Mercurial > jdk8-mips64-public > hotspot / annotate
src/cpu/x86/vm/copy_x86.hpp@5d046bf49ce7 (annotated)
src/cpu/x86/vm/copy_x86.hpp
Thu, 14 Apr 2011 13:45:41 -0700
- author
- johnc
- date
- Thu, 14 Apr 2011 13:45:41 -0700
- changeset 2787
- 5d046bf49ce7
- parent 2314
- f95d63e2154a
- child 3156
- f08d439fab8c
- permissions
- -rw-r--r--
Merge
| duke@435 | 1 | /* |
| stefank@2314 | 2 | * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. |
| duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| duke@435 | 4 | * |
| duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
| duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| duke@435 | 7 | * published by the Free Software Foundation. |
| duke@435 | 8 | * |
| duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| duke@435 | 13 | * accompanied this code). |
| duke@435 | 14 | * |
| duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
| duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| duke@435 | 18 | * |
| trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
| trims@1907 | 21 | * questions. |
| duke@435 | 22 | * |
| duke@435 | 23 | */ |
| duke@435 | 24 | |
| stefank@2314 | 25 | #ifndef CPU_X86_VM_COPY_X86_HPP |
| stefank@2314 | 26 | #define CPU_X86_VM_COPY_X86_HPP |
| stefank@2314 | 27 | |
| duke@435 | 28 | // Inline functions for memory copy and fill. |
| duke@435 | 29 | |
| duke@435 | 30 | // Contains inline asm implementations |
| stefank@2314 | 31 | #ifdef TARGET_OS_ARCH_linux_x86 |
| stefank@2314 | 32 | # include "copy_linux_x86.inline.hpp" |
| stefank@2314 | 33 | #endif |
| stefank@2314 | 34 | #ifdef TARGET_OS_ARCH_solaris_x86 |
| stefank@2314 | 35 | # include "copy_solaris_x86.inline.hpp" |
| stefank@2314 | 36 | #endif |
| stefank@2314 | 37 | #ifdef TARGET_OS_ARCH_windows_x86 |
| stefank@2314 | 38 | # include "copy_windows_x86.inline.hpp" |
| stefank@2314 | 39 | #endif |
| stefank@2314 | 40 | |
| duke@435 | 41 | |
| duke@435 | 42 | static void pd_fill_to_words(HeapWord* tohw, size_t count, juint value) { |
| duke@435 | 43 | #ifdef AMD64 |
| duke@435 | 44 | julong* to = (julong*) tohw; |
| duke@435 | 45 | julong v = ((julong) value << 32) | value; |
| duke@435 | 46 | while (count-- > 0) { |
| duke@435 | 47 | *to++ = v; |
| duke@435 | 48 | } |
| duke@435 | 49 | #else |
| duke@435 | 50 | juint* to = (juint*)tohw; |
| duke@435 | 51 | count *= HeapWordSize / BytesPerInt; |
| duke@435 | 52 | while (count-- > 0) { |
| duke@435 | 53 | *to++ = value; |
| duke@435 | 54 | } |
| duke@435 | 55 | #endif // AMD64 |
| duke@435 | 56 | } |
| duke@435 | 57 | |
| duke@435 | 58 | static void pd_fill_to_aligned_words(HeapWord* tohw, size_t count, juint value) { |
| duke@435 | 59 | pd_fill_to_words(tohw, count, value); |
| duke@435 | 60 | } |
| duke@435 | 61 | |
| duke@435 | 62 | static void pd_fill_to_bytes(void* to, size_t count, jubyte value) { |
| duke@435 | 63 | (void)memset(to, value, count); |
| duke@435 | 64 | } |
| duke@435 | 65 | |
| duke@435 | 66 | static void pd_zero_to_words(HeapWord* tohw, size_t count) { |
| duke@435 | 67 | pd_fill_to_words(tohw, count, 0); |
| duke@435 | 68 | } |
| duke@435 | 69 | |
| duke@435 | 70 | static void pd_zero_to_bytes(void* to, size_t count) { |
| duke@435 | 71 | (void)memset(to, 0, count); |
| duke@435 | 72 | } |
| stefank@2314 | 73 | |
| stefank@2314 | 74 | #endif // CPU_X86_VM_COPY_X86_HPP |
