Mercurial > jdk8-mips64-public > hotspot / annotate
src/os_cpu/linux_x86/vm/os_linux_x86.hpp@7ab5f6318694 (annotated)
src/os_cpu/linux_x86/vm/os_linux_x86.hpp
Sun, 01 Jan 2012 11:17:59 -0500
- author
- phh
- date
- Sun, 01 Jan 2012 11:17:59 -0500
- changeset 3378
- 7ab5f6318694
- parent 2314
- f95d63e2154a
- child 4153
- b9a9ed0f8eeb
- permissions
- -rw-r--r--
7125934: Add a fast unordered timestamp capability to Hotspot on x86/x64
Summary: Add rdtsc detection and inline generation.
Reviewed-by: kamg, dholmes
Contributed-by: karen.kinnear@oracle.com
| duke@435 | 1 | /* |
| phh@3378 | 2 | * Copyright (c) 1999, 2011, 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 OS_CPU_LINUX_X86_VM_OS_LINUX_X86_HPP |
| stefank@2314 | 26 | #define OS_CPU_LINUX_X86_VM_OS_LINUX_X86_HPP |
| stefank@2314 | 27 | |
| duke@435 | 28 | static void setup_fpu(); |
| duke@435 | 29 | static bool supports_sse(); |
| duke@435 | 30 | |
| phh@3378 | 31 | static jlong rdtsc(); |
| phh@3378 | 32 | |
| duke@435 | 33 | static bool is_allocatable(size_t bytes); |
| duke@435 | 34 | |
| duke@435 | 35 | // Used to register dynamic code cache area with the OS |
| duke@435 | 36 | // Note: Currently only used in 64 bit Windows implementations |
| duke@435 | 37 | static bool register_code_area(char *low, char *high) { return true; } |
| stefank@2314 | 38 | |
| stefank@2314 | 39 | #endif // OS_CPU_LINUX_X86_VM_OS_LINUX_X86_HPP |
