1 /*
2 * Copyright (c) 1997, 2014, 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/orderAccess.inline.hpp"
30 #include "runtime/os.hpp"
31
32 // System includes
33 #include <sys/param.h>
34 #include <dlfcn.h>
35 #include <sys/socket.h>
36 #include <sys/poll.h>
37 #include <sys/filio.h>
38 #include <unistd.h>
39 #include <netdb.h>
40 #include <setjmp.h>
41
42 inline const char* os::file_separator() { return "/"; }
43 inline const char* os::line_separator() { return "\n"; }
44 inline const char* os::path_separator() { return ":"; }
45
46 // File names are case-sensitive on windows only
47 inline int os::file_name_strcmp(const char* s1, const char* s2) {
48 return strcmp(s1, s2);
49 }
50
51 inline bool os::uses_stack_guard_pages() {
52 return true;
53 }
54
55 inline bool os::allocate_stack_guard_pages() {
56 assert(uses_stack_guard_pages(), "sanity check");
57 int r = thr_main() ;
58 guarantee (r == 0 || r == 1, "CR6501650 or CR6493689") ;
59 return r;
60 }
61
62
63 // On Solaris, reservations are made on a page by page basis, nothing to do.
64 inline void os::pd_split_reserved_memory(char *base, size_t size,
65 size_t split, bool realloc) {
66 }
67
68
69 // Bang the shadow pages if they need to be touched to be mapped.
70 inline void os::bang_stack_shadow_pages() {
71 }
72 inline void os::dll_unload(void *lib) { ::dlclose(lib); }
73
74 inline DIR* os::opendir(const char* dirname) {
75 assert(dirname != NULL, "just checking");
76 return ::opendir(dirname);
77 }
78
79 inline int os::readdir_buf_size(const char *path) {
80 int size = pathconf(path, _PC_NAME_MAX);
81 return (size < 0 ? MAXPATHLEN : size) + sizeof(dirent) + 1;
82 }
83
84 inline struct dirent* os::readdir(DIR* dirp, dirent* dbuf) {
85 assert(dirp != NULL, "just checking");
86 #if defined(_LP64) || defined(_GNU_SOURCE) || _FILE_OFFSET_BITS==64
87 dirent* p;
88 int status;
89
90 if((status = ::readdir_r(dirp, dbuf, &p)) != 0) {
91 errno = status;
92 return NULL;
93 } else
94 return p;
95 #else // defined(_LP64) || defined(_GNU_SOURCE) || _FILE_OFFSET_BITS==64
96 return ::readdir_r(dirp, dbuf);
97 #endif // defined(_LP64) || defined(_GNU_SOURCE) || _FILE_OFFSET_BITS==64
98 }
99
100 inline int os::closedir(DIR *dirp) {
101 assert(dirp != NULL, "argument is NULL");
102 return ::closedir(dirp);
103 }
104
105 //////////////////////////////////////////////////////////////////////////////
106 ////////////////////////////////////////////////////////////////////////////////
107
108 // macros for restartable system calls
109
110 #define RESTARTABLE(_cmd, _result) do { \
111 do { \
112 _result = _cmd; \
113 } while((_result == OS_ERR) && (errno == EINTR)); \
114 } while(false)
115
116 #define RESTARTABLE_RETURN_INT(_cmd) do { \
117 int _result; \
118 RESTARTABLE(_cmd, _result); \
119 return _result; \
120 } while(false)
121
122 inline bool os::numa_has_static_binding() { return false; }
123 inline bool os::numa_has_group_homing() { return true; }
124
125 inline int os::socket(int domain, int type, int protocol) {
126 return ::socket(domain, type, protocol);
127 }
128
129 inline int os::listen(int fd, int count) {
130 if (fd < 0) return OS_ERR;
131
132 return ::listen(fd, count);
133 }
134
135 inline int os::socket_shutdown(int fd, int howto){
136 return ::shutdown(fd, howto);
137 }
138
139 inline int os::get_sock_name(int fd, struct sockaddr* him, socklen_t* len){
140 return ::getsockname(fd, him, len);
141 }
142
143 inline int os::get_host_name(char* name, int namelen){
144 return ::gethostname(name, namelen);
145 }
146
147 inline struct hostent* os::get_host_by_name(char* name) {
148 return ::gethostbyname(name);
149 }
150
151 inline int os::get_sock_opt(int fd, int level, int optname,
152 char* optval, socklen_t* optlen) {
153 return ::getsockopt(fd, level, optname, optval, optlen);
154 }
155
156 inline int os::set_sock_opt(int fd, int level, int optname,
157 const char *optval, socklen_t optlen) {
158 return ::setsockopt(fd, level, optname, optval, optlen);
159 }
160
161 inline bool os::supports_monotonic_clock() {
162 // javaTimeNanos() is monotonic on Solaris, see getTimeNanos() comments
163 return true;
164 }
165
166 #endif // OS_SOLARIS_VM_OS_SOLARIS_INLINE_HPP