Mercurial > hg > truffle
view src/os/linux/vm/os_linux.inline.hpp @ 1378:9f5b60a14736
6939930: exception unwind changes in 6919934 hurts compilation speed
Reviewed-by: twisti
author | never |
---|---|
date | Thu, 15 Apr 2010 18:14:49 -0700 |
parents | d1605aabd0a1 |
children | c18cbe5936b8 |
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/* * Copyright 1999-2008 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 void* os::thread_local_storage_at(int index) { return pthread_getspecific((pthread_key_t)index); } inline const char* os::file_separator() { return "/"; } inline const char* os::line_separator() { return "\n"; } inline const char* os::path_separator() { return ":"; } inline const char* os::jlong_format_specifier() { return "%lld"; } inline const char* os::julong_format_specifier() { return "%llu"; } // File names are case-sensitive on windows only inline int os::file_name_strcmp(const char* s1, const char* s2) { return strcmp(s1, s2); } inline bool os::obsolete_option(const JavaVMOption *option) { return false; } inline bool os::uses_stack_guard_pages() { return true; } inline bool os::allocate_stack_guard_pages() { assert(uses_stack_guard_pages(), "sanity check"); return true; } // On Linux, reservations are made on a page by page basis, nothing to do. inline void os::split_reserved_memory(char *base, size_t size, size_t split, bool realloc) { } // Bang the shadow pages if they need to be touched to be mapped. inline void os::bang_stack_shadow_pages() { } inline DIR* os::opendir(const char* dirname) { assert(dirname != NULL, "just checking"); return ::opendir(dirname); } inline int os::readdir_buf_size(const char *path) { return NAME_MAX + sizeof(dirent) + 1; } inline struct dirent* os::readdir(DIR* dirp, dirent *dbuf) { dirent* p; int status; assert(dirp != NULL, "just checking"); // NOTE: Linux readdir_r (on RH 6.2 and 7.2 at least) is NOT like the POSIX // version. Here is the doc for this function: // http://www.gnu.org/manual/glibc-2.2.3/html_node/libc_262.html if((status = ::readdir_r(dirp, dbuf, &p)) != 0) { errno = status; return NULL; } else return p; } inline int os::closedir(DIR *dirp) { assert(dirp != NULL, "just checking"); return ::closedir(dirp); } // macros for restartable system calls #define RESTARTABLE(_cmd, _result) do { \ _result = _cmd; \ } while(((int)_result == OS_ERR) && (errno == EINTR)) #define RESTARTABLE_RETURN_INT(_cmd) do { \ int _result; \ RESTARTABLE(_cmd, _result); \ return _result; \ } while(false) inline bool os::numa_has_static_binding() { return true; } inline bool os::numa_has_group_homing() { return false; }