size_t s = (size_t)size;
10571 /* This returns a valid pointer for size 0 on MS.NET */
10575 res = GlobalAlloc (GMEM_FIXED, s);
10577 res = g_try_malloc (s);
10580 mono_raise_exception (mono_domain_get ()->out_of_memory_ex);
10586 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
10589 size_t s = (size_t)size;
10592 mono_raise_exception (mono_domain_get ()->out_of_memory_ex);
10597 res = GlobalReAlloc (ptr, s, GMEM_MOVEABLE);
10599 res = g_try_realloc (ptr, s);
10602 mono_raise_exception (mono_domain_get ()->out_of_memory_ex);
10608 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10618 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10623 res = CoTaskMemAlloc (size);
10625 if ((gulong)size == 0)
10626 /* This returns a valid pointer for size 0 on MS.NET */
10629 res = g_try_malloc ((gulong)size);
10632 mono_raise_exception (mono_domain_get ()->out_of_memory_ex);
10637 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10640 CoTaskMemFree (ptr);
10647 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10652 res = CoTaskMemRealloc (ptr, size);
10654 res = g_try_realloc (ptr, (gulong)size);
10657 mono_raise_exception (mono_domain_get ()->out_of_memory_ex);
10662 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10664 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10668 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10670 MonoClass *klass = mono_type_get_class (type->type);
10671 if (!mono_class_init (klass)) {
10672 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10676 return mono_ftnptr_to_delegate (klass, ftn);
10680 * mono_marshal_is_loading_type_info:
10682 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10686 mono_marshal_is_loading_type_info (MonoClass *klass)
10688 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
10690 return g_slist_find (loads_list, klass) != NULL;
10694 * mono_marshal_load_type_info:
10696 * Initialize klass->marshal_info using information from metadata. This function can
10697 * recursively call itself, and the caller is responsible to avoid that by calling
10698 * mono_marshal_is_loading_type_info () beforehand.
10700 * LOCKING: Acquires the loader lock.
10703 mono_marshal_load_type_info (MonoClass* klass)
10706 guint32 native_size = 0, min_align = 1, packing;
10707 MonoMarshalType *info;
10708 MonoClassField* field;
10711 GSList *loads_list;
10713 g_assert (klass != NULL);
10715 if (klass->marshal_info)
10716 return klass->marshal_info;
10718 if (!klass->inited)
10719 mono_class_init (klass);
10721 if (klass->marshal_info)
10722 return klass->marshal_info;
10725 * This function can recursively call itself, so we keep the list of classes which are
10726 * under initialization in a TLS list.
10728 g_assert (!mono_marshal_is_loading_type_info (klass));
10729 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
10730 loads_list = g_slist_prepend (loads_list, klass);
10731 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10734 while ((field = mono_class_get_fields (klass, &iter))) {
10735 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10737 if (mono_field_is_deleted (field))
10742 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10744 /* The mempool is protected by the loader lock */
10745 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
10746 info->num_fields = count;
10748 /* Try to find a size for this type in metadata */
10749 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10751 if (klass->parent) {
10752 int parent_size = mono_class_native_size (klass->parent, NULL);
10754 /* Add parent size to real size */
10755 native_size += parent_size;
10756 info->native_size = parent_size;
10759 packing = klass->packing_size ? klass->packing_size : 8;
10762 while ((field = mono_class_get_fields (klass, &iter))) {
10766 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10769 if (mono_field_is_deleted (field))
10771 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10772 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10773 NULL, NULL, &info->fields [j].mspec);
10775 info->fields [j].field = field;
10777 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10778 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
10779 /* This field is a hack inserted by MCS to empty structures */
10784 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10785 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10786 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10787 &align, TRUE, klass->unicode);
10788 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10789 min_align = MAX (align, min_align);
10790 info->fields [j].offset = info->native_size;
10791 info->fields [j].offset += align - 1;
10792 info->fields [j].offset &= ~(align - 1);
10793 info->native_size = info->fields [j].offset + size;
10795 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10796 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10797 &align, TRUE, klass->unicode);
10798 min_align = MAX (align, min_align);
10799 info->fields [j].offset = field->offset - sizeof (MonoObject);
10800 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10806 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10807 info->native_size = MAX (native_size, info->native_size);
10809 * If the provided Size is equal or larger than the calculated size, and there
10810 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
10812 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
10813 if (native_size && native_size == info->native_size && klass->packing_size == 0)
10816 min_align = MIN (min_align, packing);
10820 if (info->native_size & (min_align - 1)) {
10821 info->native_size += min_align - 1;
10822 info->native_size &= ~(min_align - 1);
10825 info->min_align = min_align;
10827 /* Update the class's blittable info, if the layouts don't match */
10828 if (info->native_size != mono_class_value_size (klass, NULL))
10829 klass->blittable = FALSE;
10831 /* If this is an array type, ensure that we have element info */
10832 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
10833 mono_marshal_load_type_info (klass->element_class);
10836 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
10837 loads_list = g_slist_remove (loads_list, klass);
10838 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10840 mono_marshal_lock ();
10841 if (!klass->marshal_info) {
10842 /*We do double-checking locking on marshal_info */
10843 mono_memory_barrier ();
10844 klass->marshal_info = info;
10846 mono_marshal_unlock ();
10848 return klass->marshal_info;
10852 * mono_class_native_size:
10855 * Returns: the native size of an object instance (when marshaled
10856 * to unmanaged code)
10859 mono_class_native_size (MonoClass *klass, guint32 *align)
10861 if (!klass->marshal_info) {
10862 if (mono_marshal_is_loading_type_info (klass)) {
10867 mono_marshal_load_type_info (klass);
10872 *align = klass->marshal_info->min_align;
10874 return klass->marshal_info->native_size;
10878 * mono_type_native_stack_size:
10879 * @t: the type to return the size it uses on the stack
10881 * Returns: the number of bytes required to hold an instance of this
10882 * type on the native stack
10885 mono_type_native_stack_size (MonoType *t, guint32 *align)
10889 g_assert (t != NULL);
10895 *align = sizeof (gpointer);
10896 return sizeof (gpointer);
10900 case MONO_TYPE_BOOLEAN:
10901 case MONO_TYPE_CHAR:
10912 case MONO_TYPE_STRING:
10913 case MONO_TYPE_OBJECT:
10914 case MONO_TYPE_CLASS:
10915 case MONO_TYPE_SZARRAY:
10916 case MONO_TYPE_PTR:
10917 case MONO_TYPE_FNPTR:
10918 case MONO_TYPE_ARRAY:
10919 *align = sizeof (gpointer);
10920 return sizeof (gpointer);
10925 *align = MONO_ABI_ALIGNOF (double);
10929 *align = MONO_ABI_ALIGNOF (gint64);
10931 case MONO_TYPE_GENERICINST:
10932 if (!mono_type_generic_inst_is_valuetype (t)) {
10933 *align = sizeof (gpointer);
10934 return sizeof (gpointer);
10937 case MONO_TYPE_TYPEDBYREF:
10938 case MONO_TYPE_VALUETYPE: {
10940 MonoClass *klass = mono_class_from_mono_type (t);
10942 if (klass->enumtype)
10943 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
10945 size = mono_class_native_size (klass, align);
10946 *align = *align + 3;
10956 g_error ("type 0x%02x unknown", t->type);
10962 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
10963 gboolean as_field, gboolean unicode)
10965 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
10968 switch (native_type) {
10969 case MONO_NATIVE_BOOLEAN:
10972 case MONO_NATIVE_I1:
10973 case MONO_NATIVE_U1:
10976 case MONO_NATIVE_I2:
10977 case MONO_NATIVE_U2:
10978 case MONO_NATIVE_VARIANTBOOL:
10981 case MONO_NATIVE_I4:
10982 case MONO_NATIVE_U4:
10983 case MONO_NATIVE_ERROR:
10986 case MONO_NATIVE_I8:
10987 case MONO_NATIVE_U8:
10988 *align = MONO_ABI_ALIGNOF (gint64);
10990 case MONO_NATIVE_R4:
10993 case MONO_NATIVE_R8:
10994 *align = MONO_ABI_ALIGNOF (double);
10996 case MONO_NATIVE_INT:
10997 case MONO_NATIVE_UINT:
10998 case MONO_NATIVE_LPSTR:
10999 case MONO_NATIVE_LPWSTR:
11000 case MONO_NATIVE_LPTSTR:
11001 case MONO_NATIVE_BSTR:
11002 case MONO_NATIVE_ANSIBSTR:
11003 case MONO_NATIVE_TBSTR:
11004 case MONO_NATIVE_LPARRAY:
11005 case MONO_NATIVE_SAFEARRAY:
11006 case MONO_NATIVE_IUNKNOWN:
11007 case MONO_NATIVE_IDISPATCH:
11008 case MONO_NATIVE_INTERFACE:
11009 case MONO_NATIVE_ASANY:
11010 case MONO_NATIVE_FUNC:
11011 case MONO_NATIVE_LPSTRUCT:
11012 *align = MONO_ABI_ALIGNOF (gpointer);
11013 return sizeof (gpointer);
11014 case MONO_NATIVE_STRUCT:
11015 klass = mono_class_from_mono_type (type);
11016 if (klass == mono_defaults.object_class &&
11017 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11021 return mono_class_native_size (klass, align);
11022 case MONO_NATIVE_BYVALTSTR: {
11023 int esize = unicode ? 2: 1;
11026 return mspec->data.array_data.num_elem * esize;
11028 case MONO_NATIVE_BYVALARRAY: {
11029 // FIXME: Have to consider ArraySubType
11031 klass = mono_class_from_mono_type (type);
11032 if (klass->element_class == mono_defaults.char_class) {
11033 esize = unicode ? 2 : 1;
11036 esize = mono_class_native_size (klass->element_class, align);
11039 return mspec->data.array_data.num_elem * esize;
11041 case MONO_NATIVE_CUSTOM:
11042 *align = sizeof (gpointer);
11043 return sizeof (gpointer);
11045 case MONO_NATIVE_CURRENCY:
11046 case MONO_NATIVE_VBBYREFSTR:
11048 g_error ("native type %02x not implemented", native_type);
11051 g_assert_not_reached ();
11056 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11065 t = &o->vtable->klass->byval_arg;
11069 case MONO_TYPE_PTR:
11072 case MONO_TYPE_BOOLEAN:
11075 case MONO_TYPE_CHAR:
11080 return mono_object_unbox (o);
11082 case MONO_TYPE_STRING:
11083 switch (string_encoding) {
11084 case MONO_NATIVE_LPWSTR:
11085 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11087 case MONO_NATIVE_LPSTR:
11088 return mono_string_to_lpstr ((MonoString*)o);
11091 g_warning ("marshaling conversion %d not implemented", string_encoding);
11092 g_assert_not_reached ();
11095 case MONO_TYPE_CLASS:
11096 case MONO_TYPE_VALUETYPE: {
11097 MonoMethod *method;
11100 MonoBoolean delete_old = FALSE;
11102 klass = t->data.klass;
11104 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11107 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11108 klass->blittable || klass->enumtype))
11109 return mono_object_unbox (o);
11111 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11112 mono_error_raise_exception (&error); /* FIXME don't raise here */
11114 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11115 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11119 pa [2] = &delete_old;
11121 mono_runtime_invoke (method, NULL, pa, NULL);
11129 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11134 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11142 t = &o->vtable->klass->byval_arg;
11144 case MONO_TYPE_STRING:
11145 switch (string_encoding) {
11146 case MONO_NATIVE_LPWSTR:
11147 case MONO_NATIVE_LPSTR:
11148 mono_marshal_free (ptr);
11151 g_warning ("marshaling conversion %d not implemented", string_encoding);
11152 g_assert_not_reached ();
11155 case MONO_TYPE_CLASS:
11156 case MONO_TYPE_VALUETYPE: {
11157 klass = t->data.klass;
11159 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11160 klass->blittable || klass->enumtype))
11163 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11164 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11170 mono_runtime_invoke (method, NULL, pa, NULL);
11173 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11174 mono_struct_delete_old (klass, (char *)ptr);
11177 mono_marshal_free (ptr);
11186 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11188 MonoMethodSignature *sig, *csig;
11189 MonoMethodBuilder *mb;
11194 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11195 mb->method->slot = -1;
11197 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11198 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11200 sig = mono_method_signature (method);
11201 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11202 csig->generic_param_count = 0;
11204 #ifndef DISABLE_JIT
11205 mono_mb_emit_ldarg (mb, 0);
11206 for (i = 0; i < csig->param_count; i++)
11207 mono_mb_emit_ldarg (mb, i + 1);
11208 mono_mb_emit_managed_call (mb, method, NULL);
11209 mono_mb_emit_byte (mb, CEE_RET);
11211 /* We can corlib internal methods */
11212 mb->skip_visibility = TRUE;
11214 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11215 info->d.generic_array_helper.method = method;
11216 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11224 * The mono_win32_compat_* functions are implementations of inline
11225 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11226 * although not exported by kernel32.
11228 * We map the appropiate kernel32 entries to these functions using
11229 * dllmaps declared in the global etc/mono/config.
11233 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11235 if (!dest || !source)
11238 memcpy (dest, source, length);
11242 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11244 memset (dest, fill, length);
11248 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11250 if (!dest || !source)
11253 memmove (dest, source, length);
11257 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11259 memset (dest, 0, length);
11263 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11268 for (i = 0; i < len; ++i)
11272 g_assert (i < len);
11275 while (byte && !(byte & 1))
11277 g_assert (byte == 1);
11280 *bitmask = buf [i];
11284 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11286 MonoMethodBuilder *mb;
11287 MonoMethodSignature *sig, *csig;
11288 MonoExceptionClause *clause;
11293 int i, param_count, sig_size, pos_leave;
11294 int coop_gc_var, coop_gc_dummy_local;
11298 klass = method->klass;
11299 image = method->klass->image;
11301 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11303 if ((res = mono_marshal_find_in_cache (cache, method)))
11306 sig = mono_method_signature (method);
11307 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11309 /* add "this" and exception param */
11310 param_count = sig->param_count + sig->hasthis + 1;
11312 /* dup & extend signature */
11313 csig = mono_metadata_signature_alloc (image, param_count);
11314 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11315 memcpy (csig, sig, sig_size);
11316 csig->param_count = param_count;
11319 csig->call_convention = MONO_CALL_DEFAULT;
11321 if (sig->hasthis) {
11323 csig->params [0] = &klass->byval_arg;
11324 /* move params up by one */
11325 for (i = 0; i < sig->param_count; i++)
11326 csig->params [i + 1] = sig->params [i];
11329 /* setup exception param as byref+[out] */
11330 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11331 &mono_defaults.exception_class->byval_arg);
11332 csig->params [param_count - 1]->byref = 1;
11333 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11335 /* convert struct return to object */
11336 if (MONO_TYPE_ISSTRUCT (sig->ret))
11337 csig->ret = &mono_defaults.object_class->byval_arg;
11339 #ifndef DISABLE_JIT
11340 /* local 0 (temp for exception object) */
11341 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11343 /* local 1 (temp for result) */
11344 if (!MONO_TYPE_IS_VOID (sig->ret))
11345 mono_mb_add_local (mb, sig->ret);
11347 if (mono_threads_is_coop_enabled ()) {
11348 /* local 4, the local to be used when calling the reset_blocking funcs */
11349 /* tons of code hardcode 3 to be the return var */
11350 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11351 /* local 5, the local used to get a stack address for suspend funcs */
11352 coop_gc_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11355 /* clear exception arg */
11356 mono_mb_emit_ldarg (mb, param_count - 1);
11357 mono_mb_emit_byte (mb, CEE_LDNULL);
11358 mono_mb_emit_byte (mb, CEE_STIND_REF);
11360 if (mono_threads_is_coop_enabled ()) {
11361 /* FIXME this is technically wrong as the callback itself must be executed in gc unsafe context. */
11362 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11363 mono_mb_emit_icall (mb, mono_threads_reset_blocking_start);
11364 mono_mb_emit_stloc (mb, coop_gc_var);
11368 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11369 clause->try_offset = mono_mb_get_label (mb);
11371 /* push method's args */
11372 for (i = 0; i < param_count - 1; i++) {
11376 mono_mb_emit_ldarg (mb, i);
11378 /* get the byval type of the param */
11379 klass = mono_class_from_mono_type (csig->params [i]);
11380 type = &klass->byval_arg;
11382 /* unbox struct args */
11383 if (MONO_TYPE_ISSTRUCT (type)) {
11384 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11386 /* byref args & and the "this" arg must remain a ptr.
11387 Otherwise make a copy of the value type */
11388 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11389 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11391 csig->params [i] = &mono_defaults.object_class->byval_arg;
11396 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11397 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11399 mono_mb_emit_op (mb, CEE_CALL, method);
11401 /* save result at local 1 */
11402 if (!MONO_TYPE_IS_VOID (sig->ret))
11403 mono_mb_emit_stloc (mb, 1);
11405 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11408 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11409 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11410 clause->data.catch_class = mono_defaults.object_class;
11412 clause->handler_offset = mono_mb_get_label (mb);
11414 /* store exception at local 0 */
11415 mono_mb_emit_stloc (mb, 0);
11416 mono_mb_emit_ldarg (mb, param_count - 1);
11417 mono_mb_emit_ldloc (mb, 0);
11418 mono_mb_emit_byte (mb, CEE_STIND_REF);
11419 mono_mb_emit_branch (mb, CEE_LEAVE);
11421 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11423 mono_mb_set_clauses (mb, 1, clause);
11425 mono_mb_patch_branch (mb, pos_leave);
11428 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11429 mono_mb_emit_ldloc (mb, 1);
11431 /* box the return value */
11432 if (MONO_TYPE_ISSTRUCT (sig->ret))
11433 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11436 if (mono_threads_is_coop_enabled ()) {
11437 /* XXX merge reset_blocking_end with detach */
11438 mono_mb_emit_ldloc (mb, coop_gc_var);
11439 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11440 mono_mb_emit_icall (mb, mono_threads_reset_blocking_end);
11443 mono_mb_emit_byte (mb, CEE_RET);
11446 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11453 * mono_marshal_free_dynamic_wrappers:
11455 * Free wrappers of the dynamic method METHOD.
11458 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11460 MonoImage *image = method->klass->image;
11462 g_assert (method_is_dynamic (method));
11464 /* This could be called during shutdown */
11465 if (marshal_mutex_initialized)
11466 mono_marshal_lock ();
11468 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11469 * they could be shared with other methods ?
11471 if (image->wrapper_caches.runtime_invoke_direct_cache)
11472 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11473 if (image->wrapper_caches.delegate_abstract_invoke_cache)
11474 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11475 // FIXME: Need to clear the caches in other images as well
11476 if (image->delegate_bound_static_invoke_cache)
11477 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11479 if (marshal_mutex_initialized)
11480 mono_marshal_unlock ();