glibc (2.38)
1 /* Define POSIX options for Linux.
2 Copyright (C) 1996-2023 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public License as
7 published by the Free Software Foundation; either version 2.1 of the
8 License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; see the file COPYING.LIB. If
17 not, see <https://www.gnu.org/licenses/>. */
18
19 #ifndef _BITS_POSIX_OPT_H
20 #define _BITS_POSIX_OPT_H 1
21
22 /* Job control is supported. */
23 #define _POSIX_JOB_CONTROL 1
24
25 /* Processes have a saved set-user-ID and a saved set-group-ID. */
26 #define _POSIX_SAVED_IDS 1
27
28 /* Priority scheduling is not supported with the correct semantics,
29 but GNU/Linux applications expect that the corresponding interfaces
30 are available, even though the semantics do not meet the POSIX
31 requirements. See glibc bug 14829. */
32 #define _POSIX_PRIORITY_SCHEDULING 200809L
33
34 /* Synchronizing file data is supported. */
35 #define _POSIX_SYNCHRONIZED_IO 200809L
36
37 /* The fsync function is present. */
38 #define _POSIX_FSYNC 200809L
39
40 /* Mapping of files to memory is supported. */
41 #define _POSIX_MAPPED_FILES 200809L
42
43 /* Locking of all memory is supported. */
44 #define _POSIX_MEMLOCK 200809L
45
46 /* Locking of ranges of memory is supported. */
47 #define _POSIX_MEMLOCK_RANGE 200809L
48
49 /* Setting of memory protections is supported. */
50 #define _POSIX_MEMORY_PROTECTION 200809L
51
52 /* Some filesystems allow all users to change file ownership. */
53 #define _POSIX_CHOWN_RESTRICTED 0
54
55 /* `c_cc' member of 'struct termios' structure can be disabled by
56 using the value _POSIX_VDISABLE. */
57 #define _POSIX_VDISABLE '\0'
58
59 /* Filenames are not silently truncated. */
60 #define _POSIX_NO_TRUNC 1
61
62 /* X/Open realtime support is available. */
63 #define _XOPEN_REALTIME 1
64
65 /* X/Open thread realtime support is available. */
66 #define _XOPEN_REALTIME_THREADS 1
67
68 /* XPG4.2 shared memory is supported. */
69 #define _XOPEN_SHM 1
70
71 /* Tell we have POSIX threads. */
72 #define _POSIX_THREADS 200809L
73
74 /* We have the reentrant functions described in POSIX. */
75 #define _POSIX_REENTRANT_FUNCTIONS 1
76 #define _POSIX_THREAD_SAFE_FUNCTIONS 200809L
77
78 /* We provide priority scheduling for threads. */
79 #define _POSIX_THREAD_PRIORITY_SCHEDULING 200809L
80
81 /* We support user-defined stack sizes. */
82 #define _POSIX_THREAD_ATTR_STACKSIZE 200809L
83
84 /* We support user-defined stacks. */
85 #define _POSIX_THREAD_ATTR_STACKADDR 200809L
86
87 /* We support priority inheritance. */
88 #define _POSIX_THREAD_PRIO_INHERIT 200809L
89
90 /* We support priority protection, though only for non-robust
91 mutexes. */
92 #define _POSIX_THREAD_PRIO_PROTECT 200809L
93
94 #ifdef __USE_XOPEN2K8
95 /* We support priority inheritance for robust mutexes. */
96 # define _POSIX_THREAD_ROBUST_PRIO_INHERIT 200809L
97
98 /* We do not support priority protection for robust mutexes. */
99 # define _POSIX_THREAD_ROBUST_PRIO_PROTECT -1
100 #endif
101
102 /* We support POSIX.1b semaphores. */
103 #define _POSIX_SEMAPHORES 200809L
104
105 /* Real-time signals are supported. */
106 #define _POSIX_REALTIME_SIGNALS 200809L
107
108 /* We support asynchronous I/O. */
109 #define _POSIX_ASYNCHRONOUS_IO 200809L
110 #define _POSIX_ASYNC_IO 1
111 /* Alternative name for Unix98. */
112 #define _LFS_ASYNCHRONOUS_IO 1
113 /* Support for prioritization is also available. */
114 #define _POSIX_PRIORITIZED_IO 200809L
115
116 /* The LFS support in asynchronous I/O is also available. */
117 #define _LFS64_ASYNCHRONOUS_IO 1
118
119 /* The rest of the LFS is also available. */
120 #define _LFS_LARGEFILE 1
121 #define _LFS64_LARGEFILE 1
122 #define _LFS64_STDIO 1
123
124 /* POSIX shared memory objects are implemented. */
125 #define _POSIX_SHARED_MEMORY_OBJECTS 200809L
126
127 /* CPU-time clocks support needs to be checked at runtime. */
128 #define _POSIX_CPUTIME 0
129
130 /* Clock support in threads must be also checked at runtime. */
131 #define _POSIX_THREAD_CPUTIME 0
132
133 /* GNU libc provides regular expression handling. */
134 #define _POSIX_REGEXP 1
135
136 /* Reader/Writer locks are available. */
137 #define _POSIX_READER_WRITER_LOCKS 200809L
138
139 /* We have a POSIX shell. */
140 #define _POSIX_SHELL 1
141
142 /* We support the Timeouts option. */
143 #define _POSIX_TIMEOUTS 200809L
144
145 /* We support spinlocks. */
146 #define _POSIX_SPIN_LOCKS 200809L
147
148 /* The `spawn' function family is supported. */
149 #define _POSIX_SPAWN 200809L
150
151 /* We have POSIX timers. */
152 #define _POSIX_TIMERS 200809L
153
154 /* The barrier functions are available. */
155 #define _POSIX_BARRIERS 200809L
156
157 /* POSIX message queues are available. */
158 #define _POSIX_MESSAGE_PASSING 200809L
159
160 /* Thread process-shared synchronization is supported. */
161 #define _POSIX_THREAD_PROCESS_SHARED 200809L
162
163 /* The monotonic clock might be available. */
164 #define _POSIX_MONOTONIC_CLOCK 0
165
166 /* The clock selection interfaces are available. */
167 #define _POSIX_CLOCK_SELECTION 200809L
168
169 /* Advisory information interfaces are available. */
170 #define _POSIX_ADVISORY_INFO 200809L
171
172 /* IPv6 support is available. */
173 #define _POSIX_IPV6 200809L
174
175 /* Raw socket support is available. */
176 #define _POSIX_RAW_SOCKETS 200809L
177
178 /* We have at least one terminal. */
179 #define _POSIX2_CHAR_TERM 200809L
180
181 /* Neither process nor thread sporadic server interfaces is available. */
182 #define _POSIX_SPORADIC_SERVER -1
183 #define _POSIX_THREAD_SPORADIC_SERVER -1
184
185 /* trace.h is not available. */
186 #define _POSIX_TRACE -1
187 #define _POSIX_TRACE_EVENT_FILTER -1
188 #define _POSIX_TRACE_INHERIT -1
189 #define _POSIX_TRACE_LOG -1
190
191 /* Typed memory objects are not available. */
192 #define _POSIX_TYPED_MEMORY_OBJECTS -1
193
194 #endif /* bits/posix_opt.h */
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