/* * Copyright (C) 2008 The Android Open Source Project * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #pragma once #include <sys/cdefs.h> /** sysconf() query for the maximum number of bytes of exec() arguments. */ #define _SC_ARG_MAX 0x0000 /** sysconf() query for bc(1) behavior equivalent to _POSIX2_BC_BASE_MAX. */ #define _SC_BC_BASE_MAX 0x0001 /** sysconf() query for bc(1) behavior equivalent to _POSIX2_BC_DIM_MAX. */ #define _SC_BC_DIM_MAX 0x0002 /** sysconf() query for bc(1) behavior equivalent to _POSIX2_BC_SCALE_MAX. */ #define _SC_BC_SCALE_MAX 0x0003 /** sysconf() query for bc(1) behavior equivalent to _POSIX2_BC_STRING_MAX. */ #define _SC_BC_STRING_MAX 0x0004 /** sysconf() query equivalent to RLIMIT_NPROC. */ #define _SC_CHILD_MAX 0x0005 /** sysconf() query equivalent to AT_CLKTCK. */ #define _SC_CLK_TCK 0x0006 /** sysconf() query for collation behavior equivalent to _POSIX2_COLL_WEIGHTS_MAX. */ #define _SC_COLL_WEIGHTS_MAX 0x0007 /** sysconf() query for expr(1) behavior equivalent to _POSIX2_EXPR_NEST_MAX. */ #define _SC_EXPR_NEST_MAX 0x0008 /** sysconf() query for command-line tool behavior equivalent to _POSIX2_LINE_MAX. */ #define _SC_LINE_MAX 0x0009 /** sysconf() query equivalent to NGROUPS_MAX. */ #define _SC_NGROUPS_MAX 0x000a /** sysconf() query equivalent to RLIMIT_NOFILE. */ #define _SC_OPEN_MAX 0x000b /** sysconf() query equivalent to PASS_MAX. */ #define _SC_PASS_MAX 0x000c /** sysconf() query equivalent to _POSIX2_C_BIND. */ #define _SC_2_C_BIND 0x000d /** sysconf() query equivalent to _POSIX2_C_DEV. */ #define _SC_2_C_DEV 0x000e /** Obsolescent in POSIX.1-2008. */ #define _SC_2_C_VERSION 0x000f /** sysconf() query equivalent to _POSIX2_CHAR_TERM. */ #define _SC_2_CHAR_TERM 0x0010 /** sysconf() query equivalent to _POSIX2_FORT_DEV. */ #define _SC_2_FORT_DEV 0x0011 /** sysconf() query equivalent to _POSIX2_FORT_RUN. */ #define _SC_2_FORT_RUN 0x0012 /** sysconf() query equivalent to _POSIX2_LOCALEDEF. */ #define _SC_2_LOCALEDEF 0x0013 /** sysconf() query equivalent to _POSIX2_SW_DEV. */ #define _SC_2_SW_DEV 0x0014 /** sysconf() query equivalent to _POSIX2_UPE. */ #define _SC_2_UPE 0x0015 /** sysconf() query equivalent to _POSIX2_VERSION. */ #define _SC_2_VERSION 0x0016 /** sysconf() query equivalent to _POSIX_JOB_CONTROL. */ #define _SC_JOB_CONTROL 0x0017 /** sysconf() query equivalent to _POSIX_SAVED_IDS. */ #define _SC_SAVED_IDS 0x0018 /** sysconf() query equivalent to _POSIX_VERSION. */ #define _SC_VERSION 0x0019 /** sysconf() query equivalent to _POSIX_RE_DUP_MAX. */ #define _SC_RE_DUP_MAX 0x001a /** sysconf() query equivalent to FOPEN_MAX. */ #define _SC_STREAM_MAX 0x001b /** sysconf() query equivalent to _POSIX_TZNAME_MAX. */ #define _SC_TZNAME_MAX 0x001c /** sysconf() query equivalent to _XOPEN_CRYPT. */ #define _SC_XOPEN_CRYPT 0x001d /** sysconf() query equivalent to _XOPEN_ENH_I18N. */ #define _SC_XOPEN_ENH_I18N 0x001e /** sysconf() query equivalent to _XOPEN_SHM. */ #define _SC_XOPEN_SHM 0x001f /** sysconf() query equivalent to _XOPEN_VERSION. */ #define _SC_XOPEN_VERSION 0x0020 /** Obsolescent in POSIX.1-2008. */ #define _SC_XOPEN_XCU_VERSION 0x0021 /** sysconf() query equivalent to _XOPEN_REALTIME. */ #define _SC_XOPEN_REALTIME 0x0022 /** sysconf() query equivalent to _XOPEN_REALTIME_THREADS. */ #define _SC_XOPEN_REALTIME_THREADS 0x0023 /** sysconf() query equivalent to _XOPEN_LEGACY. */ #define _SC_XOPEN_LEGACY 0x0024 /** sysconf() query for the maximum number of atexit() handlers. Unlimited on Android. */ #define _SC_ATEXIT_MAX 0x0025 /** sysconf() query equivalent to IOV_MAX. */ #define _SC_IOV_MAX 0x0026 /** Same as _SC_IOV_MAX. */ #define _SC_UIO_MAXIOV _SC_IOV_MAX /** Same as _SC_PAGE_SIZE. */ #define _SC_PAGESIZE 0x0027 /** sysconf() query equivalent to getpagesize(). */ #define _SC_PAGE_SIZE 0x0028 /** sysconf() query equivalent to _XOPEN_UNIX. */ #define _SC_XOPEN_UNIX 0x0029 /** Obsolescent in POSIX.1-2008. */ #define _SC_XBS5_ILP32_OFF32 0x002a /** Obsolescent in POSIX.1-2008. */ #define _SC_XBS5_ILP32_OFFBIG 0x002b /** Obsolescent in POSIX.1-2008. */ #define _SC_XBS5_LP64_OFF64 0x002c /** Obsolescent in POSIX.1-2008. */ #define _SC_XBS5_LPBIG_OFFBIG 0x002d /** sysconf() query equivalent to _POSIX_AIO_LISTIO_MAX. */ #define _SC_AIO_LISTIO_MAX 0x002e /** sysconf() query equivalent to _POSIX_AIO_MAX. */ #define _SC_AIO_MAX 0x002f /** Unimplemented on Android. */ #define _SC_AIO_PRIO_DELTA_MAX 0x0030 /** sysconf() query equivalent to _POSIX_DELAYTIMER_MAX. */ #define _SC_DELAYTIMER_MAX 0x0031 /** sysconf() query equivalent to _POSIX_MQ_OPEN_MAX. */ #define _SC_MQ_OPEN_MAX 0x0032 /** sysconf() query equivalent to _POSIX_MQ_PRIO_MAX. */ #define _SC_MQ_PRIO_MAX 0x0033 /** sysconf() query equivalent to RTSIG_MAX. Constant on Android. */ #define _SC_RTSIG_MAX 0x0034 /** sysconf() query equivalent to _POSIX_SEM_NSEMS_MAX. Constant on Android. */ #define _SC_SEM_NSEMS_MAX 0x0035 /** sysconf() query equivalent to SEM_VALUE_MAX. Constant on Android. */ #define _SC_SEM_VALUE_MAX 0x0036 /** sysconf() query equivalent to _POSIX_SIGQUEUE_MAX. */ #define _SC_SIGQUEUE_MAX 0x0037 /** sysconf() query equivalent to _POSIX_TIMER_MAX. */ #define _SC_TIMER_MAX 0x0038 /** sysconf() query equivalent to _POSIX_ASYNCHRONOUS_IO. */ #define _SC_ASYNCHRONOUS_IO 0x0039 /** sysconf() query equivalent to _POSIX_FSYNC. */ #define _SC_FSYNC 0x003a /** sysconf() query equivalent to _POSIX_MAPPED_FILES. */ #define _SC_MAPPED_FILES 0x003b /** sysconf() query equivalent to _POSIX_MEMLOCK. */ #define _SC_MEMLOCK 0x003c /** sysconf() query equivalent to _POSIX_MEMLOCK_RANGE. */ #define _SC_MEMLOCK_RANGE 0x003d /** sysconf() query equivalent to _POSIX_MEMORY_PROTECTION. */ #define _SC_MEMORY_PROTECTION 0x003e /** sysconf() query equivalent to _POSIX_MESSAGE_PASSING. */ #define _SC_MESSAGE_PASSING 0x003f /** sysconf() query equivalent to _POSIX_PRIORITIZED_IO. */ #define _SC_PRIORITIZED_IO 0x0040 /** sysconf() query equivalent to _POSIX_PRIORITY_SCHEDULING. */ #define _SC_PRIORITY_SCHEDULING 0x0041 /** sysconf() query equivalent to _POSIX_REALTIME_SIGNALS. */ #define _SC_REALTIME_SIGNALS 0x0042 /** sysconf() query equivalent to _POSIX_SEMAPHORES. */ #define _SC_SEMAPHORES 0x0043 /** sysconf() query equivalent to _POSIX_SHARED_MEMORY_OBJECTS. */ #define _SC_SHARED_MEMORY_OBJECTS 0x0044 /** sysconf() query equivalent to _POSIX_SYNCHRONIZED_IO. */ #define _SC_SYNCHRONIZED_IO 0x0045 /** sysconf() query equivalent to _POSIX_TIMERS. */ #define _SC_TIMERS 0x0046 /** sysconf() query for an initial size for getgrgid_r() and getgrnam_r() buffers. */ #define _SC_GETGR_R_SIZE_MAX 0x0047 /** sysconf() query for an initial size for getpwuid_r() and getpwnam_r() buffers. */ #define _SC_GETPW_R_SIZE_MAX 0x0048 /** sysconf() query equivalent to LOGIN_NAME_MAX. */ #define _SC_LOGIN_NAME_MAX 0x0049 /** sysconf() query equivalent to PTHREAD_DESTRUCTOR_ITERATIONS. */ #define _SC_THREAD_DESTRUCTOR_ITERATIONS 0x004a /** sysconf() query equivalent to PTHREAD_KEYS_MAX. */ #define _SC_THREAD_KEYS_MAX 0x004b /** sysconf() query equivalent to PTHREAD_STACK_MIN. */ #define _SC_THREAD_STACK_MIN 0x004c /** sysconf() query for a maximum number of threads. Unlimited on Android. */ #define _SC_THREAD_THREADS_MAX 0x004d /** sysconf() query equivalent to TTY_NAME_MAX. */ #define _SC_TTY_NAME_MAX 0x004e /** sysconf() query equivalent to _POSIX_THREADS. */ #define _SC_THREADS 0x004f /** sysconf() query equivalent to _POSIX_THREAD_ATTR_STACKADDR. */ #define _SC_THREAD_ATTR_STACKADDR 0x0050 /** sysconf() query equivalent to _POSIX_THREAD_ATTR_STACKSIZE. */ #define _SC_THREAD_ATTR_STACKSIZE 0x0051 /** sysconf() query equivalent to _POSIX_THREAD_PRIORITY_SCHEDULING. */ #define _SC_THREAD_PRIORITY_SCHEDULING 0x0052 /** sysconf() query equivalent to _POSIX_THREAD_PRIO_INHERIT. */ #define _SC_THREAD_PRIO_INHERIT 0x0053 /** sysconf() query equivalent to _POSIX_THREAD_PRIO_PROTECT. */ #define _SC_THREAD_PRIO_PROTECT 0x0054 /** sysconf() query equivalent to _POSIX_THREAD_SAFE_FUNCTIONS. */ #define _SC_THREAD_SAFE_FUNCTIONS 0x0055 /** sysconf() query equivalent to get_nprocs_conf(). */ #define _SC_NPROCESSORS_CONF 0x0060 /** sysconf() query equivalent to get_nprocs(). */ #define _SC_NPROCESSORS_ONLN 0x0061 /** sysconf() query equivalent to get_phys_pages(). */ #define _SC_PHYS_PAGES 0x0062 /** sysconf() query equivalent to get_avphys_pages(). */ #define _SC_AVPHYS_PAGES 0x0063 /** sysconf() query equivalent to _POSIX_MONOTONIC_CLOCK. */ #define _SC_MONOTONIC_CLOCK 0x0064 /** Obsolescent in POSIX.1-2008. */ #define _SC_2_PBS 0x0065 /** Obsolescent in POSIX.1-2008. */ #define _SC_2_PBS_ACCOUNTING 0x0066 /** Obsolescent in POSIX.1-2008. */ #define _SC_2_PBS_CHECKPOINT 0x0067 /** Obsolescent in POSIX.1-2008. */ #define _SC_2_PBS_LOCATE 0x0068 /** Obsolescent in POSIX.1-2008. */ #define _SC_2_PBS_MESSAGE 0x0069 /** Obsolescent in POSIX.1-2008. */ #define _SC_2_PBS_TRACK 0x006a /** sysconf() query equivalent to _POSIX_ADVISORY_INFO. */ #define _SC_ADVISORY_INFO 0x006b /** sysconf() query equivalent to _POSIX_BARRIERS. */ #define _SC_BARRIERS 0x006c /** sysconf() query equivalent to _POSIX_CLOCK_SELECTION. */ #define _SC_CLOCK_SELECTION 0x006d /** sysconf() query equivalent to _POSIX_CPUTIME. */ #define _SC_CPUTIME 0x006e /** sysconf() query equivalent to _POSIX_HOST_NAME_MAX. */ #define _SC_HOST_NAME_MAX 0x006f /** sysconf() query equivalent to _POSIX_IPV6. */ #define _SC_IPV6 0x0070 /** sysconf() query equivalent to _POSIX_RAW_SOCKETS. */ #define _SC_RAW_SOCKETS 0x0071 /** sysconf() query equivalent to _POSIX_READER_WRITER_LOCKS. */ #define _SC_READER_WRITER_LOCKS 0x0072 /** sysconf() query equivalent to _POSIX_REGEXP. */ #define _SC_REGEXP 0x0073 /** sysconf() query equivalent to _POSIX_SHELL. */ #define _SC_SHELL 0x0074 /** sysconf() query equivalent to _POSIX_SPAWN. */ #define _SC_SPAWN 0x0075 /** sysconf() query equivalent to _POSIX_SPIN_LOCKS. */ #define _SC_SPIN_LOCKS 0x0076 /** sysconf() query equivalent to _POSIX_SPORADIC_SERVER. */ #define _SC_SPORADIC_SERVER 0x0077 /** sysconf() query equivalent to _POSIX_SS_REPL_MAX. */ #define _SC_SS_REPL_MAX 0x0078 /** sysconf() query equivalent to _POSIX_SYMLOOP_MAX. */ #define _SC_SYMLOOP_MAX 0x0079 /** sysconf() query equivalent to _POSIX_THREAD_CPUTIME. */ #define _SC_THREAD_CPUTIME 0x007a /** sysconf() query equivalent to _POSIX_THREAD_PROCESS_SHARED. */ #define _SC_THREAD_PROCESS_SHARED 0x007b /** sysconf() query equivalent to _POSIX_THREAD_ROBUST_PRIO_INHERIT. */ #define _SC_THREAD_ROBUST_PRIO_INHERIT 0x007c /** sysconf() query equivalent to _POSIX_THREAD_ROBUST_PRIO_PROTECT. */ #define _SC_THREAD_ROBUST_PRIO_PROTECT 0x007d /** sysconf() query equivalent to _POSIX_THREAD_SPORADIC_SERVER. */ #define _SC_THREAD_SPORADIC_SERVER 0x007e /** sysconf() query equivalent to _POSIX_TIMEOUTS. */ #define _SC_TIMEOUTS 0x007f /** Unimplemented. */ #define _SC_TRACE 0x0080 /** Unimplemented. */ #define _SC_TRACE_EVENT_FILTER 0x0081 /** Unimplemented. */ #define _SC_TRACE_EVENT_NAME_MAX 0x0082 /** Unimplemented. */ #define _SC_TRACE_INHERIT 0x0083 /** Unimplemented. */ #define _SC_TRACE_LOG 0x0084 /** Unimplemented. */ #define _SC_TRACE_NAME_MAX 0x0085 /** Unimplemented. */ #define _SC_TRACE_SYS_MAX 0x0086 /** Unimplemented. */ #define _SC_TRACE_USER_EVENT_MAX 0x0087 /** sysconf() query equivalent to _POSIX_TYPED_MEMORY_OBJECTS. */ #define _SC_TYPED_MEMORY_OBJECTS 0x0088 /** sysconf() query equivalent to _POSIX_V7_ILP32_OFF32. */ #define _SC_V7_ILP32_OFF32 0x0089 /** sysconf() query equivalent to _POSIX_V7_ILP32_OFFBIG. */ #define _SC_V7_ILP32_OFFBIG 0x008a /** sysconf() query equivalent to _POSIX_V7_ILP64_OFF64. */ #define _SC_V7_LP64_OFF64 0x008b /** sysconf() query equivalent to _POSIX_V7_ILP64_OFFBIG. */ #define _SC_V7_LPBIG_OFFBIG 0x008c /** Unimplemented. */ #define _SC_XOPEN_STREAMS 0x008d /** Meaningless in Android, unsupported in every other libc (but defined by POSIX). */ #define _SC_XOPEN_UUCP 0x008e /** sysconf() query for the L1 instruction cache size. Not available on all architectures. */ #define _SC_LEVEL1_ICACHE_SIZE 0x008f /** sysconf() query for the L1 instruction cache associativity. Not available on all architectures. */ #define _SC_LEVEL1_ICACHE_ASSOC 0x0090 /** sysconf() query for the L1 instruction cache line size. Not available on all architectures. */ #define _SC_LEVEL1_ICACHE_LINESIZE 0x0091 /** sysconf() query for the L1 data cache size. Not available on all architectures. */ #define _SC_LEVEL1_DCACHE_SIZE 0x0092 /** sysconf() query for the L1 data cache associativity. Not available on all architectures. */ #define _SC_LEVEL1_DCACHE_ASSOC 0x0093 /** sysconf() query for the L1 data cache line size. Not available on all architectures. */ #define _SC_LEVEL1_DCACHE_LINESIZE 0x0094 /** sysconf() query for the L2 cache size. Not available on all architectures. */ #define _SC_LEVEL2_CACHE_SIZE 0x0095 /** sysconf() query for the L2 cache associativity. Not available on all architectures. */ #define _SC_LEVEL2_CACHE_ASSOC 0x0096 /** sysconf() query for the L2 cache line size. Not available on all architectures. */ #define _SC_LEVEL2_CACHE_LINESIZE 0x0097 /** sysconf() query for the L3 cache size. Not available on all architectures. */ #define _SC_LEVEL3_CACHE_SIZE 0x0098 /** sysconf() query for the L3 cache associativity. Not available on all architectures. */ #define _SC_LEVEL3_CACHE_ASSOC 0x0099 /** sysconf() query for the L3 cache line size. Not available on all architectures. */ #define _SC_LEVEL3_CACHE_LINESIZE 0x009a /** sysconf() query for the L4 cache size. Not available on all architectures. */ #define _SC_LEVEL4_CACHE_SIZE 0x009b /** sysconf() query for the L4 cache associativity. Not available on all architectures. */ #define _SC_LEVEL4_CACHE_ASSOC 0x009c /** sysconf() query for the L4 cache line size. Not available on all architectures. */ #define _SC_LEVEL4_CACHE_LINESIZE 0x009d __BEGIN_DECLS /** * [sysconf(3)](https://man7.org/linux/man-pages/man3/sysconf.3.html) * gets system configuration at runtime, corresponding to the given * `_SC_` constant. See the man page for details on how to interpret * the results. * * For `_SC_` constants where an equivalent is given, it's cheaper on Android * to go straight to that function call --- sysconf() is just a multiplexer. * This may not be true on other systems, and other systems may not support the * direct function, so sysconf() can be useful for portability, though despite * POSIX's best efforts, the exact set of constants that return useful results * will also vary by system. */ long sysconf(int __name); __END_DECLS