sysdeps/unix/sysv/linux/bits/posix_opt.h

   1 /* Define POSIX options for Linux.
   2    Copyright (C) 1996-2024 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 */