Mercurial > jdk8-mips64-public > hotspot / annotate
src/os/windows/vm/os_windows.inline.hpp@f90c822e73f8 (annotated)
src/os/windows/vm/os_windows.inline.hpp
Wed, 27 Apr 2016 01:25:04 +0800
- author
- aoqi
- date
- Wed, 27 Apr 2016 01:25:04 +0800
- changeset 0
- f90c822e73f8
- child 6876
- 710a3c8b516e
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http://hg.openjdk.java.net/jdk8u/jdk8u/hotspot/
changeset: 6782:28b50d07f6f8
tag: jdk8u25-b17
| aoqi@0 | 1 | /* |
| aoqi@0 | 2 | * Copyright (c) 1997, 2013, 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 OS_WINDOWS_VM_OS_WINDOWS_INLINE_HPP |
| aoqi@0 | 26 | #define OS_WINDOWS_VM_OS_WINDOWS_INLINE_HPP |
| aoqi@0 | 27 | |
| aoqi@0 | 28 | #include "runtime/atomic.inline.hpp" |
| aoqi@0 | 29 | #include "runtime/os.hpp" |
| aoqi@0 | 30 | |
| aoqi@0 | 31 | #ifdef TARGET_OS_ARCH_windows_x86 |
| aoqi@0 | 32 | # include "orderAccess_windows_x86.inline.hpp" |
| aoqi@0 | 33 | #endif |
| aoqi@0 | 34 | |
| aoqi@0 | 35 | inline const char* os::file_separator() { return "\\"; } |
| aoqi@0 | 36 | inline const char* os::line_separator() { return "\r\n"; } |
| aoqi@0 | 37 | inline const char* os::path_separator() { return ";"; } |
| aoqi@0 | 38 | inline const char* os::dll_file_extension() { return ".dll"; } |
| aoqi@0 | 39 | |
| aoqi@0 | 40 | inline const int os::default_file_open_flags() { return O_BINARY | O_NOINHERIT;} |
| aoqi@0 | 41 | |
| aoqi@0 | 42 | // File names are case-insensitive on windows only |
| aoqi@0 | 43 | inline int os::file_name_strcmp(const char* s, const char* t) { |
| aoqi@0 | 44 | return _stricmp(s, t); |
| aoqi@0 | 45 | } |
| aoqi@0 | 46 | |
| aoqi@0 | 47 | inline void os::dll_unload(void *lib) { |
| aoqi@0 | 48 | ::FreeLibrary((HMODULE)lib); |
| aoqi@0 | 49 | } |
| aoqi@0 | 50 | |
| aoqi@0 | 51 | inline void* os::dll_lookup(void *lib, const char *name) { |
| aoqi@0 | 52 | return (void*)::GetProcAddress((HMODULE)lib, name); |
| aoqi@0 | 53 | } |
| aoqi@0 | 54 | |
| aoqi@0 | 55 | // Used to improve time-sharing on some systems |
| aoqi@0 | 56 | inline void os::loop_breaker(int attempts) {} |
| aoqi@0 | 57 | |
| aoqi@0 | 58 | inline bool os::obsolete_option(const JavaVMOption *option) { |
| aoqi@0 | 59 | return false; |
| aoqi@0 | 60 | } |
| aoqi@0 | 61 | |
| aoqi@0 | 62 | inline bool os::uses_stack_guard_pages() { |
| aoqi@0 | 63 | return os::win32::is_nt(); |
| aoqi@0 | 64 | } |
| aoqi@0 | 65 | |
| aoqi@0 | 66 | inline bool os::allocate_stack_guard_pages() { |
| aoqi@0 | 67 | assert(uses_stack_guard_pages(), "sanity check"); |
| aoqi@0 | 68 | return true; |
| aoqi@0 | 69 | } |
| aoqi@0 | 70 | |
| aoqi@0 | 71 | inline int os::readdir_buf_size(const char *path) |
| aoqi@0 | 72 | { |
| aoqi@0 | 73 | /* As Windows doesn't use the directory entry buffer passed to |
| aoqi@0 | 74 | os::readdir() this can be as short as possible */ |
| aoqi@0 | 75 | |
| aoqi@0 | 76 | return 1; |
| aoqi@0 | 77 | } |
| aoqi@0 | 78 | |
| aoqi@0 | 79 | // Bang the shadow pages if they need to be touched to be mapped. |
| aoqi@0 | 80 | inline void os::bang_stack_shadow_pages() { |
| aoqi@0 | 81 | // Write to each page of our new frame to force OS mapping. |
| aoqi@0 | 82 | // If we decrement stack pointer more than one page |
| aoqi@0 | 83 | // the OS may not map an intervening page into our space |
| aoqi@0 | 84 | // and may fault on a memory access to interior of our frame. |
| aoqi@0 | 85 | address sp = current_stack_pointer(); |
| aoqi@0 | 86 | for (int pages = 1; pages <= StackShadowPages; pages++) { |
| aoqi@0 | 87 | *((int *)(sp - (pages * vm_page_size()))) = 0; |
| aoqi@0 | 88 | } |
| aoqi@0 | 89 | } |
| aoqi@0 | 90 | |
| aoqi@0 | 91 | inline bool os::numa_has_static_binding() { return true; } |
| aoqi@0 | 92 | inline bool os::numa_has_group_homing() { return false; } |
| aoqi@0 | 93 | |
| aoqi@0 | 94 | inline size_t os::read(int fd, void *buf, unsigned int nBytes) { |
| aoqi@0 | 95 | return ::read(fd, buf, nBytes); |
| aoqi@0 | 96 | } |
| aoqi@0 | 97 | |
| aoqi@0 | 98 | inline size_t os::restartable_read(int fd, void *buf, unsigned int nBytes) { |
| aoqi@0 | 99 | return ::read(fd, buf, nBytes); |
| aoqi@0 | 100 | } |
| aoqi@0 | 101 | |
| aoqi@0 | 102 | inline size_t os::write(int fd, const void *buf, unsigned int nBytes) { |
| aoqi@0 | 103 | return ::write(fd, buf, nBytes); |
| aoqi@0 | 104 | } |
| aoqi@0 | 105 | |
| aoqi@0 | 106 | inline int os::close(int fd) { |
| aoqi@0 | 107 | return ::close(fd); |
| aoqi@0 | 108 | } |
| aoqi@0 | 109 | |
| aoqi@0 | 110 | #define CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(f) \ |
| aoqi@0 | 111 | os::win32::call_test_func_with_wrapper(f) |
| aoqi@0 | 112 | |
| aoqi@0 | 113 | #endif // OS_WINDOWS_VM_OS_WINDOWS_INLINE_HPP |
