Mercurial > hg > graal-compiler
view src/os/windows/vm/os_windows.inline.hpp @ 0:a61af66fc99e jdk7-b24
Initial load
author | duke |
---|---|
date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | fcbfc50865ab |
line wrap: on
line source
/* * 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; } }