95c56a472b
Co-authored-by: Greg Lewis <glewis@eyesbeyond.com> Co-authored-by: Jung-uk Kim <jkim@freebsd.org> Co-authored-by: Christos Zoulas <christos@zoulas.com> Co-authored-by: Landon Fuller <landonf@plausible.coop> Co-authored-by: The FreeBSD Foundation <board@freebsdfoundation.org> Co-authored-by: Michael Franz <mvfranz@gmail.com> Co-authored-by: Roger Hoover <rhoover@apple.com> Co-authored-by: Alexander Strange <astrange@apple.com> Reviewed-by: kvn, twisti, jrose
78 lines
2.3 KiB
C++
78 lines
2.3 KiB
C++
/*
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* Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#ifndef CPU_X86_VM_COPY_X86_HPP
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#define CPU_X86_VM_COPY_X86_HPP
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// Inline functions for memory copy and fill.
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// Contains inline asm implementations
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#ifdef TARGET_OS_ARCH_linux_x86
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# include "copy_linux_x86.inline.hpp"
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#endif
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#ifdef TARGET_OS_ARCH_solaris_x86
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# include "copy_solaris_x86.inline.hpp"
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#endif
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#ifdef TARGET_OS_ARCH_windows_x86
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# include "copy_windows_x86.inline.hpp"
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#endif
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#ifdef TARGET_OS_ARCH_bsd_x86
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# include "copy_bsd_x86.inline.hpp"
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#endif
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static void pd_fill_to_words(HeapWord* tohw, size_t count, juint value) {
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#ifdef AMD64
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julong* to = (julong*) tohw;
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julong v = ((julong) value << 32) | value;
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while (count-- > 0) {
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*to++ = v;
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}
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#else
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juint* to = (juint*)tohw;
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count *= HeapWordSize / BytesPerInt;
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while (count-- > 0) {
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*to++ = value;
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}
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#endif // AMD64
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}
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static void pd_fill_to_aligned_words(HeapWord* tohw, size_t count, juint value) {
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pd_fill_to_words(tohw, count, value);
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}
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static void pd_fill_to_bytes(void* to, size_t count, jubyte value) {
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(void)memset(to, value, count);
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}
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static void pd_zero_to_words(HeapWord* tohw, size_t count) {
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pd_fill_to_words(tohw, count, 0);
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}
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static void pd_zero_to_bytes(void* to, size_t count) {
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(void)memset(to, 0, count);
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}
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#endif // CPU_X86_VM_COPY_X86_HPP
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