/*
+ * sgen-copy-object.h: This is where objects are copied.
+ *
* Copyright 2001-2003 Ximian, Inc
* Copyright 2003-2010 Novell, Inc.
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * Copyright (C) 2012 Xamarin Inc
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License 2.0 as published by the Free Software Foundation;
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License 2.0 along with this library; if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-extern long long stat_copy_object_called_nursery;
-extern long long stat_objects_copied_nursery;
-extern long long stat_nursery_copy_object_failed_from_space;
-extern long long stat_nursery_copy_object_failed_forwarded;
-extern long long stat_nursery_copy_object_failed_pinned;
+#include "mono/utils/mono-compiler.h"
-extern long long stat_slots_allocated_in_vain;
+extern guint64 stat_copy_object_called_nursery;
+extern guint64 stat_objects_copied_nursery;
+
+extern guint64 stat_nursery_copy_object_failed_from_space;
+extern guint64 stat_nursery_copy_object_failed_forwarded;
+extern guint64 stat_nursery_copy_object_failed_pinned;
+
+extern guint64 stat_slots_allocated_in_vain;
/*
+ * Copies an object and enqueues it if a queue is given.
+ *
* This function can be used even if the vtable of obj is not valid
* anymore, which is the case in the parallel collector.
*/
-static inline void
+static MONO_ALWAYS_INLINE void
par_copy_object_no_checks (char *destination, MonoVTable *vt, void *obj, mword objsize, SgenGrayQueue *queue)
{
-#ifdef __GNUC__
- static const void *copy_labels [] = { &&LAB_0, &&LAB_1, &&LAB_2, &&LAB_3, &&LAB_4, &&LAB_5, &&LAB_6, &&LAB_7, &&LAB_8 };
-#endif
-
SGEN_ASSERT (9, vt->klass->inited, "vtable %p for class %s:%s was not initialized", vt, vt->klass->name_space, vt->klass->name);
SGEN_LOG (9, " (to %p, %s size: %lu)", destination, ((MonoObject*)obj)->vtable->klass->name, (unsigned long)objsize);
binary_protocol_copy (obj, destination, vt, objsize);
+#ifdef ENABLE_DTRACE
if (G_UNLIKELY (MONO_GC_OBJ_MOVED_ENABLED ())) {
int dest_gen = sgen_ptr_in_nursery (destination) ? GENERATION_NURSERY : GENERATION_OLD;
int src_gen = sgen_ptr_in_nursery (obj) ? GENERATION_NURSERY : GENERATION_OLD;
MONO_GC_OBJ_MOVED ((mword)destination, (mword)obj, dest_gen, src_gen, objsize, vt->klass->name_space, vt->klass->name);
}
-
-#ifdef __GNUC__
- if (objsize <= sizeof (gpointer) * 8) {
- mword *dest = (mword*)destination;
- goto *copy_labels [objsize / sizeof (gpointer)];
- LAB_8:
- (dest) [7] = ((mword*)obj) [7];
- LAB_7:
- (dest) [6] = ((mword*)obj) [6];
- LAB_6:
- (dest) [5] = ((mword*)obj) [5];
- LAB_5:
- (dest) [4] = ((mword*)obj) [4];
- LAB_4:
- (dest) [3] = ((mword*)obj) [3];
- LAB_3:
- (dest) [2] = ((mword*)obj) [2];
- LAB_2:
- (dest) [1] = ((mword*)obj) [1];
- LAB_1:
- ;
- LAB_0:
- ;
- } else {
- /*can't trust memcpy doing word copies */
- mono_gc_memmove (destination + sizeof (mword), (char*)obj + sizeof (mword), objsize - sizeof (mword));
- }
-#else
- mono_gc_memmove (destination + sizeof (mword), (char*)obj + sizeof (mword), objsize - sizeof (mword));
#endif
+
+ memcpy (destination + sizeof (mword), (char*)obj + sizeof (mword), objsize - sizeof (mword));
+
/* adjust array->bounds */
SGEN_ASSERT (9, vt->gc_descr, "vtable %p for class %s:%s has no gc descriptor", vt, vt->klass->name_space, vt->klass->name);
obj = destination;
if (queue) {
SGEN_LOG (9, "Enqueuing gray object %p (%s)", obj, sgen_safe_name (obj));
- GRAY_OBJECT_ENQUEUE (queue, obj);
+ GRAY_OBJECT_ENQUEUE (queue, obj, sgen_vtable_get_descriptor (vt));
}
}
/*
* This can return OBJ itself on OOM.
*/
-#ifdef _MSC_VER
-static __declspec(noinline) void*
-#else
-static G_GNUC_UNUSED void* __attribute__((noinline))
-#endif
+static MONO_NEVER_INLINE void*
copy_object_no_checks (void *obj, SgenGrayQueue *queue)
{
MonoVTable *vt = ((MonoObject*)obj)->vtable;
gboolean has_references = SGEN_VTABLE_HAS_REFERENCES (vt);
mword objsize = SGEN_ALIGN_UP (sgen_par_object_get_size (vt, (MonoObject*)obj));
- char *destination = COLLECTOR_SERIAL_ALLOC_FOR_PROMOTION (obj, objsize, has_references);
+ /* FIXME: Does this not mark the newly allocated object? */
+ char *destination = COLLECTOR_SERIAL_ALLOC_FOR_PROMOTION (vt, obj, objsize, has_references);
if (G_UNLIKELY (!destination)) {
+ /* FIXME: Is this path ever tested? */
collector_pin_object (obj, queue);
sgen_set_pinned_from_failed_allocation (objsize);
return obj;
}
- *(MonoVTable**)destination = vt;
- par_copy_object_no_checks (destination, vt, obj, objsize, has_references ? queue : NULL);
+ if (!has_references)
+ queue = NULL;
+
+ par_copy_object_no_checks (destination, vt, obj, objsize, queue);
+ /* FIXME: mark mod union cards if necessary */
/* set the forwarding pointer */
SGEN_FORWARD_OBJECT (obj, destination);
projects / mono.git / blobdiff