Move <sys/sysconf.h> to <bits/sysconf.h>.
Also remove unneeded declaration of sysconf in <unistd.h>.
Bug: http://b/28067717
Change-Id: Ife4692e48ca97480e422db0686c61133e1d619aa
diff --git a/libc/include/sys/sysconf.h b/libc/include/sys/sysconf.h
index ca32132..c9895f2 100644
--- a/libc/include/sys/sysconf.h
+++ b/libc/include/sys/sysconf.h
@@ -25,171 +25,9 @@
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
-#ifndef _SYS_SYSCONF_H_
-#define _SYS_SYSCONF_H_
-#include <sys/cdefs.h>
+// This file used to contain the declarations of sysconf and its associated constants.
+// No standard mentions a <sys/sysconf.h>, but there are enough users in vendor (and potential ones
+// in the NDK) to warrant not breaking source compatibility.
-__BEGIN_DECLS
-
-/* as listed by Posix sysconf() description */
-/* most of these will return -1 and ENOSYS */
-
-#define _SC_ARG_MAX 0x0000
-#define _SC_BC_BASE_MAX 0x0001
-#define _SC_BC_DIM_MAX 0x0002
-#define _SC_BC_SCALE_MAX 0x0003
-#define _SC_BC_STRING_MAX 0x0004
-#define _SC_CHILD_MAX 0x0005
-#define _SC_CLK_TCK 0x0006
-#define _SC_COLL_WEIGHTS_MAX 0x0007
-#define _SC_EXPR_NEST_MAX 0x0008
-#define _SC_LINE_MAX 0x0009
-#define _SC_NGROUPS_MAX 0x000a
-#define _SC_OPEN_MAX 0x000b
-#define _SC_PASS_MAX 0x000c
-#define _SC_2_C_BIND 0x000d
-#define _SC_2_C_DEV 0x000e
-#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
-#define _SC_2_LOCALEDEF 0x0013
-#define _SC_2_SW_DEV 0x0014
-#define _SC_2_UPE 0x0015
-#define _SC_2_VERSION 0x0016
-#define _SC_JOB_CONTROL 0x0017
-#define _SC_SAVED_IDS 0x0018
-#define _SC_VERSION 0x0019
-#define _SC_RE_DUP_MAX 0x001a
-#define _SC_STREAM_MAX 0x001b
-#define _SC_TZNAME_MAX 0x001c
-#define _SC_XOPEN_CRYPT 0x001d
-#define _SC_XOPEN_ENH_I18N 0x001e
-#define _SC_XOPEN_SHM 0x001f
-#define _SC_XOPEN_VERSION 0x0020
-#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
-#define _SC_ATEXIT_MAX 0x0025
-#define _SC_IOV_MAX 0x0026
-#define _SC_PAGESIZE 0x0027
-#define _SC_PAGE_SIZE 0x0028
-#define _SC_XOPEN_UNIX 0x0029
-#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
-#define _SC_DELAYTIMER_MAX 0x0031
-#define _SC_MQ_OPEN_MAX 0x0032
-#define _SC_MQ_PRIO_MAX 0x0033
-#define _SC_RTSIG_MAX 0x0034
-#define _SC_SEM_NSEMS_MAX 0x0035
-#define _SC_SEM_VALUE_MAX 0x0036
-#define _SC_SIGQUEUE_MAX 0x0037
-#define _SC_TIMER_MAX 0x0038
-#define _SC_ASYNCHRONOUS_IO 0x0039
-#define _SC_FSYNC 0x003a
-#define _SC_MAPPED_FILES 0x003b
-#define _SC_MEMLOCK 0x003c
-#define _SC_MEMLOCK_RANGE 0x003d
-#define _SC_MEMORY_PROTECTION 0x003e
-#define _SC_MESSAGE_PASSING 0x003f
-#define _SC_PRIORITIZED_IO 0x0040
-#define _SC_PRIORITY_SCHEDULING 0x0041
-#define _SC_REALTIME_SIGNALS 0x0042
-#define _SC_SEMAPHORES 0x0043
-#define _SC_SHARED_MEMORY_OBJECTS 0x0044
-#define _SC_SYNCHRONIZED_IO 0x0045
-#define _SC_TIMERS 0x0046
-#define _SC_GETGR_R_SIZE_MAX 0x0047
-#define _SC_GETPW_R_SIZE_MAX 0x0048
-#define _SC_LOGIN_NAME_MAX 0x0049
-#define _SC_THREAD_DESTRUCTOR_ITERATIONS 0x004a
-#define _SC_THREAD_KEYS_MAX 0x004b
-#define _SC_THREAD_STACK_MIN 0x004c
-#define _SC_THREAD_THREADS_MAX 0x004d
-#define _SC_TTY_NAME_MAX 0x004e
-
-#define _SC_THREADS 0x004f
-#define _SC_THREAD_ATTR_STACKADDR 0x0050
-#define _SC_THREAD_ATTR_STACKSIZE 0x0051
-#define _SC_THREAD_PRIORITY_SCHEDULING 0x0052
-#define _SC_THREAD_PRIO_INHERIT 0x0053
-#define _SC_THREAD_PRIO_PROTECT 0x0054
-#define _SC_THREAD_SAFE_FUNCTIONS 0x0055
-
-#define _SC_NPROCESSORS_CONF 0x0060
-#define _SC_NPROCESSORS_ONLN 0x0061
-#define _SC_PHYS_PAGES 0x0062
-#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
-
-#define _SC_LEVEL1_ICACHE_SIZE 0x008f
-#define _SC_LEVEL1_ICACHE_ASSOC 0x0090
-#define _SC_LEVEL1_ICACHE_LINESIZE 0x0091
-#define _SC_LEVEL1_DCACHE_SIZE 0x0092
-#define _SC_LEVEL1_DCACHE_ASSOC 0x0093
-#define _SC_LEVEL1_DCACHE_LINESIZE 0x0094
-#define _SC_LEVEL2_CACHE_SIZE 0x0095
-#define _SC_LEVEL2_CACHE_ASSOC 0x0096
-#define _SC_LEVEL2_CACHE_LINESIZE 0x0097
-#define _SC_LEVEL3_CACHE_SIZE 0x0098
-#define _SC_LEVEL3_CACHE_ASSOC 0x0099
-#define _SC_LEVEL3_CACHE_LINESIZE 0x009a
-#define _SC_LEVEL4_CACHE_SIZE 0x009b
-#define _SC_LEVEL4_CACHE_ASSOC 0x009c
-#define _SC_LEVEL4_CACHE_LINESIZE 0x009d
-
-long sysconf(int);
-
-__END_DECLS
-
-#endif /* _SYS_SYSCONF_H_ */
+#include <bits/sysconf.h>