1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/cpu/x86/vm/copy_x86.hpp Wed Apr 27 01:25:04 2016 +0800
1.3 @@ -0,0 +1,77 @@
1.4 +/*
1.5 + * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + *
1.26 + */
1.27 +
1.28 +#ifndef CPU_X86_VM_COPY_X86_HPP
1.29 +#define CPU_X86_VM_COPY_X86_HPP
1.30 +
1.31 +// Inline functions for memory copy and fill.
1.32 +
1.33 +// Contains inline asm implementations
1.34 +#ifdef TARGET_OS_ARCH_linux_x86
1.35 +# include "copy_linux_x86.inline.hpp"
1.36 +#endif
1.37 +#ifdef TARGET_OS_ARCH_solaris_x86
1.38 +# include "copy_solaris_x86.inline.hpp"
1.39 +#endif
1.40 +#ifdef TARGET_OS_ARCH_windows_x86
1.41 +# include "copy_windows_x86.inline.hpp"
1.42 +#endif
1.43 +#ifdef TARGET_OS_ARCH_bsd_x86
1.44 +# include "copy_bsd_x86.inline.hpp"
1.45 +#endif
1.46 +
1.47 +
1.48 +static void pd_fill_to_words(HeapWord* tohw, size_t count, juint value) {
1.49 +#ifdef AMD64
1.50 + julong* to = (julong*) tohw;
1.51 + julong v = ((julong) value << 32) | value;
1.52 + while (count-- > 0) {
1.53 + *to++ = v;
1.54 + }
1.55 +#else
1.56 + juint* to = (juint*)tohw;
1.57 + count *= HeapWordSize / BytesPerInt;
1.58 + while (count-- > 0) {
1.59 + *to++ = value;
1.60 + }
1.61 +#endif // AMD64
1.62 +}
1.63 +
1.64 +static void pd_fill_to_aligned_words(HeapWord* tohw, size_t count, juint value) {
1.65 + pd_fill_to_words(tohw, count, value);
1.66 +}
1.67 +
1.68 +static void pd_fill_to_bytes(void* to, size_t count, jubyte value) {
1.69 + (void)memset(to, value, count);
1.70 +}
1.71 +
1.72 +static void pd_zero_to_words(HeapWord* tohw, size_t count) {
1.73 + pd_fill_to_words(tohw, count, 0);
1.74 +}
1.75 +
1.76 +static void pd_zero_to_bytes(void* to, size_t count) {
1.77 + (void)memset(to, 0, count);
1.78 +}
1.79 +
1.80 +#endif // CPU_X86_VM_COPY_X86_HPP
