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newlib-cygwin
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newlib-cygwin/newlib/libc/sys/linux/sysconf.c

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2002-04-04 Jeff Johnston <jjohnstn@redhat.com> * Makefile.am: Add support for installing crt1.o if one exists. * configure.host: Specify crt1.o for linux. * configure.in: Expose CRT1 and CRT1_DIR for Makefile.am to use. * Makefile.in: Regenerated. * configure: Ditto. * libc/include/sys/unistd.h (_SC_STREAM_MAX, _SC_PRIORITY_SCHEDULING): Added for non-Cygwin, non-RTEMS configurations. * libc/sys/linux/Makefile.am: Add support for crt1 and sysconf. * libc/sys/linux/Makefile.in: Regenerated. * libc/sys/linux/crt1.c: New empty file to override one defaulted by gcc. This fixes problem with reconfiguring linux newlib build. * libc/sys/linux/sysconf.c: New file.
2002-04-05 06:41:11 +08:00
/* libc/sys/linux/sysconf.c - The sysconf function */
/* Copyright 2002, Red Hat Inc. */
#include <unistd.h>
#include <limits.h>
#include <time.h>
#include <errno.h>
#include <sys/types.h>
long int
sysconf (int name)
{
switch (name)
{
case _SC_AIO_LISTIO_MAX:
#ifdef AIO_LISTIO_MAX
return AIO_LISTIO_MAX;
#else
return -1;
#endif
case _SC_AIO_MAX:
#ifdef AIO_MAX
return AIO_MAX;
#else
return -1;
#endif
case _SC_AIO_PRIO_DELTA_MAX:
#ifdef AIO_PRIO_DELTA_MAX
return AIO_PRIO_DELTA_MAX;
#else
return -1;
#endif
case _SC_ARG_MAX:
#ifdef ARG_MAX
return ARG_MAX;
#else
return -1;
#endif
case _SC_CHILD_MAX:
#ifdef CHILD_MAX
return CHILD_MAX;
#else
return -1;
#endif
case _SC_CLK_TCK:
return CLK_TCK;
case _SC_DELAYTIMER_MAX:
#ifdef DELAYTIMER_MAX
return DELAYTIMER_MAX;
#else
return -1;
#endif
case _SC_GETGR_R_SIZE_MAX:
#ifdef _GETGR_R_SIZE_MAX
return _GETGR_R_SIZE_MAX;
#else
return -1;
#endif
case _SC_GETPW_R_SIZE_MAX:
#ifdef _GETPW_R_SIZE_MAX
return _GETPW_R_SIZE_MAX;
#else
return -1;
#endif
case _SC_LOGIN_NAME_MAX:
#ifdef LOGIN_NAME_MAX
return LOGIN_NAME_MAX;
#else
return -1;
#endif
case _SC_MQ_OPEN_MAX:
#ifdef MQ_OPEN_MAX
return MQ_OPEN_MAX;
#else
return -1;
#endif
case _SC_MQ_PRIO_MAX:
#ifdef MQ_PRIO_MAX
return MQ_PRIO_MAX;
#else
return -1;
#endif
case _SC_NGROUPS_MAX:
#ifdef NGROUPS_MAX
return NGROUPS_MAX;
#else
return -1;
#endif
case _SC_OPEN_MAX:
#ifdef OPEN_MAX
return OPEN_MAX;
#else
return -1;
#endif
case _SC_PAGESIZE:
#ifdef PAGESIZE
return PAGESIZE;
#else
return -1;
#endif
case _SC_RTSIG_MAX:
#ifdef RTSIG_MAX
return RTSIG_MAX;
#else
return -1;
#endif
case _SC_SEM_NSEMS_MAX:
#ifdef SEM_NSEMS_MAX
return SEM_NSEMS_MAX;
#else
return -1;
#endif
case _SC_SEM_VALUE_MAX:
#ifdef SEM_VALUE_MAX
return SEM_VALUE_MAX;
#else
return -1;
#endif
case _SC_SIGQUEUE_MAX:
#ifdef SIGQUEUE_MAX
return SIGQUEUE_MAX;
#else
return -1;
#endif
case _SC_STREAM_MAX:
#ifdef STREAM_MAX
return STREAM_MAX;
#else
return -1;
#endif
case _SC_THREAD_DESTRUCTOR_ITERATIONS:
#ifdef PTHREAD_DESTRUCTOR_ITERATIONS
return PTHREAD_DESTRUCTOR_ITERATIONS;
#else
return -1;
#endif
case _SC_THREAD_KEYS_MAX:
#ifdef PTHREAD_KEYS_MAX
return PTHREAD_KEYS_MAX;
#else
return -1;
#endif
case _SC_THREAD_STACK_MIN:
#ifdef PTHREAD_STACK_MIN
return PTHREAD_STACK_MIN;
#else
return -1;
#endif
case _SC_THREAD_THREADS_MAX:
#ifdef PTHREAD_THREADS_MAX
return PTHREAD_THREADS_MAX;
#else
return -1;
#endif
case _SC_TIMER_MAX:
#ifdef TIMER_MAX
return TIMER_MAX;
#else
return -1;
#endif
case _SC_TTY_NAME_MAX:
#ifdef TTY_NAME_MAX
return TTY_NAME_MAX;
#else
return -1;
#endif
case _SC_TZNAME_MAX:
#ifdef TZNAME_MAX
return TZNAME_MAX;
#else
return -1;
#endif
case _SC_ASYNCHRONOUS_IO:
#ifdef _POSIX_ASYNCHRONOUS_IO
return 1;TZNAME_MAX;
#else
return -1;
#endif
case _SC_FSYNC:
#ifdef _POSIX_FSYNC
return 1;
#else
return -1;
#endif
case _SC_JOB_CONTROL:
#ifdef _POSIX_JOB_CONTROL
return 1;
#else
return -1;
#endif
case _SC_MAPPED_FILES:
#ifdef _POSIX_MAPPED_FILES
return 1;
#else
return -1;
#endif
case _SC_MEMLOCK:
#ifdef _POSIX_MEMLOCK
return 1;
#else
return -1;
#endif
case _SC_MEMLOCK_RANGE:
#ifdef _POSIX_MEMLOCK_RANGE
return _POSIX_MEMLOCK_RANGE;
#else
return -1;
#endif
case _SC_MEMORY_PROTECTION:
#ifdef _POSIX_MEMORY_PROTECTION
return 1;
#else
return -1;
#endif
case _SC_MESSAGE_PASSING:
#ifdef _POSIX_MESSAGE_PASSING
return 1;
#else
return -1;
#endif
case _SC_PRIORITIZED_IO:
#ifdef _POSIX_PRIORITIZED_IO
return 1;
#else
return -1;
#endif
case _SC_PRIORITY_SCHEDULING:
#ifdef _POSIX_PRIORITY_SCHEDULING
return 1;
#else
return -1;
#endif
case _SC_REALTIME_SIGNALS:
#ifdef _POSIX_REALTIME_SIGNALS
return 1;
#else
return -1;
#endif
case _SC_SAVED_IDS:
#ifdef _POSIX_SAVED_IDS
return 1;
#else
return -1;
#endif
case _SC_SEMAPHORES:
#ifdef _POSIX_SEMAPHORES
return 1;
#else
return -1;
#endif
case _SC_SHARED_MEMORY_OBJECTS:
#ifdef _POSIX_SHARED_MEMORY_OBJECTS
return 1;
#else
return -1;
#endif
case _SC_SYNCHRONIZED_IO:
#ifdef _POSIX_SYNCHRONIZED_IO
return 1;
#else
return -1;
#endif
case _SC_TIMERS:
#ifdef _POSIX_TIMERS
return 1;
#else
return -1;
#endif
case _SC_THREADS:
#ifdef _POSIX_THREADS
return 1;
#else
return -1;
#endif
case _SC_THREAD_ATTR_STACKADDR:
#ifdef _POSIX_THREAD_ATTR_STACKADDR
return 1;
#else
return -1;
#endif
case _SC_THREAD_ATTR_STACKSIZE:
#ifdef _POSIX_THREAD_ATTR_STACKSIZE
return 1;
#else
return -1;
#endif
case _SC_THREAD_PRIORITY_SCHEDULING:
#ifdef _POSIX_THREAD_PRIORITY_SCHEDULING
return 1;
#else
return -1;
#endif
case _SC_THREAD_PRIO_INHERIT:
#ifdef _POSIX_THREAD_PRIO_INHERIT
return 1;
#else
return -1;
#endif
case _SC_THREAD_PRIO_PROTECT:
#ifdef _POSIX_THREAD_PRIO_PROTECT
return 1;
#else
return -1;
#endif
case _SC_THREAD_PROCESS_SHARED:
#ifdef _POSIX_THREAD_PROCESS_SHARED
return 1;
#else
return -1;
#endif
case _SC_THREAD_SAFE_FUNCTIONS:
#ifdef _POSIX_THREAD_SAFE_FUNCTIONS
return 1;
#else
return -1;
#endif
case _SC_VERSION:
#ifdef _POSIX_VERSION
return _POSIX_VERSION;
#else
return -1;
#endif
default:
errno = EINVAL;
return -1;
}
return -1; /* can't get here */
}