Mercurial > hg > graal-compiler
annotate src/os/linux/vm/os_linux.inline.hpp @ 1926:a1e319b5b13a
Merge
author | trims |
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date | Thu, 11 Nov 2010 23:29:32 -0800 |
parents | c18cbe5936b8 |
children | f95d63e2154a |
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0 | 1 /* |
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2 * Copyright (c) 1999, 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 void* os::thread_local_storage_at(int index) { | |
26 return pthread_getspecific((pthread_key_t)index); | |
27 } | |
28 | |
29 inline const char* os::file_separator() { | |
30 return "/"; | |
31 } | |
32 | |
33 inline const char* os::line_separator() { | |
34 return "\n"; | |
35 } | |
36 | |
37 inline const char* os::path_separator() { | |
38 return ":"; | |
39 } | |
40 | |
41 inline const char* os::jlong_format_specifier() { | |
42 return "%lld"; | |
43 } | |
44 | |
45 inline const char* os::julong_format_specifier() { | |
46 return "%llu"; | |
47 } | |
48 | |
49 // File names are case-sensitive on windows only | |
50 inline int os::file_name_strcmp(const char* s1, const char* s2) { | |
51 return strcmp(s1, s2); | |
52 } | |
53 | |
54 inline bool os::obsolete_option(const JavaVMOption *option) { | |
55 return false; | |
56 } | |
57 | |
58 inline bool os::uses_stack_guard_pages() { | |
59 return true; | |
60 } | |
61 | |
62 inline bool os::allocate_stack_guard_pages() { | |
63 assert(uses_stack_guard_pages(), "sanity check"); | |
64 return true; | |
65 } | |
66 | |
67 | |
68 // On Linux, reservations are made on a page by page basis, nothing to do. | |
69 inline void os::split_reserved_memory(char *base, size_t size, | |
70 size_t split, bool realloc) { | |
71 } | |
72 | |
73 | |
74 // Bang the shadow pages if they need to be touched to be mapped. | |
75 inline void os::bang_stack_shadow_pages() { | |
76 } | |
77 | |
78 inline DIR* os::opendir(const char* dirname) | |
79 { | |
80 assert(dirname != NULL, "just checking"); | |
81 return ::opendir(dirname); | |
82 } | |
83 | |
84 inline int os::readdir_buf_size(const char *path) | |
85 { | |
86 return NAME_MAX + sizeof(dirent) + 1; | |
87 } | |
88 | |
89 inline struct dirent* os::readdir(DIR* dirp, dirent *dbuf) | |
90 { | |
91 dirent* p; | |
92 int status; | |
93 assert(dirp != NULL, "just checking"); | |
94 | |
95 // NOTE: Linux readdir_r (on RH 6.2 and 7.2 at least) is NOT like the POSIX | |
96 // version. Here is the doc for this function: | |
97 // http://www.gnu.org/manual/glibc-2.2.3/html_node/libc_262.html | |
98 | |
99 if((status = ::readdir_r(dirp, dbuf, &p)) != 0) { | |
100 errno = status; | |
101 return NULL; | |
102 } else | |
103 return p; | |
104 } | |
105 | |
106 inline int os::closedir(DIR *dirp) | |
107 { | |
108 assert(dirp != NULL, "just checking"); | |
109 return ::closedir(dirp); | |
110 } | |
111 | |
112 // macros for restartable system calls | |
113 | |
114 #define RESTARTABLE(_cmd, _result) do { \ | |
115 _result = _cmd; \ | |
116 } while(((int)_result == OS_ERR) && (errno == EINTR)) | |
117 | |
118 #define RESTARTABLE_RETURN_INT(_cmd) do { \ | |
119 int _result; \ | |
120 RESTARTABLE(_cmd, _result); \ | |
121 return _result; \ | |
122 } while(false) | |
141 | 123 |
124 inline bool os::numa_has_static_binding() { return true; } | |
125 inline bool os::numa_has_group_homing() { return false; } |