flesh out sysconf(3) and the _POSIX_* constants
Bug: 17571891
Change-Id: I81036615486bde65969ae5662587fcc88348474e
diff --git a/libc/include/machine/posix_limits.h b/libc/include/machine/posix_limits.h
index f092731..e5a299b 100644
--- a/libc/include/machine/posix_limits.h
+++ b/libc/include/machine/posix_limits.h
@@ -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_ */
diff --git a/libc/include/sys/limits.h b/libc/include/sys/limits.h
index edb8c47..be79cf3 100644
--- a/libc/include/sys/limits.h
+++ b/libc/include/sys/limits.h
@@ -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
diff --git a/libc/include/sys/sysconf.h b/libc/include/sys/sysconf.h
index 3d058d7..8aa506e 100644
--- a/libc/include/sys/sysconf.h
+++ b/libc/include/sys/sysconf.h
@@ -50,7 +50,7 @@
#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 @@
#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 @@
#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 @@
#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