61 lines
1.9 KiB
C++
61 lines
1.9 KiB
C++
|
/*
|
||
|
|
* Copyright 2003-2004 Sun Microsystems, Inc. All Rights Reserved.
|
||
|
|
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
||
|
|
*
|
||
|
|
* This code is free software; you can redistribute it and/or modify it
|
||
|
|
* under the terms of the GNU General Public License version 2 only, as
|
||
|
|
* published by the Free Software Foundation.
|
||
|
|
*
|
||
|
|
* This code 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 General Public License
|
||
|
|
* version 2 for more details (a copy is included in the LICENSE file that
|
||
|
|
* accompanied this code).
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License version
|
||
|
|
* 2 along with this work; if not, write to the Free Software Foundation,
|
||
|
|
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
||
|
|
*
|
||
|
|
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
|
||
|
|
* CA 95054 USA or visit www.sun.com if you need additional information or
|
||
|
|
* have any questions.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
// Inline functions for memory copy and fill.
|
||
|
|
|
||
|
|
// Contains inline asm implementations
|
||
|
|
#include "incls/_copy_pd.inline.hpp.incl"
|
||
|
|
|
||
|
|
static void pd_fill_to_words(HeapWord* tohw, size_t count, juint value) {
|
||
|
|
#ifdef AMD64
|
||
|
|
julong* to = (julong*) tohw;
|
||
|
|
julong v = ((julong) value << 32) | value;
|
||
|
|
while (count-- > 0) {
|
||
|
|
*to++ = v;
|
||
|
|
}
|
||
|
|
#else
|
||
|
|
juint* to = (juint*)tohw;
|
||
|
|
count *= HeapWordSize / BytesPerInt;
|
||
|
|
while (count-- > 0) {
|
||
|
|
*to++ = value;
|
||
|
|
}
|
||
|
|
#endif // AMD64
|
||
|
|
}
|
||
|
|
|
||
|
|
static void pd_fill_to_aligned_words(HeapWord* tohw, size_t count, juint value) {
|
||
|
|
pd_fill_to_words(tohw, count, value);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void pd_fill_to_bytes(void* to, size_t count, jubyte value) {
|
||
|
|
(void)memset(to, value, count);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void pd_zero_to_words(HeapWord* tohw, size_t count) {
|
||
|
|
pd_fill_to_words(tohw, count, 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void pd_zero_to_bytes(void* to, size_t count) {
|
||
|
|
(void)memset(to, 0, count);
|
||
|
|
}
|