Thu, 04 Apr 2013 10:01:26 -0700
8003310: Enable -Wunused-function when compiling with gcc
Summary: Add the -Wunused-function flag and remove a number of unused functions.
Reviewed-by: dholmes, coleenp, kvn
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 */
25 #ifndef OS_SOLARIS_VM_OS_SOLARIS_INLINE_HPP
26 #define OS_SOLARIS_VM_OS_SOLARIS_INLINE_HPP
28 #include "runtime/atomic.inline.hpp"
29 #include "runtime/os.hpp"
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
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>
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 ":"; }
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 }
57 inline bool os::uses_stack_guard_pages() {
58 return true;
59 }
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 }
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 }
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); }
80 inline DIR* os::opendir(const char* dirname) {
81 assert(dirname != NULL, "just checking");
82 return ::opendir(dirname);
83 }
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 }
90 inline struct dirent* os::readdir(DIR* dirp, dirent* dbuf) {
91 assert(dirp != NULL, "just checking");
92 #if defined(_LP64) || defined(_GNU_SOURCE)
93 dirent* p;
94 int status;
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)
102 return ::readdir_r(dirp, dbuf);
103 #endif // defined(_LP64) || defined(_GNU_SOURCE)
104 }
106 inline int os::closedir(DIR *dirp) {
107 assert(dirp != NULL, "argument is NULL");
108 return ::closedir(dirp);
109 }
111 //////////////////////////////////////////////////////////////////////////////
112 ////////////////////////////////////////////////////////////////////////////////
114 // macros for interruptible io and system calls and system call restarting
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)
141 // Interruptible io support + restarting of interrupted system calls
143 #ifndef ASSERT
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))
149 #else
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))
157 #endif
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))
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. */
168 #ifndef ASSERT
170 #define INTERRUPTIBLE_NORESTART(_cmd, _result, _clear) \
171 _INTERRUPTIBLE( JavaThread* _thread = (JavaThread*)ThreadLocalStorage::thread(),_result = _cmd, _result, _thread, _clear, , , UseVMInterruptibleIO)
173 #else
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 )
180 #endif
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().
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 )
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)
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)
205 #define INTERRUPTIBLE_RETURN_INT_NORESTART(_cmd, _clear) do { \
206 int _result; \
207 INTERRUPTIBLE_NORESTART(_cmd, _result, _clear); \
208 return _result; \
209 } while(false)
211 /* Use the RESTARTABLE macros when interruptible io is not needed */
213 #define RESTARTABLE(_cmd, _result) do { \
214 do { \
215 _result = _cmd; \
216 } while((_result == OS_ERR) && (errno == EINTR)); \
217 } while(false)
219 #define RESTARTABLE_RETURN_INT(_cmd) do { \
220 int _result; \
221 RESTARTABLE(_cmd, _result); \
222 return _result; \
223 } while(false)
225 inline bool os::numa_has_static_binding() { return false; }
226 inline bool os::numa_has_group_homing() { return true; }
228 inline int os::socket(int domain, int type, int protocol) {
229 return ::socket(domain, type, protocol);
230 }
232 inline int os::listen(int fd, int count) {
233 if (fd < 0) return OS_ERR;
235 return ::listen(fd, count);
236 }
238 inline int os::socket_shutdown(int fd, int howto){
239 return ::shutdown(fd, howto);
240 }
242 inline int os::get_sock_name(int fd, struct sockaddr* him, socklen_t* len){
243 return ::getsockname(fd, him, len);
244 }
246 inline int os::get_host_name(char* name, int namelen){
247 return ::gethostname(name, namelen);
248 }
250 inline struct hostent* os::get_host_by_name(char* name) {
251 return ::gethostbyname(name);
252 }
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 }
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