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-internal.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-internal.h"
38 #include "mono/metadata/cominterop.h"
39 #include "mono/metadata/remoting.h"
40 #include "mono/metadata/reflection-internals.h"
41 #include "mono/metadata/threadpool-ms.h"
42 #include "mono/utils/mono-counters.h"
43 #include "mono/utils/mono-tls.h"
44 #include "mono/utils/mono-memory-model.h"
45 #include "mono/utils/atomic.h"
46 #include <mono/utils/mono-threads.h>
51 /* #define DEBUG_RUNTIME_CODE */
53 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
57 #include "mono/cil/opcode.def"
63 * This mutex protects the various marshalling related caches in MonoImage
64 * and a few other data structures static to this file.
66 * The marshal lock is a non-recursive complex lock that sits below the domain lock in the
67 * runtime locking latice. Which means it can take simple locks suck as the image lock.
69 #define mono_marshal_lock() mono_locks_acquire (&marshal_mutex, MarshalLock)
70 #define mono_marshal_unlock() mono_locks_release (&marshal_mutex, MarshalLock)
71 static mono_mutex_t marshal_mutex;
72 static gboolean marshal_mutex_initialized;
74 static MonoNativeTlsKey last_error_tls_id;
76 static MonoNativeTlsKey load_type_info_tls_id;
78 static gboolean use_aot_wrappers;
81 delegate_hash_table_add (MonoDelegate *d);
84 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
87 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, MonoMarshalNative string_encoding);
90 mono_struct_delete_old (MonoClass *klass, char *ptr);
93 mono_marshal_string_to_utf16 (MonoString *s);
96 mono_marshal_string_to_utf16_copy (MonoString *s);
99 mono_string_to_lpstr (MonoString *string_obj);
101 static MonoStringBuilder *
102 mono_string_utf8_to_builder2 (char *text);
104 static MonoStringBuilder *
105 mono_string_utf16_to_builder2 (gunichar2 *text);
108 mono_string_new_len_wrapper (const char *text, guint length);
111 mono_string_from_byvalstr (const char *data, int len);
114 mono_string_from_byvalwstr (gunichar2 *data, int len);
117 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
120 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum);
123 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
126 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum);
128 static MonoAsyncResult *
129 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
132 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
135 mono_marshal_set_last_error_windows (int error);
138 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache);
140 static void init_safe_handle (void);
142 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
143 static MonoMethod *sh_dangerous_add_ref;
144 static MonoMethod *sh_dangerous_release;
150 sh_dangerous_add_ref = mono_class_get_method_from_name (
151 mono_defaults.safehandle_class, "DangerousAddRef", 1);
152 sh_dangerous_release = mono_class_get_method_from_name (
153 mono_defaults.safehandle_class, "DangerousRelease", 0);
157 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
159 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
161 mono_register_jit_icall (func, name, sig, save);
165 mono_signature_no_pinvoke (MonoMethod *method)
167 MonoMethodSignature *sig = mono_method_signature (method);
169 sig = mono_metadata_signature_dup_full (method->klass->image, sig);
170 sig->pinvoke = FALSE;
177 mono_marshal_init_tls (void)
179 mono_native_tls_alloc (&last_error_tls_id, NULL);
180 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
184 mono_marshal_init (void)
186 static gboolean module_initialized = FALSE;
188 if (!module_initialized) {
189 module_initialized = TRUE;
190 mono_mutex_init_recursive (&marshal_mutex);
191 marshal_mutex_initialized = TRUE;
193 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
194 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
195 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
196 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
197 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
198 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
199 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
200 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
201 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
202 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
203 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
204 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
205 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
206 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
207 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
208 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
209 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
210 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
211 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
212 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
213 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
214 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
215 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
216 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
217 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
218 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
219 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
220 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
221 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
222 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
223 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
224 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
225 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
226 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
227 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
228 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
229 register_icall (g_free, "g_free", "void ptr", FALSE);
230 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
231 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
232 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
233 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
234 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
235 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
236 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
237 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
238 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
239 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
241 mono_cominterop_init ();
242 mono_remoting_init ();
245 register_icall (mono_threads_prepare_blocking, "mono_threads_prepare_blocking", "int", FALSE);
246 register_icall (mono_threads_finish_blocking, "mono_threads_finish_blocking", "void int", FALSE);
247 register_icall (mono_threads_reset_blocking_start, "mono_threads_reset_blocking_start","int", TRUE);
248 register_icall (mono_threads_reset_blocking_end, "mono_threads_reset_blocking_end","void int", TRUE);
254 mono_marshal_cleanup (void)
256 mono_cominterop_cleanup ();
258 mono_native_tls_free (load_type_info_tls_id);
259 mono_native_tls_free (last_error_tls_id);
260 mono_mutex_destroy (&marshal_mutex);
261 marshal_mutex_initialized = FALSE;
265 mono_marshal_lock_internal (void)
267 mono_marshal_lock ();
271 mono_marshal_unlock_internal (void)
273 mono_marshal_unlock ();
277 mono_delegate_to_ftnptr (MonoDelegate *delegate)
279 MonoMethod *method, *wrapper;
281 uint32_t target_handle = 0;
286 if (delegate->delegate_trampoline)
287 return delegate->delegate_trampoline;
289 klass = ((MonoObject *)delegate)->vtable->klass;
290 g_assert (klass->delegate);
292 method = delegate->method;
294 if (mono_method_signature (method)->pinvoke) {
295 const char *exc_class, *exc_arg;
298 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
300 g_assert (exc_class);
301 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
306 if (delegate->target) {
307 /* Produce a location which can be embedded in JITted code */
308 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
311 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
313 delegate->delegate_trampoline = mono_compile_method (wrapper);
315 // Add the delegate to the delegate hash table
316 delegate_hash_table_add (delegate);
318 /* when the object is collected, collect the dynamic method, too */
319 mono_object_register_finalizer ((MonoObject*)delegate);
321 return delegate->delegate_trampoline;
325 * this hash table maps from a delegate trampoline object to a weak reference
326 * of the delegate. As an optimizations with a non-moving GC we store the
327 * object pointer itself, otherwise we use a GC handle.
329 static GHashTable *delegate_hash_table;
332 delegate_hash_table_new (void) {
333 return g_hash_table_new (NULL, NULL);
337 delegate_hash_table_remove (MonoDelegate *d)
339 guint32 gchandle = 0;
341 mono_marshal_lock ();
342 if (delegate_hash_table == NULL)
343 delegate_hash_table = delegate_hash_table_new ();
344 if (mono_gc_is_moving ())
345 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
346 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
347 mono_marshal_unlock ();
348 if (mono_gc_is_moving ())
349 mono_gchandle_free (gchandle);
353 delegate_hash_table_add (MonoDelegate *d)
356 guint32 old_gchandle;
358 mono_marshal_lock ();
359 if (delegate_hash_table == NULL)
360 delegate_hash_table = delegate_hash_table_new ();
361 if (mono_gc_is_moving ()) {
362 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
363 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
364 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
366 mono_gchandle_free (old_gchandle);
368 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
370 mono_marshal_unlock ();
374 * mono_marshal_use_aot_wrappers:
376 * Instructs this module to use AOT compatible wrappers.
379 mono_marshal_use_aot_wrappers (gboolean use)
381 use_aot_wrappers = use;
385 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
387 static MonoClass *UnmanagedFunctionPointerAttribute;
388 MonoCustomAttrInfo *cinfo;
389 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
391 if (!UnmanagedFunctionPointerAttribute)
392 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
394 /* The attribute is only available in Net 2.0 */
395 if (UnmanagedFunctionPointerAttribute) {
397 * The pinvoke attributes are stored in a real custom attribute so we have to
400 cinfo = mono_custom_attrs_from_class (klass);
401 if (cinfo && !mono_runtime_get_no_exec ()) {
403 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, UnmanagedFunctionPointerAttribute, &error);
405 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
407 if (!mono_error_ok (&error)) {
408 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
409 mono_error_cleanup (&error);
413 mono_custom_attrs_free (cinfo);
419 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
427 mono_marshal_lock ();
428 if (delegate_hash_table == NULL)
429 delegate_hash_table = delegate_hash_table_new ();
431 if (mono_gc_is_moving ()) {
432 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
433 mono_marshal_unlock ();
435 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
439 d = g_hash_table_lookup (delegate_hash_table, ftn);
440 mono_marshal_unlock ();
443 /* This is a native function, so construct a delegate for it */
444 MonoMethodSignature *sig;
446 MonoMarshalSpec **mspecs;
447 MonoMethod *invoke = mono_get_delegate_invoke (klass);
448 MonoMethodPInvoke piinfo;
449 MonoObject *this_obj;
452 if (use_aot_wrappers) {
453 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
454 this_obj = mono_value_box (mono_domain_get (), mono_defaults.int_class, &ftn);
456 memset (&piinfo, 0, sizeof (piinfo));
457 parse_unmanaged_function_pointer_attr (klass, &piinfo);
459 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
460 mono_method_get_marshal_info (invoke, mspecs);
461 /* Freed below so don't alloc from mempool */
462 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
465 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
468 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
470 mono_metadata_free_marshal_spec (mspecs [i]);
475 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
476 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, mono_compile_method (wrapper), wrapper);
479 if (d->object.vtable->domain != mono_domain_get ())
480 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
486 mono_delegate_free_ftnptr (MonoDelegate *delegate)
491 delegate_hash_table_remove (delegate);
493 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
495 if (!delegate->target) {
496 /* The wrapper method is shared between delegates -> no need to free it */
505 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
508 method = mono_jit_info_get_method (ji);
509 method_data = ((MonoMethodWrapper*)method)->method_data;
511 /*the target gchandle is the first entry after size and the wrapper itself.*/
512 gchandle = GPOINTER_TO_UINT (method_data [2]);
515 mono_gchandle_free (gchandle);
517 mono_runtime_free_method (mono_object_domain (delegate), method);
522 mono_string_from_byvalstr (const char *data, int max_len)
524 MonoDomain *domain = mono_domain_get ();
530 while (len < max_len - 1 && data [len])
533 return mono_string_new_len (domain, data, len);
537 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
539 MonoDomain *domain = mono_domain_get ();
545 while (data [len]) len++;
547 return mono_string_new_utf16 (domain, data, MIN (len, max_len));
551 mono_array_to_savearray (MonoArray *array)
556 g_assert_not_reached ();
561 mono_array_to_lparray (MonoArray *array)
564 gpointer *nativeArray = NULL;
565 int nativeArraySize = 0;
575 klass = array->obj.vtable->klass;
577 switch (klass->element_class->byval_arg.type) {
579 g_assert_not_reached ();
581 case MONO_TYPE_CLASS:
582 nativeArraySize = array->max_length;
583 nativeArray = malloc(sizeof(gpointer) * nativeArraySize);
584 for(i = 0; i < nativeArraySize; ++i)
585 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((gpointer*)array->vector)[i]);
588 case MONO_TYPE_BOOLEAN:
601 case MONO_TYPE_VALUETYPE:
605 case MONO_TYPE_GENERICINST:
606 case MONO_TYPE_OBJECT:
607 case MONO_TYPE_ARRAY:
608 case MONO_TYPE_SZARRAY:
609 case MONO_TYPE_STRING:
611 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
612 g_assert_not_reached ();
615 return array->vector;
619 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
630 klass = array->obj.vtable->klass;
632 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
633 for(i = 0; i < array->max_length; ++i)
634 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
641 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
643 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
645 if (elclass == mono_defaults.byte_class) {
646 GError *error = NULL;
650 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
653 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
657 g_error_free (error);
660 g_assert_not_reached ();
664 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
666 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
670 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
672 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
674 if (elclass == mono_defaults.byte_class) {
676 GError *error = NULL;
678 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
680 MonoException *exc = mono_get_exception_argument ("string", error->message);
681 g_error_free (error);
682 mono_raise_exception (exc);
685 memcpy (native_arr, as, MIN (strlen (as), elnum));
688 g_assert_not_reached ();
693 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
695 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
698 static MonoStringBuilder *
699 mono_string_builder_new (int starting_string_length)
701 static MonoClass *string_builder_class;
702 static MonoMethod *sb_ctor;
703 static void *args [1];
704 int initial_len = starting_string_length;
710 MonoMethodDesc *desc;
713 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
714 g_assert (string_builder_class);
715 desc = mono_method_desc_new (":.ctor(int)", FALSE);
716 m = mono_method_desc_search_in_class (desc, string_builder_class);
718 mono_method_desc_free (desc);
719 mono_memory_barrier ();
723 // We make a new array in the _to_builder function, so this
724 // array will always be garbage collected.
725 args [0] = &initial_len;
727 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
731 mono_runtime_invoke (sb_ctor, sb, args, &exc);
734 g_assert (sb->chunkChars->max_length >= initial_len);
740 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
742 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
743 gunichar2 *charSrc = (gunichar2 *)text;
744 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
746 sb->chunkLength = string_len;
752 mono_string_utf16_to_builder2 (gunichar2 *text)
758 for (len = 0; text [len] != 0; ++len);
760 MonoStringBuilder *sb = mono_string_builder_new (len);
761 mono_string_utf16_to_builder (sb, text);
767 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
772 int len = strlen (text);
773 if (len > mono_string_builder_capacity (sb))
774 len = mono_string_builder_capacity (sb);
776 GError *error = NULL;
778 gunichar2* ut = g_utf8_to_utf16 (text, len, NULL, &copied, &error);
781 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
782 mono_string_utf16_to_builder_copy (sb, ut, copied);
784 g_error_free (error);
790 mono_string_utf8_to_builder2 (char *text)
795 int len = strlen (text);
796 MonoStringBuilder *sb = mono_string_builder_new (len);
797 mono_string_utf8_to_builder (sb, text);
804 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
810 for (len = 0; text [len] != 0; ++len);
812 if (len > mono_string_builder_capacity (sb))
813 len = mono_string_builder_capacity (sb);
815 mono_string_utf16_to_builder_copy (sb, text, len);
819 * mono_string_builder_to_utf8:
820 * @sb: the string builder
822 * Converts to utf8 the contents of the MonoStringBuilder.
824 * Returns: a utf8 string with the contents of the StringBuilder.
826 * The return value must be released with g_free.
829 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
831 GError *error = NULL;
837 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
839 guint str_len = mono_string_builder_string_length (sb);
841 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, NULL, &error);
844 g_error_free (error);
846 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
849 guint len = mono_string_builder_capacity (sb) + 1;
850 gchar *res = mono_marshal_alloc (len * sizeof (gchar));
851 g_assert (str_len < len);
852 memcpy (res, tmp, str_len * sizeof (gchar));
863 * mono_string_builder_to_utf16:
864 * @sb: the string builder
866 * Converts to utf16 the contents of the MonoStringBuilder.
868 * Returns: a utf16 string with the contents of the StringBuilder.
870 * The return value must not be freed.
873 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
878 g_assert (sb->chunkChars);
880 guint len = mono_string_builder_capacity (sb);
885 gunichar2 *str = mono_marshal_alloc ((len + 1) * sizeof (gunichar2));
891 MonoStringBuilder* chunk = sb;
893 if (chunk->chunkLength > 0) {
894 // Check that we will not overrun our boundaries.
895 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
897 if (chunk->chunkLength <= len) {
898 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
900 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
903 len -= chunk->chunkLength;
905 chunk = chunk->chunkPrevious;
906 } while (chunk != NULL);
912 mono_string_to_lpstr (MonoString *s)
917 GError *error = NULL;
923 as = CoTaskMemAlloc (1);
928 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
930 MonoException *exc = mono_get_exception_argument ("string", error->message);
931 g_error_free (error);
932 mono_raise_exception(exc);
935 as = CoTaskMemAlloc (len + 1);
936 memcpy (as, tmp, len + 1);
941 return mono_string_to_utf8 (s);
946 mono_string_to_ansibstr (MonoString *string_obj)
948 g_error ("UnmanagedMarshal.BStr is not implemented.");
953 * mono_string_to_byvalstr:
954 * @dst: Where to store the null-terminated utf8 decoded string.
955 * @src: the MonoString to copy.
956 * @size: the maximum number of bytes to copy.
958 * Copies the MonoString pointed to by @src as a utf8 string
959 * into @dst, it copies at most @size bytes into the destination.
962 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
967 g_assert (dst != NULL);
970 memset (dst, 0, size);
974 s = mono_string_to_utf8 (src);
975 len = MIN (size, strlen (s));
978 memcpy (dst, s, len);
983 * mono_string_to_byvalwstr:
984 * @dst: Where to store the null-terminated utf16 decoded string.
985 * @src: the MonoString to copy.
986 * @size: the maximum number of bytes to copy.
988 * Copies the MonoString pointed to by @src as a utf16 string into
989 * @dst, it copies at most @size bytes into the destination (including
990 * a terminating 16-bit zero terminator).
993 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
997 g_assert (dst != NULL);
1001 memset (dst, 0, size * 2);
1005 len = MIN (size, (mono_string_length (src)));
1006 memcpy (dst, mono_string_chars (src), size * 2);
1007 if (size <= mono_string_length (src))
1009 *((gunichar2 *) dst + len) = 0;
1013 mono_string_new_len_wrapper (const char *text, guint length)
1015 return mono_string_new_len (mono_domain_get (), text, length);
1021 * mono_mb_emit_exception_marshal_directive:
1023 * This function assumes ownership of MSG, which should be malloc-ed.
1026 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1031 s = mono_image_strdup (mb->method->klass->image, msg);
1036 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1039 #endif /* !DISABLE_JIT */
1042 mono_type_to_ldind (MonoType *type)
1048 switch (type->type) {
1050 return CEE_LDIND_I1;
1052 case MONO_TYPE_BOOLEAN:
1053 return CEE_LDIND_U1;
1055 return CEE_LDIND_I2;
1057 case MONO_TYPE_CHAR:
1058 return CEE_LDIND_U2;
1060 return CEE_LDIND_I4;
1062 return CEE_LDIND_U4;
1066 case MONO_TYPE_FNPTR:
1068 case MONO_TYPE_CLASS:
1069 case MONO_TYPE_STRING:
1070 case MONO_TYPE_OBJECT:
1071 case MONO_TYPE_SZARRAY:
1072 case MONO_TYPE_ARRAY:
1073 return CEE_LDIND_REF;
1076 return CEE_LDIND_I8;
1078 return CEE_LDIND_R4;
1080 return CEE_LDIND_R8;
1081 case MONO_TYPE_VALUETYPE:
1082 if (type->data.klass->enumtype) {
1083 type = mono_class_enum_basetype (type->data.klass);
1087 case MONO_TYPE_TYPEDBYREF:
1089 case MONO_TYPE_GENERICINST:
1090 type = &type->data.generic_class->container_class->byval_arg;
1093 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1099 mono_type_to_stind (MonoType *type)
1105 switch (type->type) {
1108 case MONO_TYPE_BOOLEAN:
1109 return CEE_STIND_I1;
1112 case MONO_TYPE_CHAR:
1113 return CEE_STIND_I2;
1116 return CEE_STIND_I4;
1120 case MONO_TYPE_FNPTR:
1122 case MONO_TYPE_CLASS:
1123 case MONO_TYPE_STRING:
1124 case MONO_TYPE_OBJECT:
1125 case MONO_TYPE_SZARRAY:
1126 case MONO_TYPE_ARRAY:
1127 return CEE_STIND_REF;
1130 return CEE_STIND_I8;
1132 return CEE_STIND_R4;
1134 return CEE_STIND_R8;
1135 case MONO_TYPE_VALUETYPE:
1136 if (type->data.klass->enumtype) {
1137 type = mono_class_enum_basetype (type->data.klass);
1141 case MONO_TYPE_TYPEDBYREF:
1143 case MONO_TYPE_GENERICINST:
1144 type = &type->data.generic_class->container_class->byval_arg;
1147 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1155 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1158 case MONO_MARSHAL_CONV_BOOL_I4:
1159 mono_mb_emit_ldloc (mb, 1);
1160 mono_mb_emit_ldloc (mb, 0);
1161 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1162 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1163 mono_mb_emit_byte (mb, 3);
1164 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1165 mono_mb_emit_byte (mb, CEE_BR_S);
1166 mono_mb_emit_byte (mb, 1);
1167 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1168 mono_mb_emit_byte (mb, CEE_STIND_I1);
1170 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1171 mono_mb_emit_ldloc (mb, 1);
1172 mono_mb_emit_ldloc (mb, 0);
1173 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1174 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1175 mono_mb_emit_byte (mb, 3);
1176 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1177 mono_mb_emit_byte (mb, CEE_BR_S);
1178 mono_mb_emit_byte (mb, 1);
1179 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1180 mono_mb_emit_byte (mb, CEE_STIND_I1);
1182 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1183 MonoClass *eklass = NULL;
1186 if (type->type == MONO_TYPE_SZARRAY) {
1187 eklass = type->data.klass;
1189 g_assert_not_reached ();
1192 esize = mono_class_native_size (eklass, NULL);
1194 /* create a new array */
1195 mono_mb_emit_ldloc (mb, 1);
1196 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1197 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1198 mono_mb_emit_byte (mb, CEE_STIND_I);
1200 if (eklass->blittable) {
1201 /* copy the elements */
1202 mono_mb_emit_ldloc (mb, 1);
1203 mono_mb_emit_byte (mb, CEE_LDIND_I);
1204 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1205 mono_mb_emit_byte (mb, CEE_ADD);
1206 mono_mb_emit_ldloc (mb, 0);
1207 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1208 mono_mb_emit_byte (mb, CEE_PREFIX1);
1209 mono_mb_emit_byte (mb, CEE_CPBLK);
1212 int array_var, src_var, dst_var, index_var;
1213 guint32 label2, label3;
1215 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1216 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1217 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1220 mono_mb_emit_ldloc (mb, 1);
1221 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1222 mono_mb_emit_stloc (mb, array_var);
1224 /* save the old src pointer */
1225 mono_mb_emit_ldloc (mb, 0);
1226 mono_mb_emit_stloc (mb, src_var);
1227 /* save the old dst pointer */
1228 mono_mb_emit_ldloc (mb, 1);
1229 mono_mb_emit_stloc (mb, dst_var);
1231 /* Emit marshalling loop */
1232 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1233 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1234 mono_mb_emit_stloc (mb, index_var);
1237 label2 = mono_mb_get_label (mb);
1238 mono_mb_emit_ldloc (mb, index_var);
1239 mono_mb_emit_ldloc (mb, array_var);
1240 mono_mb_emit_byte (mb, CEE_LDLEN);
1241 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1243 /* src is already set */
1246 mono_mb_emit_ldloc (mb, array_var);
1247 mono_mb_emit_ldloc (mb, index_var);
1248 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1249 mono_mb_emit_stloc (mb, 1);
1251 /* Do the conversion */
1252 emit_struct_conv (mb, eklass, TRUE);
1255 mono_mb_emit_add_to_local (mb, index_var, 1);
1257 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1259 mono_mb_patch_branch (mb, label3);
1261 /* restore the old src pointer */
1262 mono_mb_emit_ldloc (mb, src_var);
1263 mono_mb_emit_stloc (mb, 0);
1264 /* restore the old dst pointer */
1265 mono_mb_emit_ldloc (mb, dst_var);
1266 mono_mb_emit_stloc (mb, 1);
1270 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1271 MonoClass *eclass = mono_defaults.char_class;
1273 /* create a new array */
1274 mono_mb_emit_ldloc (mb, 1);
1275 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1276 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1277 mono_mb_emit_byte (mb, CEE_STIND_REF);
1279 mono_mb_emit_ldloc (mb, 1);
1280 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1281 mono_mb_emit_ldloc (mb, 0);
1282 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1283 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1286 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1287 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1288 mono_mb_emit_ldloc (mb, 1);
1289 mono_mb_emit_ldloc (mb, 0);
1290 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1291 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1293 mono_mb_emit_ldloc (mb, 1);
1294 mono_mb_emit_ldloc (mb, 0);
1295 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1297 mono_mb_emit_byte (mb, CEE_STIND_REF);
1299 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1300 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1301 mono_mb_emit_ldloc (mb, 1);
1302 mono_mb_emit_ldloc (mb, 0);
1303 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1304 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1306 mono_mb_emit_ldloc (mb, 1);
1307 mono_mb_emit_ldloc (mb, 0);
1308 mono_mb_emit_icall (mb, mono_string_from_utf16);
1310 mono_mb_emit_byte (mb, CEE_STIND_REF);
1312 case MONO_MARSHAL_CONV_STR_LPTSTR:
1313 mono_mb_emit_ldloc (mb, 1);
1314 mono_mb_emit_ldloc (mb, 0);
1315 mono_mb_emit_byte (mb, CEE_LDIND_I);
1317 mono_mb_emit_icall (mb, mono_string_from_utf16);
1319 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1321 mono_mb_emit_byte (mb, CEE_STIND_REF);
1323 case MONO_MARSHAL_CONV_STR_LPSTR:
1324 mono_mb_emit_ldloc (mb, 1);
1325 mono_mb_emit_ldloc (mb, 0);
1326 mono_mb_emit_byte (mb, CEE_LDIND_I);
1327 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1328 mono_mb_emit_byte (mb, CEE_STIND_REF);
1330 case MONO_MARSHAL_CONV_STR_LPWSTR:
1331 mono_mb_emit_ldloc (mb, 1);
1332 mono_mb_emit_ldloc (mb, 0);
1333 mono_mb_emit_byte (mb, CEE_LDIND_I);
1334 mono_mb_emit_icall (mb, mono_string_from_utf16);
1335 mono_mb_emit_byte (mb, CEE_STIND_REF);
1337 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1338 MonoClass *klass = mono_class_from_mono_type (type);
1339 int src_var, dst_var;
1341 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1342 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1344 /* *dst = new object */
1345 mono_mb_emit_ldloc (mb, 1);
1346 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1347 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1348 mono_mb_emit_byte (mb, CEE_STIND_REF);
1350 /* save the old src pointer */
1351 mono_mb_emit_ldloc (mb, 0);
1352 mono_mb_emit_stloc (mb, src_var);
1353 /* save the old dst pointer */
1354 mono_mb_emit_ldloc (mb, 1);
1355 mono_mb_emit_stloc (mb, dst_var);
1357 /* dst = pointer to newly created object data */
1358 mono_mb_emit_ldloc (mb, 1);
1359 mono_mb_emit_byte (mb, CEE_LDIND_I);
1360 mono_mb_emit_icon (mb, sizeof (MonoObject));
1361 mono_mb_emit_byte (mb, CEE_ADD);
1362 mono_mb_emit_stloc (mb, 1);
1364 emit_struct_conv (mb, klass, TRUE);
1366 /* restore the old src pointer */
1367 mono_mb_emit_ldloc (mb, src_var);
1368 mono_mb_emit_stloc (mb, 0);
1369 /* restore the old dst pointer */
1370 mono_mb_emit_ldloc (mb, dst_var);
1371 mono_mb_emit_stloc (mb, 1);
1374 case MONO_MARSHAL_CONV_DEL_FTN: {
1375 MonoClass *klass = mono_class_from_mono_type (type);
1377 mono_mb_emit_ldloc (mb, 1);
1378 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1379 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1380 mono_mb_emit_ldloc (mb, 0);
1381 mono_mb_emit_byte (mb, CEE_LDIND_I);
1382 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1383 mono_mb_emit_byte (mb, CEE_STIND_REF);
1386 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1387 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1391 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1392 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1393 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1394 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1396 #endif /* DISABLE_COM */
1398 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1400 * Passing SafeHandles as ref does not allow the unmanaged code
1401 * to change the SafeHandle value. If the value is changed,
1402 * we should issue a diagnostic exception (NotSupportedException)
1403 * that informs the user that changes to handles in unmanaged code
1406 * Since we currently have no access to the original
1407 * SafeHandle that was used during the marshalling,
1408 * for now we just ignore this, and ignore/discard any
1409 * changes that might have happened to the handle.
1414 case MONO_MARSHAL_CONV_HANDLEREF: {
1416 * Passing HandleRefs in a struct that is ref()ed does not
1417 * copy the values back to the HandleRef
1422 case MONO_MARSHAL_CONV_STR_BSTR:
1423 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1424 case MONO_MARSHAL_CONV_STR_TBSTR:
1425 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1427 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1429 mono_mb_emit_exception_marshal_directive (mb, msg);
1436 conv_to_icall (MonoMarshalConv conv)
1439 case MONO_MARSHAL_CONV_STR_LPWSTR:
1440 return mono_marshal_string_to_utf16;
1441 case MONO_MARSHAL_CONV_LPWSTR_STR:
1442 return mono_string_from_utf16;
1443 case MONO_MARSHAL_CONV_LPTSTR_STR:
1444 return mono_string_new_wrapper;
1445 case MONO_MARSHAL_CONV_LPSTR_STR:
1446 return mono_string_new_wrapper;
1447 case MONO_MARSHAL_CONV_STR_LPTSTR:
1449 return mono_marshal_string_to_utf16;
1451 return mono_string_to_lpstr;
1453 case MONO_MARSHAL_CONV_STR_LPSTR:
1454 return mono_string_to_lpstr;
1455 case MONO_MARSHAL_CONV_STR_BSTR:
1456 return mono_string_to_bstr;
1457 case MONO_MARSHAL_CONV_BSTR_STR:
1458 return mono_string_from_bstr;
1459 case MONO_MARSHAL_CONV_STR_TBSTR:
1460 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1461 return mono_string_to_ansibstr;
1462 case MONO_MARSHAL_CONV_SB_LPSTR:
1463 return mono_string_builder_to_utf8;
1464 case MONO_MARSHAL_CONV_SB_LPTSTR:
1466 return mono_string_builder_to_utf16;
1468 return mono_string_builder_to_utf8;
1470 case MONO_MARSHAL_CONV_SB_LPWSTR:
1471 return mono_string_builder_to_utf16;
1472 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1473 return mono_array_to_savearray;
1474 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1475 return mono_array_to_lparray;
1476 case MONO_MARSHAL_FREE_LPARRAY:
1477 return mono_free_lparray;
1478 case MONO_MARSHAL_CONV_DEL_FTN:
1479 return mono_delegate_to_ftnptr;
1480 case MONO_MARSHAL_CONV_FTN_DEL:
1481 return mono_ftnptr_to_delegate;
1482 case MONO_MARSHAL_CONV_LPSTR_SB:
1483 return mono_string_utf8_to_builder;
1484 case MONO_MARSHAL_CONV_LPTSTR_SB:
1486 return mono_string_utf16_to_builder;
1488 return mono_string_utf8_to_builder;
1490 case MONO_MARSHAL_CONV_LPWSTR_SB:
1491 return mono_string_utf16_to_builder;
1492 case MONO_MARSHAL_FREE_ARRAY:
1493 return mono_marshal_free_array;
1494 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1495 return mono_string_to_byvalstr;
1496 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1497 return mono_string_to_byvalwstr;
1499 g_assert_not_reached ();
1506 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1511 case MONO_MARSHAL_CONV_BOOL_I4:
1512 mono_mb_emit_ldloc (mb, 1);
1513 mono_mb_emit_ldloc (mb, 0);
1514 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1515 mono_mb_emit_byte (mb, CEE_STIND_I4);
1517 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1518 mono_mb_emit_ldloc (mb, 1);
1519 mono_mb_emit_ldloc (mb, 0);
1520 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1521 mono_mb_emit_byte (mb, CEE_NEG);
1522 mono_mb_emit_byte (mb, CEE_STIND_I2);
1524 case MONO_MARSHAL_CONV_STR_LPWSTR:
1525 case MONO_MARSHAL_CONV_STR_LPSTR:
1526 case MONO_MARSHAL_CONV_STR_LPTSTR:
1527 case MONO_MARSHAL_CONV_STR_BSTR:
1528 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1529 case MONO_MARSHAL_CONV_STR_TBSTR: {
1532 /* free space if free == true */
1533 mono_mb_emit_ldloc (mb, 2);
1534 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1535 mono_mb_emit_ldloc (mb, 1);
1536 mono_mb_emit_byte (mb, CEE_LDIND_I);
1537 mono_mb_emit_icall (mb, g_free);
1538 mono_mb_patch_short_branch (mb, pos);
1540 mono_mb_emit_ldloc (mb, 1);
1541 mono_mb_emit_ldloc (mb, 0);
1542 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1543 mono_mb_emit_icall (mb, conv_to_icall (conv));
1544 mono_mb_emit_byte (mb, CEE_STIND_I);
1547 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1548 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1549 case MONO_MARSHAL_CONV_DEL_FTN:
1550 mono_mb_emit_ldloc (mb, 1);
1551 mono_mb_emit_ldloc (mb, 0);
1552 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1553 mono_mb_emit_icall (mb, conv_to_icall (conv));
1554 mono_mb_emit_byte (mb, CEE_STIND_I);
1556 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1557 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1560 mono_mb_emit_ldloc (mb, 1); /* dst */
1561 mono_mb_emit_ldloc (mb, 0);
1562 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1563 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1564 mono_mb_emit_icall (mb, conv_to_icall (conv));
1567 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1568 MonoClass *eklass = NULL;
1571 if (type->type == MONO_TYPE_SZARRAY) {
1572 eklass = type->data.klass;
1574 g_assert_not_reached ();
1577 if (eklass->valuetype)
1578 esize = mono_class_native_size (eklass, NULL);
1580 esize = sizeof (gpointer);
1582 mono_mb_emit_ldloc (mb, 0);
1583 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1584 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1586 if (eklass->blittable) {
1587 mono_mb_emit_ldloc (mb, 1);
1588 mono_mb_emit_ldloc (mb, 0);
1589 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1590 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1591 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1592 mono_mb_emit_byte (mb, CEE_PREFIX1);
1593 mono_mb_emit_byte (mb, CEE_CPBLK);
1595 int array_var, src_var, dst_var, index_var;
1596 guint32 label2, label3;
1598 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1599 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1600 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1603 mono_mb_emit_ldloc (mb, 0);
1604 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1605 mono_mb_emit_stloc (mb, array_var);
1607 /* save the old src pointer */
1608 mono_mb_emit_ldloc (mb, 0);
1609 mono_mb_emit_stloc (mb, src_var);
1610 /* save the old dst pointer */
1611 mono_mb_emit_ldloc (mb, 1);
1612 mono_mb_emit_stloc (mb, dst_var);
1614 /* Emit marshalling loop */
1615 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1616 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1617 mono_mb_emit_stloc (mb, index_var);
1620 label2 = mono_mb_get_label (mb);
1621 mono_mb_emit_ldloc (mb, index_var);
1622 mono_mb_emit_ldloc (mb, array_var);
1623 mono_mb_emit_byte (mb, CEE_LDLEN);
1624 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1627 mono_mb_emit_ldloc (mb, array_var);
1628 mono_mb_emit_ldloc (mb, index_var);
1629 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1630 mono_mb_emit_stloc (mb, 0);
1632 /* dst is already set */
1634 /* Do the conversion */
1635 emit_struct_conv (mb, eklass, FALSE);
1638 mono_mb_emit_add_to_local (mb, index_var, 1);
1640 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1642 mono_mb_patch_branch (mb, label3);
1644 /* restore the old src pointer */
1645 mono_mb_emit_ldloc (mb, src_var);
1646 mono_mb_emit_stloc (mb, 0);
1647 /* restore the old dst pointer */
1648 mono_mb_emit_ldloc (mb, dst_var);
1649 mono_mb_emit_stloc (mb, 1);
1652 mono_mb_patch_branch (mb, pos);
1655 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1656 mono_mb_emit_ldloc (mb, 0);
1657 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1658 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1660 mono_mb_emit_ldloc (mb, 1);
1661 mono_mb_emit_ldloc (mb, 0);
1662 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1663 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1664 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1665 mono_mb_patch_short_branch (mb, pos);
1668 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1669 int src_var, dst_var;
1671 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1672 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1674 mono_mb_emit_ldloc (mb, 0);
1675 mono_mb_emit_byte (mb, CEE_LDIND_I);
1676 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1678 /* save the old src pointer */
1679 mono_mb_emit_ldloc (mb, 0);
1680 mono_mb_emit_stloc (mb, src_var);
1681 /* save the old dst pointer */
1682 mono_mb_emit_ldloc (mb, 1);
1683 mono_mb_emit_stloc (mb, dst_var);
1685 /* src = pointer to object data */
1686 mono_mb_emit_ldloc (mb, 0);
1687 mono_mb_emit_byte (mb, CEE_LDIND_I);
1688 mono_mb_emit_icon (mb, sizeof (MonoObject));
1689 mono_mb_emit_byte (mb, CEE_ADD);
1690 mono_mb_emit_stloc (mb, 0);
1692 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1694 /* restore the old src pointer */
1695 mono_mb_emit_ldloc (mb, src_var);
1696 mono_mb_emit_stloc (mb, 0);
1697 /* restore the old dst pointer */
1698 mono_mb_emit_ldloc (mb, dst_var);
1699 mono_mb_emit_stloc (mb, 1);
1701 mono_mb_patch_branch (mb, pos);
1706 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1707 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1708 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1709 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1711 #endif /* DISABLE_COM */
1713 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1716 mono_mb_emit_ldloc (mb, 0);
1717 mono_mb_emit_byte (mb, CEE_LDIND_I);
1718 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1719 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1720 mono_mb_patch_branch (mb, pos);
1722 /* Pull the handle field from SafeHandle */
1723 mono_mb_emit_ldloc (mb, 1);
1724 mono_mb_emit_ldloc (mb, 0);
1725 mono_mb_emit_byte (mb, CEE_LDIND_I);
1726 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1727 mono_mb_emit_byte (mb, CEE_LDIND_I);
1728 mono_mb_emit_byte (mb, CEE_STIND_I);
1732 case MONO_MARSHAL_CONV_HANDLEREF: {
1733 mono_mb_emit_ldloc (mb, 1);
1734 mono_mb_emit_ldloc (mb, 0);
1735 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1736 mono_mb_emit_byte (mb, CEE_ADD);
1737 mono_mb_emit_byte (mb, CEE_LDIND_I);
1738 mono_mb_emit_byte (mb, CEE_STIND_I);
1743 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1744 MonoException *exc = mono_get_exception_not_implemented (msg);
1745 g_warning ("%s", msg);
1747 mono_raise_exception (exc);
1753 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1754 MonoMarshalNative string_encoding)
1756 MonoMarshalType *info;
1760 emit_struct_conv(mb, klass->parent, to_object);
1762 info = mono_marshal_load_type_info (klass);
1764 if (info->native_size == 0)
1767 if (klass->blittable) {
1768 int msize = mono_class_value_size (klass, NULL);
1769 g_assert (msize == info->native_size);
1770 mono_mb_emit_ldloc (mb, 1);
1771 mono_mb_emit_ldloc (mb, 0);
1772 mono_mb_emit_icon (mb, msize);
1773 mono_mb_emit_byte (mb, CEE_PREFIX1);
1774 mono_mb_emit_byte (mb, CEE_CPBLK);
1776 mono_mb_emit_add_to_local (mb, 0, msize);
1777 mono_mb_emit_add_to_local (mb, 1, msize);
1781 if (klass != mono_defaults.safehandle_class) {
1782 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1783 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1784 mono_type_full_name (&klass->byval_arg));
1785 mono_mb_emit_exception_marshal_directive (mb, msg);
1790 for (i = 0; i < info->num_fields; i++) {
1791 MonoMarshalNative ntype;
1792 MonoMarshalConv conv;
1793 MonoType *ftype = info->fields [i].field->type;
1796 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1798 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1801 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1804 msize = klass->instance_size - info->fields [i].field->offset;
1805 usize = info->native_size - info->fields [i].offset;
1807 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1808 usize = info->fields [i + 1].offset - info->fields [i].offset;
1811 if (klass != mono_defaults.safehandle_class){
1813 * FIXME: Should really check for usize==0 and msize>0, but we apply
1814 * the layout to the managed structure as well.
1817 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1818 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1819 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1820 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1821 "reference field at the same offset as another field.",
1822 mono_type_full_name (&klass->byval_arg));
1827 case MONO_MARSHAL_CONV_NONE: {
1830 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1831 ftype->type == MONO_TYPE_U) {
1832 mono_mb_emit_ldloc (mb, 1);
1833 mono_mb_emit_ldloc (mb, 0);
1834 mono_mb_emit_byte (mb, CEE_LDIND_I);
1835 mono_mb_emit_byte (mb, CEE_STIND_I);
1846 case MONO_TYPE_BOOLEAN:
1849 case MONO_TYPE_CHAR:
1855 mono_mb_emit_ldloc (mb, 1);
1856 mono_mb_emit_ldloc (mb, 0);
1857 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
1859 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1860 mono_mb_emit_byte (mb, CEE_STIND_I2);
1862 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1863 mono_mb_emit_byte (mb, CEE_STIND_I1);
1866 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1867 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1870 case MONO_TYPE_VALUETYPE: {
1871 int src_var, dst_var;
1873 if (ftype->data.klass->enumtype) {
1874 ftype = mono_class_enum_basetype (ftype->data.klass);
1878 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1879 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1881 /* save the old src pointer */
1882 mono_mb_emit_ldloc (mb, 0);
1883 mono_mb_emit_stloc (mb, src_var);
1884 /* save the old dst pointer */
1885 mono_mb_emit_ldloc (mb, 1);
1886 mono_mb_emit_stloc (mb, dst_var);
1888 emit_struct_conv (mb, ftype->data.klass, to_object);
1890 /* restore the old src pointer */
1891 mono_mb_emit_ldloc (mb, src_var);
1892 mono_mb_emit_stloc (mb, 0);
1893 /* restore the old dst pointer */
1894 mono_mb_emit_ldloc (mb, dst_var);
1895 mono_mb_emit_stloc (mb, 1);
1898 case MONO_TYPE_OBJECT: {
1901 static MonoMethod *variant_clear = NULL;
1902 static MonoMethod *get_object_for_native_variant = NULL;
1905 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
1906 if (!get_object_for_native_variant)
1907 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
1908 mono_mb_emit_ldloc (mb, 1);
1909 mono_mb_emit_ldloc (mb, 0);
1910 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
1911 mono_mb_emit_byte (mb, CEE_STIND_REF);
1913 mono_mb_emit_ldloc (mb, 0);
1914 mono_mb_emit_managed_call (mb, variant_clear, NULL);
1917 static MonoMethod *get_native_variant_for_object = NULL;
1919 if (!get_native_variant_for_object)
1920 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
1922 mono_mb_emit_ldloc (mb, 0);
1923 mono_mb_emit_byte(mb, CEE_LDIND_REF);
1924 mono_mb_emit_ldloc (mb, 1);
1925 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
1928 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
1929 mono_mb_emit_exception_marshal_directive (mb, msg);
1935 g_warning ("marshaling type %02x not implemented", ftype->type);
1936 g_assert_not_reached ();
1941 int src_var, dst_var;
1943 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1944 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1946 /* save the old src pointer */
1947 mono_mb_emit_ldloc (mb, 0);
1948 mono_mb_emit_stloc (mb, src_var);
1949 /* save the old dst pointer */
1950 mono_mb_emit_ldloc (mb, 1);
1951 mono_mb_emit_stloc (mb, dst_var);
1954 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
1956 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
1958 /* restore the old src pointer */
1959 mono_mb_emit_ldloc (mb, src_var);
1960 mono_mb_emit_stloc (mb, 0);
1961 /* restore the old dst pointer */
1962 mono_mb_emit_ldloc (mb, dst_var);
1963 mono_mb_emit_stloc (mb, 1);
1968 mono_mb_emit_add_to_local (mb, 0, usize);
1969 mono_mb_emit_add_to_local (mb, 1, msize);
1971 mono_mb_emit_add_to_local (mb, 0, msize);
1972 mono_mb_emit_add_to_local (mb, 1, usize);
1978 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
1980 emit_struct_conv_full (mb, klass, to_object, -1);
1984 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
1986 /* Call DestroyStructure */
1987 /* FIXME: Only do this if needed */
1988 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1989 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1990 mono_mb_emit_ldloc (mb, struct_var);
1991 mono_mb_emit_icall (mb, mono_struct_delete_old);
1995 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
1997 int pos_noabort, pos_noex;
1999 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2000 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2001 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2002 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2004 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2005 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2007 mono_mb_emit_icall (mb, checkpoint_func);
2008 /* Throw the exception returned by the checkpoint function, if any */
2009 mono_mb_emit_byte (mb, CEE_DUP);
2010 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2011 mono_mb_emit_byte (mb, CEE_THROW);
2012 mono_mb_patch_branch (mb, pos_noex);
2013 mono_mb_emit_byte (mb, CEE_POP);
2015 mono_mb_patch_branch (mb, pos_noabort);
2019 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2021 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2024 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2028 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2030 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2034 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2036 emit_thread_interrupt_checkpoint (mb);
2040 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2042 emit_thread_force_interrupt_checkpoint (mb);
2045 #endif /* DISABLE_JIT */
2047 static MonoAsyncResult *
2048 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2050 MonoMulticastDelegate *mcast_delegate;
2054 g_assert (delegate);
2055 mcast_delegate = (MonoMulticastDelegate *) delegate;
2056 if (mcast_delegate->delegates != NULL)
2057 mono_raise_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2059 #ifndef DISABLE_REMOTING
2060 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2062 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2063 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2065 /* If the target is a proxy, make a direct call. Is proxy's work
2066 // to make the call asynchronous.
2068 MonoMethodMessage *msg;
2069 MonoDelegate *async_callback;
2071 MonoAsyncResult *ares;
2073 MonoArray *out_args;
2074 method = delegate->method;
2076 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2077 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2078 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2079 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2080 MONO_OBJECT_SETREF (msg, async_result, ares);
2081 msg->call_type = CallType_BeginInvoke;
2084 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2086 mono_raise_exception ((MonoException *) exc);
2092 klass = delegate->object.vtable->klass;
2094 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2096 method = mono_get_delegate_invoke (klass);
2099 return mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params);
2105 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2107 int i, params_var, tmp_var;
2109 /* allocate local (pointer) *params[] */
2110 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2111 /* allocate local (pointer) tmp */
2112 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2114 /* alloate space on stack to store an array of pointers to the arguments */
2115 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2116 mono_mb_emit_byte (mb, CEE_PREFIX1);
2117 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2118 mono_mb_emit_stloc (mb, params_var);
2121 mono_mb_emit_ldloc (mb, params_var);
2122 mono_mb_emit_stloc (mb, tmp_var);
2124 if (save_this && sig->hasthis) {
2125 mono_mb_emit_ldloc (mb, tmp_var);
2126 mono_mb_emit_ldarg_addr (mb, 0);
2127 mono_mb_emit_byte (mb, CEE_STIND_I);
2128 /* tmp = tmp + sizeof (gpointer) */
2129 if (sig->param_count)
2130 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2134 for (i = 0; i < sig->param_count; i++) {
2135 mono_mb_emit_ldloc (mb, tmp_var);
2136 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2137 mono_mb_emit_byte (mb, CEE_STIND_I);
2138 /* tmp = tmp + sizeof (gpointer) */
2139 if (i < (sig->param_count - 1))
2140 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2146 #endif /* DISABLE_JIT */
2149 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2153 GString *res = g_string_new ("");
2156 g_string_append (res, prefix);
2157 g_string_append_c (res, '_');
2160 mono_type_get_desc (res, sig->ret, FALSE);
2163 g_string_append (res, "__this__");
2165 for (i = 0; i < sig->param_count; ++i) {
2166 g_string_append_c (res, '_');
2167 mono_type_get_desc (res, sig->params [i], FALSE);
2170 g_string_free (res, FALSE);
2175 * mono_marshal_get_string_encoding:
2177 * Return the string encoding which should be used for a given parameter.
2179 static MonoMarshalNative
2180 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2182 /* First try the parameter marshal info */
2184 if (spec->native == MONO_NATIVE_LPARRAY) {
2185 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2186 return spec->data.array_data.elem_type;
2189 return spec->native;
2193 return MONO_NATIVE_LPSTR;
2195 /* Then try the method level marshal info */
2196 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2197 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2198 return MONO_NATIVE_LPSTR;
2199 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2200 return MONO_NATIVE_LPWSTR;
2201 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2203 return MONO_NATIVE_LPWSTR;
2205 return MONO_NATIVE_LPSTR;
2208 return MONO_NATIVE_LPSTR;
2212 static MonoMarshalConv
2213 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2215 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2218 case MONO_NATIVE_LPWSTR:
2219 return MONO_MARSHAL_CONV_STR_LPWSTR;
2220 case MONO_NATIVE_LPSTR:
2221 case MONO_NATIVE_VBBYREFSTR:
2222 return MONO_MARSHAL_CONV_STR_LPSTR;
2223 case MONO_NATIVE_LPTSTR:
2224 return MONO_MARSHAL_CONV_STR_LPTSTR;
2225 case MONO_NATIVE_BSTR:
2226 return MONO_MARSHAL_CONV_STR_BSTR;
2232 static MonoMarshalConv
2233 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2235 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2238 case MONO_NATIVE_LPWSTR:
2239 return MONO_MARSHAL_CONV_SB_LPWSTR;
2241 case MONO_NATIVE_LPSTR:
2242 return MONO_MARSHAL_CONV_SB_LPSTR;
2244 case MONO_NATIVE_LPTSTR:
2245 return MONO_MARSHAL_CONV_SB_LPTSTR;
2252 static MonoMarshalConv
2253 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2255 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2260 case MONO_NATIVE_LPWSTR:
2262 return MONO_MARSHAL_CONV_LPWSTR_STR;
2263 case MONO_NATIVE_LPSTR:
2264 case MONO_NATIVE_VBBYREFSTR:
2265 return MONO_MARSHAL_CONV_LPSTR_STR;
2266 case MONO_NATIVE_LPTSTR:
2267 return MONO_MARSHAL_CONV_LPTSTR_STR;
2268 case MONO_NATIVE_BSTR:
2269 return MONO_MARSHAL_CONV_BSTR_STR;
2275 static MonoMarshalConv
2276 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2278 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2283 case MONO_NATIVE_LPWSTR:
2285 * mono_string_builder_to_utf16 does not allocate a
2286 * new buffer, so no need to free it.
2289 return MONO_MARSHAL_CONV_LPWSTR_SB;
2290 case MONO_NATIVE_LPSTR:
2291 return MONO_MARSHAL_CONV_LPSTR_SB;
2293 case MONO_NATIVE_LPTSTR:
2294 return MONO_MARSHAL_CONV_LPTSTR_SB;
2302 * Return whenever a field of a native structure or an array member needs to
2306 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2308 MonoMarshalNative encoding;
2311 case MONO_TYPE_VALUETYPE:
2312 /* FIXME: Optimize this */
2314 case MONO_TYPE_OBJECT:
2315 case MONO_TYPE_CLASS:
2316 if (t->data.klass == mono_defaults.stringbuilder_class) {
2318 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2322 case MONO_TYPE_STRING:
2323 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2324 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2331 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2334 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2337 mono_marshal_lock ();
2340 g_hash_table_new (hash_func, equal_func);
2341 mono_memory_barrier ();
2344 mono_marshal_unlock ();
2350 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2352 return get_cache (var, hash_func, equal_func);
2356 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2360 mono_marshal_lock ();
2361 res = g_hash_table_lookup (cache, key);
2362 mono_marshal_unlock ();
2369 * Create a MonoMethod from MB, set INFO as wrapper info.
2372 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2373 int max_stack, WrapperInfo *info)
2377 res = mono_mb_create_method (mb, sig, max_stack);
2379 mono_marshal_set_wrapper_info (res, info);
2383 /* Create the method from the builder and place it in the cache */
2385 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2386 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2387 int max_stack, WrapperInfo *info, gboolean *out_found)
2394 mono_marshal_lock ();
2395 res = g_hash_table_lookup (cache, key);
2396 mono_marshal_unlock ();
2399 newm = mono_mb_create_method (mb, sig, max_stack);
2400 mono_marshal_lock ();
2401 res = g_hash_table_lookup (cache, key);
2404 g_hash_table_insert (cache, key, res);
2406 mono_marshal_set_wrapper_info (res, info);
2408 mono_marshal_set_wrapper_info (res, key);
2409 mono_marshal_unlock ();
2413 mono_marshal_unlock ();
2414 mono_free_method (newm);
2422 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2423 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2426 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2430 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2433 int wrapper_type = wrapper->wrapper_type;
2436 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2439 switch (wrapper_type) {
2440 case MONO_WRAPPER_REMOTING_INVOKE:
2441 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2442 case MONO_WRAPPER_XDOMAIN_INVOKE:
2443 case MONO_WRAPPER_SYNCHRONIZED:
2444 case MONO_WRAPPER_UNBOX:
2445 res = mono_marshal_get_wrapper_info (wrapper);
2448 if (wrapper->is_inflated) {
2452 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2453 * contains an uninflated method.
2455 result = mono_class_inflate_generic_method_checked (res, mono_method_get_context (wrapper), &error);
2456 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2460 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2461 info = mono_marshal_get_wrapper_info (wrapper);
2462 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2463 return info->d.managed_to_native.method;
2466 case MONO_WRAPPER_RUNTIME_INVOKE:
2467 info = mono_marshal_get_wrapper_info (wrapper);
2468 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2469 return info->d.runtime_invoke.method;
2478 * mono_marshal_get_wrapper_info:
2480 * Retrieve the pointer stored by mono_marshal_set_wrapper_info. The type of data
2481 * returned depends on the wrapper type. It is usually a method, a class, or a
2482 * WrapperInfo structure.
2485 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2487 g_assert (wrapper->wrapper_type);
2489 return mono_method_get_wrapper_data (wrapper, 1);
2493 * mono_marshal_set_wrapper_info:
2495 * Store an arbitrary pointer inside the wrapper which is retrievable by
2496 * mono_marshal_get_wrapper_info. The format of the data depends on the type of the
2497 * wrapper (method->wrapper_type).
2500 mono_marshal_set_wrapper_info (MonoMethod *method, gpointer data)
2504 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2507 datav = ((MonoMethodWrapper *)method)->method_data;
2512 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2516 info = mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2517 info->subtype = subtype;
2522 * get_wrapper_target_class:
2524 * Return the class where a wrapper method should be placed.
2527 get_wrapper_target_class (MonoImage *image)
2534 * - can't put all wrappers into an mscorlib class, because they reference
2535 * metadata (signature) so they should be put into the same image as the
2536 * method they wrap, so they are unloaded together.
2537 * - putting them into a class with a type initalizer could cause the
2538 * initializer to be executed which can be a problem if the wrappers are
2540 * - putting them into an inflated class can cause problems if the the
2541 * class is deleted because it references an image which is unloaded.
2542 * To avoid these problems, we put the wrappers into the <Module> class of
2545 if (image_is_dynamic (image)) {
2546 klass = ((MonoDynamicImage*)image)->wrappers_type;
2548 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2549 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2557 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2558 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2562 * check_generic_wrapper_cache:
2564 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2565 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2566 * generic method definition.
2569 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2572 MonoMethod *inst, *def;
2573 MonoGenericContext *ctx;
2575 g_assert (orig_method->is_inflated);
2576 ctx = mono_method_get_context (orig_method);
2579 * Look for the instance
2581 res = mono_marshal_find_in_cache (cache, key);
2586 * Look for the definition
2588 def = mono_marshal_find_in_cache (cache, def_key);
2591 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2592 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2594 mono_memory_barrier ();
2595 mono_marshal_lock ();
2596 res = g_hash_table_lookup (cache, key);
2598 g_hash_table_insert (cache, key, inst);
2601 mono_marshal_unlock ();
2608 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2611 MonoMethod *inst, *res;
2614 * We use the same cache for the generic definition and the instances.
2616 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2617 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2618 mono_memory_barrier ();
2619 mono_marshal_lock ();
2620 res = g_hash_table_lookup (cache, key);
2622 g_hash_table_insert (cache, key, inst);
2625 mono_marshal_unlock ();
2630 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2634 MonoMethod *inst, *def;
2637 * Look for the instance
2639 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2644 * Look for the definition
2646 def = mono_marshal_find_in_cache (cache, def_method->klass);
2648 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2649 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2652 mono_memory_barrier ();
2653 mono_marshal_lock ();
2654 res = g_hash_table_lookup (cache, orig_method->klass);
2656 g_hash_table_insert (cache, orig_method->klass, inst);
2659 mono_marshal_unlock ();
2666 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2669 MonoMethod *inst, *res;
2672 * We use the same cache for the generic definition and the instances.
2674 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2675 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2677 mono_memory_barrier ();
2678 mono_marshal_lock ();
2679 res = g_hash_table_lookup (cache, orig_method->klass);
2681 g_hash_table_insert (cache, orig_method->klass, inst);
2684 mono_marshal_unlock ();
2689 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2691 MonoMethodSignature *sig;
2692 MonoMethodBuilder *mb;
2697 MonoGenericContext *ctx = NULL;
2698 MonoMethod *orig_method = NULL;
2700 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2701 !strcmp (method->name, "BeginInvoke"));
2704 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2706 if (method->is_inflated) {
2707 orig_method = method;
2708 ctx = &((MonoMethodInflated*)method)->context;
2709 method = ((MonoMethodInflated*)method)->declaring;
2712 sig = mono_signature_no_pinvoke (method);
2718 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2719 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2723 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2724 (GHashFunc)mono_signature_hash,
2725 (GCompareFunc)mono_metadata_signature_equal);
2726 if ((res = mono_marshal_find_in_cache (cache, sig)))
2730 g_assert (sig->hasthis);
2732 name = mono_signature_to_name (sig, "begin_invoke");
2734 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2736 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2740 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2742 mono_mb_emit_ldarg (mb, 0);
2743 mono_mb_emit_ldloc (mb, params_var);
2744 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2745 mono_mb_emit_byte (mb, CEE_RET);
2750 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2751 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2753 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2761 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2763 MonoDomain *domain = mono_domain_get ();
2764 MonoAsyncResult *ares;
2765 MonoMethod *method = NULL;
2766 MonoMethodSignature *sig;
2767 MonoMethodMessage *msg;
2768 MonoObject *res, *exc;
2769 MonoArray *out_args;
2772 g_assert (delegate);
2774 if (!delegate->method_info) {
2775 g_assert (delegate->method);
2776 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2779 if (!delegate->method_info || !delegate->method_info->method)
2780 g_assert_not_reached ();
2782 klass = delegate->object.vtable->klass;
2784 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2785 g_assert (method != NULL);
2787 sig = mono_signature_no_pinvoke (method);
2789 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2791 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2793 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."));
2797 if (ares->async_delegate != (MonoObject*)delegate) {
2798 mono_raise_exception (mono_get_exception_invalid_operation (
2799 "The IAsyncResult object provided does not match this delegate."));
2803 #ifndef DISABLE_REMOTING
2804 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2805 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2806 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2807 mono_message_init (domain, msg, delegate->method_info, NULL);
2808 msg->call_type = CallType_EndInvoke;
2809 MONO_OBJECT_SETREF (msg, async_result, ares);
2810 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2814 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc);
2818 if (((MonoException*)exc)->stack_trace) {
2819 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2821 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2823 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2826 mono_raise_exception ((MonoException*)exc);
2829 mono_method_return_message_restore (method, params, out_args);
2836 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2838 MonoType *t = mono_type_get_underlying_type (return_type);
2840 if (return_type->byref)
2841 return_type = &mono_defaults.int_class->byval_arg;
2844 case MONO_TYPE_VOID:
2845 g_assert_not_reached ();
2848 case MONO_TYPE_STRING:
2849 case MONO_TYPE_CLASS:
2850 case MONO_TYPE_OBJECT:
2851 case MONO_TYPE_ARRAY:
2852 case MONO_TYPE_SZARRAY:
2856 case MONO_TYPE_BOOLEAN:
2859 case MONO_TYPE_CHAR:
2869 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2870 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2872 case MONO_TYPE_GENERICINST:
2873 if (!mono_type_generic_inst_is_valuetype (t))
2876 case MONO_TYPE_VALUETYPE: {
2877 MonoClass *klass = mono_class_from_mono_type (return_type);
2878 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2879 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2883 case MONO_TYPE_MVAR: {
2884 MonoClass *klass = mono_class_from_mono_type (return_type);
2885 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
2889 g_warning ("type 0x%x not handled", return_type->type);
2890 g_assert_not_reached ();
2893 mono_mb_emit_byte (mb, CEE_RET);
2896 #endif /* DISABLE_JIT */
2899 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2901 MonoMethodSignature *sig;
2902 MonoMethodBuilder *mb;
2907 MonoGenericContext *ctx = NULL;
2908 MonoMethod *orig_method = NULL;
2910 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2911 !strcmp (method->name, "EndInvoke"));
2914 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2916 if (method->is_inflated) {
2917 orig_method = method;
2918 ctx = &((MonoMethodInflated*)method)->context;
2919 method = ((MonoMethodInflated*)method)->declaring;
2922 sig = mono_signature_no_pinvoke (method);
2928 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
2929 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2933 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
2934 (GHashFunc)mono_signature_hash,
2935 (GCompareFunc)mono_metadata_signature_equal);
2936 if ((res = mono_marshal_find_in_cache (cache, sig)))
2940 g_assert (sig->hasthis);
2942 name = mono_signature_to_name (sig, "end_invoke");
2944 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2946 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2950 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2952 mono_mb_emit_ldarg (mb, 0);
2953 mono_mb_emit_ldloc (mb, params_var);
2954 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2956 if (sig->ret->type == MONO_TYPE_VOID) {
2957 mono_mb_emit_byte (mb, CEE_POP);
2958 mono_mb_emit_byte (mb, CEE_RET);
2960 mono_mb_emit_restore_result (mb, sig->ret);
2965 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2966 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2968 res = mono_mb_create_and_cache (cache, sig,
2969 mb, sig, sig->param_count + 16);
2978 MonoMethodSignature *sig;
2980 } SignaturePointerPair;
2983 signature_pointer_pair_hash (gconstpointer data)
2985 SignaturePointerPair *pair = (SignaturePointerPair*)data;
2987 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
2991 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
2993 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
2994 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
2998 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3000 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3002 return pair->pointer == user_data;
3006 free_signature_pointer_pair (SignaturePointerPair *pair)
3012 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3014 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3016 MonoMethodBuilder *mb;
3019 gpointer cache_key = NULL;
3020 SignaturePointerPair key;
3021 SignaturePointerPair *new_key;
3022 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3023 int pos0, pos1, pos2;
3025 MonoClass *target_class = NULL;
3026 gboolean closed_over_null = FALSE;
3027 MonoGenericContext *ctx = NULL;
3028 MonoGenericContainer *container = NULL;
3029 MonoMethod *orig_method = NULL;
3031 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3035 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3036 !strcmp (method->name, "Invoke"));
3038 invoke_sig = sig = mono_signature_no_pinvoke (method);
3041 * If the delegate target is null, and the target method is not static, a virtual
3042 * call is made to that method with the first delegate argument as this. This is
3043 * a non-documented .NET feature.
3046 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3047 if (target_method->is_inflated) {
3048 MonoType *target_type;
3050 g_assert (method->signature->hasthis);
3051 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3052 mono_method_get_context (method));
3053 target_class = mono_class_from_mono_type (target_type);
3055 target_class = target_method->klass;
3058 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3061 if (static_method_with_first_arg_bound) {
3062 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3063 g_assert (!callvirt);
3064 invoke_sig = mono_method_signature (target_method);
3068 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3070 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3071 orig_method = method;
3072 ctx = &((MonoMethodInflated*)method)->context;
3073 method = ((MonoMethodInflated*)method)->declaring;
3075 container = mono_method_get_generic_container (method);
3077 container = method->klass->generic_container;
3078 g_assert (container);
3080 invoke_sig = sig = mono_signature_no_pinvoke (method);
3087 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3088 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3091 cache_key = method->klass;
3092 } else if (static_method_with_first_arg_bound) {
3093 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3094 (GHashFunc)mono_signature_hash,
3095 (GCompareFunc)mono_metadata_signature_equal);
3097 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3099 res = mono_marshal_find_in_cache (cache, invoke_sig);
3102 cache_key = invoke_sig;
3103 } else if (callvirt) {
3104 GHashTable **cache_ptr;
3106 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3108 /* We need to cache the signature+method pair */
3109 mono_marshal_lock ();
3111 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3113 key.sig = invoke_sig;
3114 key.pointer = target_method;
3115 res = g_hash_table_lookup (cache, &key);
3116 mono_marshal_unlock ();
3120 // Inflated methods should not be in this cache because it's not stored on the imageset.
3121 g_assert (!method->is_inflated);
3122 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3123 (GHashFunc)mono_signature_hash,
3124 (GCompareFunc)mono_metadata_signature_equal);
3125 res = mono_marshal_find_in_cache (cache, sig);
3131 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3132 static_sig->hasthis = 0;
3133 if (!static_method_with_first_arg_bound)
3134 invoke_sig = static_sig;
3136 if (static_method_with_first_arg_bound)
3137 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3138 else if (closed_over_null)
3139 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3141 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3143 name = mono_signature_to_name (invoke_sig, "invoke");
3145 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3147 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3151 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3153 /* allocate local 0 (object) */
3154 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3155 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3156 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3157 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3158 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3161 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3163 g_assert (sig->hasthis);
3166 * {type: sig->ret} res;
3167 * if (delegates == null) {
3168 * return this.<target> ( args .. );
3170 * int i = 0, len = this.delegates.Length;
3172 * res = this.delegates [i].Invoke ( args .. );
3173 * } while (++i < len);
3178 /* this wrapper can be used in unmanaged-managed transitions */
3179 emit_thread_interrupt_checkpoint (mb);
3181 /* delegates = this.delegates */
3182 mono_mb_emit_ldarg (mb, 0);
3183 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3184 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3185 mono_mb_emit_stloc (mb, local_delegates);
3188 /* if (delegates == null) */
3189 mono_mb_emit_ldloc (mb, local_delegates);
3190 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3192 /* return target.<target_method|method_ptr> ( args .. ); */
3194 /* target = d.target; */
3195 mono_mb_emit_ldarg (mb, 0);
3196 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3197 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3198 mono_mb_emit_stloc (mb, local_target);
3200 /*static methods with bound first arg can have null target and still be bound*/
3201 if (!static_method_with_first_arg_bound) {
3202 /* if target != null */
3203 mono_mb_emit_ldloc (mb, local_target);
3204 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3206 /* then call this->method_ptr nonstatic */
3209 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3211 mono_mb_emit_ldloc (mb, local_target);
3212 for (i = 0; i < sig->param_count; ++i)
3213 mono_mb_emit_ldarg (mb, i + 1);
3214 mono_mb_emit_ldarg (mb, 0);
3215 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3216 mono_mb_emit_byte (mb, CEE_LDIND_I );
3217 mono_mb_emit_op (mb, CEE_CALLI, sig);
3219 mono_mb_emit_byte (mb, CEE_RET);
3222 /* else [target == null] call this->method_ptr static */
3223 mono_mb_patch_branch (mb, pos0);
3227 if (!closed_over_null) {
3228 if (target_class->valuetype) {
3229 mono_mb_emit_ldarg (mb, 1);
3230 for (i = 1; i < sig->param_count; ++i)
3231 mono_mb_emit_ldarg (mb, i + 1);
3232 mono_mb_emit_op (mb, CEE_CALL, target_method);
3234 mono_mb_emit_ldarg (mb, 1);
3235 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3236 for (i = 1; i < sig->param_count; ++i)
3237 mono_mb_emit_ldarg (mb, i + 1);
3238 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3241 mono_mb_emit_byte (mb, CEE_LDNULL);
3242 for (i = 0; i < sig->param_count; ++i)
3243 mono_mb_emit_ldarg (mb, i + 1);
3244 mono_mb_emit_op (mb, CEE_CALL, target_method);
3247 if (static_method_with_first_arg_bound) {
3248 mono_mb_emit_ldloc (mb, local_target);
3249 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3250 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3252 for (i = 0; i < sig->param_count; ++i)
3253 mono_mb_emit_ldarg (mb, i + 1);
3254 mono_mb_emit_ldarg (mb, 0);
3255 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3256 mono_mb_emit_byte (mb, CEE_LDIND_I );
3257 mono_mb_emit_op (mb, CEE_CALLI, invoke_sig);
3260 mono_mb_emit_byte (mb, CEE_RET);
3262 /* else [delegates != null] */
3263 mono_mb_patch_branch (mb, pos2);
3265 /* len = delegates.Length; */
3266 mono_mb_emit_ldloc (mb, local_delegates);
3267 mono_mb_emit_byte (mb, CEE_LDLEN);
3268 mono_mb_emit_byte (mb, CEE_CONV_I4);
3269 mono_mb_emit_stloc (mb, local_len);
3272 mono_mb_emit_icon (mb, 0);
3273 mono_mb_emit_stloc (mb, local_i);
3275 pos1 = mono_mb_get_label (mb);
3277 /* d = delegates [i]; */
3278 mono_mb_emit_ldloc (mb, local_delegates);
3279 mono_mb_emit_ldloc (mb, local_i);
3280 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3281 mono_mb_emit_stloc (mb, local_d);
3283 /* res = d.Invoke ( args .. ); */
3284 mono_mb_emit_ldloc (mb, local_d);
3285 for (i = 0; i < sig->param_count; i++)
3286 mono_mb_emit_ldarg (mb, i + 1);
3288 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3291 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3292 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3295 mono_mb_emit_stloc (mb, local_res);
3298 mono_mb_emit_add_to_local (mb, local_i, 1);
3301 mono_mb_emit_ldloc (mb, local_i);
3302 mono_mb_emit_ldloc (mb, local_len);
3303 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3307 mono_mb_emit_ldloc (mb, local_res);
3308 mono_mb_emit_byte (mb, CEE_RET);
3310 mb->skip_visibility = 1;
3311 #endif /* DISABLE_JIT */
3316 def = mono_mb_create_and_cache (cache, cache_key, mb, sig, sig->param_count + 16);
3317 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3318 } else if (callvirt) {
3319 new_key = g_new0 (SignaturePointerPair, 1);
3322 info = mono_wrapper_info_create (mb, subtype);
3324 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3328 info = mono_wrapper_info_create (mb, subtype);
3330 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3334 /* mono_method_print_code (res); */
3340 * the returned method invokes all methods in a multicast delegate.
3343 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3345 gboolean callvirt = FALSE;
3346 gboolean static_method_with_first_arg_bound = FALSE;
3347 MonoMethod *target_method = NULL;
3348 MonoMethodSignature *sig;
3350 sig = mono_signature_no_pinvoke (method);
3352 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3354 target_method = del->method;
3357 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3358 static_method_with_first_arg_bound = TRUE;
3359 target_method = del->method;
3362 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3366 MonoMethodSignature *ctor_sig;
3367 MonoMethodSignature *sig;
3370 /* protected by the marshal lock, contains CtorSigPair pointers */
3371 static GSList *strsig_list = NULL;
3373 static MonoMethodSignature *
3374 lookup_string_ctor_signature (MonoMethodSignature *sig)
3376 MonoMethodSignature *callsig;
3380 mono_marshal_lock ();
3382 for (item = strsig_list; item; item = item->next) {
3384 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3385 * because it is lock-free.
3387 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3392 mono_marshal_unlock ();
3396 static MonoMethodSignature *
3397 add_string_ctor_signature (MonoMethod *method)
3399 MonoMethodSignature *callsig;
3402 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3403 callsig->ret = &mono_defaults.string_class->byval_arg;
3404 cs = g_new (CtorSigPair, 1);
3406 cs->ctor_sig = mono_method_signature (method);
3408 mono_marshal_lock ();
3409 strsig_list = g_slist_prepend (strsig_list, cs);
3410 mono_marshal_unlock ();
3415 * mono_marshal_get_string_ctor_signature:
3417 * Return the modified signature used by string ctors (they return the newly created
3420 MonoMethodSignature*
3421 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3423 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3425 sig = add_string_ctor_signature (method);
3431 get_runtime_invoke_type (MonoType *t, gboolean ret)
3434 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3436 /* Can't share this with 'I' as that needs another indirection */
3437 return &mono_defaults.int_class->this_arg;
3440 if (MONO_TYPE_IS_REFERENCE (t))
3441 return &mono_defaults.object_class->byval_arg;
3444 /* The result needs to be boxed */
3449 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3452 return &mono_defaults.sbyte_class->byval_arg;
3454 return &mono_defaults.int16_class->byval_arg;
3456 return &mono_defaults.int32_class->byval_arg;
3459 return &mono_defaults.int64_class->byval_arg;
3460 case MONO_TYPE_BOOLEAN:
3461 return &mono_defaults.byte_class->byval_arg;
3462 case MONO_TYPE_CHAR:
3463 return &mono_defaults.uint16_class->byval_arg;
3466 return &mono_defaults.int_class->byval_arg;
3467 case MONO_TYPE_VALUETYPE:
3468 if (t->data.klass->enumtype) {
3469 t = mono_class_enum_basetype (t->data.klass);
3479 * mono_marshal_get_runtime_invoke_sig:
3481 * Return a common signature used for sharing runtime invoke wrappers.
3483 static MonoMethodSignature*
3484 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3486 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3489 res->generic_param_count = 0;
3490 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3491 for (i = 0; i < res->param_count; ++i)
3492 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3498 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3500 /* Can't share wrappers which return a vtype since it needs to be boxed */
3501 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))
3504 return mono_metadata_signature_equal (sig1, sig2);
3512 * Emit the call to the wrapper method from a runtime invoke wrapper.
3515 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3516 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3518 gboolean virtual, gboolean need_direct_wrapper)
3520 static MonoString *string_dummy = NULL;
3522 int *tmp_nullable_locals;
3523 gboolean void_ret = FALSE;
3525 /* to make it work with our special string constructors */
3526 if (!string_dummy) {
3527 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy);
3528 string_dummy = mono_string_new_wrapper ("dummy");
3532 g_assert (sig->hasthis);
3533 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3537 if (method->string_ctor) {
3538 if (mono_gc_is_moving ()) {
3539 mono_mb_emit_ptr (mb, &string_dummy);
3540 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3542 mono_mb_emit_ptr (mb, string_dummy);
3545 mono_mb_emit_ldarg (mb, 0);
3549 tmp_nullable_locals = g_new0 (int, sig->param_count);
3551 for (i = 0; i < sig->param_count; i++) {
3552 MonoType *t = sig->params [i];
3555 mono_mb_emit_ldarg (mb, 1);
3557 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3558 mono_mb_emit_byte (mb, CEE_ADD);
3562 mono_mb_emit_byte (mb, CEE_LDIND_I);
3563 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3564 * So to make this work we unbox it to a local variablee and push a reference to that.
3566 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3567 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3569 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3570 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3571 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3576 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3577 type = sig->params [i]->type;
3581 case MONO_TYPE_BOOLEAN:
3585 case MONO_TYPE_CHAR:
3594 mono_mb_emit_byte (mb, CEE_LDIND_I);
3595 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3597 case MONO_TYPE_STRING:
3598 case MONO_TYPE_CLASS:
3599 case MONO_TYPE_ARRAY:
3601 case MONO_TYPE_SZARRAY:
3602 case MONO_TYPE_OBJECT:
3603 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3605 case MONO_TYPE_GENERICINST:
3606 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3607 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3612 case MONO_TYPE_VALUETYPE:
3613 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3614 type = mono_class_enum_basetype (t->data.klass)->type;
3617 mono_mb_emit_byte (mb, CEE_LDIND_I);
3618 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3619 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3620 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3621 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3623 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3627 g_assert_not_reached ();
3632 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3633 } else if (need_direct_wrapper) {
3634 mono_mb_emit_op (mb, CEE_CALL, method);
3636 mono_mb_emit_ldarg (mb, 3);
3637 mono_mb_emit_calli (mb, callsig);
3640 if (sig->ret->byref) {
3642 g_assert_not_reached ();
3645 switch (sig->ret->type) {
3646 case MONO_TYPE_VOID:
3647 if (!method->string_ctor)
3650 case MONO_TYPE_BOOLEAN:
3651 case MONO_TYPE_CHAR:
3664 case MONO_TYPE_VALUETYPE:
3665 case MONO_TYPE_TYPEDBYREF:
3666 case MONO_TYPE_GENERICINST:
3667 /* box value types */
3668 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3670 case MONO_TYPE_STRING:
3671 case MONO_TYPE_CLASS:
3672 case MONO_TYPE_ARRAY:
3673 case MONO_TYPE_SZARRAY:
3674 case MONO_TYPE_OBJECT:
3678 /* The result is an IntPtr */
3679 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3682 g_assert_not_reached ();
3686 mono_mb_emit_stloc (mb, loc_res);
3688 /* Convert back nullable-byref arguments */
3689 for (i = 0; i < sig->param_count; i++) {
3690 MonoType *t = sig->params [i];
3693 * Box the result and put it back into the array, the caller will have
3694 * to obtain it from there.
3696 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3697 mono_mb_emit_ldarg (mb, 1);
3698 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3699 mono_mb_emit_byte (mb, CEE_ADD);
3701 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3702 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3704 mono_mb_emit_byte (mb, CEE_STIND_REF);
3708 g_free (tmp_nullable_locals);
3712 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoClass *target_klass, MonoMethod *method,
3713 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3714 gboolean virtual, gboolean need_direct_wrapper)
3717 MonoExceptionClause *clause;
3718 int loc_res, loc_exc;
3720 /* The wrapper looks like this:
3726 * } catch (Exception e) {
3734 /* allocate local 0 (object) tmp */
3735 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3736 /* allocate local 1 (object) exc */
3737 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3739 /* *exc is assumed to be initialized to NULL by the caller */
3741 mono_mb_emit_byte (mb, CEE_LDARG_2);
3742 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3747 labels [1] = mono_mb_get_label (mb);
3748 emit_thread_force_interrupt_checkpoint (mb);
3749 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
3751 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3753 /* Add a try clause around the call */
3754 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
3755 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3756 clause->data.catch_class = mono_defaults.exception_class;
3757 clause->try_offset = labels [1];
3758 clause->try_len = mono_mb_get_label (mb) - labels [1];
3760 clause->handler_offset = mono_mb_get_label (mb);
3763 mono_mb_emit_stloc (mb, loc_exc);
3764 mono_mb_emit_byte (mb, CEE_LDARG_2);
3765 mono_mb_emit_ldloc (mb, loc_exc);
3766 mono_mb_emit_byte (mb, CEE_STIND_REF);
3768 mono_mb_emit_branch (mb, CEE_LEAVE);
3770 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3772 mono_mb_set_clauses (mb, 1, clause);
3774 mono_mb_patch_branch (mb, labels [2]);
3775 mono_mb_emit_ldloc (mb, loc_res);
3776 mono_mb_emit_byte (mb, CEE_RET);
3781 mono_mb_patch_branch (mb, labels [0]);
3782 emit_thread_force_interrupt_checkpoint (mb);
3783 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
3785 mono_mb_emit_ldloc (mb, 0);
3786 mono_mb_emit_byte (mb, CEE_RET);
3791 * generates IL code for the runtime invoke function
3792 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
3794 * we also catch exceptions if exc != null
3795 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3796 * it means that the compiled code for METHOD does not have to be looked up
3797 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3798 * its METHOD argument.
3801 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual)
3803 MonoMethodSignature *sig, *csig, *callsig;
3804 MonoMethodBuilder *mb;
3805 GHashTable *cache = NULL;
3806 MonoClass *target_klass;
3807 MonoMethod *res = NULL;
3808 static MonoMethodSignature *cctor_signature = NULL;
3809 static MonoMethodSignature *finalize_signature = NULL;
3811 const char *param_names [16];
3812 gboolean need_direct_wrapper = FALSE;
3817 if (!cctor_signature) {
3818 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3819 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3821 if (!finalize_signature) {
3822 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3823 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3824 finalize_signature->hasthis = 1;
3828 need_direct_wrapper = TRUE;
3831 * Use a separate cache indexed by methods to speed things up and to avoid the
3832 * boundless mempool growth caused by the signature_dup stuff below.
3835 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
3837 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
3839 res = mono_marshal_find_in_cache (cache, method);
3843 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3844 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
3846 * Array Get/Set/Address methods. The JIT implements them using inline code
3847 * so we need to create an invoke wrapper which calls the method directly.
3849 need_direct_wrapper = TRUE;
3852 if (method->string_ctor) {
3853 callsig = lookup_string_ctor_signature (mono_method_signature (method));
3855 callsig = add_string_ctor_signature (method);
3856 /* Can't share this as we push a string as this */
3857 need_direct_wrapper = TRUE;
3859 if (method_is_dynamic (method))
3860 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3862 callsig = mono_method_signature (method);
3865 target_klass = get_wrapper_target_class (method->klass->image);
3867 /* Try to share wrappers for non-corlib methods with simple signatures */
3868 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
3869 callsig = cctor_signature;
3870 target_klass = mono_defaults.object_class;
3871 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
3872 callsig = finalize_signature;
3873 target_klass = mono_defaults.object_class;
3876 if (need_direct_wrapper) {
3877 /* Already searched at the start */
3879 MonoMethodSignature *tmp_sig;
3881 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
3882 GHashTable **cache_table = NULL;
3884 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3885 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
3887 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
3889 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
3890 (GCompareFunc)runtime_invoke_signature_equal);
3892 /* from mono_marshal_find_in_cache */
3893 mono_marshal_lock ();
3894 res = g_hash_table_lookup (cache, callsig);
3895 mono_marshal_unlock ();
3902 /* Make a copy of the signature from the image mempool */
3904 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
3908 sig = mono_method_signature (method);
3910 csig = mono_metadata_signature_alloc (target_klass->image, 4);
3912 csig->ret = &mono_defaults.object_class->byval_arg;
3913 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3914 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
3916 csig->params [0] = &mono_defaults.object_class->byval_arg;
3917 csig->params [1] = &mono_defaults.int_class->byval_arg;
3918 csig->params [2] = &mono_defaults.int_class->byval_arg;
3919 csig->params [3] = &mono_defaults.int_class->byval_arg;
3922 /* This is called from runtime code so it has to be cdecl */
3923 csig->call_convention = MONO_CALL_C;
3926 name = mono_signature_to_name (callsig, virtual ? "runtime_invoke_virtual" : "runtime_invoke");
3927 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
3931 param_names [0] = "this";
3932 param_names [1] = "params";
3933 param_names [2] = "exc";
3934 param_names [3] = "method";
3935 mono_mb_set_param_names (mb, param_names);
3937 emit_runtime_invoke_body (mb, target_klass, method, sig, callsig, virtual, need_direct_wrapper);
3940 if (need_direct_wrapper) {
3942 mb->skip_visibility = 1;
3944 info = mono_wrapper_info_create (mb, virtual ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
3945 info->d.runtime_invoke.method = method;
3946 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
3948 /* taken from mono_mb_create_and_cache */
3949 mono_marshal_lock ();
3950 res = g_hash_table_lookup (cache, callsig);
3951 mono_marshal_unlock ();
3953 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
3954 info->d.runtime_invoke.sig = callsig;
3956 /* Somebody may have created it before us */
3959 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
3961 mono_marshal_lock ();
3962 res = g_hash_table_lookup (cache, callsig);
3964 GHashTable *direct_cache;
3966 g_hash_table_insert (cache, callsig, res);
3967 /* Can't insert it into wrapper_hash since the key is a signature */
3968 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
3970 g_hash_table_insert (direct_cache, method, res);
3972 mono_free_method (newm);
3974 mono_marshal_unlock ();
3977 /* end mono_mb_create_and_cache */
3986 * mono_marshal_get_runtime_invoke_dynamic:
3988 * Return a method which can be used to invoke managed methods from native code
3990 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
3991 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
3992 * ARGS should point to an architecture specific structure containing
3993 * the arguments and space for the return value.
3994 * The other arguments are the same as for runtime_invoke (), except that
3995 * ARGS should contain the this argument too.
3996 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
3997 * is only one copy of it, which is useful in full-aot.
3998 * The wrapper info for the wrapper is a WrapperInfo structure.
4001 mono_marshal_get_runtime_invoke_dynamic (void)
4003 static MonoMethod *method;
4004 MonoMethodSignature *csig;
4005 MonoExceptionClause *clause;
4006 MonoMethodBuilder *mb;
4014 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4016 csig->ret = &mono_defaults.void_class->byval_arg;
4017 csig->params [0] = &mono_defaults.int_class->byval_arg;
4018 csig->params [1] = &mono_defaults.int_class->byval_arg;
4019 csig->params [2] = &mono_defaults.int_class->byval_arg;
4020 csig->params [3] = &mono_defaults.int_class->byval_arg;
4022 name = g_strdup ("runtime_invoke_dynamic");
4023 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4027 /* allocate local 0 (object) tmp */
4028 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4029 /* allocate local 1 (object) exc */
4030 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4032 /* cond set *exc to null */
4033 mono_mb_emit_byte (mb, CEE_LDARG_1);
4034 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4035 mono_mb_emit_byte (mb, 3);
4036 mono_mb_emit_byte (mb, CEE_LDARG_1);
4037 mono_mb_emit_byte (mb, CEE_LDNULL);
4038 mono_mb_emit_byte (mb, CEE_STIND_REF);
4040 emit_thread_force_interrupt_checkpoint (mb);
4042 mono_mb_emit_byte (mb, CEE_LDARG_0);
4043 mono_mb_emit_byte (mb, CEE_LDARG_2);
4044 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4045 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4047 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4049 clause = mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4050 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4051 clause->try_len = mono_mb_get_label (mb);
4054 clause->data.filter_offset = mono_mb_get_label (mb);
4056 mono_mb_emit_byte (mb, CEE_POP);
4057 mono_mb_emit_byte (mb, CEE_LDARG_1);
4058 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4059 mono_mb_emit_byte (mb, CEE_PREFIX1);
4060 mono_mb_emit_byte (mb, CEE_CGT_UN);
4061 mono_mb_emit_byte (mb, CEE_PREFIX1);
4062 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4064 clause->handler_offset = mono_mb_get_label (mb);
4067 /* store exception */
4068 mono_mb_emit_stloc (mb, 1);
4070 mono_mb_emit_byte (mb, CEE_LDARG_1);
4071 mono_mb_emit_ldloc (mb, 1);
4072 mono_mb_emit_byte (mb, CEE_STIND_REF);
4074 mono_mb_emit_byte (mb, CEE_LDNULL);
4075 mono_mb_emit_stloc (mb, 0);
4077 /* Check for the abort exception */
4078 mono_mb_emit_ldloc (mb, 1);
4079 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4080 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4082 /* Delay the abort exception */
4083 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4085 mono_mb_patch_short_branch (mb, posna);
4086 mono_mb_emit_branch (mb, CEE_LEAVE);
4088 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4090 mono_mb_set_clauses (mb, 1, clause);
4093 mono_mb_patch_branch (mb, pos);
4094 //mono_mb_emit_ldloc (mb, 0);
4095 mono_mb_emit_byte (mb, CEE_RET);
4096 #endif /* DISABLE_JIT */
4098 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4100 mono_marshal_lock ();
4101 /* double-checked locking */
4103 method = mono_mb_create (mb, csig, 16, info);
4105 mono_marshal_unlock ();
4114 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4116 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4117 klass->name_space, klass->name);
4119 mono_mb_emit_exception_marshal_directive (mb, msg);
4124 * generates IL code for the icall wrapper (the generated method
4125 * calls the unmanaged code in func)
4126 * The wrapper info for the wrapper is a WrapperInfo structure.
4129 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4131 MonoMethodSignature *csig, *csig2;
4132 MonoMethodBuilder *mb;
4137 g_assert (sig->pinvoke);
4139 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4141 mb->method->save_lmf = 1;
4143 /* Add an explicit this argument */
4145 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4147 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4151 mono_mb_emit_byte (mb, CEE_LDARG_0);
4153 for (i = 0; i < sig->param_count; i++)
4154 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4156 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4157 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4158 mono_mb_emit_calli (mb, csig2);
4159 if (check_exceptions)
4160 emit_thread_interrupt_checkpoint (mb);
4161 mono_mb_emit_byte (mb, CEE_RET);
4164 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4166 if (csig->call_convention == MONO_CALL_VARARG)
4167 csig->call_convention = 0;
4169 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4170 info->d.icall.func = (gpointer)func;
4171 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4178 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4179 MonoMarshalSpec *spec,
4180 int conv_arg, MonoType **conv_arg_type,
4181 MarshalAction action)
4184 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4185 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4190 static MonoClass *ICustomMarshaler = NULL;
4191 static MonoMethod *cleanup_native, *cleanup_managed;
4192 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4193 MonoMethod *get_instance = NULL;
4194 MonoMethodBuilder *mb = m->mb;
4195 char *exception_msg = NULL;
4199 if (!ICustomMarshaler) {
4200 MonoClass *klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
4202 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4203 goto handle_exception;
4206 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4207 g_assert (cleanup_native);
4208 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4209 g_assert (cleanup_managed);
4210 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4211 g_assert (marshal_managed_to_native);
4212 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4213 g_assert (marshal_native_to_managed);
4215 mono_memory_barrier ();
4216 ICustomMarshaler = klass;
4219 if (spec->data.custom_data.image)
4220 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, spec->data.custom_data.image);
4222 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
4223 g_assert (mtype != NULL);
4224 mklass = mono_class_from_mono_type (mtype);
4225 g_assert (mklass != NULL);
4227 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4228 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4230 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4232 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4233 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4234 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4235 (get_sig->params [0]->type != MONO_TYPE_STRING))
4236 get_instance = NULL;
4240 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);
4243 /* Throw exception and emit compensation code if neccesary */
4244 if (exception_msg) {
4246 case MARSHAL_ACTION_CONV_IN:
4247 case MARSHAL_ACTION_CONV_RESULT:
4248 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4249 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4250 mono_mb_emit_byte (mb, CEE_POP);
4252 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4253 g_free (exception_msg);
4256 case MARSHAL_ACTION_PUSH:
4257 mono_mb_emit_byte (mb, CEE_LDNULL);
4265 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4266 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4269 case MARSHAL_ACTION_CONV_IN:
4271 case MONO_TYPE_CLASS:
4272 case MONO_TYPE_OBJECT:
4273 case MONO_TYPE_STRING:
4274 case MONO_TYPE_ARRAY:
4275 case MONO_TYPE_SZARRAY:
4276 case MONO_TYPE_VALUETYPE:
4280 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4281 g_assert_not_reached ();
4285 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4287 mono_mb_emit_byte (mb, CEE_LDNULL);
4288 mono_mb_emit_stloc (mb, conv_arg);
4290 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4293 /* Minic MS.NET behavior */
4294 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4297 /* Check for null */
4298 mono_mb_emit_ldarg (mb, argnum);
4300 mono_mb_emit_byte (mb, CEE_LDIND_I);
4301 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4303 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4305 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4307 mono_mb_emit_ldarg (mb, argnum);
4309 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4311 if (t->type == MONO_TYPE_VALUETYPE) {
4313 * Since we can't determine the type of the argument, we
4314 * will assume the unmanaged function takes a pointer.
4316 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4318 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4321 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4322 mono_mb_emit_stloc (mb, conv_arg);
4324 mono_mb_patch_branch (mb, pos2);
4327 case MARSHAL_ACTION_CONV_OUT:
4328 /* Check for null */
4329 mono_mb_emit_ldloc (mb, conv_arg);
4330 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4333 mono_mb_emit_ldarg (mb, argnum);
4335 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4337 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4339 mono_mb_emit_ldloc (mb, conv_arg);
4340 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4341 mono_mb_emit_byte (mb, CEE_STIND_REF);
4342 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4343 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4345 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4347 mono_mb_emit_ldloc (mb, conv_arg);
4348 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4350 /* We have nowhere to store the result */
4351 mono_mb_emit_byte (mb, CEE_POP);
4354 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4356 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4358 mono_mb_emit_ldloc (mb, conv_arg);
4360 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4362 mono_mb_patch_branch (mb, pos2);
4365 case MARSHAL_ACTION_PUSH:
4367 mono_mb_emit_ldloc_addr (mb, conv_arg);
4369 mono_mb_emit_ldloc (mb, conv_arg);
4372 case MARSHAL_ACTION_CONV_RESULT:
4373 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4375 mono_mb_emit_stloc (mb, 3);
4377 mono_mb_emit_ldloc (mb, 3);
4378 mono_mb_emit_stloc (mb, loc1);
4380 /* Check for null */
4381 mono_mb_emit_ldloc (mb, 3);
4382 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4384 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4386 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4387 mono_mb_emit_byte (mb, CEE_DUP);
4389 mono_mb_emit_ldloc (mb, 3);
4390 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4391 mono_mb_emit_stloc (mb, 3);
4393 mono_mb_emit_ldloc (mb, loc1);
4394 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4396 mono_mb_patch_branch (mb, pos2);
4399 case MARSHAL_ACTION_MANAGED_CONV_IN:
4400 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4402 mono_mb_emit_byte (mb, CEE_LDNULL);
4403 mono_mb_emit_stloc (mb, conv_arg);
4405 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4408 /* Check for null */
4409 mono_mb_emit_ldarg (mb, argnum);
4411 mono_mb_emit_byte (mb, CEE_LDIND_I);
4412 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4414 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4415 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4417 mono_mb_emit_ldarg (mb, argnum);
4419 mono_mb_emit_byte (mb, CEE_LDIND_I);
4421 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4422 mono_mb_emit_stloc (mb, conv_arg);
4424 mono_mb_patch_branch (mb, pos2);
4427 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4428 g_assert (!t->byref);
4430 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4432 mono_mb_emit_stloc (mb, 3);
4434 mono_mb_emit_ldloc (mb, 3);
4435 mono_mb_emit_stloc (mb, loc1);
4437 /* Check for null */
4438 mono_mb_emit_ldloc (mb, 3);
4439 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4441 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4442 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4443 mono_mb_emit_byte (mb, CEE_DUP);
4445 mono_mb_emit_ldloc (mb, 3);
4446 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4447 mono_mb_emit_stloc (mb, 3);
4449 mono_mb_emit_ldloc (mb, loc1);
4450 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4452 mono_mb_patch_branch (mb, pos2);
4455 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4457 /* Check for null */
4458 mono_mb_emit_ldloc (mb, conv_arg);
4459 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4462 mono_mb_emit_ldarg (mb, argnum);
4464 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4466 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4468 mono_mb_emit_ldloc (mb, conv_arg);
4469 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4470 mono_mb_emit_byte (mb, CEE_STIND_I);
4473 /* Call CleanUpManagedData */
4474 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4476 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4478 mono_mb_emit_ldloc (mb, conv_arg);
4479 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4481 mono_mb_patch_branch (mb, pos2);
4485 g_assert_not_reached ();
4493 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4494 MonoMarshalSpec *spec,
4495 int conv_arg, MonoType **conv_arg_type,
4496 MarshalAction action)
4499 MonoMethodBuilder *mb = m->mb;
4502 case MARSHAL_ACTION_CONV_IN: {
4503 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4505 g_assert (t->type == MONO_TYPE_OBJECT);
4506 g_assert (!t->byref);
4508 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4509 mono_mb_emit_ldarg (mb, argnum);
4510 mono_mb_emit_icon (mb, encoding);
4511 mono_mb_emit_icon (mb, t->attrs);
4512 mono_mb_emit_icall (mb, mono_marshal_asany);
4513 mono_mb_emit_stloc (mb, conv_arg);
4517 case MARSHAL_ACTION_PUSH:
4518 mono_mb_emit_ldloc (mb, conv_arg);
4521 case MARSHAL_ACTION_CONV_OUT: {
4522 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4524 mono_mb_emit_ldarg (mb, argnum);
4525 mono_mb_emit_ldloc (mb, conv_arg);
4526 mono_mb_emit_icon (mb, encoding);
4527 mono_mb_emit_icon (mb, t->attrs);
4528 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4533 g_assert_not_reached ();
4540 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4541 MonoMarshalSpec *spec,
4542 int conv_arg, MonoType **conv_arg_type,
4543 MarshalAction action)
4546 MonoMethodBuilder *mb = m->mb;
4547 MonoClass *klass, *date_time_class;
4550 klass = mono_class_from_mono_type (t);
4552 date_time_class = mono_class_from_name_cached (mono_defaults.corlib, "System", "DateTime");
4555 case MARSHAL_ACTION_CONV_IN:
4556 if (klass == date_time_class) {
4557 /* Convert it to an OLE DATE type */
4558 static MonoMethod *to_oadate;
4561 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4562 g_assert (to_oadate);
4564 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4567 mono_mb_emit_ldarg (mb, argnum);
4568 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4571 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4573 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4575 mono_mb_emit_ldarg_addr (mb, argnum);
4576 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4577 mono_mb_emit_stloc (mb, conv_arg);
4581 mono_mb_patch_branch (mb, pos);
4585 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4586 klass->blittable || klass->enumtype)
4589 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4591 /* store the address of the source into local variable 0 */
4593 mono_mb_emit_ldarg (mb, argnum);
4595 mono_mb_emit_ldarg_addr (mb, argnum);
4597 mono_mb_emit_stloc (mb, 0);
4599 /* allocate space for the native struct and
4600 * store the address into local variable 1 (dest) */
4601 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4602 mono_mb_emit_byte (mb, CEE_PREFIX1);
4603 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4604 mono_mb_emit_stloc (mb, conv_arg);
4607 mono_mb_emit_ldloc (mb, 0);
4608 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4611 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4613 mono_mb_emit_ldloc (mb, conv_arg);
4614 mono_mb_emit_stloc (mb, 1);
4616 /* emit valuetype conversion code */
4617 emit_struct_conv (mb, klass, FALSE);
4621 mono_mb_patch_branch (mb, pos);
4624 case MARSHAL_ACTION_PUSH:
4625 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4627 g_assert (!t->byref);
4629 /* Have to change the signature since the vtype is passed byref */
4630 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4632 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4633 klass->blittable || klass->enumtype)
4634 mono_mb_emit_ldarg_addr (mb, argnum);
4636 mono_mb_emit_ldloc (mb, conv_arg);
4640 if (klass == date_time_class) {
4642 mono_mb_emit_ldloc_addr (mb, conv_arg);
4644 mono_mb_emit_ldloc (mb, conv_arg);
4648 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4649 klass->blittable || klass->enumtype) {
4650 mono_mb_emit_ldarg (mb, argnum);
4653 mono_mb_emit_ldloc (mb, conv_arg);
4655 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4656 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4660 case MARSHAL_ACTION_CONV_OUT:
4661 if (klass == date_time_class) {
4662 /* Convert from an OLE DATE type */
4663 static MonoMethod *from_oadate;
4668 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4670 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4671 g_assert (from_oadate);
4673 mono_mb_emit_ldarg (mb, argnum);
4674 mono_mb_emit_ldloc (mb, conv_arg);
4675 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4676 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4681 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4682 klass->blittable || klass->enumtype)
4686 /* dst = argument */
4687 mono_mb_emit_ldarg (mb, argnum);
4688 mono_mb_emit_stloc (mb, 1);
4690 mono_mb_emit_ldloc (mb, 1);
4691 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4693 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4694 /* src = tmp_locals [i] */
4695 mono_mb_emit_ldloc (mb, conv_arg);
4696 mono_mb_emit_stloc (mb, 0);
4698 /* emit valuetype conversion code */
4699 emit_struct_conv (mb, klass, TRUE);
4703 emit_struct_free (mb, klass, conv_arg);
4706 mono_mb_patch_branch (mb, pos);
4709 case MARSHAL_ACTION_CONV_RESULT:
4710 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4712 mono_mb_emit_stloc (mb, 3);
4716 /* load pointer to returned value type */
4717 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4718 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4719 /* store the address of the source into local variable 0 */
4720 mono_mb_emit_stloc (mb, 0);
4722 mono_mb_emit_ldloc_addr (mb, 3);
4723 mono_mb_emit_stloc (mb, 1);
4725 /* emit valuetype conversion code */
4726 emit_struct_conv (mb, klass, TRUE);
4729 case MARSHAL_ACTION_MANAGED_CONV_IN:
4730 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4731 klass->blittable || klass->enumtype) {
4736 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
4738 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4742 mono_mb_emit_ldarg (mb, argnum);
4744 mono_mb_emit_ldarg_addr (mb, argnum);
4745 mono_mb_emit_stloc (mb, 0);
4748 mono_mb_emit_ldloc (mb, 0);
4749 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4752 mono_mb_emit_ldloc_addr (mb, conv_arg);
4753 mono_mb_emit_stloc (mb, 1);
4755 /* emit valuetype conversion code */
4756 emit_struct_conv (mb, klass, TRUE);
4759 mono_mb_patch_branch (mb, pos);
4762 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4763 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4764 klass->blittable || klass->enumtype) {
4768 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
4771 /* Check for null */
4772 mono_mb_emit_ldarg (mb, argnum);
4773 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4776 mono_mb_emit_ldloc_addr (mb, conv_arg);
4777 mono_mb_emit_stloc (mb, 0);
4780 mono_mb_emit_ldarg (mb, argnum);
4781 mono_mb_emit_stloc (mb, 1);
4783 /* emit valuetype conversion code */
4784 emit_struct_conv (mb, klass, FALSE);
4786 mono_mb_patch_branch (mb, pos2);
4789 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4790 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4791 klass->blittable || klass->enumtype) {
4792 mono_mb_emit_stloc (mb, 3);
4797 /* load pointer to returned value type */
4798 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4799 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4801 /* store the address of the source into local variable 0 */
4802 mono_mb_emit_stloc (mb, 0);
4803 /* allocate space for the native struct and
4804 * store the address into dst_ptr */
4805 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4806 m->retobj_class = klass;
4807 g_assert (m->retobj_var);
4808 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4809 mono_mb_emit_byte (mb, CEE_CONV_I);
4810 mono_mb_emit_icall (mb, mono_marshal_alloc);
4811 mono_mb_emit_stloc (mb, 1);
4812 mono_mb_emit_ldloc (mb, 1);
4813 mono_mb_emit_stloc (mb, m->retobj_var);
4815 /* emit valuetype conversion code */
4816 emit_struct_conv (mb, klass, FALSE);
4820 g_assert_not_reached ();
4827 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
4828 MonoMarshalSpec *spec,
4829 int conv_arg, MonoType **conv_arg_type,
4830 MarshalAction action)
4834 case MARSHAL_ACTION_CONV_IN:
4835 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4837 case MARSHAL_ACTION_MANAGED_CONV_IN:
4838 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4842 MonoMethodBuilder *mb = m->mb;
4843 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
4844 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
4848 case MARSHAL_ACTION_CONV_IN:
4849 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4850 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4853 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4856 mono_mb_emit_ldarg (mb, argnum);
4857 mono_mb_emit_byte (mb, CEE_LDIND_I);
4859 mono_mb_emit_ldarg (mb, argnum);
4863 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4864 mono_mb_emit_exception_marshal_directive (mb, msg);
4866 mono_mb_emit_icall (mb, conv_to_icall (conv));
4868 mono_mb_emit_stloc (mb, conv_arg);
4872 case MARSHAL_ACTION_CONV_OUT:
4873 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4875 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4876 mono_mb_emit_exception_marshal_directive (mb, msg);
4880 if (encoding == MONO_NATIVE_VBBYREFSTR) {
4881 static MonoMethod *m;
4884 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
4889 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
4890 mono_mb_emit_exception_marshal_directive (mb, msg);
4895 * Have to allocate a new string with the same length as the original, and
4896 * copy the contents of the buffer pointed to by CONV_ARG into it.
4898 g_assert (t->byref);
4899 mono_mb_emit_ldarg (mb, argnum);
4900 mono_mb_emit_ldloc (mb, conv_arg);
4901 mono_mb_emit_ldarg (mb, argnum);
4902 mono_mb_emit_byte (mb, CEE_LDIND_I);
4903 mono_mb_emit_managed_call (mb, m, NULL);
4904 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
4905 mono_mb_emit_byte (mb, CEE_STIND_REF);
4906 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
4907 mono_mb_emit_ldarg (mb, argnum);
4908 mono_mb_emit_ldloc (mb, conv_arg);
4909 mono_mb_emit_icall (mb, conv_to_icall (conv));
4910 mono_mb_emit_byte (mb, CEE_STIND_REF);
4915 mono_mb_emit_ldloc (mb, conv_arg);
4916 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
4917 mono_mb_emit_icall (mb, mono_free_bstr);
4919 mono_mb_emit_icall (mb, mono_marshal_free);
4923 case MARSHAL_ACTION_PUSH:
4924 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
4925 mono_mb_emit_ldloc_addr (mb, conv_arg);
4927 mono_mb_emit_ldloc (mb, conv_arg);
4930 case MARSHAL_ACTION_CONV_RESULT:
4931 mono_mb_emit_stloc (mb, 0);
4933 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4935 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4936 mono_mb_emit_exception_marshal_directive (mb, msg);
4940 mono_mb_emit_ldloc (mb, 0);
4941 mono_mb_emit_icall (mb, conv_to_icall (conv));
4942 mono_mb_emit_stloc (mb, 3);
4944 /* free the string */
4945 mono_mb_emit_ldloc (mb, 0);
4946 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
4947 mono_mb_emit_icall (mb, mono_free_bstr);
4949 mono_mb_emit_icall (mb, mono_marshal_free);
4952 case MARSHAL_ACTION_MANAGED_CONV_IN:
4953 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4955 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4958 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4962 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4964 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4965 mono_mb_emit_exception_marshal_directive (mb, msg);
4969 mono_mb_emit_ldarg (mb, argnum);
4971 mono_mb_emit_byte (mb, CEE_LDIND_I);
4972 mono_mb_emit_icall (mb, conv_to_icall (conv));
4973 mono_mb_emit_stloc (mb, conv_arg);
4976 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4979 mono_mb_emit_ldarg (mb, argnum);
4980 mono_mb_emit_ldloc (mb, conv_arg);
4981 mono_mb_emit_icall (mb, conv_to_icall (conv));
4982 mono_mb_emit_byte (mb, CEE_STIND_I);
4987 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4988 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
4989 /* We need to make a copy so the caller is able to free it */
4990 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
4992 mono_mb_emit_icall (mb, conv_to_icall (conv));
4993 mono_mb_emit_stloc (mb, 3);
4997 g_assert_not_reached ();
5005 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5006 MonoMarshalSpec *spec, int conv_arg,
5007 MonoType **conv_arg_type, MarshalAction action)
5010 if (action == MARSHAL_ACTION_CONV_IN)
5011 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5013 MonoMethodBuilder *mb = m->mb;
5016 case MARSHAL_ACTION_CONV_IN: {
5017 MonoType *intptr_type;
5018 int dar_release_slot, pos;
5020 intptr_type = &mono_defaults.int_class->byval_arg;
5021 conv_arg = mono_mb_add_local (mb, intptr_type);
5022 *conv_arg_type = intptr_type;
5024 if (!sh_dangerous_add_ref)
5025 init_safe_handle ();
5027 mono_mb_emit_ldarg (mb, argnum);
5028 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5029 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5031 mono_mb_patch_branch (mb, pos);
5034 * My tests in show that ref SafeHandles are not really
5035 * passed as ref objects. Instead a NULL is passed as the
5038 mono_mb_emit_icon (mb, 0);
5039 mono_mb_emit_stloc (mb, conv_arg);
5043 /* Create local to hold the ref parameter to DangerousAddRef */
5044 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5046 /* set release = false; */
5047 mono_mb_emit_icon (mb, 0);
5048 mono_mb_emit_stloc (mb, dar_release_slot);
5050 /* safehandle.DangerousAddRef (ref release) */
5051 mono_mb_emit_ldarg (mb, argnum);
5052 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5053 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5055 /* Pull the handle field from SafeHandle */
5056 mono_mb_emit_ldarg (mb, argnum);
5057 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5058 mono_mb_emit_byte (mb, CEE_LDIND_I);
5059 mono_mb_emit_stloc (mb, conv_arg);
5064 case MARSHAL_ACTION_PUSH:
5066 mono_mb_emit_ldloc_addr (mb, conv_arg);
5068 mono_mb_emit_ldloc (mb, conv_arg);
5071 case MARSHAL_ACTION_CONV_OUT: {
5072 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5073 int dar_release_slot = conv_arg + 1;
5076 if (!sh_dangerous_release)
5077 init_safe_handle ();
5083 * My tests indicate that ref SafeHandles parameters are not actually
5084 * passed by ref, but instead a new Handle is created regardless of
5085 * whether a change happens in the unmanaged side.
5087 * Also, the Handle is created before calling into unmanaged code,
5088 * but we do not support that mechanism (getting to the original
5089 * handle) and it makes no difference where we create this
5091 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5093 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5096 /* refval = new SafeHandleDerived ()*/
5097 mono_mb_emit_ldarg (mb, argnum);
5098 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5099 mono_mb_emit_byte (mb, CEE_STIND_REF);
5101 /* refval.handle = returned_handle */
5102 mono_mb_emit_ldarg (mb, argnum);
5103 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5104 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5105 mono_mb_emit_ldloc (mb, conv_arg);
5106 mono_mb_emit_byte (mb, CEE_STIND_I);
5108 mono_mb_emit_ldloc (mb, dar_release_slot);
5109 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5110 mono_mb_emit_ldarg (mb, argnum);
5111 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5112 mono_mb_patch_branch (mb, label_next);
5117 case MARSHAL_ACTION_CONV_RESULT: {
5118 MonoMethod *ctor = NULL;
5119 int intptr_handle_slot;
5121 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5122 mono_mb_emit_byte (mb, CEE_POP);
5123 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5127 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5129 mono_mb_emit_byte (mb, CEE_POP);
5130 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5133 /* Store the IntPtr results into a local */
5134 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5135 mono_mb_emit_stloc (mb, intptr_handle_slot);
5137 /* Create return value */
5138 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5139 mono_mb_emit_stloc (mb, 3);
5141 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5142 mono_mb_emit_ldloc (mb, 3);
5143 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5144 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5145 mono_mb_emit_byte (mb, CEE_STIND_I);
5149 case MARSHAL_ACTION_MANAGED_CONV_IN:
5150 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5153 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5154 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5157 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5158 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5161 printf ("Unhandled case for MarshalAction: %d\n", action);
5169 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5170 MonoMarshalSpec *spec, int conv_arg,
5171 MonoType **conv_arg_type, MarshalAction action)
5174 if (action == MARSHAL_ACTION_CONV_IN)
5175 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5177 MonoMethodBuilder *mb = m->mb;
5180 case MARSHAL_ACTION_CONV_IN: {
5181 MonoType *intptr_type;
5183 intptr_type = &mono_defaults.int_class->byval_arg;
5184 conv_arg = mono_mb_add_local (mb, intptr_type);
5185 *conv_arg_type = intptr_type;
5188 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5189 mono_mb_emit_exception_marshal_directive (mb, msg);
5192 mono_mb_emit_ldarg_addr (mb, argnum);
5193 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5194 mono_mb_emit_byte (mb, CEE_ADD);
5195 mono_mb_emit_byte (mb, CEE_LDIND_I);
5196 mono_mb_emit_stloc (mb, conv_arg);
5200 case MARSHAL_ACTION_PUSH:
5201 mono_mb_emit_ldloc (mb, conv_arg);
5204 case MARSHAL_ACTION_CONV_OUT: {
5205 /* no resource release required */
5209 case MARSHAL_ACTION_CONV_RESULT: {
5210 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5211 mono_mb_emit_exception_marshal_directive (mb, msg);
5215 case MARSHAL_ACTION_MANAGED_CONV_IN:
5216 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5219 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5220 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5223 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5224 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5227 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5235 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5236 MonoMarshalSpec *spec,
5237 int conv_arg, MonoType **conv_arg_type,
5238 MarshalAction action)
5241 if (action == MARSHAL_ACTION_CONV_IN)
5242 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5244 MonoMethodBuilder *mb = m->mb;
5245 MonoClass *klass = mono_class_from_mono_type (t);
5249 case MARSHAL_ACTION_CONV_IN:
5250 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5251 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5253 m->orig_conv_args [argnum] = 0;
5255 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5256 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5257 mono_mb_emit_exception_marshal_directive (mb, msg);
5261 if (klass->delegate) {
5263 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5264 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5265 mono_mb_emit_exception_marshal_directive (mb, msg);
5267 mono_mb_emit_byte (mb, CEE_LDNULL);
5268 mono_mb_emit_stloc (mb, conv_arg);
5270 mono_mb_emit_ldarg (mb, argnum);
5271 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5272 mono_mb_emit_stloc (mb, conv_arg);
5274 } else if (klass == mono_defaults.stringbuilder_class) {
5275 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5276 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5280 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5281 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5282 mono_mb_emit_exception_marshal_directive (mb, msg);
5288 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5292 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5293 mono_mb_emit_exception_marshal_directive (mb, msg);
5297 mono_mb_emit_ldarg (mb, argnum);
5299 mono_mb_emit_byte (mb, CEE_LDIND_I);
5301 mono_mb_emit_icall (mb, conv_to_icall (conv));
5302 mono_mb_emit_stloc (mb, conv_arg);
5303 } else if (klass->blittable) {
5304 mono_mb_emit_byte (mb, CEE_LDNULL);
5305 mono_mb_emit_stloc (mb, conv_arg);
5307 mono_mb_emit_ldarg (mb, argnum);
5308 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5310 mono_mb_emit_ldarg (mb, argnum);
5311 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5312 mono_mb_emit_stloc (mb, conv_arg);
5314 mono_mb_patch_branch (mb, pos);
5317 mono_mb_emit_byte (mb, CEE_LDNULL);
5318 mono_mb_emit_stloc (mb, conv_arg);
5321 /* we dont need any conversions for out parameters */
5322 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5325 mono_mb_emit_ldarg (mb, argnum);
5326 mono_mb_emit_byte (mb, CEE_LDIND_I);
5329 mono_mb_emit_ldarg (mb, argnum);
5330 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5331 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5334 /* store the address of the source into local variable 0 */
5335 mono_mb_emit_stloc (mb, 0);
5336 mono_mb_emit_ldloc (mb, 0);
5337 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5339 /* allocate space for the native struct and store the address */
5340 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5341 mono_mb_emit_byte (mb, CEE_PREFIX1);
5342 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5343 mono_mb_emit_stloc (mb, conv_arg);
5346 /* Need to store the original buffer so we can free it later */
5347 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5348 mono_mb_emit_ldloc (mb, conv_arg);
5349 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5352 /* set the src_ptr */
5353 mono_mb_emit_ldloc (mb, 0);
5354 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5355 mono_mb_emit_stloc (mb, 0);
5358 mono_mb_emit_ldloc (mb, conv_arg);
5359 mono_mb_emit_stloc (mb, 1);
5361 /* emit valuetype conversion code */
5362 emit_struct_conv (mb, klass, FALSE);
5364 mono_mb_patch_branch (mb, pos);
5368 case MARSHAL_ACTION_CONV_OUT:
5369 if (klass == mono_defaults.stringbuilder_class) {
5371 MonoMarshalNative encoding;
5372 MonoMarshalConv conv;
5374 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5375 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5377 g_assert (encoding != -1);
5380 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5384 mono_mb_emit_ldarg (mb, argnum);
5385 mono_mb_emit_ldloc (mb, conv_arg);
5388 case MONO_NATIVE_LPWSTR:
5389 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5391 case MONO_NATIVE_LPSTR:
5392 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5395 g_assert_not_reached ();
5398 mono_mb_emit_byte (mb, CEE_STIND_REF);
5400 mono_mb_emit_ldarg (mb, argnum);
5401 mono_mb_emit_ldloc (mb, conv_arg);
5403 mono_mb_emit_icall (mb, conv_to_icall (conv));
5407 mono_mb_emit_ldloc (mb, conv_arg);
5408 mono_mb_emit_icall (mb, mono_marshal_free);
5413 if (klass->delegate) {
5415 mono_mb_emit_ldarg (mb, argnum);
5416 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5417 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5418 mono_mb_emit_ldloc (mb, conv_arg);
5419 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5420 mono_mb_emit_byte (mb, CEE_STIND_REF);
5425 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5426 /* allocate a new object */
5427 mono_mb_emit_ldarg (mb, argnum);
5428 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5429 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5430 mono_mb_emit_byte (mb, CEE_STIND_REF);
5433 /* dst = *argument */
5434 mono_mb_emit_ldarg (mb, argnum);
5437 mono_mb_emit_byte (mb, CEE_LDIND_I);
5439 mono_mb_emit_stloc (mb, 1);
5441 mono_mb_emit_ldloc (mb, 1);
5442 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5444 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5445 mono_mb_emit_ldloc (mb, 1);
5446 mono_mb_emit_icon (mb, sizeof (MonoObject));
5447 mono_mb_emit_byte (mb, CEE_ADD);
5448 mono_mb_emit_stloc (mb, 1);
5450 /* src = tmp_locals [i] */
5451 mono_mb_emit_ldloc (mb, conv_arg);
5452 mono_mb_emit_stloc (mb, 0);
5454 /* emit valuetype conversion code */
5455 emit_struct_conv (mb, klass, TRUE);
5457 /* Free the structure returned by the native code */
5458 emit_struct_free (mb, klass, conv_arg);
5460 if (m->orig_conv_args [argnum]) {
5462 * If the native function changed the pointer, then free
5463 * the original structure plus the new pointer.
5465 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5466 mono_mb_emit_ldloc (mb, conv_arg);
5467 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5469 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5470 g_assert (m->orig_conv_args [argnum]);
5472 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5475 mono_mb_emit_ldloc (mb, conv_arg);
5476 mono_mb_emit_icall (mb, mono_marshal_free);
5478 mono_mb_patch_branch (mb, pos2);
5482 /* Free the original structure passed to native code */
5483 emit_struct_free (mb, klass, conv_arg);
5485 mono_mb_patch_branch (mb, pos);
5488 case MARSHAL_ACTION_PUSH:
5490 mono_mb_emit_ldloc_addr (mb, conv_arg);
5492 mono_mb_emit_ldloc (mb, conv_arg);
5495 case MARSHAL_ACTION_CONV_RESULT:
5496 if (klass->delegate) {
5497 g_assert (!t->byref);
5498 mono_mb_emit_stloc (mb, 0);
5499 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5500 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5501 mono_mb_emit_ldloc (mb, 0);
5502 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5503 mono_mb_emit_stloc (mb, 3);
5506 mono_mb_emit_stloc (mb, 0);
5508 /* Make a copy since emit_conv modifies local 0 */
5509 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5510 mono_mb_emit_ldloc (mb, 0);
5511 mono_mb_emit_stloc (mb, loc);
5513 mono_mb_emit_byte (mb, CEE_LDNULL);
5514 mono_mb_emit_stloc (mb, 3);
5516 mono_mb_emit_ldloc (mb, 0);
5517 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5519 /* allocate result object */
5521 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5522 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5523 mono_mb_emit_stloc (mb, 3);
5527 mono_mb_emit_ldloc (mb, 3);
5528 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5529 mono_mb_emit_stloc (mb, 1);
5531 /* emit conversion code */
5532 emit_struct_conv (mb, klass, TRUE);
5534 emit_struct_free (mb, klass, loc);
5536 /* Free the pointer allocated by unmanaged code */
5537 mono_mb_emit_ldloc (mb, loc);
5538 mono_mb_emit_icall (mb, mono_marshal_free);
5539 mono_mb_patch_branch (mb, pos);
5543 case MARSHAL_ACTION_MANAGED_CONV_IN:
5544 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5546 if (klass->delegate) {
5547 g_assert (!t->byref);
5548 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5549 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5550 mono_mb_emit_ldarg (mb, argnum);
5551 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5552 mono_mb_emit_stloc (mb, conv_arg);
5556 if (klass == mono_defaults.stringbuilder_class) {
5557 MonoMarshalNative encoding;
5559 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5562 g_assert (encoding == MONO_NATIVE_LPSTR);
5564 g_assert (!t->byref);
5565 g_assert (encoding != -1);
5567 mono_mb_emit_ldarg (mb, argnum);
5568 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5569 mono_mb_emit_stloc (mb, conv_arg);
5573 /* The class can not have an automatic layout */
5574 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5575 mono_mb_emit_auto_layout_exception (mb, klass);
5579 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5580 mono_mb_emit_byte (mb, CEE_LDNULL);
5581 mono_mb_emit_stloc (mb, conv_arg);
5586 mono_mb_emit_ldarg (mb, argnum);
5590 /* Check for NULL and raise an exception */
5591 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5593 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5595 mono_mb_patch_branch (mb, pos2);
5596 mono_mb_emit_ldarg (mb, argnum);
5597 mono_mb_emit_byte (mb, CEE_LDIND_I);
5600 mono_mb_emit_stloc (mb, 0);
5602 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5603 mono_mb_emit_stloc (mb, conv_arg);
5605 mono_mb_emit_ldloc (mb, 0);
5606 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5608 /* Create and set dst */
5609 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5610 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5611 mono_mb_emit_stloc (mb, conv_arg);
5612 mono_mb_emit_ldloc (mb, conv_arg);
5613 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5614 mono_mb_emit_stloc (mb, 1);
5616 /* emit valuetype conversion code */
5617 emit_struct_conv (mb, klass, TRUE);
5619 mono_mb_patch_branch (mb, pos);
5622 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5624 /* Check for null */
5625 mono_mb_emit_ldloc (mb, conv_arg);
5626 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5627 mono_mb_emit_ldarg (mb, argnum);
5628 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5629 mono_mb_emit_byte (mb, CEE_STIND_REF);
5630 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5632 mono_mb_patch_branch (mb, pos);
5635 mono_mb_emit_ldloc (mb, conv_arg);
5636 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5637 mono_mb_emit_stloc (mb, 0);
5639 /* Allocate and set dest */
5640 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5641 mono_mb_emit_byte (mb, CEE_CONV_I);
5642 mono_mb_emit_icall (mb, mono_marshal_alloc);
5643 mono_mb_emit_stloc (mb, 1);
5645 /* Update argument pointer */
5646 mono_mb_emit_ldarg (mb, argnum);
5647 mono_mb_emit_ldloc (mb, 1);
5648 mono_mb_emit_byte (mb, CEE_STIND_I);
5650 /* emit valuetype conversion code */
5651 emit_struct_conv (mb, klass, FALSE);
5653 mono_mb_patch_branch (mb, pos2);
5654 } else if (klass == mono_defaults.stringbuilder_class) {
5655 // FIXME: What to do here ?
5657 /* byval [Out] marshalling */
5659 /* FIXME: Handle null */
5662 mono_mb_emit_ldloc (mb, conv_arg);
5663 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5664 mono_mb_emit_stloc (mb, 0);
5667 mono_mb_emit_ldarg (mb, argnum);
5668 mono_mb_emit_stloc (mb, 1);
5670 /* emit valuetype conversion code */
5671 emit_struct_conv (mb, klass, FALSE);
5675 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5676 if (klass->delegate) {
5677 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5678 mono_mb_emit_stloc (mb, 3);
5682 /* The class can not have an automatic layout */
5683 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5684 mono_mb_emit_auto_layout_exception (mb, klass);
5688 mono_mb_emit_stloc (mb, 0);
5689 /* Check for null */
5690 mono_mb_emit_ldloc (mb, 0);
5691 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5692 mono_mb_emit_byte (mb, CEE_LDNULL);
5693 mono_mb_emit_stloc (mb, 3);
5694 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5696 mono_mb_patch_branch (mb, pos);
5699 mono_mb_emit_ldloc (mb, 0);
5700 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5701 mono_mb_emit_stloc (mb, 0);
5703 /* Allocate and set dest */
5704 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5705 mono_mb_emit_byte (mb, CEE_CONV_I);
5706 mono_mb_emit_icall (mb, mono_marshal_alloc);
5707 mono_mb_emit_byte (mb, CEE_DUP);
5708 mono_mb_emit_stloc (mb, 1);
5709 mono_mb_emit_stloc (mb, 3);
5711 emit_struct_conv (mb, klass, FALSE);
5713 mono_mb_patch_branch (mb, pos2);
5717 g_assert_not_reached ();
5728 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
5729 MonoMarshalSpec *spec,
5730 int conv_arg, MonoType **conv_arg_type,
5731 MarshalAction action)
5733 MonoMethodBuilder *mb = m->mb;
5734 static MonoMethod *get_object_for_native_variant = NULL;
5735 static MonoMethod *get_native_variant_for_object = NULL;
5737 if (!get_object_for_native_variant)
5738 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
5739 g_assert (get_object_for_native_variant);
5741 if (!get_native_variant_for_object)
5742 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
5743 g_assert (get_native_variant_for_object);
5746 case MARSHAL_ACTION_CONV_IN: {
5747 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
5750 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5752 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5754 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5757 mono_mb_emit_ldarg (mb, argnum);
5759 mono_mb_emit_byte(mb, CEE_LDIND_REF);
5760 mono_mb_emit_ldloc_addr (mb, conv_arg);
5761 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5765 case MARSHAL_ACTION_CONV_OUT: {
5766 static MonoMethod *variant_clear = NULL;
5769 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
5770 g_assert (variant_clear);
5773 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5774 mono_mb_emit_ldarg (mb, argnum);
5775 mono_mb_emit_ldloc_addr (mb, conv_arg);
5776 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5777 mono_mb_emit_byte (mb, CEE_STIND_REF);
5780 mono_mb_emit_ldloc_addr (mb, conv_arg);
5781 mono_mb_emit_managed_call (mb, variant_clear, NULL);
5785 case MARSHAL_ACTION_PUSH:
5787 mono_mb_emit_ldloc_addr (mb, conv_arg);
5789 mono_mb_emit_ldloc (mb, conv_arg);
5792 case MARSHAL_ACTION_CONV_RESULT: {
5793 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5794 mono_mb_emit_exception_marshal_directive (mb, msg);
5798 case MARSHAL_ACTION_MANAGED_CONV_IN: {
5799 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5802 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5804 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5806 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5810 mono_mb_emit_ldarg (mb, argnum);
5812 mono_mb_emit_ldarg_addr (mb, argnum);
5813 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5814 mono_mb_emit_stloc (mb, conv_arg);
5818 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
5819 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5820 mono_mb_emit_ldloc (mb, conv_arg);
5821 mono_mb_emit_ldarg (mb, argnum);
5822 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5827 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
5828 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5829 mono_mb_emit_exception_marshal_directive (mb, msg);
5834 g_assert_not_reached ();
5840 #endif /* DISABLE_COM */
5841 #endif /* DISABLE_JIT */
5844 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
5846 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
5847 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
5849 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
5851 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
5863 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
5864 MonoMarshalSpec *spec,
5865 int conv_arg, MonoType **conv_arg_type,
5866 MarshalAction action)
5870 case MARSHAL_ACTION_CONV_IN:
5871 *conv_arg_type = &mono_defaults.object_class->byval_arg;
5873 case MARSHAL_ACTION_MANAGED_CONV_IN:
5874 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5878 MonoMethodBuilder *mb = m->mb;
5879 MonoClass *klass = mono_class_from_mono_type (t);
5880 gboolean need_convert, need_free;
5881 MonoMarshalNative encoding;
5883 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5886 case MARSHAL_ACTION_CONV_IN:
5887 *conv_arg_type = &mono_defaults.object_class->byval_arg;
5888 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5890 if (klass->element_class->blittable) {
5891 mono_mb_emit_ldarg (mb, argnum);
5893 mono_mb_emit_byte (mb, CEE_LDIND_I);
5894 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
5895 mono_mb_emit_stloc (mb, conv_arg);
5898 guint32 label1, label2, label3;
5899 int index_var, src_var, dest_ptr, esize;
5900 MonoMarshalConv conv;
5901 gboolean is_string = FALSE;
5903 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5905 eklass = klass->element_class;
5907 if (eklass == mono_defaults.string_class) {
5909 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5911 else if (eklass == mono_defaults.stringbuilder_class) {
5913 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5918 if (is_string && conv == -1) {
5919 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
5920 mono_mb_emit_exception_marshal_directive (mb, msg);
5924 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5925 mono_mb_emit_ldarg (mb, argnum);
5927 mono_mb_emit_byte (mb, CEE_LDIND_I);
5928 mono_mb_emit_stloc (mb, src_var);
5931 mono_mb_emit_ldloc (mb, src_var);
5932 mono_mb_emit_stloc (mb, conv_arg);
5933 mono_mb_emit_ldloc (mb, src_var);
5934 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5937 esize = sizeof (gpointer);
5938 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
5939 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
5941 esize = mono_class_native_size (eklass, NULL);
5943 /* allocate space for the native struct and store the address */
5944 mono_mb_emit_icon (mb, esize);
5945 mono_mb_emit_ldloc (mb, src_var);
5946 mono_mb_emit_byte (mb, CEE_LDLEN);
5948 if (eklass == mono_defaults.string_class) {
5949 /* Make the array bigger for the terminating null */
5950 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
5951 mono_mb_emit_byte (mb, CEE_ADD);
5953 mono_mb_emit_byte (mb, CEE_MUL);
5954 mono_mb_emit_byte (mb, CEE_PREFIX1);
5955 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5956 mono_mb_emit_stloc (mb, conv_arg);
5958 mono_mb_emit_ldloc (mb, conv_arg);
5959 mono_mb_emit_stloc (mb, dest_ptr);
5961 /* Emit marshalling loop */
5962 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5963 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5964 mono_mb_emit_stloc (mb, index_var);
5965 label2 = mono_mb_get_label (mb);
5966 mono_mb_emit_ldloc (mb, index_var);
5967 mono_mb_emit_ldloc (mb, src_var);
5968 mono_mb_emit_byte (mb, CEE_LDLEN);
5969 label3 = mono_mb_emit_branch (mb, CEE_BGE);
5971 /* Emit marshalling code */
5974 mono_mb_emit_ldloc (mb, dest_ptr);
5975 mono_mb_emit_ldloc (mb, src_var);
5976 mono_mb_emit_ldloc (mb, index_var);
5977 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
5978 mono_mb_emit_icall (mb, conv_to_icall (conv));
5979 mono_mb_emit_byte (mb, CEE_STIND_I);
5981 /* set the src_ptr */
5982 mono_mb_emit_ldloc (mb, src_var);
5983 mono_mb_emit_ldloc (mb, index_var);
5984 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
5985 mono_mb_emit_stloc (mb, 0);
5988 mono_mb_emit_ldloc (mb, dest_ptr);
5989 mono_mb_emit_stloc (mb, 1);
5991 /* emit valuetype conversion code */
5992 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : -1);
5995 mono_mb_emit_add_to_local (mb, index_var, 1);
5996 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
5998 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6000 mono_mb_patch_branch (mb, label3);
6002 if (eklass == mono_defaults.string_class) {
6003 /* Null terminate */
6004 mono_mb_emit_ldloc (mb, dest_ptr);
6005 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6006 mono_mb_emit_byte (mb, CEE_STIND_REF);
6009 mono_mb_patch_branch (mb, label1);
6014 case MARSHAL_ACTION_CONV_OUT:
6015 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6016 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);
6017 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6020 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6021 int param_num = spec->data.array_data.param_num;
6022 MonoType *param_type;
6024 param_type = m->sig->params [param_num];
6026 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6027 char *msg = g_strdup ("Not implemented.");
6028 mono_mb_emit_exception_marshal_directive (mb, msg);
6032 mono_mb_emit_ldarg (mb, argnum);
6034 /* Create the managed array */
6035 mono_mb_emit_ldarg (mb, param_num);
6036 if (m->sig->params [param_num]->byref)
6037 // FIXME: Support other types
6038 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6039 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6040 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6041 /* Store into argument */
6042 mono_mb_emit_byte (mb, CEE_STIND_I);
6045 if (need_convert || need_free) {
6046 /* FIXME: Optimize blittable case */
6048 guint32 label1, label2, label3;
6049 int index_var, src_ptr, loc, esize;
6051 eklass = klass->element_class;
6052 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6053 esize = sizeof (gpointer);
6054 else if (eklass == mono_defaults.char_class)
6055 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6057 esize = mono_class_native_size (eklass, NULL);
6058 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6059 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6062 mono_mb_emit_ldarg (mb, argnum);
6064 mono_mb_emit_byte (mb, CEE_LDIND_I);
6065 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6067 mono_mb_emit_ldloc (mb, conv_arg);
6068 mono_mb_emit_stloc (mb, src_ptr);
6070 /* Emit marshalling loop */
6071 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6072 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6073 mono_mb_emit_stloc (mb, index_var);
6074 label2 = mono_mb_get_label (mb);
6075 mono_mb_emit_ldloc (mb, index_var);
6076 mono_mb_emit_ldarg (mb, argnum);
6078 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6079 mono_mb_emit_byte (mb, CEE_LDLEN);
6080 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6082 /* Emit marshalling code */
6084 if (eklass == mono_defaults.stringbuilder_class) {
6085 gboolean need_free2;
6086 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6088 g_assert (conv != -1);
6091 mono_mb_emit_ldarg (mb, argnum);
6093 mono_mb_emit_byte (mb, CEE_LDIND_I);
6094 mono_mb_emit_ldloc (mb, index_var);
6095 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6098 mono_mb_emit_ldloc (mb, src_ptr);
6099 mono_mb_emit_byte (mb, CEE_LDIND_I);
6101 mono_mb_emit_icall (mb, conv_to_icall (conv));
6105 mono_mb_emit_ldloc (mb, src_ptr);
6106 mono_mb_emit_byte (mb, CEE_LDIND_I);
6108 mono_mb_emit_icall (mb, mono_marshal_free);
6111 else if (eklass == mono_defaults.string_class) {
6114 mono_mb_emit_ldloc (mb, src_ptr);
6115 mono_mb_emit_byte (mb, CEE_LDIND_I);
6117 mono_mb_emit_icall (mb, mono_marshal_free);
6122 /* set the src_ptr */
6123 mono_mb_emit_ldloc (mb, src_ptr);
6124 mono_mb_emit_stloc (mb, 0);
6127 mono_mb_emit_ldarg (mb, argnum);
6129 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6130 mono_mb_emit_ldloc (mb, index_var);
6131 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6132 mono_mb_emit_stloc (mb, 1);
6134 /* emit valuetype conversion code */
6135 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : -1);
6139 mono_mb_emit_ldloc (mb, src_ptr);
6140 mono_mb_emit_stloc (mb, loc);
6141 mono_mb_emit_ldloc (mb, loc);
6143 emit_struct_free (mb, eklass, loc);
6147 mono_mb_emit_add_to_local (mb, index_var, 1);
6148 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6150 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6152 mono_mb_patch_branch (mb, label1);
6153 mono_mb_patch_branch (mb, label3);
6156 if (klass->element_class->blittable) {
6157 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6159 mono_mb_emit_ldarg (mb, argnum);
6161 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6162 mono_mb_emit_ldloc (mb, conv_arg);
6163 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
6168 case MARSHAL_ACTION_PUSH:
6170 mono_mb_emit_ldloc_addr (mb, conv_arg);
6172 mono_mb_emit_ldloc (mb, conv_arg);
6175 case MARSHAL_ACTION_CONV_RESULT:
6176 /* fixme: we need conversions here */
6177 mono_mb_emit_stloc (mb, 3);
6180 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6182 guint32 label1, label2, label3;
6183 int index_var, src_ptr, esize, param_num, num_elem;
6184 MonoMarshalConv conv;
6185 gboolean is_string = FALSE;
6187 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6188 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6191 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6192 mono_mb_emit_exception_marshal_directive (mb, msg);
6196 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6197 mono_mb_emit_exception_marshal_directive (mb, msg);
6200 if (spec->native != MONO_NATIVE_LPARRAY) {
6201 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6202 mono_mb_emit_exception_marshal_directive (mb, msg);
6206 /* FIXME: t is from the method which is wrapped, not the delegate type */
6207 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6209 param_num = spec->data.array_data.param_num;
6210 num_elem = spec->data.array_data.num_elem;
6211 if (spec->data.array_data.elem_mult == 0)
6212 /* param_num is not specified */
6215 if (param_num == -1) {
6216 if (num_elem <= 0) {
6217 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6218 mono_mb_emit_exception_marshal_directive (mb, msg);
6223 /* FIXME: Optimize blittable case */
6225 eklass = klass->element_class;
6226 if (eklass == mono_defaults.string_class) {
6228 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6230 else if (eklass == mono_defaults.stringbuilder_class) {
6232 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6237 mono_marshal_load_type_info (eklass);
6240 esize = sizeof (gpointer);
6242 esize = mono_class_native_size (eklass, NULL);
6243 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6245 mono_mb_emit_byte (mb, CEE_LDNULL);
6246 mono_mb_emit_stloc (mb, conv_arg);
6248 /* Check param index */
6249 if (param_num != -1) {
6250 if (param_num >= m->sig->param_count) {
6251 char *msg = g_strdup ("Array size control parameter index is out of range.");
6252 mono_mb_emit_exception_marshal_directive (mb, msg);
6255 switch (m->sig->params [param_num]->type) {
6268 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6269 mono_mb_emit_exception_marshal_directive (mb, msg);
6276 mono_mb_emit_ldarg (mb, argnum);
6277 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6279 mono_mb_emit_ldarg (mb, argnum);
6280 mono_mb_emit_stloc (mb, src_ptr);
6282 /* Create managed array */
6284 * The LPArray marshalling spec says that sometimes param_num starts
6285 * from 1, sometimes it starts from 0. But MS seems to allways start
6289 if (param_num == -1) {
6290 mono_mb_emit_icon (mb, num_elem);
6292 mono_mb_emit_ldarg (mb, param_num);
6294 mono_mb_emit_icon (mb, num_elem);
6295 mono_mb_emit_byte (mb, CEE_ADD);
6297 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6300 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6301 mono_mb_emit_stloc (mb, conv_arg);
6303 if (eklass->blittable) {
6304 mono_mb_emit_ldloc (mb, conv_arg);
6305 mono_mb_emit_byte (mb, CEE_CONV_I);
6306 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6307 mono_mb_emit_byte (mb, CEE_ADD);
6308 mono_mb_emit_ldarg (mb, argnum);
6309 mono_mb_emit_ldloc (mb, conv_arg);
6310 mono_mb_emit_byte (mb, CEE_LDLEN);
6311 mono_mb_emit_icon (mb, esize);
6312 mono_mb_emit_byte (mb, CEE_MUL);
6313 mono_mb_emit_byte (mb, CEE_PREFIX1);
6314 mono_mb_emit_byte (mb, CEE_CPBLK);
6318 /* Emit marshalling loop */
6319 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6320 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6321 mono_mb_emit_stloc (mb, index_var);
6322 label2 = mono_mb_get_label (mb);
6323 mono_mb_emit_ldloc (mb, index_var);
6324 mono_mb_emit_ldloc (mb, conv_arg);
6325 mono_mb_emit_byte (mb, CEE_LDLEN);
6326 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6328 /* Emit marshalling code */
6330 g_assert (conv != -1);
6332 mono_mb_emit_ldloc (mb, conv_arg);
6333 mono_mb_emit_ldloc (mb, index_var);
6335 mono_mb_emit_ldloc (mb, src_ptr);
6336 mono_mb_emit_byte (mb, CEE_LDIND_I);
6338 mono_mb_emit_icall (mb, conv_to_icall (conv));
6339 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6342 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6343 mono_mb_emit_exception_marshal_directive (mb, msg);
6347 mono_mb_emit_add_to_local (mb, index_var, 1);
6348 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6350 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6352 mono_mb_patch_branch (mb, label1);
6353 mono_mb_patch_branch (mb, label3);
6357 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6359 guint32 label1, label2, label3;
6360 int index_var, dest_ptr, esize, param_num, num_elem;
6361 MonoMarshalConv conv;
6362 gboolean is_string = FALSE;
6365 /* Already handled in CONV_IN */
6368 /* These are already checked in CONV_IN */
6369 g_assert (!t->byref);
6370 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6371 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6373 param_num = spec->data.array_data.param_num;
6374 num_elem = spec->data.array_data.num_elem;
6376 if (spec->data.array_data.elem_mult == 0)
6377 /* param_num is not specified */
6380 if (param_num == -1) {
6381 if (num_elem <= 0) {
6382 g_assert_not_reached ();
6386 /* FIXME: Optimize blittable case */
6388 eklass = klass->element_class;
6389 if (eklass == mono_defaults.string_class) {
6391 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6393 else if (eklass == mono_defaults.stringbuilder_class) {
6395 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6400 mono_marshal_load_type_info (eklass);
6403 esize = sizeof (gpointer);
6405 esize = mono_class_native_size (eklass, NULL);
6407 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6410 mono_mb_emit_ldloc (mb, conv_arg);
6411 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6413 mono_mb_emit_ldarg (mb, argnum);
6414 mono_mb_emit_stloc (mb, dest_ptr);
6416 if (eklass->blittable) {
6418 mono_mb_emit_ldarg (mb, argnum);
6420 mono_mb_emit_ldloc (mb, conv_arg);
6421 mono_mb_emit_byte (mb, CEE_CONV_I);
6422 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6423 mono_mb_emit_byte (mb, CEE_ADD);
6425 mono_mb_emit_ldloc (mb, conv_arg);
6426 mono_mb_emit_byte (mb, CEE_LDLEN);
6427 mono_mb_emit_icon (mb, esize);
6428 mono_mb_emit_byte (mb, CEE_MUL);
6429 mono_mb_emit_byte (mb, CEE_PREFIX1);
6430 mono_mb_emit_byte (mb, CEE_CPBLK);
6434 /* Emit marshalling loop */
6435 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6436 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6437 mono_mb_emit_stloc (mb, index_var);
6438 label2 = mono_mb_get_label (mb);
6439 mono_mb_emit_ldloc (mb, index_var);
6440 mono_mb_emit_ldloc (mb, conv_arg);
6441 mono_mb_emit_byte (mb, CEE_LDLEN);
6442 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6444 /* Emit marshalling code */
6446 g_assert (conv != -1);
6449 mono_mb_emit_ldloc (mb, dest_ptr);
6452 mono_mb_emit_ldloc (mb, conv_arg);
6453 mono_mb_emit_ldloc (mb, index_var);
6455 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6457 mono_mb_emit_icall (mb, conv_to_icall (conv));
6458 mono_mb_emit_byte (mb, CEE_STIND_I);
6461 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6462 mono_mb_emit_exception_marshal_directive (mb, msg);
6466 mono_mb_emit_add_to_local (mb, index_var, 1);
6467 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6469 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6471 mono_mb_patch_branch (mb, label1);
6472 mono_mb_patch_branch (mb, label3);
6476 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6478 guint32 label1, label2, label3;
6479 int index_var, src, dest, esize;
6480 MonoMarshalConv conv = -1;
6481 gboolean is_string = FALSE;
6483 g_assert (!t->byref);
6485 eklass = klass->element_class;
6487 mono_marshal_load_type_info (eklass);
6489 if (eklass == mono_defaults.string_class) {
6491 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6494 g_assert_not_reached ();
6498 esize = sizeof (gpointer);
6499 else if (eklass == mono_defaults.char_class)
6500 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6502 esize = mono_class_native_size (eklass, NULL);
6504 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6505 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6507 mono_mb_emit_stloc (mb, src);
6508 mono_mb_emit_ldloc (mb, src);
6509 mono_mb_emit_stloc (mb, 3);
6511 /* Check for null */
6512 mono_mb_emit_ldloc (mb, src);
6513 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6515 /* Allocate native array */
6516 mono_mb_emit_icon (mb, esize);
6517 mono_mb_emit_ldloc (mb, src);
6518 mono_mb_emit_byte (mb, CEE_LDLEN);
6520 if (eklass == mono_defaults.string_class) {
6521 /* Make the array bigger for the terminating null */
6522 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6523 mono_mb_emit_byte (mb, CEE_ADD);
6525 mono_mb_emit_byte (mb, CEE_MUL);
6526 mono_mb_emit_icall (mb, mono_marshal_alloc);
6527 mono_mb_emit_stloc (mb, dest);
6528 mono_mb_emit_ldloc (mb, dest);
6529 mono_mb_emit_stloc (mb, 3);
6531 /* Emit marshalling loop */
6532 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6533 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6534 mono_mb_emit_stloc (mb, index_var);
6535 label2 = mono_mb_get_label (mb);
6536 mono_mb_emit_ldloc (mb, index_var);
6537 mono_mb_emit_ldloc (mb, src);
6538 mono_mb_emit_byte (mb, CEE_LDLEN);
6539 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6541 /* Emit marshalling code */
6543 g_assert (conv != -1);
6546 mono_mb_emit_ldloc (mb, dest);
6549 mono_mb_emit_ldloc (mb, src);
6550 mono_mb_emit_ldloc (mb, index_var);
6552 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6554 mono_mb_emit_icall (mb, conv_to_icall (conv));
6555 mono_mb_emit_byte (mb, CEE_STIND_I);
6558 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6559 mono_mb_emit_exception_marshal_directive (mb, msg);
6563 mono_mb_emit_add_to_local (mb, index_var, 1);
6564 mono_mb_emit_add_to_local (mb, dest, esize);
6566 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6568 mono_mb_patch_branch (mb, label3);
6569 mono_mb_patch_branch (mb, label1);
6573 g_assert_not_reached ();
6580 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6583 return &mono_defaults.int32_class->byval_arg;
6585 switch (spec->native) {
6586 case MONO_NATIVE_I1:
6587 case MONO_NATIVE_U1:
6588 return &mono_defaults.byte_class->byval_arg;
6589 case MONO_NATIVE_VARIANTBOOL:
6590 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6591 return &mono_defaults.int16_class->byval_arg;
6592 case MONO_NATIVE_BOOLEAN:
6593 return &mono_defaults.int32_class->byval_arg;
6595 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6596 return &mono_defaults.int32_class->byval_arg;
6602 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6604 MonoClass* conv_arg_class = mono_defaults.int32_class;
6606 switch (spec->native) {
6607 case MONO_NATIVE_I1:
6608 case MONO_NATIVE_U1:
6609 conv_arg_class = mono_defaults.byte_class;
6610 if (ldop) *ldop = CEE_LDIND_I1;
6612 case MONO_NATIVE_VARIANTBOOL:
6613 conv_arg_class = mono_defaults.int16_class;
6614 if (ldop) *ldop = CEE_LDIND_I2;
6616 case MONO_NATIVE_BOOLEAN:
6619 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6622 return conv_arg_class;
6626 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6627 MonoMarshalSpec *spec,
6628 int conv_arg, MonoType **conv_arg_type,
6629 MarshalAction action)
6633 case MARSHAL_ACTION_CONV_IN:
6635 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6637 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6640 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6641 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6643 *conv_arg_type = &conv_arg_class->this_arg;
6645 *conv_arg_type = &conv_arg_class->byval_arg;
6651 MonoMethodBuilder *mb = m->mb;
6654 case MARSHAL_ACTION_CONV_IN: {
6655 MonoType *local_type;
6657 guint8 ldc_op = CEE_LDC_I4_1;
6659 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6661 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6663 *conv_arg_type = local_type;
6664 conv_arg = mono_mb_add_local (mb, local_type);
6666 mono_mb_emit_ldarg (mb, argnum);
6668 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6669 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6670 mono_mb_emit_byte (mb, ldc_op);
6671 mono_mb_emit_stloc (mb, conv_arg);
6672 mono_mb_patch_branch (mb, label_false);
6677 case MARSHAL_ACTION_CONV_OUT:
6679 int label_false, label_end;
6683 mono_mb_emit_ldarg (mb, argnum);
6684 mono_mb_emit_ldloc (mb, conv_arg);
6686 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6687 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6689 label_end = mono_mb_emit_branch (mb, CEE_BR);
6690 mono_mb_patch_branch (mb, label_false);
6691 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6692 mono_mb_patch_branch (mb, label_end);
6694 mono_mb_emit_byte (mb, CEE_STIND_I1);
6698 case MARSHAL_ACTION_PUSH:
6700 mono_mb_emit_ldloc_addr (mb, conv_arg);
6702 mono_mb_emit_ldloc (mb, conv_arg);
6704 mono_mb_emit_ldarg (mb, argnum);
6707 case MARSHAL_ACTION_CONV_RESULT:
6708 /* maybe we need to make sure that it fits within 8 bits */
6709 mono_mb_emit_stloc (mb, 3);
6712 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6713 MonoClass* conv_arg_class = mono_defaults.int32_class;
6714 guint8 ldop = CEE_LDIND_I4;
6715 int label_null, label_false;
6717 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
6718 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6721 *conv_arg_type = &conv_arg_class->this_arg;
6723 *conv_arg_type = &conv_arg_class->byval_arg;
6726 mono_mb_emit_ldarg (mb, argnum);
6730 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6731 mono_mb_emit_ldarg (mb, argnum);
6732 mono_mb_emit_byte (mb, ldop);
6736 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6737 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6738 mono_mb_emit_stloc (mb, conv_arg);
6739 mono_mb_patch_branch (mb, label_false);
6742 mono_mb_patch_branch (mb, label_null);
6746 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6747 guint8 stop = CEE_STIND_I4;
6748 guint8 ldc_op = CEE_LDC_I4_1;
6749 int label_null,label_false, label_end;;
6754 switch (spec->native) {
6755 case MONO_NATIVE_I1:
6756 case MONO_NATIVE_U1:
6757 stop = CEE_STIND_I1;
6759 case MONO_NATIVE_VARIANTBOOL:
6760 stop = CEE_STIND_I2;
6761 ldc_op = CEE_LDC_I4_M1;
6769 mono_mb_emit_ldarg (mb, argnum);
6770 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6772 mono_mb_emit_ldarg (mb, argnum);
6773 mono_mb_emit_ldloc (mb, conv_arg);
6775 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6776 mono_mb_emit_byte (mb, ldc_op);
6777 label_end = mono_mb_emit_branch (mb, CEE_BR);
6779 mono_mb_patch_branch (mb, label_false);
6780 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6781 mono_mb_patch_branch (mb, label_end);
6783 mono_mb_emit_byte (mb, stop);
6784 mono_mb_patch_branch (mb, label_null);
6789 g_assert_not_reached ();
6796 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
6797 MonoMarshalSpec *spec, int conv_arg,
6798 MonoType **conv_arg_type, MarshalAction action)
6801 MonoMethodBuilder *mb = m->mb;
6804 case MARSHAL_ACTION_CONV_IN:
6805 /* MS seems to allow this in some cases, ie. bxc #158 */
6807 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
6808 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
6809 mono_mb_emit_exception_marshal_directive (m->mb, msg);
6814 case MARSHAL_ACTION_PUSH:
6815 mono_mb_emit_ldarg (mb, argnum);
6818 case MARSHAL_ACTION_CONV_RESULT:
6819 /* no conversions necessary */
6820 mono_mb_emit_stloc (mb, 3);
6831 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
6832 MonoMarshalSpec *spec, int conv_arg,
6833 MonoType **conv_arg_type, MarshalAction action)
6836 MonoMethodBuilder *mb = m->mb;
6839 case MARSHAL_ACTION_PUSH:
6840 /* fixme: dont know how to marshal that. We cant simply
6841 * convert it to a one byte UTF8 character, because an
6842 * unicode character may need more that one byte in UTF8 */
6843 mono_mb_emit_ldarg (mb, argnum);
6846 case MARSHAL_ACTION_CONV_RESULT:
6847 /* fixme: we need conversions here */
6848 mono_mb_emit_stloc (mb, 3);
6859 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
6860 MonoMarshalSpec *spec, int conv_arg,
6861 MonoType **conv_arg_type, MarshalAction action)
6864 MonoMethodBuilder *mb = m->mb;
6867 case MARSHAL_ACTION_PUSH:
6868 mono_mb_emit_ldarg (mb, argnum);
6871 case MARSHAL_ACTION_CONV_RESULT:
6872 /* no conversions necessary */
6873 mono_mb_emit_stloc (mb, 3);
6884 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
6885 MonoMarshalSpec *spec, int conv_arg,
6886 MonoType **conv_arg_type, MarshalAction action)
6888 /* Ensure that we have marshalling info for this param */
6889 mono_marshal_load_type_info (mono_class_from_mono_type (t));
6891 if (spec && spec->native == MONO_NATIVE_CUSTOM)
6892 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6894 if (spec && spec->native == MONO_NATIVE_ASANY)
6895 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6898 case MONO_TYPE_VALUETYPE:
6899 if (t->data.klass == mono_defaults.handleref_class)
6900 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6902 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6903 case MONO_TYPE_STRING:
6904 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6905 case MONO_TYPE_CLASS:
6906 case MONO_TYPE_OBJECT:
6908 if (spec && spec->native == MONO_NATIVE_STRUCT)
6909 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6911 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
6912 spec->native == MONO_NATIVE_IDISPATCH ||
6913 spec->native == MONO_NATIVE_INTERFACE))
6914 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6915 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
6916 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
6917 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
6918 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6921 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
6922 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
6923 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6925 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6926 case MONO_TYPE_ARRAY:
6927 case MONO_TYPE_SZARRAY:
6928 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6929 case MONO_TYPE_BOOLEAN:
6930 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6932 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6933 case MONO_TYPE_CHAR:
6934 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6947 case MONO_TYPE_FNPTR:
6948 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6949 case MONO_TYPE_GENERICINST:
6950 if (mono_type_generic_inst_is_valuetype (t))
6951 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6953 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
6961 * mono_marshal_emit_native_wrapper:
6962 * @image: the image to use for looking up custom marshallers
6963 * @sig: The signature of the native function
6964 * @piinfo: Marshalling information
6965 * @mspecs: Marshalling information
6966 * @aot: whenever the created method will be compiled by the AOT compiler
6967 * @method: if non-NULL, the pinvoke method to call
6968 * @check_exceptions: Whenever to check for pending exceptions after the native call
6969 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
6971 * generates IL code for the pinvoke wrapper, the generated code calls @func.
6974 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)
6976 EmitMarshalContext m;
6977 MonoMethodSignature *csig;
6979 int i, argnum, *tmp_locals;
6980 int type, param_shift = 0;
6981 static MonoMethodSignature *get_last_error_sig = NULL;
6986 memset (&m, 0, sizeof (m));
6991 /* we copy the signature, so that we can set pinvoke to 0 */
6993 /* The function address is passed as the first argument */
6994 g_assert (!sig->hasthis);
6997 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7005 /* we allocate local for use with emit_struct_conv() */
7006 /* allocate local 0 (pointer) src_ptr */
7007 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7008 /* allocate local 1 (pointer) dst_ptr */
7009 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7010 /* allocate local 2 (boolean) delete_old */
7011 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7013 /* delete_old = FALSE */
7014 mono_mb_emit_icon (mb, 0);
7015 mono_mb_emit_stloc (mb, 2);
7017 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7018 /* allocate local 3 to store the return value */
7019 mono_mb_add_local (mb, sig->ret);
7023 /* local 4, the local to be used when calling the suspend funcs */
7024 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7027 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7028 /* Return type custom marshaling */
7030 * Since we can't determine the return type of the unmanaged function,
7031 * we assume it returns a pointer, and pass that pointer to
7032 * MarshalNativeToManaged.
7034 csig->ret = &mono_defaults.int_class->byval_arg;
7037 /* we first do all conversions */
7038 tmp_locals = alloca (sizeof (int) * sig->param_count);
7039 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
7041 for (i = 0; i < sig->param_count; i ++) {
7042 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7045 /* push all arguments */
7048 mono_mb_emit_byte (mb, CEE_LDARG_0);
7050 for (i = 0; i < sig->param_count; i++) {
7051 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7055 mono_mb_emit_icall (mb, mono_threads_prepare_blocking);
7056 mono_mb_emit_stloc (mb, coop_gc_var);
7059 /* call the native method */
7061 mono_mb_emit_byte (mb, CEE_LDARG_0);
7062 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7063 mono_mb_emit_byte (mb, CEE_LDIND_I);
7064 mono_mb_emit_calli (mb, csig);
7065 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7067 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7069 g_assert_not_reached ();
7074 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7075 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7076 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7077 mono_mb_emit_calli (mb, csig);
7079 mono_mb_emit_native_call (mb, csig, func);
7083 /* Set LastError if needed */
7084 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7085 if (!get_last_error_sig) {
7086 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7087 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7088 get_last_error_sig->pinvoke = 1;
7093 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7094 * clobber its value.
7096 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7097 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7099 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7104 mono_mb_emit_ldloc (mb, coop_gc_var);
7105 mono_mb_emit_icall (mb, mono_threads_finish_blocking);
7108 /* convert the result */
7109 if (!sig->ret->byref) {
7110 MonoMarshalSpec *spec = mspecs [0];
7111 type = sig->ret->type;
7113 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7114 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7119 case MONO_TYPE_VOID:
7121 case MONO_TYPE_VALUETYPE:
7122 klass = sig->ret->data.klass;
7123 if (klass->enumtype) {
7124 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7127 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7141 case MONO_TYPE_FNPTR:
7142 case MONO_TYPE_STRING:
7143 case MONO_TYPE_CLASS:
7144 case MONO_TYPE_OBJECT:
7145 case MONO_TYPE_BOOLEAN:
7146 case MONO_TYPE_ARRAY:
7147 case MONO_TYPE_SZARRAY:
7148 case MONO_TYPE_CHAR:
7150 case MONO_TYPE_GENERICINST:
7151 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7153 case MONO_TYPE_TYPEDBYREF:
7155 g_warning ("return type 0x%02x unknown", sig->ret->type);
7156 g_assert_not_reached ();
7160 mono_mb_emit_stloc (mb, 3);
7164 * Need to call this after converting the result since MONO_VTADDR needs
7165 * to be adjacent to the call instruction.
7167 if (check_exceptions)
7168 emit_thread_interrupt_checkpoint (mb);
7170 /* we need to convert byref arguments back and free string arrays */
7171 for (i = 0; i < sig->param_count; i++) {
7172 MonoType *t = sig->params [i];
7173 MonoMarshalSpec *spec = mspecs [i + 1];
7175 argnum = i + param_shift;
7177 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7178 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7183 case MONO_TYPE_STRING:
7184 case MONO_TYPE_VALUETYPE:
7185 case MONO_TYPE_CLASS:
7186 case MONO_TYPE_OBJECT:
7187 case MONO_TYPE_SZARRAY:
7188 case MONO_TYPE_BOOLEAN:
7189 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7196 if (!MONO_TYPE_IS_VOID(sig->ret))
7197 mono_mb_emit_ldloc (mb, 3);
7199 mono_mb_emit_byte (mb, CEE_RET);
7201 #endif /* DISABLE_JIT */
7204 * mono_marshal_get_native_wrapper:
7205 * @method: The MonoMethod to wrap.
7206 * @check_exceptions: Whenever to check for pending exceptions
7208 * generates IL code for the pinvoke wrapper (the generated method
7209 * calls the unmanaged code in piinfo->addr)
7210 * The wrapper info for the wrapper is a WrapperInfo structure.
7213 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7215 MonoMethodSignature *sig, *csig;
7216 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7217 MonoMethodBuilder *mb;
7218 MonoMarshalSpec **mspecs;
7221 gboolean pinvoke = FALSE;
7224 const char *exc_class = "MissingMethodException";
7225 const char *exc_arg = NULL;
7228 g_assert (method != NULL);
7229 g_assert (mono_method_signature (method)->pinvoke);
7231 GHashTable **cache_ptr;
7234 if (check_exceptions)
7235 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7237 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7239 if (check_exceptions)
7240 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7242 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7245 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7247 if ((res = mono_marshal_find_in_cache (cache, method)))
7250 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7251 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7255 return mono_cominterop_get_native_wrapper (method);
7257 g_assert_not_reached ();
7261 sig = mono_method_signature (method);
7263 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7264 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7267 if (!piinfo->addr) {
7269 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7270 exc_arg = "Method contains unsupported native code";
7272 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7274 piinfo->addr = mono_lookup_internal_call (method);
7278 /* hack - redirect certain string constructors to CreateString */
7279 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7280 g_assert (!pinvoke);
7281 g_assert (method->string_ctor);
7282 g_assert (sig->hasthis);
7284 /* CreateString returns a value */
7285 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7286 csig->ret = &mono_defaults.string_class->byval_arg;
7290 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7291 if (!strcmp ("CreateString", res->name) &&
7292 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7295 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7296 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7298 /* create a wrapper to preserve .ctor in stack trace */
7299 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7302 mono_mb_emit_byte (mb, CEE_LDARG_0);
7303 for (i = 1; i <= csig->param_count; i++)
7304 mono_mb_emit_ldarg (mb, i);
7305 mono_mb_emit_managed_call (mb, res, NULL);
7306 mono_mb_emit_byte (mb, CEE_RET);
7309 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7310 info->d.string_ctor.method = method;
7312 /* use native_wrapper_cache because internal calls are looked up there */
7313 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7314 csig->param_count + 1, info, NULL);
7321 /* exception will be thrown */
7322 piinfo->addr = NULL;
7323 g_warning ("cannot find CreateString for .ctor");
7326 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7328 mb->method->save_lmf = 1;
7331 * In AOT mode and embedding scenarios, it is possible that the icall is not
7332 * registered in the runtime doing the AOT compilation.
7334 if (!piinfo->addr && !aot) {
7336 mono_mb_emit_exception (mb, exc_class, exc_arg);
7338 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7339 info->d.managed_to_native.method = method;
7341 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7343 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7344 csig->param_count + 16, info, NULL);
7350 /* internal calls: we simply push all arguments and call the method (no conversions) */
7351 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7353 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7355 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7357 /* hack - string constructors returns a value */
7358 if (method->string_ctor)
7359 csig->ret = &mono_defaults.string_class->byval_arg;
7366 * Add a null check since public icalls can be called with 'call' which
7367 * does no such check.
7369 mono_mb_emit_byte (mb, CEE_LDARG_0);
7370 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7371 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7372 mono_mb_patch_branch (mb, pos);
7374 mono_mb_emit_byte (mb, CEE_LDARG_0);
7377 for (i = 0; i < sig->param_count; i++)
7378 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7381 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7382 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7383 mono_mb_emit_calli (mb, csig);
7385 g_assert (piinfo->addr);
7386 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7388 if (check_exceptions)
7389 emit_thread_interrupt_checkpoint (mb);
7390 mono_mb_emit_byte (mb, CEE_RET);
7392 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7393 info->d.managed_to_native.method = method;
7395 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7397 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7406 g_assert (piinfo->addr);
7409 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7410 mono_method_get_marshal_info (method, mspecs);
7412 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7414 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7415 info->d.managed_to_native.method = method;
7417 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7419 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7424 for (i = sig->param_count; i >= 0; i--)
7426 mono_metadata_free_marshal_spec (mspecs [i]);
7430 /* mono_method_print_code (res); */
7436 * mono_marshal_get_native_func_wrapper:
7437 * @image: The image to use for memory allocation and for looking up custom marshallers.
7438 * @sig: The signature of the function
7439 * @func: The native function to wrap
7441 * Returns a wrapper method around native functions, similar to the pinvoke
7445 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7446 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7448 MonoMethodSignature *csig;
7450 SignaturePointerPair key, *new_key;
7451 MonoMethodBuilder *mb;
7460 // Generic types are not safe to place in MonoImage caches.
7461 g_assert (!sig->is_inflated);
7463 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7464 if ((res = mono_marshal_find_in_cache (cache, &key)))
7467 name = g_strdup_printf ("wrapper_native_%p", func);
7468 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7469 mb->method->save_lmf = 1;
7472 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7475 csig = mono_metadata_signature_dup_full (image, sig);
7478 new_key = g_new (SignaturePointerPair,1);
7479 new_key->sig = csig;
7480 new_key->pointer = func;
7482 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7488 mono_marshal_set_wrapper_info (res, NULL);
7494 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7498 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7500 MonoMethodSignature *sig, *csig;
7501 MonoMethodBuilder *mb;
7506 MonoMethodPInvoke mpiinfo;
7507 MonoMethodPInvoke *piinfo = &mpiinfo;
7508 MonoMarshalSpec **mspecs;
7509 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7510 MonoImage *image = invoke->klass->image;
7513 // FIXME: include UnmanagedFunctionPointerAttribute info
7516 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7518 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7520 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7523 memset (&mpiinfo, 0, sizeof (mpiinfo));
7524 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7526 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7527 mono_method_get_marshal_info (invoke, mspecs);
7528 /* Freed below so don't alloc from mempool */
7529 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7532 name = g_strdup_printf ("wrapper_aot_native");
7533 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7534 mb->method->save_lmf = 1;
7537 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7540 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7541 info->d.managed_to_native.method = invoke;
7543 g_assert (!sig->hasthis);
7544 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
7546 res = mono_mb_create_and_cache_full (cache, invoke,
7547 mb, csig, csig->param_count + 16,
7551 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7553 mono_metadata_free_marshal_spec (mspecs [i]);
7561 * mono_marshal_emit_managed_wrapper:
7563 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7564 * the delegate which wraps the managed method to be called. For closed delegates,
7565 * it could have fewer parameters than the method it wraps.
7566 * THIS_LOC is the memory location where the target of the delegate is stored.
7569 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7572 MonoMethodSignature *sig, *csig;
7578 /* we first do all conversions */
7579 for (i = 0; i < sig->param_count; i ++) {
7580 MonoType *t = sig->params [i];
7583 case MONO_TYPE_OBJECT:
7584 case MONO_TYPE_CLASS:
7585 case MONO_TYPE_VALUETYPE:
7586 case MONO_TYPE_ARRAY:
7587 case MONO_TYPE_SZARRAY:
7588 case MONO_TYPE_STRING:
7589 case MONO_TYPE_BOOLEAN:
7590 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7594 if (!sig->ret->byref) {
7595 switch (sig->ret->type) {
7596 case MONO_TYPE_STRING:
7597 csig->ret = &mono_defaults.int_class->byval_arg;
7604 MonoMethodSignature *sig, *csig;
7606 gboolean closed = FALSE;
7614 /* allocate local 0 (pointer) src_ptr */
7615 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7616 /* allocate local 1 (pointer) dst_ptr */
7617 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7618 /* allocate local 2 (boolean) delete_old */
7619 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7621 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7622 /* Closed delegate */
7623 g_assert (sig->param_count == invoke_sig->param_count + 1);
7625 /* Use a new signature without the first argument */
7626 sig = mono_metadata_signature_dup (sig);
7627 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7628 sig->param_count --;
7631 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7632 /* allocate local 3 to store the return value */
7633 mono_mb_add_local (mb, sig->ret);
7636 /* local 4, the local to be used when calling the reset_blocking funcs */
7637 /* tons of code hardcode 3 to be the return var */
7638 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7641 mono_mb_emit_icon (mb, 0);
7642 mono_mb_emit_stloc (mb, 2);
7645 * Might need to attach the thread to the JIT or change the
7646 * domain for the callback.
7648 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7649 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
7652 /* XXX can we merge reset_blocking_start with JIT_ATTACH above and save one call? */
7653 mono_mb_emit_icall (mb, mono_threads_reset_blocking_start);
7654 mono_mb_emit_stloc (mb, coop_gc_var);
7657 /* we first do all conversions */
7658 tmp_locals = alloca (sizeof (int) * sig->param_count);
7659 for (i = 0; i < sig->param_count; i ++) {
7660 MonoType *t = sig->params [i];
7663 case MONO_TYPE_OBJECT:
7664 case MONO_TYPE_CLASS:
7665 case MONO_TYPE_VALUETYPE:
7666 case MONO_TYPE_ARRAY:
7667 case MONO_TYPE_SZARRAY:
7668 case MONO_TYPE_STRING:
7669 case MONO_TYPE_BOOLEAN:
7670 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7679 emit_thread_interrupt_checkpoint (mb);
7682 if (target_handle) {
7683 mono_mb_emit_icon (mb, (gint32)target_handle);
7684 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7687 g_assert_not_reached ();
7689 } else if (closed) {
7690 mono_mb_emit_icon (mb, (gint32)target_handle);
7691 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7694 for (i = 0; i < sig->param_count; i++) {
7695 MonoType *t = sig->params [i];
7697 if (tmp_locals [i]) {
7699 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
7701 mono_mb_emit_ldloc (mb, tmp_locals [i]);
7704 mono_mb_emit_ldarg (mb, i);
7707 mono_mb_emit_managed_call (mb, method, NULL);
7709 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7710 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7711 } else if (!sig->ret->byref) {
7712 switch (sig->ret->type) {
7713 case MONO_TYPE_VOID:
7715 case MONO_TYPE_BOOLEAN:
7718 case MONO_TYPE_CHAR:
7730 case MONO_TYPE_OBJECT:
7731 mono_mb_emit_stloc (mb, 3);
7733 case MONO_TYPE_STRING:
7734 csig->ret = &mono_defaults.int_class->byval_arg;
7735 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7737 case MONO_TYPE_VALUETYPE:
7738 case MONO_TYPE_CLASS:
7739 case MONO_TYPE_SZARRAY:
7740 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7743 g_warning ("return type 0x%02x unknown", sig->ret->type);
7744 g_assert_not_reached ();
7747 mono_mb_emit_stloc (mb, 3);
7750 /* Convert byref arguments back */
7751 for (i = 0; i < sig->param_count; i ++) {
7752 MonoType *t = sig->params [i];
7753 MonoMarshalSpec *spec = mspecs [i + 1];
7755 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7756 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7758 else if (t->byref) {
7760 case MONO_TYPE_CLASS:
7761 case MONO_TYPE_VALUETYPE:
7762 case MONO_TYPE_OBJECT:
7763 case MONO_TYPE_STRING:
7764 case MONO_TYPE_BOOLEAN:
7765 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7771 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
7772 /* The [Out] information is encoded in the delegate signature */
7774 case MONO_TYPE_SZARRAY:
7775 case MONO_TYPE_CLASS:
7776 case MONO_TYPE_VALUETYPE:
7777 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7780 g_assert_not_reached ();
7786 /* XXX merge reset_blocking_end with detach */
7787 mono_mb_emit_ldloc (mb, coop_gc_var);
7788 mono_mb_emit_icall (mb, mono_threads_reset_blocking_end);
7791 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7792 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
7794 if (m->retobj_var) {
7795 mono_mb_emit_ldloc (mb, m->retobj_var);
7796 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7797 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
7800 if (!MONO_TYPE_IS_VOID(sig->ret))
7801 mono_mb_emit_ldloc (mb, 3);
7802 mono_mb_emit_byte (mb, CEE_RET);
7811 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
7813 MonoMethodSignature *sig;
7818 * Under windows, delegates passed to native code must use the STDCALL
7819 * calling convention.
7821 csig->call_convention = MONO_CALL_STDCALL;
7824 sig = mono_method_signature (method);
7826 /* Change default calling convention if needed */
7827 /* Why is this a modopt ? */
7828 if (sig->ret && sig->ret->num_mods) {
7829 for (i = 0; i < sig->ret->num_mods; ++i) {
7831 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
7832 g_assert (mono_error_ok (&error));
7833 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
7834 if (!strcmp (cmod_class->name, "CallConvCdecl"))
7835 csig->call_convention = MONO_CALL_C;
7836 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
7837 csig->call_convention = MONO_CALL_STDCALL;
7838 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
7839 csig->call_convention = MONO_CALL_FASTCALL;
7840 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
7841 csig->call_convention = MONO_CALL_THISCALL;
7848 * generates IL code to call managed methods from unmanaged code
7849 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
7852 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
7854 static MonoClass *UnmanagedFunctionPointerAttribute;
7855 MonoMethodSignature *sig, *csig, *invoke_sig;
7856 MonoMethodBuilder *mb;
7857 MonoMethod *res, *invoke;
7858 MonoMarshalSpec **mspecs;
7859 MonoMethodPInvoke piinfo;
7862 EmitMarshalContext m;
7864 g_assert (method != NULL);
7865 g_assert (!mono_method_signature (method)->pinvoke);
7868 * FIXME: Should cache the method+delegate type pair, since the same method
7869 * could be called with different delegates, thus different marshalling
7872 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
7874 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
7877 invoke = mono_get_delegate_invoke (delegate_klass);
7878 invoke_sig = mono_method_signature (invoke);
7880 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7881 mono_method_get_marshal_info (invoke, mspecs);
7883 sig = mono_method_signature (method);
7885 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
7887 /*the target gchandle must be the first entry after size and the wrapper itself.*/
7888 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
7890 /* we copy the signature, so that we can modify it */
7892 /* Need to free this later */
7893 csig = mono_metadata_signature_dup (invoke_sig);
7895 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
7899 memset (&m, 0, sizeof (m));
7905 m.image = method->klass->image;
7907 mono_marshal_set_callconv_from_modopt (invoke, csig);
7909 /* Handle the UnmanagedFunctionPointerAttribute */
7910 if (!UnmanagedFunctionPointerAttribute)
7911 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
7913 /* The attribute is only available in Net 2.0 */
7914 if (UnmanagedFunctionPointerAttribute) {
7915 MonoCustomAttrInfo *cinfo;
7916 MonoCustomAttrEntry *attr;
7919 * The pinvoke attributes are stored in a real custom attribute. Obtain the
7920 * contents of the attribute without constructing it, as that might not be
7921 * possible when running in cross-compiling mode.
7923 cinfo = mono_custom_attrs_from_class (delegate_klass);
7926 for (i = 0; i < cinfo->num_attrs; ++i) {
7927 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
7928 if (mono_class_has_parent (ctor_class, UnmanagedFunctionPointerAttribute)) {
7929 attr = &cinfo->attrs [i];
7935 MonoArray *typed_args, *named_args;
7936 CattrNamedArg *arginfo;
7940 MonoBoolean set_last_error = 0;
7943 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
7944 g_assert (mono_error_ok (&error));
7945 g_assert (mono_array_length (typed_args) == 1);
7948 o = mono_array_get (typed_args, MonoObject*, 0);
7949 call_conv = *(gint32*)mono_object_unbox (o);
7952 for (i = 0; i < mono_array_length (named_args); ++i) {
7953 CattrNamedArg *narg = &arginfo [i];
7955 o = mono_array_get (named_args, MonoObject*, i);
7957 g_assert (narg->field);
7958 if (!strcmp (narg->field->name, "CharSet")) {
7959 charset = *(gint32*)mono_object_unbox (o);
7960 } else if (!strcmp (narg->field->name, "SetLastError")) {
7961 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
7962 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
7963 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
7964 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
7965 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
7967 g_assert_not_reached ();
7973 memset (&piinfo, 0, sizeof (piinfo));
7975 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
7977 csig->call_convention = call_conv - 1;
7980 if (cinfo && !cinfo->cached)
7981 mono_custom_attrs_free (cinfo);
7984 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
7986 if (!target_handle) {
7989 // FIXME: Associate it with the method+delegate_klass pair
7990 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7991 info->d.native_to_managed.method = method;
7992 info->d.native_to_managed.klass = delegate_klass;
7994 res = mono_mb_create_and_cache_full (cache, method,
7995 mb, csig, sig->param_count + 16,
8001 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8005 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8007 mono_metadata_free_marshal_spec (mspecs [i]);
8010 /* mono_method_print_code (res); */
8016 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8019 MonoMethodSignature *sig;
8020 MonoMethodBuilder *mb;
8025 method = mono_get_method (image, token, NULL);
8028 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8029 MonoMethodSignature *csig;
8030 MonoMarshalSpec **mspecs;
8031 EmitMarshalContext m;
8033 sig = mono_method_signature (method);
8034 g_assert (!sig->hasthis);
8036 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8037 mono_method_get_marshal_info (method, mspecs);
8039 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8040 csig = mono_metadata_signature_dup_full (image, sig);
8044 memset (&m, 0, sizeof (m));
8052 mono_marshal_set_callconv_from_modopt (method, csig);
8054 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8056 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8061 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8064 for (i = sig->param_count; i >= 0; i--)
8066 mono_metadata_free_marshal_spec (mspecs [i]);
8069 return mono_compile_method (method);
8072 sig = mono_method_signature (method);
8073 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8075 param_count = sig->param_count + sig->hasthis;
8077 for (i = 0; i < param_count; i++)
8078 mono_mb_emit_ldarg (mb, i);
8080 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8081 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8083 mono_mb_emit_op (mb, CEE_CALL, method);
8084 mono_mb_emit_byte (mb, CEE_RET);
8089 method = mono_mb_create (mb, sig, param_count, NULL);
8092 return mono_compile_method (method);
8098 * The code directly following this is the cache hit, value positive branch
8100 * This function takes a new method builder with 0 locals and adds two locals
8101 * to create multiple out-branches and the fall through state of having the object
8102 * on the stack after a cache miss
8105 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8106 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8107 MonoMethodBuilder *mb)
8111 /* allocate local 0 (pointer) obj_vtable */
8112 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8113 /* allocate local 1 (pointer) cached_vtable */
8114 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8117 mono_mb_emit_ldarg (mb, obj_arg_position);
8118 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8120 /*obj_vtable = obj->vtable;*/
8121 mono_mb_emit_ldarg (mb, obj_arg_position);
8122 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8123 mono_mb_emit_byte (mb, CEE_LDIND_I);
8124 mono_mb_emit_stloc (mb, 0);
8126 /* cached_vtable = *cache*/
8127 mono_mb_emit_ldarg (mb, cache_arg_position);
8128 mono_mb_emit_byte (mb, CEE_LDIND_I);
8129 mono_mb_emit_stloc (mb, 1);
8131 mono_mb_emit_ldloc (mb, 1);
8132 mono_mb_emit_byte (mb, CEE_LDC_I4);
8133 mono_mb_emit_i4 (mb, ~0x1);
8134 mono_mb_emit_byte (mb, CEE_CONV_I);
8135 mono_mb_emit_byte (mb, CEE_AND);
8136 mono_mb_emit_ldloc (mb, 0);
8137 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8138 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8140 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8141 mono_mb_emit_ldloc (mb, 1);
8142 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8143 mono_mb_emit_byte (mb, CEE_CONV_U);
8144 mono_mb_emit_byte (mb, CEE_AND);
8145 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8146 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8149 mono_mb_patch_branch (mb, cache_miss_pos);
8152 mono_mb_emit_ldarg (mb, obj_arg_position);
8153 mono_mb_emit_ldarg (mb, class_arg_position);
8154 mono_mb_emit_ldarg (mb, cache_arg_position);
8155 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8158 #endif /* DISABLE_JIT */
8161 * This does the equivalent of mono_object_castclass_with_cache.
8162 * The wrapper info for the wrapper is a WrapperInfo structure.
8165 mono_marshal_get_castclass_with_cache (void)
8167 static MonoMethod *cached;
8169 MonoMethodBuilder *mb;
8170 MonoMethodSignature *sig;
8171 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8174 const int obj_arg_position = 0;
8175 const int class_arg_position = 1;
8176 const int cache_arg_position = 2;
8181 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8182 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8183 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8184 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8185 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8186 sig->ret = &mono_defaults.object_class->byval_arg;
8190 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8191 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8192 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8195 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8196 mono_mb_emit_ldarg (mb, obj_arg_position);
8197 mono_mb_emit_byte (mb, CEE_RET);
8200 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8201 mono_mb_patch_branch (mb, invalid_cast_pos);
8202 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8205 mono_mb_patch_branch (mb, return_null_pos);
8206 mono_mb_emit_byte (mb, CEE_LDNULL);
8207 mono_mb_emit_byte (mb, CEE_RET);
8208 #endif /* DISABLE_JIT */
8210 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8211 res = mono_mb_create (mb, sig, 8, info);
8214 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8215 mono_free_method (res);
8216 mono_metadata_free_method_signature (sig);
8224 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8226 MonoObject *isinst = mono_object_isinst (obj, klass);
8228 #ifndef DISABLE_REMOTING
8229 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8233 uintptr_t cache_update = (uintptr_t)obj->vtable;
8235 cache_update = cache_update | 0x1;
8237 *cache = cache_update;
8243 * This does the equivalent of mono_object_isinst_with_cache.
8244 * The wrapper info for the wrapper is a WrapperInfo structure.
8247 mono_marshal_get_isinst_with_cache (void)
8249 static MonoMethod *cached;
8251 MonoMethodBuilder *mb;
8252 MonoMethodSignature *sig;
8253 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8256 const int obj_arg_position = 0;
8257 const int class_arg_position = 1;
8258 const int cache_arg_position = 2;
8263 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8264 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8266 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8268 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8270 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8271 sig->ret = &mono_defaults.object_class->byval_arg;
8275 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8276 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8277 // Return the object gotten via the slow path.
8278 mono_mb_emit_byte (mb, CEE_RET);
8281 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8282 mono_mb_patch_branch (mb, return_null_pos);
8283 mono_mb_emit_byte (mb, CEE_LDNULL);
8284 mono_mb_emit_byte (mb, CEE_RET);
8287 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8288 mono_mb_emit_ldarg (mb, 0);
8289 mono_mb_emit_byte (mb, CEE_RET);
8292 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8293 res = mono_mb_create (mb, sig, 8, info);
8296 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8297 mono_free_method (res);
8298 mono_metadata_free_method_signature (sig);
8306 * mono_marshal_get_isinst:
8307 * @klass: the type of the field
8309 * This method generates a function which can be used to check if an object is
8310 * an instance of the given type, icluding the case where the object is a proxy.
8311 * The generated function has the following signature:
8312 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8315 mono_marshal_get_isinst (MonoClass *klass)
8317 static MonoMethodSignature *isint_sig = NULL;
8321 int pos_was_ok, pos_end;
8322 #ifndef DISABLE_REMOTING
8323 int pos_end2, pos_failed;
8326 MonoMethodBuilder *mb;
8328 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8329 if ((res = mono_marshal_find_in_cache (cache, klass)))
8333 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8334 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8335 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8336 isint_sig->pinvoke = 0;
8339 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8340 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8343 mb->method->save_lmf = 1;
8346 /* check if the object is a proxy that needs special cast */
8347 mono_mb_emit_ldarg (mb, 0);
8348 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8349 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8351 /* The result of MONO_CISINST can be:
8352 0) the type check succeeded
8353 1) the type check did not succeed
8354 2) a CanCastTo call is needed */
8355 #ifndef DISABLE_REMOTING
8356 mono_mb_emit_byte (mb, CEE_DUP);
8357 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8359 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8360 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8362 /* get the real proxy from the transparent proxy*/
8364 mono_mb_emit_ldarg (mb, 0);
8365 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8366 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8370 mono_mb_patch_branch (mb, pos_failed);
8371 mono_mb_emit_byte (mb, CEE_LDNULL);
8372 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8376 mono_mb_patch_branch (mb, pos_was_ok);
8377 mono_mb_emit_byte (mb, CEE_POP);
8378 mono_mb_emit_ldarg (mb, 0);
8382 mono_mb_patch_branch (mb, pos_end);
8383 mono_mb_patch_branch (mb, pos_end2);
8384 mono_mb_emit_byte (mb, CEE_RET);
8386 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8390 mono_mb_emit_byte (mb, CEE_LDNULL);
8391 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8395 mono_mb_patch_branch (mb, pos_was_ok);
8396 mono_mb_emit_ldarg (mb, 0);
8400 mono_mb_patch_branch (mb, pos_end);
8401 mono_mb_emit_byte (mb, CEE_RET);
8402 #endif /* DISABLE_REMOTING */
8403 #endif /* DISABLE_JIT */
8405 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8406 info->d.proxy.klass = klass;
8407 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8414 * mono_marshal_get_castclass:
8415 * @klass: the type of the field
8417 * This method generates a function which can be used to cast an object to
8418 * an instance of the given type, icluding the case where the object is a proxy.
8419 * The generated function has the following signature:
8420 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8421 * The wrapper info for the wrapper is a WrapperInfo structure.
8424 mono_marshal_get_castclass (MonoClass *klass)
8426 static MonoMethodSignature *castclass_sig = NULL;
8429 #ifndef DISABLE_REMOTING
8430 int pos_was_ok, pos_was_ok2;
8433 MonoMethodBuilder *mb;
8436 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8437 if ((res = mono_marshal_find_in_cache (cache, klass)))
8440 if (!castclass_sig) {
8441 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8442 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8443 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8444 castclass_sig->pinvoke = 0;
8447 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8448 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8451 mb->method->save_lmf = 1;
8454 /* check if the object is a proxy that needs special cast */
8455 mono_mb_emit_ldarg (mb, 0);
8456 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8457 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8459 /* The result of MONO_CCASTCLASS can be:
8460 0) the cast is valid
8461 1) cast of unknown proxy type
8462 or an exception if the cast is is invalid
8464 #ifndef DISABLE_REMOTING
8465 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8467 /* get the real proxy from the transparent proxy*/
8469 mono_mb_emit_ldarg (mb, 0);
8470 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8471 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8474 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8477 mono_mb_patch_branch (mb, pos_was_ok);
8478 mono_mb_patch_branch (mb, pos_was_ok2);
8480 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8481 mono_mb_emit_byte (mb, CEE_POP);
8482 #endif /* DISABLE_REMOTING */
8484 mono_mb_emit_ldarg (mb, 0);
8487 mono_mb_emit_byte (mb, CEE_RET);
8488 #endif /* DISABLE_JIT */
8490 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8492 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8500 * mono_marshal_get_struct_to_ptr:
8503 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8504 * The wrapper info for the wrapper is a WrapperInfo structure.
8507 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8509 MonoMethodBuilder *mb;
8510 static MonoMethod *stoptr = NULL;
8514 g_assert (klass != NULL);
8516 mono_marshal_load_type_info (klass);
8518 if (klass->marshal_info->str_to_ptr)
8519 return klass->marshal_info->str_to_ptr;
8522 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8525 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8528 if (klass->blittable) {
8529 mono_mb_emit_byte (mb, CEE_LDARG_1);
8530 mono_mb_emit_byte (mb, CEE_LDARG_0);
8531 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8532 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8533 mono_mb_emit_byte (mb, CEE_PREFIX1);
8534 mono_mb_emit_byte (mb, CEE_CPBLK);
8537 /* allocate local 0 (pointer) src_ptr */
8538 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8539 /* allocate local 1 (pointer) dst_ptr */
8540 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8541 /* allocate local 2 (boolean) delete_old */
8542 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8543 mono_mb_emit_byte (mb, CEE_LDARG_2);
8544 mono_mb_emit_stloc (mb, 2);
8546 /* initialize src_ptr to point to the start of object data */
8547 mono_mb_emit_byte (mb, CEE_LDARG_0);
8548 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8549 mono_mb_emit_stloc (mb, 0);
8551 /* initialize dst_ptr */
8552 mono_mb_emit_byte (mb, CEE_LDARG_1);
8553 mono_mb_emit_stloc (mb, 1);
8555 emit_struct_conv (mb, klass, FALSE);
8558 mono_mb_emit_byte (mb, CEE_RET);
8560 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
8561 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
8564 klass->marshal_info->str_to_ptr = res;
8569 * mono_marshal_get_ptr_to_struct:
8572 * generates IL code for PtrToStructure (IntPtr src, object structure)
8573 * The wrapper info for the wrapper is a WrapperInfo structure.
8576 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8578 MonoMethodBuilder *mb;
8579 static MonoMethodSignature *ptostr = NULL;
8583 g_assert (klass != NULL);
8585 mono_marshal_load_type_info (klass);
8587 if (klass->marshal_info->ptr_to_str)
8588 return klass->marshal_info->ptr_to_str;
8591 MonoMethodSignature *sig;
8593 /* Create the signature corresponding to
8594 static void PtrToStructure (IntPtr ptr, object structure);
8595 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8596 sig = mono_create_icall_signature ("void ptr object");
8597 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
8599 mono_memory_barrier ();
8603 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8606 if (klass->blittable) {
8607 mono_mb_emit_byte (mb, CEE_LDARG_1);
8608 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8609 mono_mb_emit_byte (mb, CEE_LDARG_0);
8610 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8611 mono_mb_emit_byte (mb, CEE_PREFIX1);
8612 mono_mb_emit_byte (mb, CEE_CPBLK);
8615 /* allocate local 0 (pointer) src_ptr */
8616 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8617 /* allocate local 1 (pointer) dst_ptr */
8618 mono_mb_add_local (mb, &klass->this_arg);
8620 /* initialize src_ptr to point to the start of object data */
8621 mono_mb_emit_byte (mb, CEE_LDARG_0);
8622 mono_mb_emit_stloc (mb, 0);
8624 /* initialize dst_ptr */
8625 mono_mb_emit_byte (mb, CEE_LDARG_1);
8626 mono_mb_emit_op (mb, CEE_UNBOX, klass);
8627 mono_mb_emit_stloc (mb, 1);
8629 emit_struct_conv (mb, klass, TRUE);
8632 mono_mb_emit_byte (mb, CEE_RET);
8634 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
8635 res = mono_mb_create (mb, ptostr, 0, info);
8638 klass->marshal_info->ptr_to_str = res;
8643 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
8644 * This is used to avoid infinite recursion since it is hard to determine where to
8645 * replace a method with its synchronized wrapper, and where not.
8646 * The runtime should execute METHOD instead of the wrapper.
8647 * The wrapper info for the wrapper is a WrapperInfo structure.
8650 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
8652 MonoMethodBuilder *mb;
8654 MonoMethodSignature *sig;
8656 MonoGenericContext *ctx = NULL;
8657 MonoGenericContainer *container = NULL;
8659 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8660 ctx = &((MonoMethodInflated*)method)->context;
8661 method = ((MonoMethodInflated*)method)->declaring;
8662 container = mono_method_get_generic_container (method);
8664 container = method->klass->generic_container;
8665 g_assert (container);
8668 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
8670 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
8671 mono_mb_emit_byte (mb, CEE_RET);
8673 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
8675 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
8676 info->d.synchronized_inner.method = method;
8677 res = mono_mb_create (mb, sig, 0, info);
8681 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
8682 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8688 * generates IL code for the synchronized wrapper: the generated method
8689 * calls METHOD while locking 'this' or the parent type.
8692 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
8694 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
8695 MonoMethodSignature *sig;
8696 MonoExceptionClause *clause;
8697 MonoMethodBuilder *mb;
8700 int i, pos, pos2, this_local, taken_local, ret_local = 0;
8701 MonoGenericContext *ctx = NULL;
8702 MonoMethod *orig_method = NULL;
8703 MonoGenericContainer *container = NULL;
8707 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
8710 /* FIXME: Support generic methods too */
8711 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8712 orig_method = method;
8713 ctx = &((MonoMethodInflated*)method)->context;
8714 method = ((MonoMethodInflated*)method)->declaring;
8715 container = mono_method_get_generic_container (method);
8717 container = method->klass->generic_container;
8718 g_assert (container);
8725 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
8726 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
8730 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
8731 if ((res = mono_marshal_find_in_cache (cache, method)))
8735 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
8738 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
8741 mb->skip_visibility = 1;
8743 if (!MONO_TYPE_IS_VOID (sig->ret))
8744 ret_local = mono_mb_add_local (mb, sig->ret);
8747 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
8748 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
8750 /* This will throw the type load exception when the wrapper is compiled */
8751 mono_mb_emit_byte (mb, CEE_LDNULL);
8752 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
8753 mono_mb_emit_byte (mb, CEE_POP);
8755 if (!MONO_TYPE_IS_VOID (sig->ret))
8756 mono_mb_emit_ldloc (mb, ret_local);
8757 mono_mb_emit_byte (mb, CEE_RET);
8760 res = mono_mb_create_and_cache (cache, method,
8761 mb, sig, sig->param_count + 16);
8769 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8770 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8772 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
8773 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8776 mono_marshal_lock ();
8778 if (!enter_method) {
8779 MonoMethodDesc *desc;
8781 desc = mono_method_desc_new ("Monitor:enter_with_atomic_var(object,bool&)", FALSE);
8782 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8783 g_assert (enter_method);
8784 mono_method_desc_free (desc);
8786 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
8787 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8788 g_assert (exit_method);
8789 mono_method_desc_free (desc);
8791 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
8792 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
8793 g_assert (gettypefromhandle_method);
8794 mono_method_desc_free (desc);
8797 mono_marshal_unlock ();
8800 /* Push this or the type object */
8801 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
8802 /* We have special handling for this in the JIT */
8803 int index = mono_mb_add_data (mb, method->klass);
8804 mono_mb_add_data (mb, mono_defaults.typehandle_class);
8805 mono_mb_emit_byte (mb, CEE_LDTOKEN);
8806 mono_mb_emit_i4 (mb, index);
8808 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
8811 mono_mb_emit_ldarg (mb, 0);
8812 mono_mb_emit_stloc (mb, this_local);
8814 /* Call Monitor::Enter() */
8815 mono_mb_emit_ldloc (mb, this_local);
8816 mono_mb_emit_ldloc_addr (mb, taken_local);
8817 mono_mb_emit_managed_call (mb, enter_method, NULL);
8819 clause->try_offset = mono_mb_get_label (mb);
8821 /* Call the method */
8823 mono_mb_emit_ldarg (mb, 0);
8824 for (i = 0; i < sig->param_count; i++)
8825 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
8829 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
8830 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8832 mono_mb_emit_managed_call (mb, method, NULL);
8835 if (!MONO_TYPE_IS_VOID (sig->ret))
8836 mono_mb_emit_stloc (mb, ret_local);
8838 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8840 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
8841 clause->handler_offset = mono_mb_get_label (mb);
8843 /* Call Monitor::Exit() if needed */
8844 mono_mb_emit_ldloc (mb, taken_local);
8845 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
8846 mono_mb_emit_ldloc (mb, this_local);
8847 mono_mb_emit_managed_call (mb, exit_method, NULL);
8848 mono_mb_patch_branch (mb, pos2);
8849 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8851 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
8853 mono_mb_patch_branch (mb, pos);
8854 if (!MONO_TYPE_IS_VOID (sig->ret))
8855 mono_mb_emit_ldloc (mb, ret_local);
8856 mono_mb_emit_byte (mb, CEE_RET);
8858 mono_mb_set_clauses (mb, 1, clause);
8863 def = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
8864 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
8866 res = mono_mb_create_and_cache (cache, method,
8867 mb, sig, sig->param_count + 16);
8876 * the returned method calls 'method' unboxing the this argument
8879 mono_marshal_get_unbox_wrapper (MonoMethod *method)
8881 MonoMethodSignature *sig = mono_method_signature (method);
8883 MonoMethodBuilder *mb;
8887 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
8889 if ((res = mono_marshal_find_in_cache (cache, method)))
8892 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
8894 g_assert (sig->hasthis);
8897 mono_mb_emit_ldarg (mb, 0);
8898 mono_mb_emit_icon (mb, sizeof (MonoObject));
8899 mono_mb_emit_byte (mb, CEE_ADD);
8900 for (i = 0; i < sig->param_count; ++i)
8901 mono_mb_emit_ldarg (mb, i + 1);
8902 mono_mb_emit_managed_call (mb, method, NULL);
8903 mono_mb_emit_byte (mb, CEE_RET);
8906 res = mono_mb_create_and_cache (cache, method,
8907 mb, sig, sig->param_count + 16);
8910 /* mono_method_print_code (res); */
8916 STELEMREF_OBJECT, /*no check at all*/
8917 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
8918 STELEMREF_CLASS, /*only the klass->parents check*/
8919 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
8920 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
8921 STELEMREF_KIND_COUNT
8924 static const char *strelemref_wrapper_name[] = {
8925 "object", "sealed_class", "class", "interface", "complex"
8929 is_monomorphic_array (MonoClass *klass)
8931 MonoClass *element_class;
8932 if (klass->rank != 1)
8935 element_class = klass->element_class;
8936 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
8940 get_virtual_stelemref_kind (MonoClass *element_class)
8942 if (element_class == mono_defaults.object_class)
8943 return STELEMREF_OBJECT;
8944 if (is_monomorphic_array (element_class))
8945 return STELEMREF_SEALED_CLASS;
8946 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
8947 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
8948 #ifdef COMPRESSED_INTERFACE_BITMAP
8949 return STELEMREF_COMPLEX;
8951 return STELEMREF_INTERFACE;
8953 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
8954 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
8955 return STELEMREF_COMPLEX;
8956 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
8957 return STELEMREF_SEALED_CLASS;
8958 return STELEMREF_CLASS;
8964 load_array_element_address (MonoMethodBuilder *mb)
8966 mono_mb_emit_ldarg (mb, 0);
8967 mono_mb_emit_ldarg (mb, 1);
8968 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
8972 load_array_class (MonoMethodBuilder *mb, int aklass)
8974 mono_mb_emit_ldarg (mb, 0);
8975 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8976 mono_mb_emit_byte (mb, CEE_LDIND_I);
8977 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
8978 mono_mb_emit_byte (mb, CEE_LDIND_I);
8979 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
8980 mono_mb_emit_byte (mb, CEE_LDIND_I);
8981 mono_mb_emit_stloc (mb, aklass);
8985 load_value_class (MonoMethodBuilder *mb, int vklass)
8987 mono_mb_emit_ldarg (mb, 2);
8988 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8989 mono_mb_emit_byte (mb, CEE_LDIND_I);
8990 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
8991 mono_mb_emit_byte (mb, CEE_LDIND_I);
8992 mono_mb_emit_stloc (mb, vklass);
8998 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9000 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9001 printf ("slow vstore of %s\n", name);
9007 * The wrapper info for the wrapper is a WrapperInfo structure.
9010 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9011 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9012 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9013 * - Add a case for arrays of arrays.
9016 get_virtual_stelemref_wrapper (int kind)
9018 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9019 static MonoMethodSignature *signature;
9020 MonoMethodBuilder *mb;
9023 const char *param_names [16];
9025 int aklass, vklass, vtable, uiid;
9026 int array_slot_addr;
9029 if (cached_methods [kind])
9030 return cached_methods [kind];
9032 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9033 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9037 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9039 /* void this::stelemref (size_t idx, void* value) */
9040 sig->ret = &mono_defaults.void_class->byval_arg;
9041 sig->hasthis = TRUE;
9042 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9043 sig->params [1] = &mono_defaults.object_class->byval_arg;
9048 param_names [0] = "index";
9049 param_names [1] = "value";
9050 mono_mb_set_param_names (mb, param_names);
9052 /*For now simply call plain old stelemref*/
9054 case STELEMREF_OBJECT:
9055 /* ldelema (implicit bound check) */
9056 load_array_element_address (mb);
9058 mono_mb_emit_ldarg (mb, 2);
9059 mono_mb_emit_byte (mb, CEE_STIND_REF);
9060 mono_mb_emit_byte (mb, CEE_RET);
9063 case STELEMREF_COMPLEX:
9065 <ldelema (bound check)>
9068 if (!mono_object_isinst (value, aklass))
9072 *array_slot_addr = value;
9075 throw new ArrayTypeMismatchException ();
9078 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9079 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9083 /*Use this to debug/record stores that are going thru the slow path*/
9084 MonoMethodSignature *csig;
9085 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9086 csig->ret = &mono_defaults.void_class->byval_arg;
9087 csig->params [0] = &mono_defaults.object_class->byval_arg;
9088 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9089 csig->params [2] = &mono_defaults.object_class->byval_arg;
9090 mono_mb_emit_ldarg (mb, 0);
9091 mono_mb_emit_ldarg (mb, 1);
9092 mono_mb_emit_ldarg (mb, 2);
9093 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9097 /* ldelema (implicit bound check) */
9098 load_array_element_address (mb);
9099 mono_mb_emit_stloc (mb, array_slot_addr);
9101 /* if (!value) goto do_store */
9102 mono_mb_emit_ldarg (mb, 2);
9103 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9105 /* aklass = array->vtable->klass->element_class */
9106 load_array_class (mb, aklass);
9108 /*if (mono_object_isinst (value, aklass)) */
9109 mono_mb_emit_ldarg (mb, 2);
9110 mono_mb_emit_ldloc (mb, aklass);
9111 mono_mb_emit_icall (mb, mono_object_isinst);
9112 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9115 mono_mb_patch_branch (mb, b1);
9116 mono_mb_emit_ldloc (mb, array_slot_addr);
9117 mono_mb_emit_ldarg (mb, 2);
9118 mono_mb_emit_byte (mb, CEE_STIND_REF);
9119 mono_mb_emit_byte (mb, CEE_RET);
9122 mono_mb_patch_branch (mb, b2);
9124 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9127 case STELEMREF_SEALED_CLASS:
9129 <ldelema (bound check)>
9133 aklass = array->vtable->klass->element_class;
9134 vklass = value->vtable->klass;
9136 if (vklass != aklass)
9140 *array_slot_addr = value;
9143 throw new ArrayTypeMismatchException ();
9145 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9146 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9147 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9150 /* ldelema (implicit bound check) */
9151 load_array_element_address (mb);
9152 mono_mb_emit_stloc (mb, array_slot_addr);
9154 /* if (!value) goto do_store */
9155 mono_mb_emit_ldarg (mb, 2);
9156 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9158 /* aklass = array->vtable->klass->element_class */
9159 load_array_class (mb, aklass);
9161 /* vklass = value->vtable->klass */
9162 load_value_class (mb, vklass);
9164 /*if (vklass != aklass) goto do_exception; */
9165 mono_mb_emit_ldloc (mb, aklass);
9166 mono_mb_emit_ldloc (mb, vklass);
9167 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9170 mono_mb_patch_branch (mb, b1);
9171 mono_mb_emit_ldloc (mb, array_slot_addr);
9172 mono_mb_emit_ldarg (mb, 2);
9173 mono_mb_emit_byte (mb, CEE_STIND_REF);
9174 mono_mb_emit_byte (mb, CEE_RET);
9177 mono_mb_patch_branch (mb, b2);
9178 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9181 case STELEMREF_CLASS:
9184 <ldelema (bound check)>
9188 aklass = array->vtable->klass->element_class;
9189 vklass = value->vtable->klass;
9191 if (vklass->idepth < aklass->idepth)
9194 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9198 *array_slot_addr = value;
9202 throw new ArrayTypeMismatchException ();
9204 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9205 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9206 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9208 /* ldelema (implicit bound check) */
9209 load_array_element_address (mb);
9210 mono_mb_emit_stloc (mb, array_slot_addr);
9212 /* if (!value) goto do_store */
9213 mono_mb_emit_ldarg (mb, 2);
9214 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9216 /* aklass = array->vtable->klass->element_class */
9217 load_array_class (mb, aklass);
9219 /* vklass = value->vtable->klass */
9220 load_value_class (mb, vklass);
9222 /*if (mono_object_isinst (value, aklass)) */
9223 mono_mb_emit_ldarg (mb, 2);
9224 mono_mb_emit_ldloc (mb, aklass);
9225 mono_mb_emit_icall (mb, mono_object_isinst);
9226 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9228 /* if (vklass->idepth < aklass->idepth) goto failue */
9229 mono_mb_emit_ldloc (mb, vklass);
9230 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9231 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9233 mono_mb_emit_ldloc (mb, aklass);
9234 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9235 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9237 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9239 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9240 mono_mb_emit_ldloc (mb, vklass);
9241 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9242 mono_mb_emit_byte (mb, CEE_LDIND_I);
9244 mono_mb_emit_ldloc (mb, aklass);
9245 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9246 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9247 mono_mb_emit_icon (mb, 1);
9248 mono_mb_emit_byte (mb, CEE_SUB);
9249 mono_mb_emit_icon (mb, sizeof (void*));
9250 mono_mb_emit_byte (mb, CEE_MUL);
9251 mono_mb_emit_byte (mb, CEE_ADD);
9252 mono_mb_emit_byte (mb, CEE_LDIND_I);
9254 mono_mb_emit_ldloc (mb, aklass);
9255 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9258 mono_mb_patch_branch (mb, b1);
9259 mono_mb_emit_ldloc (mb, array_slot_addr);
9260 mono_mb_emit_ldarg (mb, 2);
9261 mono_mb_emit_byte (mb, CEE_STIND_REF);
9262 mono_mb_emit_byte (mb, CEE_RET);
9265 mono_mb_patch_branch (mb, b2);
9266 mono_mb_patch_branch (mb, b3);
9268 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9271 case STELEMREF_INTERFACE:
9278 klass = array->obj.vtable->klass->element_class;
9280 uiid = klass->interface_id;
9281 if (uiid > vt->max_interface_id)
9283 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9286 mono_array_setref (array, index, value);
9289 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9291 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9292 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9293 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9294 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9296 /* ldelema (implicit bound check) */
9297 load_array_element_address (mb);
9298 mono_mb_emit_stloc (mb, array_slot_addr);
9300 /* if (!value) goto do_store */
9301 mono_mb_emit_ldarg (mb, 2);
9302 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9304 /* klass = array->vtable->klass->element_class */
9305 load_array_class (mb, aklass);
9307 /* vt = value->vtable */
9308 mono_mb_emit_ldarg (mb, 2);
9309 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9310 mono_mb_emit_byte (mb, CEE_LDIND_I);
9311 mono_mb_emit_stloc (mb, vtable);
9313 /* uiid = klass->interface_id; */
9314 mono_mb_emit_ldloc (mb, aklass);
9315 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9316 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9317 mono_mb_emit_stloc (mb, uiid);
9319 /*if (uiid > vt->max_interface_id)*/
9320 mono_mb_emit_ldloc (mb, uiid);
9321 mono_mb_emit_ldloc (mb, vtable);
9322 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9323 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9324 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9326 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9328 /*vt->interface_bitmap*/
9329 mono_mb_emit_ldloc (mb, vtable);
9330 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9331 mono_mb_emit_byte (mb, CEE_LDIND_I);
9334 mono_mb_emit_ldloc (mb, uiid);
9335 mono_mb_emit_icon (mb, 3);
9336 mono_mb_emit_byte (mb, CEE_SHR_UN);
9338 /*vt->interface_bitmap [(uiid) >> 3]*/
9339 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9340 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9342 /*(1 << ((uiid)&7)))*/
9343 mono_mb_emit_icon (mb, 1);
9344 mono_mb_emit_ldloc (mb, uiid);
9345 mono_mb_emit_icon (mb, 7);
9346 mono_mb_emit_byte (mb, CEE_AND);
9347 mono_mb_emit_byte (mb, CEE_SHL);
9349 /*bitwise and the whole thing*/
9350 mono_mb_emit_byte (mb, CEE_AND);
9351 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9354 mono_mb_patch_branch (mb, b1);
9355 mono_mb_emit_ldloc (mb, array_slot_addr);
9356 mono_mb_emit_ldarg (mb, 2);
9357 mono_mb_emit_byte (mb, CEE_STIND_REF);
9358 mono_mb_emit_byte (mb, CEE_RET);
9361 mono_mb_patch_branch (mb, b2);
9362 mono_mb_patch_branch (mb, b3);
9363 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9367 mono_mb_emit_ldarg (mb, 0);
9368 mono_mb_emit_ldarg (mb, 1);
9369 mono_mb_emit_ldarg (mb, 2);
9370 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9371 mono_mb_emit_byte (mb, CEE_RET);
9374 #endif /* DISABLE_JIT */
9375 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9376 info->d.virtual_stelemref.kind = kind;
9377 res = mono_mb_create (mb, signature, 4, info);
9378 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9380 mono_marshal_lock ();
9381 if (!cached_methods [kind]) {
9382 cached_methods [kind] = res;
9383 mono_marshal_unlock ();
9385 mono_marshal_unlock ();
9386 mono_free_method (res);
9390 return cached_methods [kind];
9394 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9398 g_assert (array_class->rank == 1);
9399 kind = get_virtual_stelemref_kind (array_class->element_class);
9401 return get_virtual_stelemref_wrapper (kind);
9405 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9410 *nwrappers = STELEMREF_KIND_COUNT;
9411 res = g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9412 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9413 res [i] = get_virtual_stelemref_wrapper (i);
9418 * The wrapper info for the wrapper is a WrapperInfo structure.
9421 mono_marshal_get_stelemref (void)
9423 static MonoMethod* ret = NULL;
9424 MonoMethodSignature *sig;
9425 MonoMethodBuilder *mb;
9428 guint32 b1, b2, b3, b4;
9431 int array_slot_addr;
9436 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9439 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9441 /* void stelemref (void* array, int idx, void* value) */
9442 sig->ret = &mono_defaults.void_class->byval_arg;
9443 sig->params [0] = &mono_defaults.object_class->byval_arg;
9444 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9445 sig->params [2] = &mono_defaults.object_class->byval_arg;
9448 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9449 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9450 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9454 <ldelema (bound check)>
9458 aklass = array->vtable->klass->element_class;
9459 vklass = value->vtable->klass;
9461 if (vklass->idepth < aklass->idepth)
9464 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9468 *array_slot_addr = value;
9472 if (mono_object_isinst (value, aklass))
9475 throw new ArrayTypeMismatchException ();
9478 /* ldelema (implicit bound check) */
9479 mono_mb_emit_ldarg (mb, 0);
9480 mono_mb_emit_ldarg (mb, 1);
9481 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9482 mono_mb_emit_stloc (mb, array_slot_addr);
9484 /* if (!value) goto do_store */
9485 mono_mb_emit_ldarg (mb, 2);
9486 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9488 /* aklass = array->vtable->klass->element_class */
9489 mono_mb_emit_ldarg (mb, 0);
9490 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9491 mono_mb_emit_byte (mb, CEE_LDIND_I);
9492 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9493 mono_mb_emit_byte (mb, CEE_LDIND_I);
9494 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9495 mono_mb_emit_byte (mb, CEE_LDIND_I);
9496 mono_mb_emit_stloc (mb, aklass);
9498 /* vklass = value->vtable->klass */
9499 mono_mb_emit_ldarg (mb, 2);
9500 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9501 mono_mb_emit_byte (mb, CEE_LDIND_I);
9502 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9503 mono_mb_emit_byte (mb, CEE_LDIND_I);
9504 mono_mb_emit_stloc (mb, vklass);
9506 /* if (vklass->idepth < aklass->idepth) goto failue */
9507 mono_mb_emit_ldloc (mb, vklass);
9508 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9509 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9511 mono_mb_emit_ldloc (mb, aklass);
9512 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9513 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9515 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9517 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9518 mono_mb_emit_ldloc (mb, vklass);
9519 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9520 mono_mb_emit_byte (mb, CEE_LDIND_I);
9522 mono_mb_emit_ldloc (mb, aklass);
9523 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9524 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9525 mono_mb_emit_icon (mb, 1);
9526 mono_mb_emit_byte (mb, CEE_SUB);
9527 mono_mb_emit_icon (mb, sizeof (void*));
9528 mono_mb_emit_byte (mb, CEE_MUL);
9529 mono_mb_emit_byte (mb, CEE_ADD);
9530 mono_mb_emit_byte (mb, CEE_LDIND_I);
9532 mono_mb_emit_ldloc (mb, aklass);
9534 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9536 copy_pos = mono_mb_get_label (mb);
9538 mono_mb_patch_branch (mb, b1);
9539 mono_mb_emit_ldloc (mb, array_slot_addr);
9540 mono_mb_emit_ldarg (mb, 2);
9541 mono_mb_emit_byte (mb, CEE_STIND_REF);
9543 mono_mb_emit_byte (mb, CEE_RET);
9546 mono_mb_patch_branch (mb, b2);
9547 mono_mb_patch_branch (mb, b3);
9549 mono_mb_emit_ldarg (mb, 2);
9550 mono_mb_emit_ldloc (mb, aklass);
9551 mono_mb_emit_icall (mb, mono_object_isinst);
9553 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9554 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9555 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9557 mono_mb_emit_byte (mb, CEE_RET);
9559 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9560 ret = mono_mb_create (mb, sig, 4, info);
9567 * mono_marshal_get_gsharedvt_in_wrapper:
9569 * This wrapper handles calls from normal code to gsharedvt code.
9571 * The wrapper info for the wrapper is a WrapperInfo structure.
9574 mono_marshal_get_gsharedvt_in_wrapper (void)
9576 static MonoMethod* ret = NULL;
9577 MonoMethodSignature *sig;
9578 MonoMethodBuilder *mb;
9584 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
9586 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9587 sig->ret = &mono_defaults.void_class->byval_arg;
9591 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9593 mono_mb_emit_byte (mb, CEE_RET);
9595 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
9596 ret = mono_mb_create (mb, sig, 4, info);
9603 * mono_marshal_get_gsharedvt_out_wrapper:
9605 * This wrapper handles calls from gsharedvt code to normal code.
9607 * The wrapper info for the wrapper is a WrapperInfo structure.
9610 mono_marshal_get_gsharedvt_out_wrapper (void)
9612 static MonoMethod* ret = NULL;
9613 MonoMethodSignature *sig;
9614 MonoMethodBuilder *mb;
9620 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
9622 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9623 sig->ret = &mono_defaults.void_class->byval_arg;
9627 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9629 mono_mb_emit_byte (mb, CEE_RET);
9631 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
9632 ret = mono_mb_create (mb, sig, 4, info);
9644 /* LOCKING: vars accessed under the marshal lock */
9645 static ArrayElemAddr *elem_addr_cache = NULL;
9646 static int elem_addr_cache_size = 0;
9647 static int elem_addr_cache_next = 0;
9650 * mono_marshal_get_array_address:
9651 * @rank: rank of the array type
9652 * @elem_size: size in bytes of an element of an array.
9654 * Returns a MonoMethod that implements the code to get the address
9655 * of an element in a multi-dimenasional array of @rank dimensions.
9656 * The returned method takes an array as the first argument and then
9657 * @rank indexes for the @rank dimensions.
9658 * If ELEM_SIZE is 0, read the array size from the array object.
9661 mono_marshal_get_array_address (int rank, int elem_size)
9664 MonoMethodBuilder *mb;
9665 MonoMethodSignature *sig;
9668 int i, bounds, ind, realidx;
9669 int branch_pos, *branch_positions;
9673 mono_marshal_lock ();
9674 for (i = 0; i < elem_addr_cache_next; ++i) {
9675 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9676 ret = elem_addr_cache [i].method;
9680 mono_marshal_unlock ();
9684 branch_positions = g_new0 (int, rank);
9686 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9688 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9689 sig->ret = &mono_defaults.int_class->byval_arg;
9690 sig->params [0] = &mono_defaults.object_class->byval_arg;
9691 for (i = 0; i < rank; ++i) {
9692 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9695 name = g_strdup_printf ("ElementAddr_%d", elem_size);
9696 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9700 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9701 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9702 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9704 /* bounds = array->bounds; */
9705 mono_mb_emit_ldarg (mb, 0);
9706 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
9707 mono_mb_emit_byte (mb, CEE_LDIND_I);
9708 mono_mb_emit_stloc (mb, bounds);
9710 /* ind is the overall element index, realidx is the partial index in a single dimension */
9711 /* ind = idx0 - bounds [0].lower_bound */
9712 mono_mb_emit_ldarg (mb, 1);
9713 mono_mb_emit_ldloc (mb, bounds);
9714 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9715 mono_mb_emit_byte (mb, CEE_ADD);
9716 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9717 mono_mb_emit_byte (mb, CEE_SUB);
9718 mono_mb_emit_stloc (mb, ind);
9719 /* if (ind >= bounds [0].length) goto exeception; */
9720 mono_mb_emit_ldloc (mb, ind);
9721 mono_mb_emit_ldloc (mb, bounds);
9722 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9723 mono_mb_emit_byte (mb, CEE_ADD);
9724 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9725 /* note that we use unsigned comparison */
9726 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9728 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9729 * We could also decide to ignore the passed elem_size and get it
9730 * from the array object, to reduce the number of methods we generate:
9731 * the additional cost is 3 memory loads and a non-immediate mul.
9733 for (i = 1; i < rank; ++i) {
9734 /* realidx = idxi - bounds [i].lower_bound */
9735 mono_mb_emit_ldarg (mb, 1 + i);
9736 mono_mb_emit_ldloc (mb, bounds);
9737 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9738 mono_mb_emit_byte (mb, CEE_ADD);
9739 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9740 mono_mb_emit_byte (mb, CEE_SUB);
9741 mono_mb_emit_stloc (mb, realidx);
9742 /* if (realidx >= bounds [i].length) goto exeception; */
9743 mono_mb_emit_ldloc (mb, realidx);
9744 mono_mb_emit_ldloc (mb, bounds);
9745 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9746 mono_mb_emit_byte (mb, CEE_ADD);
9747 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9748 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9749 /* ind = ind * bounds [i].length + realidx */
9750 mono_mb_emit_ldloc (mb, ind);
9751 mono_mb_emit_ldloc (mb, bounds);
9752 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9753 mono_mb_emit_byte (mb, CEE_ADD);
9754 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9755 mono_mb_emit_byte (mb, CEE_MUL);
9756 mono_mb_emit_ldloc (mb, realidx);
9757 mono_mb_emit_byte (mb, CEE_ADD);
9758 mono_mb_emit_stloc (mb, ind);
9761 /* return array->vector + ind * element_size */
9762 mono_mb_emit_ldarg (mb, 0);
9763 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
9764 mono_mb_emit_ldloc (mb, ind);
9766 mono_mb_emit_icon (mb, elem_size);
9768 /* Load arr->vtable->klass->sizes.element_class */
9769 mono_mb_emit_ldarg (mb, 0);
9770 mono_mb_emit_byte (mb, CEE_CONV_I);
9771 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9772 mono_mb_emit_byte (mb, CEE_ADD);
9773 mono_mb_emit_byte (mb, CEE_LDIND_I);
9774 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9775 mono_mb_emit_byte (mb, CEE_ADD);
9776 mono_mb_emit_byte (mb, CEE_LDIND_I);
9777 /* sizes is an union, so this reads sizes.element_size */
9778 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
9779 mono_mb_emit_byte (mb, CEE_ADD);
9780 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9782 mono_mb_emit_byte (mb, CEE_MUL);
9783 mono_mb_emit_byte (mb, CEE_ADD);
9784 mono_mb_emit_byte (mb, CEE_RET);
9786 /* patch the branches to get here and throw */
9787 for (i = 1; i < rank; ++i) {
9788 mono_mb_patch_branch (mb, branch_positions [i]);
9790 mono_mb_patch_branch (mb, branch_pos);
9791 /* throw exception */
9792 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9794 g_free (branch_positions);
9795 #endif /* DISABLE_JIT */
9797 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
9798 info->d.element_addr.rank = rank;
9799 info->d.element_addr.elem_size = elem_size;
9800 ret = mono_mb_create (mb, sig, 4, info);
9803 /* cache the result */
9805 mono_marshal_lock ();
9806 for (i = 0; i < elem_addr_cache_next; ++i) {
9807 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9808 /* FIXME: free ret */
9809 ret = elem_addr_cache [i].method;
9815 if (elem_addr_cache_next >= elem_addr_cache_size) {
9816 int new_size = elem_addr_cache_size + 4;
9817 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9818 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9819 g_free (elem_addr_cache);
9820 elem_addr_cache = new_array;
9821 elem_addr_cache_size = new_size;
9823 elem_addr_cache [elem_addr_cache_next].rank = rank;
9824 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9825 elem_addr_cache [elem_addr_cache_next].method = ret;
9826 elem_addr_cache_next ++;
9828 mono_marshal_unlock ();
9833 * mono_marshal_get_array_accessor_wrapper:
9835 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
9838 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
9840 MonoMethodSignature *sig;
9841 MonoMethodBuilder *mb;
9845 MonoGenericContext *ctx = NULL;
9846 MonoMethod *orig_method = NULL;
9847 MonoGenericContainer *container = NULL;
9851 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
9852 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
9853 * FIXME: Use generic methods.
9860 g_assert_not_reached ();
9862 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
9863 if ((res = mono_marshal_find_in_cache (cache, method)))
9867 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9870 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9873 /* Call the method */
9875 mono_mb_emit_ldarg (mb, 0);
9876 for (i = 0; i < sig->param_count; i++)
9877 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9881 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9882 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9884 mono_mb_emit_managed_call (mb, method, NULL);
9886 mono_mb_emit_byte (mb, CEE_RET);
9891 def = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
9892 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9894 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
9895 info->d.array_accessor.method = method;
9897 res = mono_mb_create_and_cache_full (cache, method,
9898 mb, sig, sig->param_count + 16,
9907 mono_marshal_alloc (gulong size)
9912 res = CoTaskMemAlloc (size);
9914 res = g_try_malloc ((gulong)size);
9916 mono_gc_out_of_memory ((gulong)size);
9922 mono_marshal_free (gpointer ptr)
9925 CoTaskMemFree (ptr);
9932 mono_marshal_free_array (gpointer *ptr, int size)
9939 for (i = 0; i < size; i++)
9945 mono_marshal_string_to_utf16 (MonoString *s)
9947 return s ? mono_string_chars (s) : NULL;
9951 mono_marshal_string_to_utf16_copy (MonoString *s)
9956 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
9957 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
9958 res [mono_string_length (s)] = 0;
9964 * mono_marshal_set_last_error:
9966 * This function is invoked to set the last error value from a P/Invoke call
9967 * which has SetLastError set.
9970 mono_marshal_set_last_error (void)
9973 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
9975 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
9980 mono_marshal_set_last_error_windows (int error)
9983 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
9988 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
9989 gpointer dest, gint32 length)
9994 MONO_CHECK_ARG_NULL (src,);
9995 MONO_CHECK_ARG_NULL (dest,);
9997 if (src->obj.vtable->klass->rank != 1) {
9998 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10001 if (start_index < 0) {
10002 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10006 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10009 if (start_index + length > mono_array_length (src)) {
10010 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10014 element_size = mono_array_element_size (src->obj.vtable->klass);
10016 /* no references should be involved */
10017 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10019 memcpy (dest, source_addr, length * element_size);
10023 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10024 MonoArray *dest, gint32 length)
10029 MONO_CHECK_ARG_NULL (src,);
10030 MONO_CHECK_ARG_NULL (dest,);
10032 if (dest->obj.vtable->klass->rank != 1) {
10033 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10036 if (start_index < 0) {
10037 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10041 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10044 if (start_index + length > mono_array_length (dest)) {
10045 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10048 element_size = mono_array_element_size (dest->obj.vtable->klass);
10050 /* no references should be involved */
10051 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10053 memcpy (dest_addr, src, length * element_size);
10057 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10062 return mono_string_new (mono_domain_get (), ptr);
10066 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10069 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10072 return mono_string_new_len (mono_domain_get (), ptr, len);
10077 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10079 MonoDomain *domain = mono_domain_get ();
10089 return mono_string_new_utf16 (domain, ptr, len);
10093 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10095 MonoDomain *domain = mono_domain_get ();
10098 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10101 return mono_string_new_utf16 (domain, ptr, len);
10106 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10108 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10112 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10118 MONO_CHECK_ARG_NULL (rtype, 0);
10120 type = rtype->type;
10121 klass = mono_class_from_mono_type (type);
10122 if (!mono_class_init (klass)) {
10123 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10127 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10129 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10130 return sizeof (gpointer);
10131 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10133 MonoException *exc;
10135 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10136 exc = mono_get_exception_argument ("t", msg);
10138 mono_set_pending_exception (exc);
10142 return mono_class_native_size (klass, NULL);
10146 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10148 MonoMethod *method;
10151 MONO_CHECK_ARG_NULL (obj,);
10152 MONO_CHECK_ARG_NULL (dst,);
10154 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10158 pa [2] = &delete_old;
10160 mono_runtime_invoke (method, NULL, pa, NULL);
10164 ptr_to_structure (gpointer src, MonoObject *dst)
10166 MonoMethod *method;
10169 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10174 mono_runtime_invoke (method, NULL, pa, NULL);
10178 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10182 MONO_CHECK_ARG_NULL (src,);
10183 MONO_CHECK_ARG_NULL (dst,);
10185 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10187 if (t->type == MONO_TYPE_VALUETYPE) {
10188 MonoException *exc;
10191 tmp = g_strdup_printf ("Destination is a boxed value type.");
10192 exc = mono_get_exception_argument ("dst", tmp);
10195 mono_set_pending_exception (exc);
10199 ptr_to_structure (src, dst);
10203 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10206 MonoDomain *domain = mono_domain_get ();
10211 MONO_CHECK_ARG_NULL (type, NULL);
10213 klass = mono_class_from_mono_type (type->type);
10214 if (!mono_class_init (klass)) {
10215 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10219 res = mono_object_new (domain, klass);
10221 ptr_to_structure (src, res);
10227 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10229 MonoMarshalType *info;
10232 int match_index = -1;
10234 MONO_CHECK_ARG_NULL (type, 0);
10235 MONO_CHECK_ARG_NULL (field_name, 0);
10237 fname = mono_string_to_utf8 (field_name);
10238 klass = mono_class_from_mono_type (type->type);
10239 if (!mono_class_init (klass)) {
10240 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10244 while (klass && match_index == -1) {
10245 MonoClassField* field;
10247 gpointer iter = NULL;
10248 while ((field = mono_class_get_fields (klass, &iter))) {
10249 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10251 if (!strcmp (fname, mono_field_get_name (field))) {
10258 if (match_index == -1)
10259 klass = klass->parent;
10264 if(match_index == -1) {
10265 MonoException* exc;
10268 /* Get back original class instance */
10269 klass = mono_class_from_mono_type (type->type);
10271 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10272 exc = mono_get_exception_argument ("fieldName", tmp);
10275 mono_set_pending_exception ((MonoException*)exc);
10279 info = mono_marshal_load_type_info (klass);
10280 return info->fields [match_index].offset;
10284 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10289 tres = mono_string_to_utf8 (string);
10293 len = strlen (tres) + 1;
10294 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10295 memcpy (ret, tres, len);
10300 return mono_string_to_utf8 (string);
10305 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10307 if (string == NULL)
10310 #ifdef TARGET_WIN32
10311 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10312 ((mono_string_length (string) + 1) * 2);
10314 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
10316 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10317 res [mono_string_length (string)] = 0;
10323 mono_struct_delete_old (MonoClass *klass, char *ptr)
10325 MonoMarshalType *info;
10328 info = mono_marshal_load_type_info (klass);
10330 for (i = 0; i < info->num_fields; i++) {
10331 MonoMarshalConv conv;
10332 MonoType *ftype = info->fields [i].field->type;
10335 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10338 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10339 klass->unicode, &conv);
10341 cpos = ptr + info->fields [i].offset;
10344 case MONO_MARSHAL_CONV_NONE:
10345 if (MONO_TYPE_ISSTRUCT (ftype)) {
10346 mono_struct_delete_old (ftype->data.klass, cpos);
10350 case MONO_MARSHAL_CONV_STR_LPWSTR:
10351 /* We assume this field points inside a MonoString */
10353 case MONO_MARSHAL_CONV_STR_LPTSTR:
10354 #ifdef TARGET_WIN32
10355 /* We assume this field points inside a MonoString
10359 case MONO_MARSHAL_CONV_STR_LPSTR:
10360 case MONO_MARSHAL_CONV_STR_BSTR:
10361 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10362 case MONO_MARSHAL_CONV_STR_TBSTR:
10363 mono_marshal_free (*(gpointer *)cpos);
10373 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10377 MONO_CHECK_ARG_NULL (src,);
10378 MONO_CHECK_ARG_NULL (type,);
10380 klass = mono_class_from_mono_type (type->type);
10381 if (!mono_class_init (klass)) {
10382 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10386 mono_struct_delete_old (klass, (char *)src);
10390 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
10394 if ((gulong)size == 0)
10395 /* This returns a valid pointer for size 0 on MS.NET */
10399 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
10401 res = g_try_malloc ((gulong)size);
10404 mono_gc_out_of_memory ((gulong)size);
10410 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
10415 mono_gc_out_of_memory ((gulong)size);
10420 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
10422 res = g_try_realloc (ptr, (gulong)size);
10425 mono_gc_out_of_memory ((gulong)size);
10431 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10441 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10446 res = CoTaskMemAlloc (size);
10448 if ((gulong)size == 0)
10449 /* This returns a valid pointer for size 0 on MS.NET */
10452 res = g_try_malloc ((gulong)size);
10455 mono_gc_out_of_memory ((gulong)size);
10460 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10463 CoTaskMemFree (ptr);
10470 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10475 res = CoTaskMemRealloc (ptr, size);
10477 res = g_try_realloc (ptr, (gulong)size);
10480 mono_gc_out_of_memory ((gulong)size);
10485 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10487 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10491 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10493 MonoClass *klass = mono_type_get_class (type->type);
10494 if (!mono_class_init (klass)) {
10495 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10499 return mono_ftnptr_to_delegate (klass, ftn);
10503 * mono_marshal_is_loading_type_info:
10505 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10509 mono_marshal_is_loading_type_info (MonoClass *klass)
10511 GSList *loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10513 return g_slist_find (loads_list, klass) != NULL;
10517 * mono_marshal_load_type_info:
10519 * Initialize klass->marshal_info using information from metadata. This function can
10520 * recursively call itself, and the caller is responsible to avoid that by calling
10521 * mono_marshal_is_loading_type_info () beforehand.
10523 * LOCKING: Acquires the loader lock.
10526 mono_marshal_load_type_info (MonoClass* klass)
10529 guint32 native_size = 0, min_align = 1, packing;
10530 MonoMarshalType *info;
10531 MonoClassField* field;
10534 GSList *loads_list;
10536 g_assert (klass != NULL);
10538 if (klass->marshal_info)
10539 return klass->marshal_info;
10541 if (!klass->inited)
10542 mono_class_init (klass);
10544 if (klass->marshal_info)
10545 return klass->marshal_info;
10548 * This function can recursively call itself, so we keep the list of classes which are
10549 * under initialization in a TLS list.
10551 g_assert (!mono_marshal_is_loading_type_info (klass));
10552 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10553 loads_list = g_slist_prepend (loads_list, klass);
10554 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10557 while ((field = mono_class_get_fields (klass, &iter))) {
10558 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10560 if (mono_field_is_deleted (field))
10565 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10567 /* The mempool is protected by the loader lock */
10568 info = mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
10569 info->num_fields = count;
10571 /* Try to find a size for this type in metadata */
10572 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10574 if (klass->parent) {
10575 int parent_size = mono_class_native_size (klass->parent, NULL);
10577 /* Add parent size to real size */
10578 native_size += parent_size;
10579 info->native_size = parent_size;
10582 packing = klass->packing_size ? klass->packing_size : 8;
10585 while ((field = mono_class_get_fields (klass, &iter))) {
10589 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10592 if (mono_field_is_deleted (field))
10594 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10595 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10596 NULL, NULL, &info->fields [j].mspec);
10598 info->fields [j].field = field;
10600 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10601 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
10602 /* This field is a hack inserted by MCS to empty structures */
10607 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10608 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10609 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10610 &align, TRUE, klass->unicode);
10611 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10612 min_align = MAX (align, min_align);
10613 info->fields [j].offset = info->native_size;
10614 info->fields [j].offset += align - 1;
10615 info->fields [j].offset &= ~(align - 1);
10616 info->native_size = info->fields [j].offset + size;
10618 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10619 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10620 &align, TRUE, klass->unicode);
10621 min_align = MAX (align, min_align);
10622 info->fields [j].offset = field->offset - sizeof (MonoObject);
10623 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10629 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10630 info->native_size = MAX (native_size, info->native_size);
10632 * If the provided Size is equal or larger than the calculated size, and there
10633 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
10635 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
10636 if (native_size && native_size == info->native_size && klass->packing_size == 0)
10639 min_align = MIN (min_align, packing);
10643 if (info->native_size & (min_align - 1)) {
10644 info->native_size += min_align - 1;
10645 info->native_size &= ~(min_align - 1);
10648 info->min_align = min_align;
10650 /* Update the class's blittable info, if the layouts don't match */
10651 if (info->native_size != mono_class_value_size (klass, NULL))
10652 klass->blittable = FALSE;
10654 /* If this is an array type, ensure that we have element info */
10655 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
10656 mono_marshal_load_type_info (klass->element_class);
10659 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
10660 loads_list = g_slist_remove (loads_list, klass);
10661 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10663 mono_marshal_lock ();
10664 if (!klass->marshal_info) {
10665 /*We do double-checking locking on marshal_info */
10666 mono_memory_barrier ();
10667 klass->marshal_info = info;
10669 mono_marshal_unlock ();
10671 return klass->marshal_info;
10675 * mono_class_native_size:
10678 * Returns: the native size of an object instance (when marshaled
10679 * to unmanaged code)
10682 mono_class_native_size (MonoClass *klass, guint32 *align)
10684 if (!klass->marshal_info) {
10685 if (mono_marshal_is_loading_type_info (klass)) {
10690 mono_marshal_load_type_info (klass);
10695 *align = klass->marshal_info->min_align;
10697 return klass->marshal_info->native_size;
10701 * mono_type_native_stack_size:
10702 * @t: the type to return the size it uses on the stack
10704 * Returns: the number of bytes required to hold an instance of this
10705 * type on the native stack
10708 mono_type_native_stack_size (MonoType *t, guint32 *align)
10712 g_assert (t != NULL);
10718 *align = sizeof (gpointer);
10719 return sizeof (gpointer);
10723 case MONO_TYPE_BOOLEAN:
10724 case MONO_TYPE_CHAR:
10735 case MONO_TYPE_STRING:
10736 case MONO_TYPE_OBJECT:
10737 case MONO_TYPE_CLASS:
10738 case MONO_TYPE_SZARRAY:
10739 case MONO_TYPE_PTR:
10740 case MONO_TYPE_FNPTR:
10741 case MONO_TYPE_ARRAY:
10742 *align = sizeof (gpointer);
10743 return sizeof (gpointer);
10748 *align = MONO_ABI_ALIGNOF (double);
10752 *align = MONO_ABI_ALIGNOF (gint64);
10754 case MONO_TYPE_GENERICINST:
10755 if (!mono_type_generic_inst_is_valuetype (t)) {
10756 *align = sizeof (gpointer);
10757 return sizeof (gpointer);
10760 case MONO_TYPE_TYPEDBYREF:
10761 case MONO_TYPE_VALUETYPE: {
10763 MonoClass *klass = mono_class_from_mono_type (t);
10765 if (klass->enumtype)
10766 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
10768 size = mono_class_native_size (klass, align);
10769 *align = *align + 3;
10779 g_error ("type 0x%02x unknown", t->type);
10785 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
10786 gboolean as_field, gboolean unicode)
10788 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
10791 switch (native_type) {
10792 case MONO_NATIVE_BOOLEAN:
10795 case MONO_NATIVE_I1:
10796 case MONO_NATIVE_U1:
10799 case MONO_NATIVE_I2:
10800 case MONO_NATIVE_U2:
10801 case MONO_NATIVE_VARIANTBOOL:
10804 case MONO_NATIVE_I4:
10805 case MONO_NATIVE_U4:
10806 case MONO_NATIVE_ERROR:
10809 case MONO_NATIVE_I8:
10810 case MONO_NATIVE_U8:
10811 *align = MONO_ABI_ALIGNOF (gint64);
10813 case MONO_NATIVE_R4:
10816 case MONO_NATIVE_R8:
10817 *align = MONO_ABI_ALIGNOF (double);
10819 case MONO_NATIVE_INT:
10820 case MONO_NATIVE_UINT:
10821 case MONO_NATIVE_LPSTR:
10822 case MONO_NATIVE_LPWSTR:
10823 case MONO_NATIVE_LPTSTR:
10824 case MONO_NATIVE_BSTR:
10825 case MONO_NATIVE_ANSIBSTR:
10826 case MONO_NATIVE_TBSTR:
10827 case MONO_NATIVE_LPARRAY:
10828 case MONO_NATIVE_SAFEARRAY:
10829 case MONO_NATIVE_IUNKNOWN:
10830 case MONO_NATIVE_IDISPATCH:
10831 case MONO_NATIVE_INTERFACE:
10832 case MONO_NATIVE_ASANY:
10833 case MONO_NATIVE_FUNC:
10834 case MONO_NATIVE_LPSTRUCT:
10835 *align = MONO_ABI_ALIGNOF (gpointer);
10836 return sizeof (gpointer);
10837 case MONO_NATIVE_STRUCT:
10838 klass = mono_class_from_mono_type (type);
10839 if (klass == mono_defaults.object_class &&
10840 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
10844 return mono_class_native_size (klass, align);
10845 case MONO_NATIVE_BYVALTSTR: {
10846 int esize = unicode ? 2: 1;
10849 return mspec->data.array_data.num_elem * esize;
10851 case MONO_NATIVE_BYVALARRAY: {
10852 // FIXME: Have to consider ArraySubType
10854 klass = mono_class_from_mono_type (type);
10855 if (klass->element_class == mono_defaults.char_class) {
10856 esize = unicode ? 2 : 1;
10859 esize = mono_class_native_size (klass->element_class, align);
10862 return mspec->data.array_data.num_elem * esize;
10864 case MONO_NATIVE_CUSTOM:
10865 *align = sizeof (gpointer);
10866 return sizeof (gpointer);
10868 case MONO_NATIVE_CURRENCY:
10869 case MONO_NATIVE_VBBYREFSTR:
10871 g_error ("native type %02x not implemented", native_type);
10874 g_assert_not_reached ();
10879 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
10887 t = &o->vtable->klass->byval_arg;
10891 case MONO_TYPE_PTR:
10894 case MONO_TYPE_BOOLEAN:
10897 case MONO_TYPE_CHAR:
10902 return mono_object_unbox (o);
10904 case MONO_TYPE_STRING:
10905 switch (string_encoding) {
10906 case MONO_NATIVE_LPWSTR:
10907 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
10909 case MONO_NATIVE_LPSTR:
10910 return mono_string_to_lpstr ((MonoString*)o);
10913 g_warning ("marshaling conversion %d not implemented", string_encoding);
10914 g_assert_not_reached ();
10917 case MONO_TYPE_CLASS:
10918 case MONO_TYPE_VALUETYPE: {
10919 MonoMethod *method;
10922 MonoBoolean delete_old = FALSE;
10924 klass = t->data.klass;
10926 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
10929 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10930 klass->blittable || klass->enumtype))
10931 return mono_object_unbox (o);
10933 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
10935 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10936 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
10940 pa [2] = &delete_old;
10942 mono_runtime_invoke (method, NULL, pa, NULL);
10950 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
10955 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
10963 t = &o->vtable->klass->byval_arg;
10965 case MONO_TYPE_STRING:
10966 switch (string_encoding) {
10967 case MONO_NATIVE_LPWSTR:
10968 case MONO_NATIVE_LPSTR:
10969 mono_marshal_free (ptr);
10972 g_warning ("marshaling conversion %d not implemented", string_encoding);
10973 g_assert_not_reached ();
10976 case MONO_TYPE_CLASS:
10977 case MONO_TYPE_VALUETYPE: {
10978 klass = t->data.klass;
10980 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10981 klass->blittable || klass->enumtype))
10984 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
10985 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
10991 mono_runtime_invoke (method, NULL, pa, NULL);
10994 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10995 mono_struct_delete_old (klass, ptr);
10998 mono_marshal_free (ptr);
11007 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
11009 MonoMethodSignature *sig, *csig;
11010 MonoMethodBuilder *mb;
11015 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11016 mb->method->slot = -1;
11018 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11019 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11021 sig = mono_method_signature (method);
11022 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11023 csig->generic_param_count = 0;
11025 #ifndef DISABLE_JIT
11026 mono_mb_emit_ldarg (mb, 0);
11027 for (i = 0; i < csig->param_count; i++)
11028 mono_mb_emit_ldarg (mb, i + 1);
11029 mono_mb_emit_managed_call (mb, method, NULL);
11030 mono_mb_emit_byte (mb, CEE_RET);
11032 /* We can corlib internal methods */
11033 mb->skip_visibility = TRUE;
11035 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11036 info->d.generic_array_helper.method = method;
11037 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11045 * The mono_win32_compat_* functions are implementations of inline
11046 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11047 * although not exported by kernel32.
11049 * We map the appropiate kernel32 entries to these functions using
11050 * dllmaps declared in the global etc/mono/config.
11054 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11056 if (!dest || !source)
11059 memcpy (dest, source, length);
11063 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11065 memset (dest, fill, length);
11069 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11071 if (!dest || !source)
11074 memmove (dest, source, length);
11078 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11080 memset (dest, 0, length);
11084 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11089 for (i = 0; i < len; ++i)
11093 g_assert (i < len);
11096 while (byte && !(byte & 1))
11098 g_assert (byte == 1);
11101 *bitmask = buf [i];
11105 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11107 MonoMethodBuilder *mb;
11108 MonoMethodSignature *sig, *csig;
11109 MonoExceptionClause *clause;
11114 int i, param_count, sig_size, pos_leave;
11121 klass = method->klass;
11122 image = method->klass->image;
11124 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11127 if ((res = mono_marshal_find_in_cache (cache, method)))
11130 sig = mono_method_signature (method);
11131 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11133 /* add "this" and exception param */
11134 param_count = sig->param_count + sig->hasthis + 1;
11136 /* dup & extend signature */
11137 csig = mono_metadata_signature_alloc (image, param_count);
11138 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11139 memcpy (csig, sig, sig_size);
11140 csig->param_count = param_count;
11143 csig->call_convention = MONO_CALL_DEFAULT;
11145 if (sig->hasthis) {
11147 csig->params [0] = &klass->byval_arg;
11148 /* move params up by one */
11149 for (i = 0; i < sig->param_count; i++)
11150 csig->params [i + 1] = sig->params [i];
11153 /* setup exception param as byref+[out] */
11154 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11155 &mono_defaults.exception_class->byval_arg);
11156 csig->params [param_count - 1]->byref = 1;
11157 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11159 /* convert struct return to object */
11160 if (MONO_TYPE_ISSTRUCT (sig->ret))
11161 csig->ret = &mono_defaults.object_class->byval_arg;
11163 #ifndef DISABLE_JIT
11164 /* local 0 (temp for exception object) */
11165 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11167 /* local 1 (temp for result) */
11168 if (!MONO_TYPE_IS_VOID (sig->ret))
11169 mono_mb_add_local (mb, sig->ret);
11172 /* local 4, the local to be used when calling the reset_blocking funcs */
11173 /* tons of code hardcode 3 to be the return var */
11174 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11177 /* clear exception arg */
11178 mono_mb_emit_ldarg (mb, param_count - 1);
11179 mono_mb_emit_byte (mb, CEE_LDNULL);
11180 mono_mb_emit_byte (mb, CEE_STIND_REF);
11183 /* FIXME this is technically wrong as the callback itself must be executed in gc unsafe context. */
11184 mono_mb_emit_icall (mb, mono_threads_reset_blocking_start);
11185 mono_mb_emit_stloc (mb, coop_gc_var);
11189 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11190 clause->try_offset = mono_mb_get_label (mb);
11192 /* push method's args */
11193 for (i = 0; i < param_count - 1; i++) {
11197 mono_mb_emit_ldarg (mb, i);
11199 /* get the byval type of the param */
11200 klass = mono_class_from_mono_type (csig->params [i]);
11201 type = &klass->byval_arg;
11203 /* unbox struct args */
11204 if (MONO_TYPE_ISSTRUCT (type)) {
11205 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11207 /* byref args & and the "this" arg must remain a ptr.
11208 Otherwise make a copy of the value type */
11209 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11210 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11212 csig->params [i] = &mono_defaults.object_class->byval_arg;
11217 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11218 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11220 mono_mb_emit_op (mb, CEE_CALL, method);
11222 /* save result at local 1 */
11223 if (!MONO_TYPE_IS_VOID (sig->ret))
11224 mono_mb_emit_stloc (mb, 1);
11226 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11229 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11230 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11231 clause->data.catch_class = mono_defaults.object_class;
11233 clause->handler_offset = mono_mb_get_label (mb);
11235 /* store exception at local 0 */
11236 mono_mb_emit_stloc (mb, 0);
11237 mono_mb_emit_ldarg (mb, param_count - 1);
11238 mono_mb_emit_ldloc (mb, 0);
11239 mono_mb_emit_byte (mb, CEE_STIND_REF);
11240 mono_mb_emit_branch (mb, CEE_LEAVE);
11242 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11244 mono_mb_set_clauses (mb, 1, clause);
11246 mono_mb_patch_branch (mb, pos_leave);
11249 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11250 mono_mb_emit_ldloc (mb, 1);
11252 /* box the return value */
11253 if (MONO_TYPE_ISSTRUCT (sig->ret))
11254 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11258 /* XXX merge reset_blocking_end with detach */
11259 mono_mb_emit_ldloc (mb, coop_gc_var);
11260 mono_mb_emit_icall (mb, mono_threads_reset_blocking_end);
11263 mono_mb_emit_byte (mb, CEE_RET);
11266 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11273 * mono_marshal_free_dynamic_wrappers:
11275 * Free wrappers of the dynamic method METHOD.
11278 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11280 MonoImage *image = method->klass->image;
11282 g_assert (method_is_dynamic (method));
11284 /* This could be called during shutdown */
11285 if (marshal_mutex_initialized)
11286 mono_marshal_lock ();
11288 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11289 * they could be shared with other methods ?
11291 if (image->wrapper_caches.runtime_invoke_direct_cache)
11292 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11293 if (image->wrapper_caches.delegate_abstract_invoke_cache)
11294 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11295 // FIXME: Need to clear the caches in other images as well
11296 if (image->delegate_bound_static_invoke_cache)
11297 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11299 if (marshal_mutex_initialized)
11300 mono_marshal_unlock ();