| /* |
| * Copyright 1997-2006 Sun Microsystems, Inc. All Rights Reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| * |
| */ |
| |
| inline const char* os::file_separator() { return "\\"; } |
| inline const char* os::line_separator() { return "\r\n"; } |
| inline const char* os::path_separator() { return ";"; } |
| |
| inline const char* os::jlong_format_specifier() { return "%I64d"; } |
| inline const char* os::julong_format_specifier() { return "%I64u"; } |
| |
| // File names are case-insensitive on windows only |
| inline int os::file_name_strcmp(const char* s, const char* t) { |
| return _stricmp(s, t); |
| } |
| |
| // Used to improve time-sharing on some systems |
| inline void os::loop_breaker(int attempts) {} |
| |
| inline bool os::obsolete_option(const JavaVMOption *option) { |
| return false; |
| } |
| |
| inline bool os::uses_stack_guard_pages() { |
| return os::win32::is_nt(); |
| } |
| |
| inline bool os::allocate_stack_guard_pages() { |
| assert(uses_stack_guard_pages(), "sanity check"); |
| return true; |
| } |
| |
| inline int os::readdir_buf_size(const char *path) |
| { |
| /* As Windows doesn't use the directory entry buffer passed to |
| os::readdir() this can be as short as possible */ |
| |
| return 1; |
| } |
| |
| // Bang the shadow pages if they need to be touched to be mapped. |
| inline void os::bang_stack_shadow_pages() { |
| // Write to each page of our new frame to force OS mapping. |
| // If we decrement stack pointer more than one page |
| // the OS may not map an intervening page into our space |
| // and may fault on a memory access to interior of our frame. |
| address sp = current_stack_pointer(); |
| for (int pages = 1; pages <= StackShadowPages; pages++) { |
| *((int *)(sp - (pages * vm_page_size()))) = 0; |
| } |
| } |