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src/cpu/x86/vm/copy_x86.hpp@710a3c8b516e (annotated)
src/cpu/x86/vm/copy_x86.hpp
Tue, 08 Aug 2017 15:57:29 +0800
- author
- aoqi
- date
- Tue, 08 Aug 2017 15:57:29 +0800
- changeset 6876
- 710a3c8b516e
- parent 3156
- f08d439fab8c
- parent 0
- f90c822e73f8
- permissions
- -rw-r--r--
merge
| aoqi@0 | 1 | /* |
| aoqi@0 | 2 | * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. |
| aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| aoqi@0 | 4 | * |
| aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
| aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| aoqi@0 | 7 | * published by the Free Software Foundation. |
| aoqi@0 | 8 | * |
| aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| aoqi@0 | 13 | * accompanied this code). |
| aoqi@0 | 14 | * |
| aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
| aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| aoqi@0 | 18 | * |
| aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
| aoqi@0 | 21 | * questions. |
| aoqi@0 | 22 | * |
| aoqi@0 | 23 | */ |
| aoqi@0 | 24 | |
| aoqi@0 | 25 | #ifndef CPU_X86_VM_COPY_X86_HPP |
| aoqi@0 | 26 | #define CPU_X86_VM_COPY_X86_HPP |
| aoqi@0 | 27 | |
| aoqi@0 | 28 | // Inline functions for memory copy and fill. |
| aoqi@0 | 29 | |
| aoqi@0 | 30 | // Contains inline asm implementations |
| aoqi@0 | 31 | #ifdef TARGET_OS_ARCH_linux_x86 |
| aoqi@0 | 32 | # include "copy_linux_x86.inline.hpp" |
| aoqi@0 | 33 | #endif |
| aoqi@0 | 34 | #ifdef TARGET_OS_ARCH_solaris_x86 |
| aoqi@0 | 35 | # include "copy_solaris_x86.inline.hpp" |
| aoqi@0 | 36 | #endif |
| aoqi@0 | 37 | #ifdef TARGET_OS_ARCH_windows_x86 |
| aoqi@0 | 38 | # include "copy_windows_x86.inline.hpp" |
| aoqi@0 | 39 | #endif |
| aoqi@0 | 40 | #ifdef TARGET_OS_ARCH_bsd_x86 |
| aoqi@0 | 41 | # include "copy_bsd_x86.inline.hpp" |
| aoqi@0 | 42 | #endif |
| aoqi@0 | 43 | |
| aoqi@0 | 44 | |
| aoqi@0 | 45 | static void pd_fill_to_words(HeapWord* tohw, size_t count, juint value) { |
| aoqi@0 | 46 | #ifdef AMD64 |
| aoqi@0 | 47 | julong* to = (julong*) tohw; |
| aoqi@0 | 48 | julong v = ((julong) value << 32) | value; |
| aoqi@0 | 49 | while (count-- > 0) { |
| aoqi@0 | 50 | *to++ = v; |
| aoqi@0 | 51 | } |
| aoqi@0 | 52 | #else |
| aoqi@0 | 53 | juint* to = (juint*)tohw; |
| aoqi@0 | 54 | count *= HeapWordSize / BytesPerInt; |
| aoqi@0 | 55 | while (count-- > 0) { |
| aoqi@0 | 56 | *to++ = value; |
| aoqi@0 | 57 | } |
| aoqi@0 | 58 | #endif // AMD64 |
| aoqi@0 | 59 | } |
| aoqi@0 | 60 | |
| aoqi@0 | 61 | static void pd_fill_to_aligned_words(HeapWord* tohw, size_t count, juint value) { |
| aoqi@0 | 62 | pd_fill_to_words(tohw, count, value); |
| aoqi@0 | 63 | } |
| aoqi@0 | 64 | |
| aoqi@0 | 65 | static void pd_fill_to_bytes(void* to, size_t count, jubyte value) { |
| aoqi@0 | 66 | (void)memset(to, value, count); |
| aoqi@0 | 67 | } |
| aoqi@0 | 68 | |
| aoqi@0 | 69 | static void pd_zero_to_words(HeapWord* tohw, size_t count) { |
| aoqi@0 | 70 | pd_fill_to_words(tohw, count, 0); |
| aoqi@0 | 71 | } |
| aoqi@0 | 72 | |
| aoqi@0 | 73 | static void pd_zero_to_bytes(void* to, size_t count) { |
| aoqi@0 | 74 | (void)memset(to, 0, count); |
| aoqi@0 | 75 | } |
| aoqi@0 | 76 | |
| aoqi@0 | 77 | #endif // CPU_X86_VM_COPY_X86_HPP |
