Mercurial > hg > graal-compiler
annotate src/os/solaris/vm/os_solaris.inline.hpp @ 1725:09cdb1e1c77b
Merge
author | trims |
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date | Fri, 20 Aug 2010 04:08:08 -0700 |
parents | c18cbe5936b8 |
children | f95d63e2154a |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2008, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 inline const char* os::file_separator() { return "/"; } | |
26 inline const char* os::line_separator() { return "\n"; } | |
27 inline const char* os::path_separator() { return ":"; } | |
28 | |
29 inline const char* os::jlong_format_specifier() { return "%lld"; } | |
30 inline const char* os::julong_format_specifier() { return "%llu"; } | |
31 | |
32 // File names are case-sensitive on windows only | |
33 inline int os::file_name_strcmp(const char* s1, const char* s2) { | |
34 return strcmp(s1, s2); | |
35 } | |
36 | |
37 inline bool os::uses_stack_guard_pages() { | |
38 return true; | |
39 } | |
40 | |
41 inline bool os::allocate_stack_guard_pages() { | |
42 assert(uses_stack_guard_pages(), "sanity check"); | |
43 int r = thr_main() ; | |
44 guarantee (r == 0 || r == 1, "CR6501650 or CR6493689") ; | |
45 return r; | |
46 } | |
47 | |
48 | |
49 // On Solaris, reservations are made on a page by page basis, nothing to do. | |
50 inline void os::split_reserved_memory(char *base, size_t size, | |
51 size_t split, bool realloc) { | |
52 } | |
53 | |
54 | |
55 // Bang the shadow pages if they need to be touched to be mapped. | |
56 inline void os::bang_stack_shadow_pages() { | |
57 } | |
58 | |
59 inline DIR* os::opendir(const char* dirname) | |
60 { | |
61 assert(dirname != NULL, "just checking"); | |
62 return ::opendir(dirname); | |
63 } | |
64 | |
65 inline int os::readdir_buf_size(const char *path) | |
66 { | |
67 int size = pathconf(path, _PC_NAME_MAX); | |
68 return (size < 0 ? MAXPATHLEN : size) + sizeof(dirent) + 1; | |
69 } | |
70 | |
71 inline struct dirent* os::readdir(DIR* dirp, dirent* dbuf) | |
72 { | |
73 assert(dirp != NULL, "just checking"); | |
74 #if defined(_LP64) || defined(_GNU_SOURCE) | |
75 dirent* p; | |
76 int status; | |
77 | |
78 if((status = ::readdir_r(dirp, dbuf, &p)) != 0) { | |
79 errno = status; | |
80 return NULL; | |
81 } else | |
82 return p; | |
83 #else // defined(_LP64) || defined(_GNU_SOURCE) | |
84 return ::readdir_r(dirp, dbuf); | |
85 #endif // defined(_LP64) || defined(_GNU_SOURCE) | |
86 } | |
87 | |
88 inline int os::closedir(DIR *dirp) | |
89 { | |
90 assert(dirp != NULL, "just checking"); | |
91 return ::closedir(dirp); | |
92 } | |
93 | |
94 ////////////////////////////////////////////////////////////////////////////// | |
95 //////////////////////////////////////////////////////////////////////////////// | |
96 | |
97 // macros for interruptible io and system calls and system call restarting | |
98 | |
99 #define _INTERRUPTIBLE(_setup, _cmd, _result, _thread, _clear, _before, _after, _int_enable) \ | |
100 do { \ | |
101 _setup; \ | |
102 _before; \ | |
103 OSThread* _osthread = _thread->osthread(); \ | |
104 if (_int_enable && _thread->has_last_Java_frame()) { \ | |
105 /* this is java interruptible io stuff */ \ | |
106 if (os::is_interrupted(_thread, _clear)) { \ | |
107 os::Solaris::bump_interrupted_before_count(); \ | |
108 _result = OS_INTRPT; \ | |
109 } else { \ | |
110 /* _cmd always expands to an assignment to _result */ \ | |
111 if ((_cmd) < 0 && errno == EINTR \ | |
112 && os::is_interrupted(_thread, _clear)) { \ | |
113 os::Solaris::bump_interrupted_during_count(); \ | |
114 _result = OS_INTRPT; \ | |
115 } \ | |
116 } \ | |
117 } else { \ | |
118 /* this is normal blocking io stuff */ \ | |
119 _cmd; \ | |
120 } \ | |
121 _after; \ | |
122 } while(false) | |
123 | |
124 // Interruptible io support + restarting of interrupted system calls | |
125 | |
126 #ifndef ASSERT | |
127 | |
128 #define INTERRUPTIBLE(_cmd, _result, _clear) do { \ | |
129 _INTERRUPTIBLE( JavaThread* _thread = (JavaThread*)ThreadLocalStorage::thread(),_result = _cmd, _result, _thread, _clear, , , UseVMInterruptibleIO); \ | |
130 } while((_result == OS_ERR) && (errno == EINTR)) | |
131 | |
132 #else | |
133 | |
134 // This adds an assertion that it is only called from thread_in_native | |
135 // The call overhead is skipped for performance in product mode | |
136 #define INTERRUPTIBLE(_cmd, _result, _clear) do { \ | |
137 _INTERRUPTIBLE(JavaThread* _thread = os::Solaris::setup_interruptible_native(), _result = _cmd, _result, _thread, _clear, , os::Solaris::cleanup_interruptible_native(_thread), UseVMInterruptibleIO ); \ | |
138 } while((_result == OS_ERR) && (errno == EINTR)) | |
139 | |
140 #endif | |
141 | |
142 // Used for calls from _thread_in_vm, not from _thread_in_native | |
143 #define INTERRUPTIBLE_VM(_cmd, _result, _clear) do { \ | |
144 _INTERRUPTIBLE(JavaThread* _thread = os::Solaris::setup_interruptible(), _result = _cmd, _result, _thread, _clear, , os::Solaris::cleanup_interruptible(_thread), UseVMInterruptibleIO ); \ | |
145 } while((_result == OS_ERR) && (errno == EINTR)) | |
146 | |
147 /* Use NORESTART when the system call cannot return EINTR, when something other | |
148 than a system call is being invoked, or when the caller must do EINTR | |
149 handling. */ | |
150 | |
151 #ifndef ASSERT | |
152 | |
153 #define INTERRUPTIBLE_NORESTART(_cmd, _result, _clear) \ | |
154 _INTERRUPTIBLE( JavaThread* _thread = (JavaThread*)ThreadLocalStorage::thread(),_result = _cmd, _result, _thread, _clear, , , UseVMInterruptibleIO) | |
155 | |
156 #else | |
157 | |
158 // This adds an assertion that it is only called from thread_in_native | |
159 // The call overhead is skipped for performance in product mode | |
160 #define INTERRUPTIBLE_NORESTART(_cmd, _result, _clear) \ | |
161 _INTERRUPTIBLE(JavaThread* _thread = os::Solaris::setup_interruptible_native(), _result = _cmd, _result, _thread, _clear, , os::Solaris::cleanup_interruptible_native(_thread), UseVMInterruptibleIO ) | |
162 | |
163 #endif | |
164 | |
165 // Don't attend to UseVMInterruptibleIO. Always allow interruption. | |
166 // Also assumes that it is called from the _thread_blocked state. | |
167 // Used by os_sleep(). | |
168 | |
169 #define INTERRUPTIBLE_NORESTART_VM_ALWAYS(_cmd, _result, _thread, _clear) \ | |
170 _INTERRUPTIBLE(os::Solaris::setup_interruptible_already_blocked(_thread), _result = _cmd, _result, _thread, _clear, , , true ) | |
171 | |
172 #define INTERRUPTIBLE_RETURN_INT(_cmd, _clear) do { \ | |
173 int _result; \ | |
174 do { \ | |
175 INTERRUPTIBLE(_cmd, _result, _clear); \ | |
176 } while((_result == OS_ERR) && (errno == EINTR)); \ | |
177 return _result; \ | |
178 } while(false) | |
179 | |
180 #define INTERRUPTIBLE_RETURN_INT_VM(_cmd, _clear) do { \ | |
181 int _result; \ | |
182 do { \ | |
183 INTERRUPTIBLE_VM(_cmd, _result, _clear); \ | |
184 } while((_result == OS_ERR) && (errno == EINTR)); \ | |
185 return _result; \ | |
186 } while(false) | |
187 | |
188 #define INTERRUPTIBLE_RETURN_INT_NORESTART(_cmd, _clear) do { \ | |
189 int _result; \ | |
190 INTERRUPTIBLE_NORESTART(_cmd, _result, _clear); \ | |
191 return _result; \ | |
192 } while(false) | |
193 | |
194 /* Use the RESTARTABLE macros when interruptible io is not needed */ | |
195 | |
196 #define RESTARTABLE(_cmd, _result) do { \ | |
197 do { \ | |
198 _result = _cmd; \ | |
199 } while((_result == OS_ERR) && (errno == EINTR)); \ | |
200 } while(false) | |
201 | |
202 #define RESTARTABLE_RETURN_INT(_cmd) do { \ | |
203 int _result; \ | |
204 RESTARTABLE(_cmd, _result); \ | |
205 return _result; \ | |
206 } while(false) | |
141 | 207 |
208 inline bool os::numa_has_static_binding() { return false; } | |
209 inline bool os::numa_has_group_homing() { return true; } |