generic-library/bionic
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

flesh out sysconf(3) and the _POSIX_* constants

Browse Source 
Bug: 17571891
Change-Id: I81036615486bde65969ae5662587fcc88348474e
This commit is contained in:
Yabin Cui
2014-11-19 19:49:14 -08:00
parent 27aa9c5b50
commit 1c19194c9d
5 changed files with 530 additions and 265 deletions
Download Patch File Download Diff File Expand all files Collapse all files

117
libc/include/machine/posix_limits.h
View File

@@ -29,46 +29,129 @@
#ifndef _POSIX_LIMITS_H_
#define _POSIX_LIMITS_H_
/* TODO: complete and check these. */
#define _POSIX2_LINE_MAX 2048
#define _POSIX2_RE_DUP_MAX _POSIX_RE_DUP_MAX
/* Any constant values here other than -1 or 200809L are explicitly specified by POSIX.1-2008. */
/* Keep it sorted. */
#define _POSIX_ADVISORY_INFO -1 /* posix_madvise() not implemented */
#define _POSIX_AIO_LISTIO_MAX 2
#define _POSIX_AIO_MAX 1
#define _POSIX_ARG_MAX 4096
#define _POSIX_ASYNCHRONOUS_IO -1 /* not implemented */
#define _POSIX_BARRIERS -1 /* not implemented */
#define _POSIX_CHILD_MAX 25
#define _POSIX_CHOWN_RESTRICTED 1 /* yes, chown requires appropriate privileges */
#define _POSIX_FSYNC 1 /* fdatasync() supported */
#define _POSIX_JOB_CONTROL 1 /* job control is a Linux feature */
#define _POSIX_CLOCK_SELECTION 200809L
#define _POSIX_CPUTIME -1 /* clock_getcpuclockid() not implemented */
#define _POSIX_DELAYTIMER_MAX 32
#define _POSIX_FSYNC 200809L /* fdatasync() supported */
#define _POSIX_HOST_NAME_MAX 255
#define _POSIX_IPV6 200809L
#define _POSIX_JOB_CONTROL 1 /* job control is a Linux feature */
#define _POSIX_LINK_MAX 8
#define _POSIX_LOGIN_NAME_MAX 9 /* includes trailing NUL */
#define _POSIX_MAPPED_FILES 1 /* mmap-ed files supported */
#define _POSIX_MAPPED_FILES 200809L /* mmap-ed files supported */
#define _POSIX_MAX_CANON 255
#define _POSIX_MAX_INPUT 255
#define _POSIX_MEMLOCK 200809L
#define _POSIX_MEMLOCK_RANGE 200809L
#define _POSIX_MEMORY_PROTECTION 200809L
#define _POSIX_MESSAGE_PASSING -1 /* not implemented */
#define _POSIX_MONOTONIC_CLOCK 0 /* the monotonic clock may be available; ask sysconf */
#define _POSIX_MQ_OPEN_MAX 8
#define _POSIX_MQ_PRIO_MAX 32
#define _POSIX_NAME_MAX 14
#define _POSIX_NGROUPS_MAX 0
#define _POSIX_NGROUPS_MAX 8
#define _POSIX_NO_TRUNC 1 /* very long pathnames generate an error */
#define _POSIX_OPEN_MAX 16
#define _POSIX_OPEN_MAX 20
#define _POSIX_PATH_MAX 256
#define _POSIX_PIPE_BUF 512
#define _POSIX_PRIORITY_SCHEDULING 1 /* priority scheduling is a Linux feature */
#define _POSIX_PRIORITY_SCHEDULING 200809L /* priority scheduling is a Linux feature */
#define _POSIX_PRIORITIZED_IO -1 /* not implemented */
#define _POSIX_RAW_SOCKETS 200809L
#define _POSIX_READER_WRITER_LOCKS 200809L
#define _POSIX_REALTIME_SIGNALS -1 /* for now, this is not supported */
#define _POSIX_REGEXP 1
#define _POSIX_RE_DUP_MAX 255
#define _POSIX_SAVED_IDS 1 /* saved user ids is a Linux feature */
#define _POSIX_SEMAPHORES 200809L
#define _POSIX_SEM_NSEMS_MAX 256
#define _POSIX_SEM_VALUE_MAX 32767
#define _POSIX_SHARED_MEMORY_OBJECTS -1 /* shm_open()/shm_unlink() not implemented */
#define _POSIX_SHELL 1 /* system() supported */
#define _POSIX_SIGQUEUE_MAX 32
#define _POSIX_SPAWN -1 /* not implemented */
#define _POSIX_SPIN_LOCKS -1 /* not implemented */
#define _POSIX_SPORADIC_SERVER -1 /* not implemented */
#define _POSIX_SSIZE_MAX 32767
#define _POSIX_STREAM_MAX 8
#define _POSIX_SYMLINK_MAX 255
#define _POSIX_SYMLOOP_MAX 8
#define _POSIX_SYNCHRONIZED_IO 1 /* synchronized i/o supported */
#define _POSIX_THREAD_PRIO_INHERIT 200112L /* linux feature */
#define _POSIX_THREAD_PRIO_PROTECT 200112L /* linux feature */
#define _POSIX_THREADS 1 /* we support threads */
#define _POSIX_THREAD_STACKADDR 1 /* we support thread stack address */
#define _POSIX_THREAD_STACKSIZE 1 /* we support thread stack size */
#define _POSIX_TIMERS 1 /* Posix timers are supported */
#define _POSIX_SYNCHRONIZED_IO 200809L /* synchronized i/o supported */
#define _POSIX_THREADS 200809L /* we support threads */
#define _POSIX_THREAD_ATTR_STACKADDR 200809L
#define _POSIX_THREAD_ATTR_STACKSIZE 200809L
#define _POSIX_THREAD_CPUTIME 200809L
#define _POSIX_THREAD_DESTRUCTOR_ITERATIONS 4
#define _POSIX_THREAD_KEYS_MAX 128
#define _POSIX_THREAD_PRIORITY_SCHEDULING 200809L
#define _POSIX_THREAD_PRIO_INHERIT 200809L /* linux feature */
#define _POSIX_THREAD_PRIO_PROTECT 200809L /* linux feature */
#define _POSIX_THREAD_PROCESS_SHARED -1 /* not implemented */
#define _POSIX_THREAD_ROBUST_PRIO_INHERIT -1 /* not implemented */
#define _POSIX_THREAD_ROBUST_PRIO_PROTECT -1 /* not implemented */
#define _POSIX_THREAD_SAFE_FUNCTIONS 200809L
#define _POSIX_THREAD_SPORADIC_SERVER -1 /* not implemented */
#define _POSIX_THREAD_THREADS_MAX 64
#define _POSIX_TIMEOUTS 200809L
#define _POSIX_TIMERS 200809L /* Posix timers are supported */
#define _POSIX_TIMER_MAX 32
#define _POSIX_TRACE -1 /* not implemented */
#define _POSIX_TRACE_EVENT_FILTER -1 /* not implemented */
#define _POSIX_TRACE_INHERIT -1 /* not implemented */
#define _POSIX_TRACE_LOG -1 /* not implemented */
#define _POSIX_TRACE_NAME_MAX 8
#define _POSIX_TRACE_SYS_MAX 8
#define _POSIX_TRACE_USER_EVENT_MAX 32
#define _POSIX_TTY_NAME_MAX 9 /* includes trailing NUL */
#define _POSIX_TZNAME_MAX 3
#define _POSIX_TYPED_MEMORY_OBJECTS -1 /* not implemented */
#define _POSIX_TZNAME_MAX 6
#define _POSIX_VDISABLE '\0'
#if defined(__LP64__)
#define _POSIX_V7_ILP32_OFF32 -1
#define _POSIX_V7_ILP32_OFFBIG -1
#define _POSIX_V7_LP64_OFF64 1
#define _POSIX_V7_LPBIG_OFFBIG 1
#else
#define _POSIX_V7_ILP32_OFF32 1
#define _POSIX_V7_ILP32_OFFBIG -1
#define _POSIX_V7_LP64_OFF64 -1
#define _POSIX_V7_LPBIG_OFFBIG -1
#endif
#define _POSIX2_BC_BASE_MAX 99
#define _POSIX2_BC_DIM_MAX 2048
#define _POSIX2_BC_SCALE_MAX 99
#define _POSIX2_BC_STRING_MAX 1000
#define _POSIX2_CHARCLASS_NAME_MAX 14
#define _POSIX2_CHAR_TERM -1 /* not implemented */
#define _POSIX2_COLL_WEIGHTS_MAX 2
#define _POSIX2_C_BIND _POSIX_VERSION
#define _POSIX2_C_DEV -1 /* c dev utilities not implemented */
#define _POSIX2_EXPR_NEST_MAX 32
#define _POSIX2_LINE_MAX 2048
#define _POSIX2_LOCALEDEF -1 /* localedef utilitiy not implemented */
#define _POSIX2_RE_DUP_MAX _POSIX_RE_DUP_MAX
#define _POSIX2_SW_DEV -1 /* software dev utilities not implemented */
#define _POSIX2_UPE -1 /* user portability utilities not implemented */
#define _XOPEN_ENH_I18N -1 /* we don't support internationalization in the C library */
#define _XOPEN_CRYPT -1 /* don't support X/Open Encryption */
#define _XOPEN_IOV_MAX 16
#define _XOPEN_LEGACY -1 /* not support all */
#define _XOPEN_REALTIME -1 /* we don't support all these functions */
#define _XOPEN_REALTIME_THREADS -1 /* same here */
#define _XOPEN_SHM -1
#define _XOPEN_UNIX 1
#endif /* _POSIX_LIMITS_H_ */

28
libc/include/sys/limits.h
View File

@@ -115,31 +115,13 @@
/* Bionic-specific definitions */
#define _POSIX_VERSION 200112L /* Posix C language bindings version */
#define _POSIX_VERSION 200809L /* Posix C language bindings version */
#define _POSIX2_VERSION -1 /* we don't support Posix command-line tools */
#define _POSIX2_C_VERSION _POSIX_VERSION
#define _XOPEN_VERSION 500 /* by Posix definition */
#define _XOPEN_XCU_VERSION -1 /* we don't support command-line utilities */
#define _XOPEN_VERSION 700 /* by Posix definition */
/* tell what we implement legacy stuff when appropriate */
#if _POSIX_VERSION > 0
#define _XOPEN_XPG2 1
#define _XOPEN_XPG3 1
#define _XOPEN_XPG4 1
#define _XOPEN_UNIX 1
#endif
#define _XOPEN_ENH_I18N -1 /* we don't support internationalization in the C library */
#define _XOPEN_CRYPT -1 /* don't support X/Open Encryption */
#define _XOPEN_LEGACY -1 /* don't claim we support these, we have some of them but not all */
#define _XOPEN_REALTIME -1 /* we don't support all these functions */
#define _XOPEN_REALTIME_THREADS -1 /* same here */
#define _POSIX_THREAD_DESTRUCTOR_ITERATIONS 4 /* the minimum mandated by POSIX */
#define PTHREAD_DESTRUCTOR_ITERATIONS _POSIX_THREAD_DESTRUCTOR_ITERATIONS
#define _POSIX_THREAD_KEYS_MAX 128 /* the minimum mandated by POSIX */
#define PTHREAD_KEYS_MAX _POSIX_THREAD_KEYS_MAX
#define _POSIX_THREAD_THREADS_MAX 64 /* the minimum mandated by POSIX */
#define PTHREAD_THREADS_MAX /* bionic has no specific limit */
#define PTHREAD_DESTRUCTOR_ITERATIONS 4 // >= _POSIX_THREAD_DESTRUCTOR_ITERATIONS
#define PTHREAD_KEYS_MAX 128 // >= _POSIX_THREAD_KEYS_MAX
#define PTHREAD_THREADS_MAX 2048 // bionic has no specific limit
#endif

55
libc/include/sys/sysconf.h
View File

@@ -50,7 +50,7 @@ __BEGIN_DECLS
#define _SC_PASS_MAX 0x000c
#define _SC_2_C_BIND 0x000d
#define _SC_2_C_DEV 0x000e
#define _SC_2_C_VERSION 0x000f
#define _SC_2_C_VERSION 0x000f /* Obsolescent in POSIX.1-2008, TODO: remove it. */
#define _SC_2_CHAR_TERM 0x0010
#define _SC_2_FORT_DEV 0x0011
#define _SC_2_FORT_RUN 0x0012
@@ -68,7 +68,7 @@ __BEGIN_DECLS
#define _SC_XOPEN_ENH_I18N 0x001e
#define _SC_XOPEN_SHM 0x001f
#define _SC_XOPEN_VERSION 0x0020
#define _SC_XOPEN_XCU_VERSION 0x0021
#define _SC_XOPEN_XCU_VERSION 0x0021 /* Obsolescent in POSIX.1-2008, TODO: remove it. */
#define _SC_XOPEN_REALTIME 0x0022
#define _SC_XOPEN_REALTIME_THREADS 0x0023
#define _SC_XOPEN_LEGACY 0x0024
@@ -77,10 +77,10 @@ __BEGIN_DECLS
#define _SC_PAGESIZE 0x0027
#define _SC_PAGE_SIZE 0x0028
#define _SC_XOPEN_UNIX 0x0029
#define _SC_XBS5_ILP32_OFF32 0x002a
#define _SC_XBS5_ILP32_OFFBIG 0x002b
#define _SC_XBS5_LP64_OFF64 0x002c
#define _SC_XBS5_LPBIG_OFFBIG 0x002d
#define _SC_XBS5_ILP32_OFF32 0x002a /* Obsolescent in POSIX.1-2008, TODO: remove it. */
#define _SC_XBS5_ILP32_OFFBIG 0x002b /* Obsolescent in POSIX.1-2008, TODO: remove it. */
#define _SC_XBS5_LP64_OFF64 0x002c /* Obsolescent in POSIX.1-2008, TODO: remove it. */
#define _SC_XBS5_LPBIG_OFFBIG 0x002d /* Obsolescent in POSIX.1-2008, TODO: remove it. */
#define _SC_AIO_LISTIO_MAX 0x002e
#define _SC_AIO_MAX 0x002f
#define _SC_AIO_PRIO_DELTA_MAX 0x0030
@@ -129,6 +129,49 @@ __BEGIN_DECLS
#define _SC_AVPHYS_PAGES 0x0063
#define _SC_MONOTONIC_CLOCK 0x0064
#define _SC_2_PBS 0x0065
#define _SC_2_PBS_ACCOUNTING 0x0066
#define _SC_2_PBS_CHECKPOINT 0x0067
#define _SC_2_PBS_LOCATE 0x0068
#define _SC_2_PBS_MESSAGE 0x0069
#define _SC_2_PBS_TRACK 0x006a
#define _SC_ADVISORY_INFO 0x006b
#define _SC_BARRIERS 0x006c
#define _SC_CLOCK_SELECTION 0x006d
#define _SC_CPUTIME 0x006e
#define _SC_HOST_NAME_MAX 0x006f
#define _SC_IPV6 0x0070
#define _SC_RAW_SOCKETS 0x0071
#define _SC_READER_WRITER_LOCKS 0x0072
#define _SC_REGEXP 0x0073
#define _SC_SHELL 0x0074
#define _SC_SPAWN 0x0075
#define _SC_SPIN_LOCKS 0x0076
#define _SC_SPORADIC_SERVER 0x0077
#define _SC_SS_REPL_MAX 0x0078
#define _SC_SYMLOOP_MAX 0x0079
#define _SC_THREAD_CPUTIME 0x007a
#define _SC_THREAD_PROCESS_SHARED 0x007b
#define _SC_THREAD_ROBUST_PRIO_INHERIT 0x007c
#define _SC_THREAD_ROBUST_PRIO_PROTECT 0x007d
#define _SC_THREAD_SPORADIC_SERVER 0x007e
#define _SC_TIMEOUTS 0x007f
#define _SC_TRACE 0x0080
#define _SC_TRACE_EVENT_FILTER 0x0081
#define _SC_TRACE_EVENT_NAME_MAX 0x0082
#define _SC_TRACE_INHERIT 0x0083
#define _SC_TRACE_LOG 0x0084
#define _SC_TRACE_NAME_MAX 0x0085
#define _SC_TRACE_SYS_MAX 0x0086
#define _SC_TRACE_USER_EVENT_MAX 0x0087
#define _SC_TYPED_MEMORY_OBJECTS 0x0088
#define _SC_V7_ILP32_OFF32 0x0089
#define _SC_V7_ILP32_OFFBIG 0x008a
#define _SC_V7_LP64_OFF64 0x008b
#define _SC_V7_LPBIG_OFFBIG 0x008c
#define _SC_XOPEN_STREAMS 0x008d
#define _SC_XOPEN_UUCP 0x008e
long sysconf(int);
__END_DECLS