1 /* 2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef OS_SOLARIS_VM_OS_SOLARIS_INLINE_HPP 26 #define OS_SOLARIS_VM_OS_SOLARIS_INLINE_HPP 27 28 #include "runtime/atomic.inline.hpp" 29 #include "runtime/os.hpp" 30 31 #ifdef TARGET_OS_ARCH_solaris_x86 32 # include "orderAccess_solaris_x86.inline.hpp" 33 #endif 34 #ifdef TARGET_OS_ARCH_solaris_sparc 35 # include "orderAccess_solaris_sparc.inline.hpp" 36 #endif 37 38 // System includes 39 #include <sys/param.h> 40 #include <dlfcn.h> 41 #include <sys/socket.h> 42 #include <sys/poll.h> 43 #include <sys/filio.h> 44 #include <unistd.h> 45 #include <netdb.h> 46 #include <setjmp.h> 47 48 inline const char* os::file_separator() { return "/"; } 49 inline const char* os::line_separator() { return "\n"; } 50 inline const char* os::path_separator() { return ":"; } 51 52 // File names are case-sensitive on windows only 53 inline int os::file_name_strcmp(const char* s1, const char* s2) { 54 return strcmp(s1, s2); 55 } 56 57 inline bool os::uses_stack_guard_pages() { 58 return true; 59 } 60 61 inline bool os::allocate_stack_guard_pages() { 62 assert(uses_stack_guard_pages(), "sanity check"); 63 int r = thr_main() ; 64 guarantee (r == 0 || r == 1, "CR6501650 or CR6493689") ; 65 return r; 66 } 67 68 69 // On Solaris, reservations are made on a page by page basis, nothing to do. 70 inline void os::pd_split_reserved_memory(char *base, size_t size, 71 size_t split, bool realloc) { 72 } 73 74 75 // Bang the shadow pages if they need to be touched to be mapped. 76 inline void os::bang_stack_shadow_pages() { 77 } 78 inline void os::dll_unload(void *lib) { ::dlclose(lib); } 79 80 inline DIR* os::opendir(const char* dirname) { 81 assert(dirname != NULL, "just checking"); 82 return ::opendir(dirname); 83 } 84 85 inline int os::readdir_buf_size(const char *path) { 86 int size = pathconf(path, _PC_NAME_MAX); 87 return (size < 0 ? MAXPATHLEN : size) + sizeof(dirent) + 1; 88 } 89 90 inline struct dirent* os::readdir(DIR* dirp, dirent* dbuf) { 91 assert(dirp != NULL, "just checking"); 92 #if defined(_LP64) || defined(_GNU_SOURCE) || _FILE_OFFSET_BITS==64 93 dirent* p; 94 int status; 95 96 if((status = ::readdir_r(dirp, dbuf, &p)) != 0) { 97 errno = status; 98 return NULL; 99 } else 100 return p; 101 #else // defined(_LP64) || defined(_GNU_SOURCE) || _FILE_OFFSET_BITS==64 102 return ::readdir_r(dirp, dbuf); 103 #endif // defined(_LP64) || defined(_GNU_SOURCE) || _FILE_OFFSET_BITS==64 104 } 105 106 inline int os::closedir(DIR *dirp) { 107 assert(dirp != NULL, "argument is NULL"); 108 return ::closedir(dirp); 109 } 110 111 ////////////////////////////////////////////////////////////////////////////// 112 //////////////////////////////////////////////////////////////////////////////// 113 114 // macros for interruptible io and system calls and system call restarting 115 116 #define _INTERRUPTIBLE(_setup, _cmd, _result, _thread, _clear, _before, _after, _int_enable) \ 117 do { \ 118 _setup; \ 119 _before; \ 120 OSThread* _osthread = _thread->osthread(); \ 121 if (_int_enable && _thread->has_last_Java_frame()) { \ 122 /* this is java interruptible io stuff */ \ 123 if (os::is_interrupted(_thread, _clear)) { \ 124 os::Solaris::bump_interrupted_before_count(); \ 125 _result = OS_INTRPT; \ 126 } else { \ 127 /* _cmd always expands to an assignment to _result */ \ 128 if ((_cmd) < 0 && errno == EINTR \ 129 && os::is_interrupted(_thread, _clear)) { \ 130 os::Solaris::bump_interrupted_during_count(); \ 131 _result = OS_INTRPT; \ 132 } \ 133 } \ 134 } else { \ 135 /* this is normal blocking io stuff */ \ 136 _cmd; \ 137 } \ 138 _after; \ 139 } while(false) 140 141 // Interruptible io support + restarting of interrupted system calls 142 143 #ifndef ASSERT 144 145 #define INTERRUPTIBLE(_cmd, _result, _clear) do { \ 146 _INTERRUPTIBLE( JavaThread* _thread = (JavaThread*)ThreadLocalStorage::thread(),_result = _cmd, _result, _thread, _clear, , , UseVMInterruptibleIO); \ 147 } while((_result == OS_ERR) && (errno == EINTR)) 148 149 #else 150 151 // This adds an assertion that it is only called from thread_in_native 152 // The call overhead is skipped for performance in product mode 153 #define INTERRUPTIBLE(_cmd, _result, _clear) do { \ 154 _INTERRUPTIBLE(JavaThread* _thread = os::Solaris::setup_interruptible_native(), _result = _cmd, _result, _thread, _clear, , os::Solaris::cleanup_interruptible_native(_thread), UseVMInterruptibleIO ); \ 155 } while((_result == OS_ERR) && (errno == EINTR)) 156 157 #endif 158 159 // Used for calls from _thread_in_vm, not from _thread_in_native 160 #define INTERRUPTIBLE_VM(_cmd, _result, _clear) do { \ 161 _INTERRUPTIBLE(JavaThread* _thread = os::Solaris::setup_interruptible(), _result = _cmd, _result, _thread, _clear, , os::Solaris::cleanup_interruptible(_thread), UseVMInterruptibleIO ); \ 162 } while((_result == OS_ERR) && (errno == EINTR)) 163 164 /* Use NORESTART when the system call cannot return EINTR, when something other 165 than a system call is being invoked, or when the caller must do EINTR 166 handling. */ 167 168 #ifndef ASSERT 169 170 #define INTERRUPTIBLE_NORESTART(_cmd, _result, _clear) \ 171 _INTERRUPTIBLE( JavaThread* _thread = (JavaThread*)ThreadLocalStorage::thread(),_result = _cmd, _result, _thread, _clear, , , UseVMInterruptibleIO) 172 173 #else 174 175 // This adds an assertion that it is only called from thread_in_native 176 // The call overhead is skipped for performance in product mode 177 #define INTERRUPTIBLE_NORESTART(_cmd, _result, _clear) \ 178 _INTERRUPTIBLE(JavaThread* _thread = os::Solaris::setup_interruptible_native(), _result = _cmd, _result, _thread, _clear, , os::Solaris::cleanup_interruptible_native(_thread), UseVMInterruptibleIO ) 179 180 #endif 181 182 // Don't attend to UseVMInterruptibleIO. Always allow interruption. 183 // Also assumes that it is called from the _thread_blocked state. 184 // Used by os_sleep(). 185 186 #define INTERRUPTIBLE_NORESTART_VM_ALWAYS(_cmd, _result, _thread, _clear) \ 187 _INTERRUPTIBLE(os::Solaris::setup_interruptible_already_blocked(_thread), _result = _cmd, _result, _thread, _clear, , , true ) 188 189 #define INTERRUPTIBLE_RETURN_INT(_cmd, _clear) do { \ 190 int _result; \ 191 do { \ 192 INTERRUPTIBLE(_cmd, _result, _clear); \ 193 } while((_result == OS_ERR) && (errno == EINTR)); \ 194 return _result; \ 195 } while(false) 196 197 #define INTERRUPTIBLE_RETURN_INT_VM(_cmd, _clear) do { \ 198 int _result; \ 199 do { \ 200 INTERRUPTIBLE_VM(_cmd, _result, _clear); \ 201 } while((_result == OS_ERR) && (errno == EINTR)); \ 202 return _result; \ 203 } while(false) 204 205 #define INTERRUPTIBLE_RETURN_INT_NORESTART(_cmd, _clear) do { \ 206 int _result; \ 207 INTERRUPTIBLE_NORESTART(_cmd, _result, _clear); \ 208 return _result; \ 209 } while(false) 210 211 /* Use the RESTARTABLE macros when interruptible io is not needed */ 212 213 #define RESTARTABLE(_cmd, _result) do { \ 214 do { \ 215 _result = _cmd; \ 216 } while((_result == OS_ERR) && (errno == EINTR)); \ 217 } while(false) 218 219 #define RESTARTABLE_RETURN_INT(_cmd) do { \ 220 int _result; \ 221 RESTARTABLE(_cmd, _result); \ 222 return _result; \ 223 } while(false) 224 225 inline bool os::numa_has_static_binding() { return false; } 226 inline bool os::numa_has_group_homing() { return true; } 227 228 inline int os::socket(int domain, int type, int protocol) { 229 return ::socket(domain, type, protocol); 230 } 231 232 inline int os::listen(int fd, int count) { 233 if (fd < 0) return OS_ERR; 234 235 return ::listen(fd, count); 236 } 237 238 inline int os::socket_shutdown(int fd, int howto){ 239 return ::shutdown(fd, howto); 240 } 241 242 inline int os::get_sock_name(int fd, struct sockaddr* him, socklen_t* len){ 243 return ::getsockname(fd, him, len); 244 } 245 246 inline int os::get_host_name(char* name, int namelen){ 247 return ::gethostname(name, namelen); 248 } 249 250 inline struct hostent* os::get_host_by_name(char* name) { 251 return ::gethostbyname(name); 252 } 253 254 inline int os::get_sock_opt(int fd, int level, int optname, 255 char* optval, socklen_t* optlen) { 256 return ::getsockopt(fd, level, optname, optval, optlen); 257 } 258 259 inline int os::set_sock_opt(int fd, int level, int optname, 260 const char *optval, socklen_t optlen) { 261 return ::setsockopt(fd, level, optname, optval, optlen); 262 } 263 #endif // OS_SOLARIS_VM_OS_SOLARIS_INLINE_HPP