1 /* 2 * Copyright (c) 2013, Red Hat Inc. 3 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. 4 * All rights reserved. 5 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 6 * 7 * This code is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License version 2 only, as 9 * published by the Free Software Foundation. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 * 25 */ 26 27 #ifndef CPU_AARCH64_VM_COPY_AARCH64_HPP 28 #define CPU_AARCH64_VM_COPY_AARCH64_HPP 29 30 // Inline functions for memory copy and fill. 31 32 // Contains inline asm implementations 33 #ifdef TARGET_OS_ARCH_linux_aarch64 34 # include "copy_linux_aarch64.inline.hpp" 35 #endif 36 37 38 static void pd_fill_to_words(HeapWord* tohw, size_t count, juint value) { 39 julong* to = (julong*) tohw; 40 julong v = ((julong) value << 32) | value; 41 while (count-- > 0) { 42 *to++ = v; 43 } 44 } 45 46 static void pd_fill_to_aligned_words(HeapWord* tohw, size_t count, juint value) { 47 pd_fill_to_words(tohw, count, value); 48 } 49 50 static void pd_fill_to_bytes(void* to, size_t count, jubyte value) { 51 (void)memset(to, value, count); 52 } 53 54 static void pd_zero_to_words(HeapWord* tohw, size_t count) { 55 pd_fill_to_words(tohw, count, 0); 56 } 57 58 static void pd_zero_to_bytes(void* to, size_t count) { 59 (void)memset(to, 0, count); 60 } 61 62 #endif // CPU_AARCH64_VM_COPY_AARCH64_HPP