3. RTEMS Complete Profile

This chapter has a subsection per header file to detail the methods provided by RTEMS that are in that header file.

3.1. Summary

The follow table summarizes RTEMS supported methods for all tracked standards:

Supported 990
ENOSYS 19
Not supported 216

3.2. <aio.h>

The following methods and variables in <aio.h> are supported:

  • aio_cancel()
  • aio_error()
  • aio_fsync()
  • aio_read()
  • aio_return()
  • aio_write()

The following methods in <aio.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • aio_suspend()
  • lio_listio()

3.3. <arpa/inet.h>

The following methods and variables in <arpa/inet.h> are supported:

  • htonl()
  • htons()
  • inet_addr()
  • inet_ntoa()
  • inet_ntop()
  • inet_pton()
  • ntohl()
  • ntohs()

3.4. <assert.h>

The following methods and variables in <assert.h> are supported:

  • assert()

3.5. <complex.h>

The following methods and variables in <complex.h> are supported:

  • cabs()
  • cabsf()
  • cabsl()
  • cacos()
  • cacosf()
  • cacosh()
  • cacoshf()
  • cacoshl()
  • cacosl()
  • carg()
  • cargf()
  • cargl()
  • casin()
  • casinf()
  • casinh()
  • casinhf()
  • casinhl()
  • casinl()
  • catan()
  • catanf()
  • catanh()
  • catanhf()
  • catanhl()
  • catanl()
  • ccos()
  • ccosf()
  • ccosh()
  • ccoshf()
  • ccoshl()
  • ccosl()
  • cexp()
  • cexpf()
  • cexpl()
  • cimag()
  • cimagf()
  • cimagl()
  • clog()
  • clogf()
  • clogl()
  • conj()
  • conjf()
  • conjl()
  • cpow()
  • cpowf()
  • cpowl()
  • cproj()
  • cprojf()
  • cprojl()
  • creal()
  • crealf()
  • creall()
  • csin()
  • csinf()
  • csinh()
  • csinhf()
  • csinhl()
  • csinl()
  • csqrt()
  • csqrtf()
  • csqrtl()
  • ctan()
  • ctanf()
  • ctanh()
  • ctanhf()
  • ctanhl()
  • ctanl()

3.6. <ctype.h>

The following methods and variables in <ctype.h> are supported:

  • _tolower()
  • _toupper()
  • isalnum()
  • isalnum_l()
  • isalpha()
  • isalpha_l()
  • isascii()
  • isblank()
  • isblank_l()
  • iscntrl()
  • iscntrl_l()
  • isdigit()
  • isdigit_l()
  • isgraph()
  • isgraph_l()
  • islower()
  • islower_l()
  • isprint()
  • isprint_l()
  • ispunct()
  • ispunct_l()
  • isspace()
  • isspace_l()
  • isupper()
  • isupper_l()
  • isxdigit()
  • isxdigit_l()
  • toascii()
  • tolower()
  • tolower_l()
  • toupper()
  • toupper_l()

3.7. <devctl.h>

The following methods and variables in <devctl.h> are supported:

  • posix_devctl()

3.8. <dirent.h>

The following methods and variables in <dirent.h> are supported:

  • alphasort()
  • closedir()
  • fdopendir()
  • opendir()
  • readdir()
  • readdir_r()
  • rewinddir()
  • scandir()
  • seekdir()
  • telldir()

The following methods and variables in <dirent.h> are not supported:

  • dirfd()

3.9. <dlfcn.h>

The following methods and variables in <dlfcn.h> are supported:

  • dlclose()
  • dlerror()
  • dlopen()
  • dlsym()

3.10. <errno.h>

The following methods and variables in <errno.h> are supported:

  • errno

3.11. <fcntl.h>

The following methods and variables in <fcntl.h> are supported:

  • creat()
  • fcntl()
  • open()

The following methods and variables in <fcntl.h> are not supported:

  • openat()
  • posix_fadvise()
  • posix_fallocate()
  • posix_openpt()

3.12. <fenv.h>

The following methods and variables in <fenv.h> are not supported:

  • feclearexcept()
  • fegetenv()
  • fegetexceptflag()
  • fegetround()
  • feholdexcept()
  • feraiseexcept()
  • fesetenv()
  • fesetexceptflag()
  • fesetround()
  • fetestexcept()
  • feupdateenv()

3.13. <fmtmsg.h>

The following methods and variables in <fmtmsg.h> are not supported:

  • fmtmsg()

3.14. <fnmatch.h>

The following methods and variables in <fnmatch.h> are supported:

  • fnmatch()

3.15. <ftw.h>

The following methods and variables in <ftw.h> are not supported:

  • ftw()
  • nftw()

3.16. <glob.h>

The following methods and variables in <glob.h> are supported:

  • glob()
  • globfree()

3.17. <grp.h>

The following methods and variables in <grp.h> are supported:

  • endgrent()
  • getgrent()
  • getgrgid()
  • getgrgid_r()
  • getgrnam()
  • getgrnam_r()
  • setgrent()

3.18. <iconv.h>

The following methods and variables in <iconv.h> are supported:

  • iconv()
  • iconv_close()
  • iconv_open()

3.19. <inttypes.h>

The following methods and variables in <inttypes.h> are supported:

  • imaxabs()
  • imaxdiv()
  • strtoimax()
  • strtoumax()
  • wcstoimax()
  • wcstoumax()

3.20. <langinfo.h>

The following methods and variables in <langinfo.h> are supported:

  • nl_langinfo()
  • nl_langinfo_l()

3.21. <libgen.h>

The following methods and variables in <libgen.h> are supported:

  • basename()
  • dirname()

3.22. <locale.h>

The following methods and variables in <locale.h> are supported:

  • duplocale()
  • freelocale()
  • localeconv()
  • newlocale()
  • setlocale()
  • uselocale()

3.23. <math.h>

The following methods and variables in <math.h> are supported:

  • acos()
  • acosf()
  • acosh()
  • acoshf()
  • acoshl()
  • acosl()
  • asin()
  • asinf()
  • asinh()
  • asinhf()
  • asinhl()
  • asinl()
  • atan()
  • atan2()
  • atan2f()
  • atan2l()
  • atanf()
  • atanh()
  • atanhf()
  • atanhl()
  • atanl()
  • cbrt()
  • cbrtf()
  • cbrtl()
  • ceil()
  • ceilf()
  • ceill()
  • copysign()
  • copysignf()
  • copysignl()
  • cos()
  • cosf()
  • cosh()
  • coshf()
  • coshl()
  • cosl()
  • erf()
  • erfc()
  • erfcf()
  • erfcl()
  • erff()
  • erfl()
  • exp()
  • exp2()
  • exp2f()
  • exp2l()
  • expf()
  • expl()
  • expm1()
  • expm1f()
  • expm1l()
  • fabs()
  • fabsf()
  • fabsl()
  • fdim()
  • fdimf()
  • fdiml()
  • floor()
  • floorf()
  • floorl()
  • fma()
  • fmaf()
  • fmal()
  • fmax()
  • fmaxf()
  • fmaxl()
  • fmin()
  • fminf()
  • fminl()
  • fmod()
  • fmodf()
  • fmodl()
  • frexp()
  • frexpf()
  • frexpl()
  • hypot()
  • hypotf()
  • hypotl()
  • ilogb()
  • ilogbf()
  • ilogbl()
  • isinf()
  • isnan()
  • ldexp()
  • ldexpf()
  • ldexpl()
  • lgamma()
  • lgammaf()
  • lgammal()
  • llrint()
  • llrintf()
  • llrintl()
  • llround()
  • llroundf()
  • llroundl()
  • log()
  • log10()
  • log10f()
  • log10l()
  • log1p()
  • log1pf()
  • log1pl()
  • log2()
  • log2f()
  • log2l()
  • logb()
  • logbf()
  • logbl()
  • logf()
  • logl()
  • lrint()
  • lrintf()
  • lrintl()
  • lround()
  • lroundf()
  • lroundl()
  • modf()
  • modff()
  • modfl()
  • nan()
  • nanf()
  • nanl()
  • nearbyint()
  • nearbyintf()
  • nearbyintl()
  • nextafter()
  • nextafterf()
  • nextafterl()
  • nexttoward()
  • nexttowardl()
  • pow()
  • powf()
  • powl()
  • remainder()
  • remainderf()
  • remainderl()
  • remquo()
  • remquof()
  • remquol()
  • rint()
  • rintf()
  • rintl()
  • round()
  • roundf()
  • roundl()
  • scalb()
  • scalbln()
  • scalblnf()
  • scalblnl()
  • scalbn()
  • scalbnf()
  • scalbnl()
  • sin()
  • sinf()
  • sinh()
  • sinhf()
  • sinhl()
  • sinl()
  • sqrt()
  • sqrtf()
  • sqrtl()
  • tan()
  • tanf()
  • tanh()
  • tanhf()
  • tanhl()
  • tanl()
  • tgamma()
  • tgammaf()
  • tgammal()
  • trunc()
  • truncf()
  • truncl()

The following methods and variables in <math.h> are not supported:

  • fpclassify()
  • isfinite()
  • isgreater()
  • isgreaterequal()
  • isless()
  • islessequal()
  • islessgreater()
  • isnormal()
  • isunordered()
  • j0()
  • j1()
  • jn()
  • nexttowardf()
  • signbit()
  • signgam
  • y0()
  • y1()
  • yn()

3.24. <monetary.h>

The following methods and variables in <monetary.h> are not supported:

  • strfmon()
  • strfmon_l()

3.25. <mqueue.h>

The following methods and variables in <mqueue.h> are supported:

  • mq_close()
  • mq_getattr()
  • mq_notify()
  • mq_open()
  • mq_receive()
  • mq_send()
  • mq_setattr()
  • mq_timedreceive()
  • mq_timedsend()
  • mq_unlink()

3.26. <net/if.h>

The following methods and variables in <net/if.h> are supported:

  • if_freenameindex()
  • if_indextoname()
  • if_nameindex()
  • if_nametoindex()

3.27. <netdb.h>

The following methods and variables in <netdb.h> are supported:

  • endhostent()
  • endnetent()
  • endprotoent()
  • endservent()
  • freeaddrinfo()
  • gai_strerror()
  • getaddrinfo()
  • gethostbyaddr()
  • gethostbyname()
  • gethostent()
  • getnameinfo()
  • getnetbyaddr()
  • getnetbyname()
  • getnetent()
  • getprotobyname()
  • getprotobynumber()
  • getprotoent()
  • getservbyname()
  • getservbyport()
  • getservent()
  • h_errno
  • sethostent()
  • setnetent()
  • setprotoent()
  • setservent()

3.28. <nl_types.h>

The following methods and variables in <nl_types.h> are not supported:

  • catclose()
  • catgets()
  • catopen()

3.29. <poll.h>

The following methods and variables in <poll.h> are not supported:

  • poll()

3.30. <pthread.h>

The following methods and variables in <pthread.h> are supported:

  • pthread_attr_destroy()
  • pthread_attr_getdetachstate()
  • pthread_attr_getguardsize()
  • pthread_attr_getinheritsched()
  • pthread_attr_getschedparam()
  • pthread_attr_getschedpolicy()
  • pthread_attr_getscope()
  • pthread_attr_getstack()
  • pthread_attr_getstackaddr()
  • pthread_attr_getstacksize()
  • pthread_attr_init()
  • pthread_attr_setdetachstate()
  • pthread_attr_setguardsize()
  • pthread_attr_setinheritsched()
  • pthread_attr_setschedparam()
  • pthread_attr_setschedpolicy()
  • pthread_attr_setscope()
  • pthread_attr_setstack()
  • pthread_attr_setstackaddr()
  • pthread_attr_setstacksize()
  • pthread_barrier_destroy()
  • pthread_barrier_init()
  • pthread_barrier_wait()
  • pthread_barrierattr_destroy()
  • pthread_barrierattr_getpshared()
  • pthread_barrierattr_init()
  • pthread_barrierattr_setpshared()
  • pthread_cancel()
  • pthread_cleanup_pop()
  • pthread_cleanup_push()
  • pthread_cond_broadcast()
  • pthread_cond_destroy()
  • pthread_cond_init()
  • pthread_cond_signal()
  • pthread_cond_timedwait()
  • pthread_cond_wait()
  • pthread_condattr_destroy()
  • pthread_condattr_getclock()
  • pthread_condattr_getpshared()
  • pthread_condattr_init()
  • pthread_condattr_setclock()
  • pthread_condattr_setpshared()
  • pthread_create()
  • pthread_detach()
  • pthread_equal()
  • pthread_exit()
  • pthread_getconcurrency()
  • pthread_getschedparam()
  • pthread_getspecific()
  • pthread_join()
  • pthread_key_create()
  • pthread_key_delete()
  • pthread_mutex_destroy()
  • pthread_mutex_getprioceiling()
  • pthread_mutex_init()
  • pthread_mutex_lock()
  • pthread_mutex_setprioceiling()
  • pthread_mutex_timedlock()
  • pthread_mutex_trylock()
  • pthread_mutex_unlock()
  • pthread_mutexattr_destroy()
  • pthread_mutexattr_getprioceiling()
  • pthread_mutexattr_getprotocol()
  • pthread_mutexattr_getpshared()
  • pthread_mutexattr_gettype()
  • pthread_mutexattr_init()
  • pthread_mutexattr_setprioceiling()
  • pthread_mutexattr_setprotocol()
  • pthread_mutexattr_setpshared()
  • pthread_mutexattr_settype()
  • pthread_once()
  • pthread_rwlock_destroy()
  • pthread_rwlock_init()
  • pthread_rwlock_rdlock()
  • pthread_rwlock_timedrdlock()
  • pthread_rwlock_timedwrlock()
  • pthread_rwlock_tryrdlock()
  • pthread_rwlock_trywrlock()
  • pthread_rwlock_unlock()
  • pthread_rwlock_wrlock()
  • pthread_rwlockattr_destroy()
  • pthread_rwlockattr_getpshared()
  • pthread_rwlockattr_init()
  • pthread_rwlockattr_setpshared()
  • pthread_self()
  • pthread_setcancelstate()
  • pthread_setcanceltype()
  • pthread_setconcurrency()
  • pthread_setschedparam()
  • pthread_setschedprio()
  • pthread_setspecific()
  • pthread_spin_destroy()
  • pthread_spin_init()
  • pthread_spin_lock()
  • pthread_spin_trylock()
  • pthread_spin_unlock()
  • pthread_testcancel()

The following methods in <pthread.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • pthread_atfork()
  • pthread_getcpuclockid()

The following methods and variables in <pthread.h> are not supported:

  • pthread_mutex_consistent()
  • pthread_mutexattr_getrobust()
  • pthread_mutexattr_setrobust()

3.31. <pwd.h>

The following methods and variables in <pwd.h> are supported:

  • endpwent()
  • getpwent()
  • getpwnam()
  • getpwnam_r()
  • getpwuid()
  • getpwuid_r()
  • setpwent()

3.32. <regex.h>

The following methods and variables in <regex.h> are supported:

  • regcomp()
  • regerror()
  • regexec()
  • regfree()

3.33. <sched.h>

The following methods and variables in <sched.h> are supported:

  • sched_get_priority_max()
  • sched_get_priority_min()
  • sched_rr_get_interval()
  • sched_yield()

The following methods in <sched.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • sched_getparam()
  • sched_getscheduler()
  • sched_setparam()
  • sched_setscheduler()

3.34. <search.h>

The following methods and variables in <search.h> are supported:

  • hcreate()
  • hdestroy()
  • hsearch()
  • tdelete()
  • tfind()
  • tsearch()
  • twalk()

The following methods and variables in <search.h> are not supported:

  • insque()
  • lfind()
  • lsearch()
  • remque()

3.35. <semaphore.h>

The following methods and variables in <semaphore.h> are supported:

  • sem_close()
  • sem_destroy()
  • sem_getvalue()
  • sem_init()
  • sem_open()
  • sem_post()
  • sem_timedwait()
  • sem_trywait()
  • sem_unlink()
  • sem_wait()

3.36. <setjmp.h>

The following methods and variables in <setjmp.h> are supported:

  • longjmp()
  • setjmp()
  • siglongjmp()
  • sigsetjmp()

The following methods and variables in <setjmp.h> are not supported:

  • _longjmp()
  • _setjmp()

3.37. <signal.h>

The following methods and variables in <signal.h> are supported:

  • bsd_signal()
  • kill()
  • psignal()
  • pthread_kill()
  • pthread_sigmask()
  • raise()
  • sigaction()
  • sigaddset()
  • sigdelset()
  • sigemptyset()
  • sigfillset()
  • sigismember()
  • signal()
  • sigpending()
  • sigprocmask()
  • sigqueue()
  • sigsuspend()
  • sigtimedwait()
  • sigwait()
  • sigwaitinfo()

The following methods and variables in <signal.h> are not supported:

  • killpg()
  • psiginfo()
  • sigaltstack()
  • sighold()
  • sigignore()
  • siginterrupt()
  • sigpause()
  • sigrelse()
  • sigset()

3.38. <spawn.h>

The following methods and variables in <spawn.h> are not supported:

  • posix_spawn()
  • posix_spawn_file_actions_addclose()
  • posix_spawn_file_actions_adddup2()
  • posix_spawn_file_actions_addopen()
  • posix_spawn_file_actions_destroy()
  • posix_spawn_file_actions_init()
  • posix_spawnattr_destroy()
  • posix_spawnattr_getflags()
  • posix_spawnattr_getpgroup()
  • posix_spawnattr_getschedparam()
  • posix_spawnattr_getschedpolicy()
  • posix_spawnattr_getsigdefault()
  • posix_spawnattr_getsigmask()
  • posix_spawnattr_init()
  • posix_spawnattr_setflags()
  • posix_spawnattr_setpgroup()
  • posix_spawnattr_setschedparam()
  • posix_spawnattr_setschedpolicy()
  • posix_spawnattr_setsigdefault()
  • posix_spawnattr_setsigmask()
  • posix_spawnp()

3.39. <stdarg.h>

The following methods and variables in <stdarg.h> are supported:

  • va_arg()
  • va_copy()
  • va_end()
  • va_start()

3.40. <stddef.h>

The following methods and variables in <stddef.h> are supported:

  • offsetof()

3.41. <stdio.h>

The following methods and variables in <stdio.h> are supported:

  • clearerr()
  • ctermid()
  • dprintf()
  • fclose()
  • fdopen()
  • feof()
  • ferror()
  • fflush()
  • fgetc()
  • fgetpos()
  • fgets()
  • fileno()
  • flockfile()
  • fmemopen()
  • fopen()
  • fprintf()
  • fputc()
  • fputs()
  • fread()
  • freopen()
  • fscanf()
  • fseek()
  • fseeko()
  • fsetpos()
  • ftell()
  • ftello()
  • ftrylockfile()
  • funlockfile()
  • fwrite()
  • getc()
  • getc_unlocked()
  • getchar()
  • getchar_unlocked()
  • gets()
  • open_memstream()
  • perror()
  • printf()
  • putc()
  • putc_unlocked()
  • putchar()
  • putchar_unlocked()
  • puts()
  • remove()
  • rename()
  • rewind()
  • scanf()
  • setbuf()
  • setvbuf()
  • snprintf()
  • sprintf()
  • sscanf()
  • stderr
  • stdin
  • stdout
  • tempnam()
  • tmpfile()
  • tmpnam()
  • ungetc()
  • vdprintf()
  • vfprintf()
  • vfscanf()
  • vprintf()
  • vscanf()
  • vsnprintf()
  • vsprintf()
  • vsscanf()

The following methods and variables in <stdio.h> are not supported:

  • getdelim()
  • getline()
  • pclose()
  • popen()
  • renameat()

3.42. <stdlib.h>

The following methods and variables in <stdlib.h> are supported:

  • _Exit()
  • a64l()
  • abort()
  • abs()
  • atexit()
  • atof()
  • atoi()
  • atol()
  • atoll()
  • bsearch()
  • calloc()
  • div()
  • drand48()
  • ecvt()
  • erand48()
  • exit()
  • fcvt()
  • free()
  • gcvt()
  • getenv()
  • getsubopt()
  • jrand48()
  • l64a()
  • labs()
  • lcong48()
  • ldiv()
  • llabs()
  • lldiv()
  • lrand48()
  • malloc()
  • mblen()
  • mbstowcs()
  • mbtowc()
  • mkdtemp()
  • mkstemp()
  • mrand48()
  • nrand48()
  • posix_memalign()
  • putenv()
  • qsort()
  • rand()
  • rand_r()
  • random()
  • realloc()
  • realpath()
  • seed48()
  • setenv()
  • srand()
  • srand48()
  • srandom()
  • strtod()
  • strtof()
  • strtol()
  • strtold()
  • strtoll()
  • strtoul()
  • strtoull()
  • unsetenv()
  • wcstombs()
  • wctomb()

The following methods in <stdlib.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • system()

The following methods and variables in <stdlib.h> are not supported:

  • grantpt()
  • initstate()
  • ptsname()
  • setkey()
  • setstate()
  • unlockpt()

3.43. <string.h>

The following methods and variables in <string.h> are supported:

  • memccpy()
  • memchr()
  • memcmp()
  • memcpy()
  • memmove()
  • memset()
  • stpcpy()
  • stpncpy()
  • strcat()
  • strchr()
  • strcmp()
  • strcoll()
  • strcoll_l()
  • strcpy()
  • strcspn()
  • strdup()
  • strerror()
  • strerror_l()
  • strerror_r()
  • strlen()
  • strncat()
  • strncmp()
  • strncpy()
  • strndup()
  • strnlen()
  • strpbrk()
  • strrchr()
  • strsignal()
  • strspn()
  • strstr()
  • strtok()
  • strtok_r()
  • strxfrm()
  • strxfrm_l()

3.44. <strings.h>

The following methods and variables in <strings.h> are supported:

  • bcmp()
  • bcopy()
  • ffs()
  • index()
  • rindex()
  • strcasecmp()
  • strcasecmp_l()
  • strncasecmp()
  • strncasecmp_l()

3.45. <stropts.h>

The following methods and variables in <stropts.h> are supported:

  • ioctl()

The following methods and variables in <stropts.h> are not supported:

  • fattach()
  • fdetach()
  • getmsg()
  • getpmsg()
  • isastream()
  • putmsg()
  • putpmsg()

3.46. <sys/ipc.h>

The following methods and variables in <sys/ipc.h> are not supported:

  • ftok()

3.47. <sys/mman.h>

The following methods and variables in <sys/mman.h> are supported:

  • mlock()
  • mlockall()
  • mmap()
  • mprotect()
  • msync()
  • munlock()
  • munlockall()
  • munmap()
  • posix_madvise()
  • shm_open()
  • shm_unlink()

The following methods and variables in <sys/mman.h> are not supported:

  • posix_mem_offset()
  • posix_typed_mem_get_info()
  • posix_typed_mem_open()

3.48. <sys/msg.h>

The following methods and variables in <sys/msg.h> are not supported:

  • msgctl()
  • msgget()
  • msgrcv()
  • msgsnd()

3.49. <sys/resource.h>

The following methods and variables in <sys/resource.h> are supported:

  • getrusage()

The following methods and variables in <sys/resource.h> are not supported:

  • getpriority()
  • getrlimit()
  • setpriority()
  • setrlimit()

3.50. <sys/select.h>

The following methods and variables in <sys/select.h> are supported:

  • FD_CLR()
  • FD_ISSET()
  • FD_SET()
  • FD_ZERO()
  • select()

The following methods and variables in <sys/select.h> are not supported:

  • pselect()

3.51. <sys/sem.h>

The following methods and variables in <sys/sem.h> are not supported:

  • semctl()
  • semget()
  • semop()

3.52. <sys/shm.h>

The following methods and variables in <sys/shm.h> are not supported:

  • shmat()
  • shmctl()
  • shmdt()
  • shmget()

3.53. <sys/socket.h>

The following methods and variables in <sys/socket.h> are supported:

  • accept()
  • bind()
  • connect()
  • getpeername()
  • getsockname()
  • getsockopt()
  • listen()
  • recv()
  • recvfrom()
  • recvmsg()
  • send()
  • sendmsg()
  • sendto()
  • setsockopt()
  • shutdown()
  • socket()
  • socketpair()

The following methods and variables in <sys/socket.h> are not supported:

  • sockatmark()

3.54. <sys/stat.h>

The following methods and variables in <sys/stat.h> are supported:

  • chmod()
  • fchmod()
  • fstat()
  • lstat()
  • mkdir()
  • mkfifo()
  • mknod()
  • stat()
  • umask()

The following methods and variables in <sys/stat.h> are not supported:

  • fchmodat()
  • fstatat()
  • futimens()
  • mkdirat()
  • mkfifoat()
  • mknodat()
  • utimensat()

3.55. <sys/statvfs.h>

The following methods and variables in <sys/statvfs.h> are supported:

  • statvfs()

The following methods and variables in <sys/statvfs.h> are not supported:

  • fstatvfs()

3.56. <sys/time.h>

The following methods and variables in <sys/time.h> are supported:

  • gettimeofday()
  • times()
  • utimes()

The following methods in <sys/time.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • getitimer()
  • setitimer()

3.57. <sys/uio.h>

The following methods and variables in <sys/uio.h> are supported:

  • readv()
  • writev()

3.58. <sys/utsname.h>

The following methods and variables in <sys/utsname.h> are supported:

  • uname()

3.59. <sys/wait.h>

The following methods and variables in <sys/wait.h> are supported:

  • wait()
  • waitpid()

The following methods and variables in <sys/wait.h> are not supported:

  • waitid()

3.60. <syslog.h>

The following methods and variables in <syslog.h> are not supported:

  • closelog()
  • openlog()
  • setlogmask()
  • syslog()

3.61. <termios.h>

The following methods and variables in <termios.h> are supported:

  • cfgetispeed()
  • cfgetospeed()
  • cfsetispeed()
  • cfsetospeed()
  • tcdrain()
  • tcflow()
  • tcflush()
  • tcgetattr()
  • tcsendbreak()
  • tcsetattr()

The following methods and variables in <termios.h> are not supported:

  • tcgetsid()

3.62. <threads.h>

The following methods and variables in <threads.h> are supported:

  • call_once()
  • cnd_broadcast()
  • cnd_destroy()
  • cnd_init()
  • cnd_signal()
  • cnd_timedwait()
  • cnd_wait()
  • mtx_destroy()
  • mtx_init()
  • mtx_lock()
  • mtx_timedlock()
  • mtx_trylock()
  • mtx_unlock()
  • thrd_create()
  • thrd_current()
  • thrd_detach()
  • thrd_equal()
  • thrd_exit()
  • thrd_join()
  • thrd_sleep()
  • thrd_yield()
  • tss_create()
  • tss_delete()
  • tss_get()
  • tss_set()

3.63. <time.h>

The following methods and variables in <time.h> are supported:

  • asctime()
  • asctime_r()
  • clock()
  • clock_getres()
  • clock_gettime()
  • clock_nanosleep()
  • clock_settime()
  • ctime()
  • ctime_r()
  • difftime()
  • gmtime()
  • gmtime_r()
  • localtime()
  • localtime_r()
  • mktime()
  • nanosleep()
  • strftime()
  • strftime_l()
  • strptime()
  • time()
  • timer_create()
  • timer_delete()
  • timer_getoverrun()
  • timer_gettime()
  • timer_settime()
  • timezone
  • tzname
  • tzset()

The following methods in <time.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • clock_getcpuclockid()

The following methods and variables in <time.h> are not supported:

  • daylight
  • getdate()
  • getdate_err

3.64. <trace.h>

The following methods and variables in <trace.h> are not supported:

  • posix_trace_attr_destroy()
  • posix_trace_attr_getclockres()
  • posix_trace_attr_getcreatetime()
  • posix_trace_attr_getgenversion()
  • posix_trace_attr_getinherited()
  • posix_trace_attr_getlogfullpolicy()
  • posix_trace_attr_getlogsize()
  • posix_trace_attr_getmaxdatasize()
  • posix_trace_attr_getmaxsystemeventsize()
  • posix_trace_attr_getmaxusereventsize()
  • posix_trace_attr_getname()
  • posix_trace_attr_getstreamfullpolicy()
  • posix_trace_attr_getstreamsize()
  • posix_trace_attr_init()
  • posix_trace_attr_setinherited()
  • posix_trace_attr_setlogfullpolicy()
  • posix_trace_attr_setlogsize()
  • posix_trace_attr_setmaxdatasize()
  • posix_trace_attr_setname()
  • posix_trace_attr_setstreamfullpolicy()
  • posix_trace_attr_setstreamsize()
  • posix_trace_clear()
  • posix_trace_close()
  • posix_trace_create()
  • posix_trace_create_withlog()
  • posix_trace_event()
  • posix_trace_eventid_equal()
  • posix_trace_eventid_get_name()
  • posix_trace_eventid_open()
  • posix_trace_eventset_add()
  • posix_trace_eventset_del()
  • posix_trace_eventset_empty()
  • posix_trace_eventset_fill()
  • posix_trace_eventset_ismember()
  • posix_trace_eventtypelist_getnext_id()
  • posix_trace_eventtypelist_rewind()
  • posix_trace_flush()
  • posix_trace_get_attr()
  • posix_trace_get_filter()
  • posix_trace_get_status()
  • posix_trace_getnext_event()
  • posix_trace_open()
  • posix_trace_rewind()
  • posix_trace_set_filter()
  • posix_trace_shutdown()
  • posix_trace_start()
  • posix_trace_stop()
  • posix_trace_timedgetnext_event()
  • posix_trace_trid_eventid_open()
  • posix_trace_trygetnext_event()

3.65. <ulimit.h>

The following methods and variables in <ulimit.h> are not supported:

  • ulimit()

3.66. <unistd.h>

The following methods and variables in <unistd.h> are supported:

  • _exit()
  • access()
  • alarm()
  • chdir()
  • chown()
  • close()
  • dup()
  • dup2()
  • environ
  • fchdir()
  • fchown()
  • fdatasync()
  • fpathconf()
  • fsync()
  • ftruncate()
  • getcwd()
  • getegid()
  • geteuid()
  • getgid()
  • getgroups()
  • gethostname()
  • getlogin()
  • getlogin_r()
  • getopt()
  • getpgrp()
  • getpid()
  • getppid()
  • getuid()
  • isatty()
  • lchown()
  • link()
  • lseek()
  • optarg
  • opterr
  • optind
  • optopt
  • pathconf()
  • pause()
  • pipe()
  • pread()
  • pwrite()
  • read()
  • readlink()
  • rmdir()
  • setegid()
  • seteuid()
  • setgid()
  • setpgid()
  • setsid()
  • setuid()
  • sleep()
  • swab()
  • symlink()
  • sync()
  • sysconf()
  • tcgetpgrp()
  • tcsetpgrp()
  • truncate()
  • ttyname()
  • ttyname_r()
  • ualarm()
  • unlink()
  • usleep()
  • write()

The following methods in <unistd.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • execl()
  • execle()
  • execlp()
  • execv()
  • execve()
  • execvp()
  • fork()

The following methods and variables in <unistd.h> are not supported:

  • confstr()
  • crypt()
  • encrypt()
  • faccessat()
  • fchownat()
  • fexecve()
  • gethostid()
  • getpgid()
  • getsid()
  • linkat()
  • lockf()
  • nice()
  • readlinkat()
  • setpgrp()
  • setregid()
  • setreuid()
  • symlinkat()
  • unlinkat()

3.67. <utime.h>

The following methods and variables in <utime.h> are supported:

  • utime()

3.68. <utmpx.h>

The following methods and variables in <utmpx.h> are not supported:

  • endutxent()
  • getutxent()
  • getutxid()
  • getutxline()
  • pututxline()
  • setutxent()

3.69. <wchar.h>

The following methods and variables in <wchar.h> are supported:

  • btowc()
  • fgetwc()
  • fgetws()
  • fputwc()
  • fputws()
  • fwide()
  • fwprintf()
  • fwscanf()
  • getwc()
  • getwchar()
  • mbrlen()
  • mbrtowc()
  • mbsinit()
  • mbsnrtowcs()
  • mbsrtowcs()
  • open_wmemstream()
  • putwc()
  • putwchar()
  • swprintf()
  • swscanf()
  • ungetwc()
  • vfwprintf()
  • vfwscanf()
  • vswprintf()
  • vswscanf()
  • vwprintf()
  • vwscanf()
  • wcpcpy()
  • wcpncpy()
  • wcrtomb()
  • wcscasecmp()
  • wcscasecmp_l()
  • wcscat()
  • wcschr()
  • wcscmp()
  • wcscoll()
  • wcscoll_l()
  • wcscpy()
  • wcscspn()
  • wcsdup()
  • wcsftime()
  • wcslen()
  • wcsncasecmp()
  • wcsncat()
  • wcsncmp()
  • wcsncpy()
  • wcsnlen()
  • wcsnrtombs()
  • wcspbrk()
  • wcsrchr()
  • wcsrtombs()
  • wcsspn()
  • wcsstr()
  • wcstod()
  • wcstof()
  • wcstok()
  • wcstol()
  • wcstold()
  • wcstoll()
  • wcstoul()
  • wcstoull()
  • wcswidth()
  • wcsxfrm()
  • wcsxfrm_l()
  • wctob()
  • wcwidth()
  • wmemchr()
  • wmemcmp()
  • wmemcpy()
  • wmemmove()
  • wmemset()
  • wprintf()
  • wscanf()

The following methods and variables in <wchar.h> are not supported:

  • wcsncasemcp_l()

3.70. <wctype.h>

The following methods and variables in <wctype.h> are supported:

  • iswalnum()
  • iswalnum_l()
  • iswalpha()
  • iswalpha_l()
  • iswblank()
  • iswblank_l()
  • iswcntrl()
  • iswcntrl_l()
  • iswctype()
  • iswctype_l()
  • iswdigit()
  • iswdigit_l()
  • iswgraph()
  • iswgraph_l()
  • iswlower()
  • iswlower_l()
  • iswprint()
  • iswprint_l()
  • iswpunct()
  • iswpunct_l()
  • iswspace()
  • iswspace_l()
  • iswupper()
  • iswupper_l()
  • iswxdigit()
  • iswxdigit_l()
  • towctrans()
  • towctrans_l()
  • towlower()
  • towlower_l()
  • towupper()
  • towupper_l()
  • wctrans()
  • wctrans_l()
  • wctype()
  • wctype_l()

3.71. <wordexp.h>

The following methods and variables in <wordexp.h> are not supported:

  • wordexp()
  • wordfree()

4. POSIX-2008

This chapter has a subsection per header file to detail the methods provided by RTEMS that are in that header file.

4.1. Summary

The follow table summarizes alignment with the POSIX-2008 standard:

Supported 950
ENOSYS 19
Not supported 216

4.2. <aio.h>

The following methods and variables in <aio.h> are supported:

  • aio_cancel()
  • aio_error()
  • aio_fsync()
  • aio_read()
  • aio_return()
  • aio_write()

The following methods in <aio.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • aio_suspend()
  • lio_listio()

4.3. <arpa/inet.h>

The following methods and variables in <arpa/inet.h> are supported:

  • htonl()
  • htons()
  • inet_addr()
  • inet_ntoa()
  • inet_ntop()
  • inet_pton()
  • ntohl()
  • ntohs()

4.4. <assert.h>

The following methods and variables in <assert.h> are supported:

  • assert()

4.5. <complex.h>

The following methods and variables in <complex.h> are supported:

  • cabs()
  • cabsf()
  • cabsl()
  • cacos()
  • cacosf()
  • cacosh()
  • cacoshf()
  • cacoshl()
  • cacosl()
  • carg()
  • cargf()
  • cargl()
  • casin()
  • casinf()
  • casinh()
  • casinhf()
  • casinhl()
  • casinl()
  • catan()
  • catanf()
  • catanh()
  • catanhf()
  • catanhl()
  • catanl()
  • ccos()
  • ccosf()
  • ccosh()
  • ccoshf()
  • ccoshl()
  • ccosl()
  • cexp()
  • cexpf()
  • cexpl()
  • cimag()
  • cimagf()
  • cimagl()
  • clog()
  • clogf()
  • clogl()
  • conj()
  • conjf()
  • conjl()
  • cpow()
  • cpowf()
  • cpowl()
  • cproj()
  • cprojf()
  • cprojl()
  • creal()
  • crealf()
  • creall()
  • csin()
  • csinf()
  • csinh()
  • csinhf()
  • csinhl()
  • csinl()
  • csqrt()
  • csqrtf()
  • csqrtl()
  • ctan()
  • ctanf()
  • ctanh()
  • ctanhf()
  • ctanhl()
  • ctanl()

4.6. <ctype.h>

The following methods and variables in <ctype.h> are supported:

  • _tolower()
  • _toupper()
  • isalnum()
  • isalnum_l()
  • isalpha()
  • isalpha_l()
  • isascii()
  • isblank()
  • isblank_l()
  • iscntrl()
  • iscntrl_l()
  • isdigit()
  • isdigit_l()
  • isgraph()
  • isgraph_l()
  • islower()
  • islower_l()
  • isprint()
  • isprint_l()
  • ispunct()
  • ispunct_l()
  • isspace()
  • isspace_l()
  • isupper()
  • isupper_l()
  • isxdigit()
  • isxdigit_l()
  • toascii()
  • tolower()
  • tolower_l()
  • toupper()
  • toupper_l()

4.7. <dirent.h>

The following methods and variables in <dirent.h> are supported:

  • alphasort()
  • closedir()
  • fdopendir()
  • opendir()
  • readdir()
  • readdir_r()
  • rewinddir()
  • scandir()
  • seekdir()
  • telldir()

The following methods and variables in <dirent.h> are not supported:

  • dirfd()

4.8. <dlfcn.h>

The following methods and variables in <dlfcn.h> are supported:

  • dlclose()
  • dlerror()
  • dlopen()
  • dlsym()

4.9. <errno.h>

The following methods and variables in <errno.h> are supported:

  • errno

4.10. <fcntl.h>

The following methods and variables in <fcntl.h> are supported:

  • creat()
  • fcntl()
  • open()

The following methods and variables in <fcntl.h> are not supported:

  • openat()
  • posix_fadvise()
  • posix_fallocate()
  • posix_openpt()

4.11. <fenv.h>

The following methods and variables in <fenv.h> are not supported:

  • feclearexcept()
  • fegetenv()
  • fegetexceptflag()
  • fegetround()
  • feholdexcept()
  • feraiseexcept()
  • fesetenv()
  • fesetexceptflag()
  • fesetround()
  • fetestexcept()
  • feupdateenv()

4.12. <fmtmsg.h>

The following methods and variables in <fmtmsg.h> are not supported:

  • fmtmsg()

4.13. <fnmatch.h>

The following methods and variables in <fnmatch.h> are supported:

  • fnmatch()

4.14. <ftw.h>

The following methods and variables in <ftw.h> are not supported:

  • ftw()
  • nftw()

4.15. <glob.h>

The following methods and variables in <glob.h> are supported:

  • glob()
  • globfree()

4.16. <grp.h>

The following methods and variables in <grp.h> are supported:

  • endgrent()
  • getgrent()
  • getgrgid()
  • getgrgid_r()
  • getgrnam()
  • getgrnam_r()
  • setgrent()

4.17. <iconv.h>

The following methods and variables in <iconv.h> are supported:

  • iconv()
  • iconv_close()
  • iconv_open()

4.18. <inttypes.h>

The following methods and variables in <inttypes.h> are supported:

  • imaxabs()
  • imaxdiv()
  • strtoimax()
  • strtoumax()
  • wcstoimax()
  • wcstoumax()

4.19. <langinfo.h>

The following methods and variables in <langinfo.h> are supported:

  • nl_langinfo()
  • nl_langinfo_l()

4.20. <libgen.h>

The following methods and variables in <libgen.h> are supported:

  • basename()
  • dirname()

4.21. <locale.h>

The following methods and variables in <locale.h> are supported:

  • duplocale()
  • freelocale()
  • localeconv()
  • newlocale()
  • setlocale()
  • uselocale()

4.22. <math.h>

The following methods and variables in <math.h> are supported:

  • acos()
  • acosf()
  • acosh()
  • acoshf()
  • acoshl()
  • acosl()
  • asin()
  • asinf()
  • asinh()
  • asinhf()
  • asinhl()
  • asinl()
  • atan()
  • atan2()
  • atan2f()
  • atan2l()
  • atanf()
  • atanh()
  • atanhf()
  • atanhl()
  • atanl()
  • cbrt()
  • cbrtf()
  • cbrtl()
  • ceil()
  • ceilf()
  • ceill()
  • copysign()
  • copysignf()
  • copysignl()
  • cos()
  • cosf()
  • cosh()
  • coshf()
  • coshl()
  • cosl()
  • erf()
  • erfc()
  • erfcf()
  • erfcl()
  • erff()
  • erfl()
  • exp()
  • exp2()
  • exp2f()
  • exp2l()
  • expf()
  • expl()
  • expm1()
  • expm1f()
  • expm1l()
  • fabs()
  • fabsf()
  • fabsl()
  • fdim()
  • fdimf()
  • fdiml()
  • floor()
  • floorf()
  • floorl()
  • fma()
  • fmaf()
  • fmal()
  • fmax()
  • fmaxf()
  • fmaxl()
  • fmin()
  • fminf()
  • fminl()
  • fmod()
  • fmodf()
  • fmodl()
  • frexp()
  • frexpf()
  • frexpl()
  • hypot()
  • hypotf()
  • hypotl()
  • ilogb()
  • ilogbf()
  • ilogbl()
  • isinf()
  • isnan()
  • ldexp()
  • ldexpf()
  • ldexpl()
  • lgamma()
  • lgammaf()
  • lgammal()
  • llrint()
  • llrintf()
  • llrintl()
  • llround()
  • llroundf()
  • llroundl()
  • log()
  • log10()
  • log10f()
  • log10l()
  • log1p()
  • log1pf()
  • log1pl()
  • log2()
  • log2f()
  • log2l()
  • logb()
  • logbf()
  • logbl()
  • logf()
  • logl()
  • lrint()
  • lrintf()
  • lrintl()
  • lround()
  • lroundf()
  • lroundl()
  • modf()
  • modff()
  • modfl()
  • nan()
  • nanf()
  • nanl()
  • nearbyint()
  • nearbyintf()
  • nearbyintl()
  • nextafter()
  • nextafterf()
  • nextafterl()
  • nexttoward()
  • nexttowardl()
  • pow()
  • powf()
  • powl()
  • remainder()
  • remainderf()
  • remainderl()
  • remquo()
  • remquof()
  • remquol()
  • rint()
  • rintf()
  • rintl()
  • round()
  • roundf()
  • roundl()
  • scalbln()
  • scalblnf()
  • scalblnl()
  • scalbn()
  • scalbnf()
  • scalbnl()
  • sin()
  • sinf()
  • sinh()
  • sinhf()
  • sinhl()
  • sinl()
  • sqrt()
  • sqrtf()
  • sqrtl()
  • tan()
  • tanf()
  • tanh()
  • tanhf()
  • tanhl()
  • tanl()
  • tgamma()
  • tgammaf()
  • tgammal()
  • trunc()
  • truncf()
  • truncl()

The following methods and variables in <math.h> are not supported:

  • fpclassify()
  • isfinite()
  • isgreater()
  • isgreaterequal()
  • isless()
  • islessequal()
  • islessgreater()
  • isnormal()
  • isunordered()
  • j0()
  • j1()
  • jn()
  • nexttowardf()
  • signbit()
  • signgam
  • y0()
  • y1()
  • yn()

4.23. <monetary.h>

The following methods and variables in <monetary.h> are not supported:

  • strfmon()
  • strfmon_l()

4.24. <mqueue.h>

The following methods and variables in <mqueue.h> are supported:

  • mq_close()
  • mq_getattr()
  • mq_notify()
  • mq_open()
  • mq_receive()
  • mq_send()
  • mq_setattr()
  • mq_timedreceive()
  • mq_timedsend()
  • mq_unlink()

4.25. <net/if.h>

The following methods and variables in <net/if.h> are supported:

  • if_freenameindex()
  • if_indextoname()
  • if_nameindex()
  • if_nametoindex()

4.26. <netdb.h>

The following methods and variables in <netdb.h> are supported:

  • endhostent()
  • endnetent()
  • endprotoent()
  • endservent()
  • freeaddrinfo()
  • gai_strerror()
  • getaddrinfo()
  • gethostent()
  • getnameinfo()
  • getnetbyaddr()
  • getnetbyname()
  • getnetent()
  • getprotobyname()
  • getprotobynumber()
  • getprotoent()
  • getservbyname()
  • getservbyport()
  • getservent()
  • sethostent()
  • setnetent()
  • setprotoent()
  • setservent()

4.27. <nl_types.h>

The following methods and variables in <nl_types.h> are not supported:

  • catclose()
  • catgets()
  • catopen()

4.28. <poll.h>

The following methods and variables in <poll.h> are not supported:

  • poll()

4.29. <pthread.h>

The following methods and variables in <pthread.h> are supported:

  • pthread_attr_destroy()
  • pthread_attr_getdetachstate()
  • pthread_attr_getguardsize()
  • pthread_attr_getinheritsched()
  • pthread_attr_getschedparam()
  • pthread_attr_getschedpolicy()
  • pthread_attr_getscope()
  • pthread_attr_getstack()
  • pthread_attr_getstackaddr()
  • pthread_attr_getstacksize()
  • pthread_attr_init()
  • pthread_attr_setdetachstate()
  • pthread_attr_setguardsize()
  • pthread_attr_setinheritsched()
  • pthread_attr_setschedparam()
  • pthread_attr_setschedpolicy()
  • pthread_attr_setscope()
  • pthread_attr_setstack()
  • pthread_attr_setstackaddr()
  • pthread_attr_setstacksize()
  • pthread_barrier_destroy()
  • pthread_barrier_init()
  • pthread_barrier_wait()
  • pthread_barrierattr_destroy()
  • pthread_barrierattr_getpshared()
  • pthread_barrierattr_init()
  • pthread_barrierattr_setpshared()
  • pthread_cancel()
  • pthread_cleanup_pop()
  • pthread_cleanup_push()
  • pthread_cond_broadcast()
  • pthread_cond_destroy()
  • pthread_cond_init()
  • pthread_cond_signal()
  • pthread_cond_timedwait()
  • pthread_cond_wait()
  • pthread_condattr_destroy()
  • pthread_condattr_getclock()
  • pthread_condattr_getpshared()
  • pthread_condattr_init()
  • pthread_condattr_setclock()
  • pthread_condattr_setpshared()
  • pthread_create()
  • pthread_detach()
  • pthread_equal()
  • pthread_exit()
  • pthread_getconcurrency()
  • pthread_getschedparam()
  • pthread_getspecific()
  • pthread_join()
  • pthread_key_create()
  • pthread_key_delete()
  • pthread_mutex_destroy()
  • pthread_mutex_getprioceiling()
  • pthread_mutex_init()
  • pthread_mutex_lock()
  • pthread_mutex_setprioceiling()
  • pthread_mutex_timedlock()
  • pthread_mutex_trylock()
  • pthread_mutex_unlock()
  • pthread_mutexattr_destroy()
  • pthread_mutexattr_getprioceiling()
  • pthread_mutexattr_getprotocol()
  • pthread_mutexattr_getpshared()
  • pthread_mutexattr_gettype()
  • pthread_mutexattr_init()
  • pthread_mutexattr_setprioceiling()
  • pthread_mutexattr_setprotocol()
  • pthread_mutexattr_setpshared()
  • pthread_mutexattr_settype()
  • pthread_once()
  • pthread_rwlock_destroy()
  • pthread_rwlock_init()
  • pthread_rwlock_rdlock()
  • pthread_rwlock_timedrdlock()
  • pthread_rwlock_timedwrlock()
  • pthread_rwlock_tryrdlock()
  • pthread_rwlock_trywrlock()
  • pthread_rwlock_unlock()
  • pthread_rwlock_wrlock()
  • pthread_rwlockattr_destroy()
  • pthread_rwlockattr_getpshared()
  • pthread_rwlockattr_init()
  • pthread_rwlockattr_setpshared()
  • pthread_self()
  • pthread_setcancelstate()
  • pthread_setcanceltype()
  • pthread_setconcurrency()
  • pthread_setschedparam()
  • pthread_setschedprio()
  • pthread_setspecific()
  • pthread_spin_destroy()
  • pthread_spin_init()
  • pthread_spin_lock()
  • pthread_spin_trylock()
  • pthread_spin_unlock()
  • pthread_testcancel()

The following methods in <pthread.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • pthread_atfork()
  • pthread_getcpuclockid()

The following methods and variables in <pthread.h> are not supported:

  • pthread_mutex_consistent()
  • pthread_mutexattr_getrobust()
  • pthread_mutexattr_setrobust()

4.30. <pwd.h>

The following methods and variables in <pwd.h> are supported:

  • endpwent()
  • getpwent()
  • getpwnam()
  • getpwnam_r()
  • getpwuid()
  • getpwuid_r()
  • setpwent()

4.31. <regex.h>

The following methods and variables in <regex.h> are supported:

  • regcomp()
  • regerror()
  • regexec()
  • regfree()

4.32. <sched.h>

The following methods and variables in <sched.h> are supported:

  • sched_get_priority_max()
  • sched_get_priority_min()
  • sched_rr_get_interval()
  • sched_yield()

The following methods in <sched.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • sched_getparam()
  • sched_getscheduler()
  • sched_setparam()
  • sched_setscheduler()

4.33. <search.h>

The following methods and variables in <search.h> are supported:

  • hcreate()
  • hdestroy()
  • hsearch()
  • tdelete()
  • tfind()
  • tsearch()
  • twalk()

The following methods and variables in <search.h> are not supported:

  • insque()
  • lfind()
  • lsearch()
  • remque()

4.34. <semaphore.h>

The following methods and variables in <semaphore.h> are supported:

  • sem_close()
  • sem_destroy()
  • sem_getvalue()
  • sem_init()
  • sem_open()
  • sem_post()
  • sem_timedwait()
  • sem_trywait()
  • sem_unlink()
  • sem_wait()

4.35. <setjmp.h>

The following methods and variables in <setjmp.h> are supported:

  • longjmp()
  • setjmp()
  • siglongjmp()
  • sigsetjmp()

The following methods and variables in <setjmp.h> are not supported:

  • _longjmp()
  • _setjmp()

4.36. <signal.h>

The following methods and variables in <signal.h> are supported:

  • kill()
  • psignal()
  • pthread_kill()
  • pthread_sigmask()
  • raise()
  • sigaction()
  • sigaddset()
  • sigdelset()
  • sigemptyset()
  • sigfillset()
  • sigismember()
  • signal()
  • sigpending()
  • sigprocmask()
  • sigqueue()
  • sigsuspend()
  • sigtimedwait()
  • sigwait()
  • sigwaitinfo()

The following methods and variables in <signal.h> are not supported:

  • killpg()
  • psiginfo()
  • sigaltstack()
  • sighold()
  • sigignore()
  • siginterrupt()
  • sigpause()
  • sigrelse()
  • sigset()

4.37. <spawn.h>

The following methods and variables in <spawn.h> are not supported:

  • posix_spawn()
  • posix_spawn_file_actions_addclose()
  • posix_spawn_file_actions_adddup2()
  • posix_spawn_file_actions_addopen()
  • posix_spawn_file_actions_destroy()
  • posix_spawn_file_actions_init()
  • posix_spawnattr_destroy()
  • posix_spawnattr_getflags()
  • posix_spawnattr_getpgroup()
  • posix_spawnattr_getschedparam()
  • posix_spawnattr_getschedpolicy()
  • posix_spawnattr_getsigdefault()
  • posix_spawnattr_getsigmask()
  • posix_spawnattr_init()
  • posix_spawnattr_setflags()
  • posix_spawnattr_setpgroup()
  • posix_spawnattr_setschedparam()
  • posix_spawnattr_setschedpolicy()
  • posix_spawnattr_setsigdefault()
  • posix_spawnattr_setsigmask()
  • posix_spawnp()

4.38. <stdarg.h>

The following methods and variables in <stdarg.h> are supported:

  • va_arg()
  • va_copy()
  • va_end()
  • va_start()

4.39. <stddef.h>

The following methods and variables in <stddef.h> are supported:

  • offsetof()

4.40. <stdio.h>

The following methods and variables in <stdio.h> are supported:

  • clearerr()
  • ctermid()
  • dprintf()
  • fclose()
  • fdopen()
  • feof()
  • ferror()
  • fflush()
  • fgetc()
  • fgetpos()
  • fgets()
  • fileno()
  • flockfile()
  • fmemopen()
  • fopen()
  • fprintf()
  • fputc()
  • fputs()
  • fread()
  • freopen()
  • fscanf()
  • fseek()
  • fseeko()
  • fsetpos()
  • ftell()
  • ftello()
  • ftrylockfile()
  • funlockfile()
  • fwrite()
  • getc()
  • getc_unlocked()
  • getchar()
  • getchar_unlocked()
  • gets()
  • open_memstream()
  • perror()
  • printf()
  • putc()
  • putc_unlocked()
  • putchar()
  • putchar_unlocked()
  • puts()
  • remove()
  • rename()
  • rewind()
  • scanf()
  • setbuf()
  • setvbuf()
  • snprintf()
  • sprintf()
  • sscanf()
  • stderr
  • stdin
  • stdout
  • tempnam()
  • tmpfile()
  • tmpnam()
  • ungetc()
  • vdprintf()
  • vfprintf()
  • vfscanf()
  • vprintf()
  • vscanf()
  • vsnprintf()
  • vsprintf()
  • vsscanf()

The following methods and variables in <stdio.h> are not supported:

  • getdelim()
  • getline()
  • pclose()
  • popen()
  • renameat()

4.41. <stdlib.h>

The following methods and variables in <stdlib.h> are supported:

  • _Exit()
  • a64l()
  • abort()
  • abs()
  • atexit()
  • atof()
  • atoi()
  • atol()
  • atoll()
  • bsearch()
  • calloc()
  • div()
  • drand48()
  • erand48()
  • exit()
  • free()
  • getenv()
  • getsubopt()
  • jrand48()
  • l64a()
  • labs()
  • lcong48()
  • ldiv()
  • llabs()
  • lldiv()
  • lrand48()
  • malloc()
  • mblen()
  • mbstowcs()
  • mbtowc()
  • mkdtemp()
  • mkstemp()
  • mrand48()
  • nrand48()
  • posix_memalign()
  • putenv()
  • qsort()
  • rand()
  • rand_r()
  • random()
  • realloc()
  • realpath()
  • seed48()
  • setenv()
  • srand()
  • srand48()
  • srandom()
  • strtod()
  • strtof()
  • strtol()
  • strtold()
  • strtoll()
  • strtoul()
  • strtoull()
  • unsetenv()
  • wcstombs()
  • wctomb()

The following methods in <stdlib.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • system()

The following methods and variables in <stdlib.h> are not supported:

  • grantpt()
  • initstate()
  • ptsname()
  • setkey()
  • setstate()
  • unlockpt()

4.42. <string.h>

The following methods and variables in <string.h> are supported:

  • memccpy()
  • memchr()
  • memcmp()
  • memcpy()
  • memmove()
  • memset()
  • stpcpy()
  • stpncpy()
  • strcat()
  • strchr()
  • strcmp()
  • strcoll()
  • strcoll_l()
  • strcpy()
  • strcspn()
  • strdup()
  • strerror()
  • strerror_l()
  • strerror_r()
  • strlen()
  • strncat()
  • strncmp()
  • strncpy()
  • strndup()
  • strnlen()
  • strpbrk()
  • strrchr()
  • strsignal()
  • strspn()
  • strstr()
  • strtok()
  • strtok_r()
  • strxfrm()
  • strxfrm_l()

4.43. <strings.h>

The following methods and variables in <strings.h> are supported:

  • ffs()
  • strcasecmp()
  • strcasecmp_l()
  • strncasecmp()
  • strncasecmp_l()

4.44. <stropts.h>

The following methods and variables in <stropts.h> are supported:

  • ioctl()

The following methods and variables in <stropts.h> are not supported:

  • fattach()
  • fdetach()
  • getmsg()
  • getpmsg()
  • isastream()
  • putmsg()
  • putpmsg()

4.45. <sys/ipc.h>

The following methods and variables in <sys/ipc.h> are not supported:

  • ftok()

4.46. <sys/mman.h>

The following methods and variables in <sys/mman.h> are supported:

  • mlock()
  • mlockall()
  • mmap()
  • mprotect()
  • msync()
  • munlock()
  • munlockall()
  • munmap()
  • posix_madvise()
  • shm_open()
  • shm_unlink()

The following methods and variables in <sys/mman.h> are not supported:

  • posix_mem_offset()
  • posix_typed_mem_get_info()
  • posix_typed_mem_open()

4.47. <sys/msg.h>

The following methods and variables in <sys/msg.h> are not supported:

  • msgctl()
  • msgget()
  • msgrcv()
  • msgsnd()

4.48. <sys/resource.h>

The following methods and variables in <sys/resource.h> are supported:

  • getrusage()

The following methods and variables in <sys/resource.h> are not supported:

  • getpriority()
  • getrlimit()
  • setpriority()
  • setrlimit()

4.49. <sys/select.h>

The following methods and variables in <sys/select.h> are supported:

  • FD_CLR()
  • FD_ISSET()
  • FD_SET()
  • FD_ZERO()
  • select()

The following methods and variables in <sys/select.h> are not supported:

  • pselect()

4.50. <sys/sem.h>

The following methods and variables in <sys/sem.h> are not supported:

  • semctl()
  • semget()
  • semop()

4.51. <sys/shm.h>

The following methods and variables in <sys/shm.h> are not supported:

  • shmat()
  • shmctl()
  • shmdt()
  • shmget()

4.52. <sys/socket.h>

The following methods and variables in <sys/socket.h> are supported:

  • accept()
  • bind()
  • connect()
  • getpeername()
  • getsockname()
  • getsockopt()
  • listen()
  • recv()
  • recvfrom()
  • recvmsg()
  • send()
  • sendmsg()
  • sendto()
  • setsockopt()
  • shutdown()
  • socket()
  • socketpair()

The following methods and variables in <sys/socket.h> are not supported:

  • sockatmark()

4.53. <sys/stat.h>

The following methods and variables in <sys/stat.h> are supported:

  • chmod()
  • fchmod()
  • fstat()
  • lstat()
  • mkdir()
  • mkfifo()
  • mknod()
  • stat()
  • umask()

The following methods and variables in <sys/stat.h> are not supported:

  • fchmodat()
  • fstatat()
  • futimens()
  • mkdirat()
  • mkfifoat()
  • mknodat()
  • utimensat()

4.54. <sys/statvfs.h>

The following methods and variables in <sys/statvfs.h> are supported:

  • statvfs()

The following methods and variables in <sys/statvfs.h> are not supported:

  • fstatvfs()

4.55. <sys/time.h>

The following methods and variables in <sys/time.h> are supported:

  • gettimeofday()
  • times()
  • utimes()

The following methods in <sys/time.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • getitimer()
  • setitimer()

4.56. <sys/uio.h>

The following methods and variables in <sys/uio.h> are supported:

  • readv()
  • writev()

4.57. <sys/utsname.h>

The following methods and variables in <sys/utsname.h> are supported:

  • uname()

4.58. <sys/wait.h>

The following methods and variables in <sys/wait.h> are supported:

  • wait()
  • waitpid()

The following methods and variables in <sys/wait.h> are not supported:

  • waitid()

4.59. <syslog.h>

The following methods and variables in <syslog.h> are not supported:

  • closelog()
  • openlog()
  • setlogmask()
  • syslog()

4.60. <termios.h>

The following methods and variables in <termios.h> are supported:

  • cfgetispeed()
  • cfgetospeed()
  • cfsetispeed()
  • cfsetospeed()
  • tcdrain()
  • tcflow()
  • tcflush()
  • tcgetattr()
  • tcsendbreak()
  • tcsetattr()

The following methods and variables in <termios.h> are not supported:

  • tcgetsid()

4.61. <time.h>

The following methods and variables in <time.h> are supported:

  • asctime()
  • asctime_r()
  • clock()
  • clock_getres()
  • clock_gettime()
  • clock_nanosleep()
  • clock_settime()
  • ctime()
  • ctime_r()
  • difftime()
  • gmtime()
  • gmtime_r()
  • localtime()
  • localtime_r()
  • mktime()
  • nanosleep()
  • strftime()
  • strftime_l()
  • strptime()
  • time()
  • timer_create()
  • timer_delete()
  • timer_getoverrun()
  • timer_gettime()
  • timer_settime()
  • timezone
  • tzname
  • tzset()

The following methods in <time.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • clock_getcpuclockid()

The following methods and variables in <time.h> are not supported:

  • daylight
  • getdate()
  • getdate_err

4.62. <trace.h>

The following methods and variables in <trace.h> are not supported:

  • posix_trace_attr_destroy()
  • posix_trace_attr_getclockres()
  • posix_trace_attr_getcreatetime()
  • posix_trace_attr_getgenversion()
  • posix_trace_attr_getinherited()
  • posix_trace_attr_getlogfullpolicy()
  • posix_trace_attr_getlogsize()
  • posix_trace_attr_getmaxdatasize()
  • posix_trace_attr_getmaxsystemeventsize()
  • posix_trace_attr_getmaxusereventsize()
  • posix_trace_attr_getname()
  • posix_trace_attr_getstreamfullpolicy()
  • posix_trace_attr_getstreamsize()
  • posix_trace_attr_init()
  • posix_trace_attr_setinherited()
  • posix_trace_attr_setlogfullpolicy()
  • posix_trace_attr_setlogsize()
  • posix_trace_attr_setmaxdatasize()
  • posix_trace_attr_setname()
  • posix_trace_attr_setstreamfullpolicy()
  • posix_trace_attr_setstreamsize()
  • posix_trace_clear()
  • posix_trace_close()
  • posix_trace_create()
  • posix_trace_create_withlog()
  • posix_trace_event()
  • posix_trace_eventid_equal()
  • posix_trace_eventid_get_name()
  • posix_trace_eventid_open()
  • posix_trace_eventset_add()
  • posix_trace_eventset_del()
  • posix_trace_eventset_empty()
  • posix_trace_eventset_fill()
  • posix_trace_eventset_ismember()
  • posix_trace_eventtypelist_getnext_id()
  • posix_trace_eventtypelist_rewind()
  • posix_trace_flush()
  • posix_trace_get_attr()
  • posix_trace_get_filter()
  • posix_trace_get_status()
  • posix_trace_getnext_event()
  • posix_trace_open()
  • posix_trace_rewind()
  • posix_trace_set_filter()
  • posix_trace_shutdown()
  • posix_trace_start()
  • posix_trace_stop()
  • posix_trace_timedgetnext_event()
  • posix_trace_trid_eventid_open()
  • posix_trace_trygetnext_event()

4.63. <ulimit.h>

The following methods and variables in <ulimit.h> are not supported:

  • ulimit()

4.64. <unistd.h>

The following methods and variables in <unistd.h> are supported:

  • _exit()
  • access()
  • alarm()
  • chdir()
  • chown()
  • close()
  • dup()
  • dup2()
  • environ
  • fchdir()
  • fchown()
  • fdatasync()
  • fpathconf()
  • fsync()
  • ftruncate()
  • getcwd()
  • getegid()
  • geteuid()
  • getgid()
  • getgroups()
  • gethostname()
  • getlogin()
  • getlogin_r()
  • getopt()
  • getpgrp()
  • getpid()
  • getppid()
  • getuid()
  • isatty()
  • lchown()
  • link()
  • lseek()
  • optarg
  • opterr
  • optind
  • optopt
  • pathconf()
  • pause()
  • pipe()
  • pread()
  • pwrite()
  • read()
  • readlink()
  • rmdir()
  • setegid()
  • seteuid()
  • setgid()
  • setpgid()
  • setsid()
  • setuid()
  • sleep()
  • swab()
  • symlink()
  • sync()
  • sysconf()
  • tcgetpgrp()
  • tcsetpgrp()
  • truncate()
  • ttyname()
  • ttyname_r()
  • unlink()
  • write()

The following methods in <unistd.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • execl()
  • execle()
  • execlp()
  • execv()
  • execve()
  • execvp()
  • fork()

The following methods and variables in <unistd.h> are not supported:

  • confstr()
  • crypt()
  • encrypt()
  • faccessat()
  • fchownat()
  • fexecve()
  • gethostid()
  • getpgid()
  • getsid()
  • linkat()
  • lockf()
  • nice()
  • readlinkat()
  • setpgrp()
  • setregid()
  • setreuid()
  • symlinkat()
  • unlinkat()

4.65. <utime.h>

The following methods and variables in <utime.h> are supported:

  • utime()

4.66. <utmpx.h>

The following methods and variables in <utmpx.h> are not supported:

  • endutxent()
  • getutxent()
  • getutxid()
  • getutxline()
  • pututxline()
  • setutxent()

4.67. <wchar.h>

The following methods and variables in <wchar.h> are supported:

  • btowc()
  • fgetwc()
  • fgetws()
  • fputwc()
  • fputws()
  • fwide()
  • fwprintf()
  • fwscanf()
  • getwc()
  • getwchar()
  • mbrlen()
  • mbrtowc()
  • mbsinit()
  • mbsnrtowcs()
  • mbsrtowcs()
  • open_wmemstream()
  • putwc()
  • putwchar()
  • swprintf()
  • swscanf()
  • ungetwc()
  • vfwprintf()
  • vfwscanf()
  • vswprintf()
  • vswscanf()
  • vwprintf()
  • vwscanf()
  • wcpcpy()
  • wcpncpy()
  • wcrtomb()
  • wcscasecmp()
  • wcscasecmp_l()
  • wcscat()
  • wcschr()
  • wcscmp()
  • wcscoll()
  • wcscoll_l()
  • wcscpy()
  • wcscspn()
  • wcsdup()
  • wcsftime()
  • wcslen()
  • wcsncasecmp()
  • wcsncat()
  • wcsncmp()
  • wcsncpy()
  • wcsnlen()
  • wcsnrtombs()
  • wcspbrk()
  • wcsrchr()
  • wcsrtombs()
  • wcsspn()
  • wcsstr()
  • wcstod()
  • wcstof()
  • wcstok()
  • wcstol()
  • wcstold()
  • wcstoll()
  • wcstoul()
  • wcstoull()
  • wcswidth()
  • wcsxfrm()
  • wcsxfrm_l()
  • wctob()
  • wcwidth()
  • wmemchr()
  • wmemcmp()
  • wmemcpy()
  • wmemmove()
  • wmemset()
  • wprintf()
  • wscanf()

The following methods and variables in <wchar.h> are not supported:

  • wcsncasemcp_l()

4.68. <wctype.h>

The following methods and variables in <wctype.h> are supported:

  • iswalnum()
  • iswalnum_l()
  • iswalpha()
  • iswalpha_l()
  • iswblank()
  • iswblank_l()
  • iswcntrl()
  • iswcntrl_l()
  • iswctype()
  • iswctype_l()
  • iswdigit()
  • iswdigit_l()
  • iswgraph()
  • iswgraph_l()
  • iswlower()
  • iswlower_l()
  • iswprint()
  • iswprint_l()
  • iswpunct()
  • iswpunct_l()
  • iswspace()
  • iswspace_l()
  • iswupper()
  • iswupper_l()
  • iswxdigit()
  • iswxdigit_l()
  • towctrans()
  • towctrans_l()
  • towlower()
  • towlower_l()
  • towupper()
  • towupper_l()
  • wctrans()
  • wctrans_l()
  • wctype()
  • wctype_l()

4.69. <wordexp.h>

The following methods and variables in <wordexp.h> are not supported:

  • wordexp()
  • wordfree()

5. POSIX-2003

This chapter has a subsection per header file to detail the methods provided by RTEMS that are in that header file.

5.1. Summary

The follow table summarizes alignment with the POSIX-2003 standard:

Supported 897
ENOSYS 19
Not supported 190

5.2. <aio.h>

The following methods and variables in <aio.h> are supported:

  • aio_cancel()
  • aio_error()
  • aio_fsync()
  • aio_read()
  • aio_return()
  • aio_write()

The following methods in <aio.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • aio_suspend()
  • lio_listio()

5.3. <arpa/inet.h>

The following methods and variables in <arpa/inet.h> are supported:

  • htonl()
  • htons()
  • inet_addr()
  • inet_ntoa()
  • inet_ntop()
  • inet_pton()
  • ntohl()
  • ntohs()

5.4. <assert.h>

The following methods and variables in <assert.h> are supported:

  • assert()

5.5. <complex.h>

The following methods and variables in <complex.h> are supported:

  • cabs()
  • cabsf()
  • cabsl()
  • cacos()
  • cacosf()
  • cacosh()
  • cacoshf()
  • cacoshl()
  • cacosl()
  • carg()
  • cargf()
  • cargl()
  • casin()
  • casinf()
  • casinh()
  • casinhf()
  • casinhl()
  • casinl()
  • catan()
  • catanf()
  • catanh()
  • catanhf()
  • catanhl()
  • catanl()
  • ccos()
  • ccosf()
  • ccosh()
  • ccoshf()
  • ccoshl()
  • ccosl()
  • cexp()
  • cexpf()
  • cexpl()
  • cimag()
  • cimagf()
  • cimagl()
  • clog()
  • clogf()
  • clogl()
  • conj()
  • conjf()
  • conjl()
  • cpow()
  • cpowf()
  • cpowl()
  • cproj()
  • cprojf()
  • cprojl()
  • creal()
  • crealf()
  • creall()
  • csin()
  • csinf()
  • csinh()
  • csinhf()
  • csinhl()
  • csinl()
  • csqrt()
  • csqrtf()
  • csqrtl()
  • ctan()
  • ctanf()
  • ctanh()
  • ctanhf()
  • ctanhl()
  • ctanl()

5.6. <ctype.h>

The following methods and variables in <ctype.h> are supported:

  • _tolower()
  • _toupper()
  • isalnum()
  • isalpha()
  • isascii()
  • isblank()
  • iscntrl()
  • isdigit()
  • isgraph()
  • islower()
  • islower_l()
  • isprint()
  • ispunct()
  • isspace()
  • isupper()
  • isxdigit()
  • toascii()
  • tolower()
  • toupper()

5.7. <dirent.h>

The following methods and variables in <dirent.h> are supported:

  • closedir()
  • opendir()
  • readdir()
  • readdir_r()
  • rewinddir()
  • seekdir()

5.8. <dlfcn.h>

The following methods and variables in <dlfcn.h> are supported:

  • dlclose()
  • dlerror()
  • dlopen()
  • dlsym()

5.9. <errno.h>

The following methods and variables in <errno.h> are supported:

  • errno

5.10. <fcntl.h>

The following methods and variables in <fcntl.h> are supported:

  • creat()
  • fcntl()
  • open()

The following methods and variables in <fcntl.h> are not supported:

  • posix_fadvise()
  • posix_fallocate()
  • posix_openpt()

5.11. <fenv.h>

The following methods and variables in <fenv.h> are not supported:

  • feclearexcept()
  • fegetenv()
  • fegetexceptflag()
  • fegetround()
  • feholdexcept()
  • feraiseexcept()
  • fesetenv()
  • fesetexceptflag()
  • fesetround()
  • fetestexcept()
  • feupdateenv()

5.12. <fmtmsg.h>

The following methods and variables in <fmtmsg.h> are not supported:

  • fmtmsg()

5.13. <fnmatch.h>

The following methods and variables in <fnmatch.h> are supported:

  • fnmatch()

5.14. <ftw.h>

The following methods and variables in <ftw.h> are not supported:

  • ftw()
  • nftw()

5.15. <glob.h>

The following methods and variables in <glob.h> are supported:

  • glob()
  • globfree()

5.16. <grp.h>

The following methods and variables in <grp.h> are supported:

  • endgrent()
  • getgrent()
  • getgrgid()
  • getgrgid_r()
  • getgrnam()
  • getgrnam_r()
  • setgrent()

5.17. <iconv.h>

The following methods and variables in <iconv.h> are supported:

  • iconv()
  • iconv_close()
  • iconv_open()

5.18. <inttypes.h>

The following methods and variables in <inttypes.h> are supported:

  • imaxabs()
  • imaxdiv()
  • strtoimax()
  • strtoumax()
  • wcstoimax()
  • wcstoumax()

5.19. <langinfo.h>

The following methods and variables in <langinfo.h> are supported:

  • nl_langinfo()

5.20. <libgen.h>

The following methods and variables in <libgen.h> are supported:

  • basename()
  • dirname()

5.21. <locale.h>

The following methods and variables in <locale.h> are supported:

  • localeconv()
  • setlocale()

5.22. <math.h>

The following methods and variables in <math.h> are supported:

  • acos()
  • acosf()
  • acosh()
  • acoshf()
  • acoshl()
  • acosl()
  • asin()
  • asinf()
  • asinh()
  • asinhf()
  • asinhl()
  • asinl()
  • atan()
  • atan2()
  • atan2f()
  • atan2l()
  • atanf()
  • atanh()
  • atanhf()
  • atanhl()
  • atanl()
  • cbrt()
  • cbrtf()
  • cbrtl()
  • ceil()
  • ceilf()
  • ceill()
  • copysign()
  • copysignf()
  • copysignl()
  • cos()
  • cosf()
  • cosh()
  • coshf()
  • coshl()
  • cosl()
  • erf()
  • erfc()
  • erfcf()
  • erfcl()
  • erff()
  • erfl()
  • exp()
  • exp2()
  • exp2f()
  • exp2l()
  • expf()
  • expl()
  • expm1()
  • expm1f()
  • expm1l()
  • fabs()
  • fabsf()
  • fabsl()
  • fdim()
  • fdimf()
  • fdiml()
  • floor()
  • floorf()
  • floorl()
  • fma()
  • fmaf()
  • fmal()
  • fmax()
  • fmaxf()
  • fmaxl()
  • fmin()
  • fminf()
  • fminl()
  • fmod()
  • fmodf()
  • fmodl()
  • frexp()
  • frexpf()
  • frexpl()
  • hypot()
  • hypotf()
  • hypotl()
  • ilogb()
  • ilogbf()
  • ilogbl()
  • isinf()
  • isnan()
  • ldexp()
  • ldexpf()
  • ldexpl()
  • lgamma()
  • lgammaf()
  • lgammal()
  • llrint()
  • llrintf()
  • llrintl()
  • llround()
  • llroundf()
  • llroundl()
  • log()
  • log10()
  • log10f()
  • log10l()
  • log1p()
  • log1pf()
  • log1pl()
  • log2()
  • log2f()
  • log2l()
  • logb()
  • logbf()
  • logbl()
  • logf()
  • logl()
  • lrint()
  • lrintf()
  • lrintl()
  • lround()
  • lroundf()
  • lroundl()
  • modf()
  • modff()
  • modfl()
  • nan()
  • nanf()
  • nanl()
  • nearbyint()
  • nearbyintf()
  • nearbyintl()
  • nextafter()
  • nextafterf()
  • nextafterl()
  • nexttoward()
  • nexttowardl()
  • pow()
  • powf()
  • powl()
  • remainder()
  • remainderf()
  • remainderl()
  • remquo()
  • remquof()
  • remquol()
  • rint()
  • rintf()
  • rintl()
  • round()
  • roundf()
  • roundl()
  • scalb()
  • scalbln()
  • scalblnf()
  • scalblnl()
  • scalbn()
  • scalbnf()
  • scalbnl()
  • sin()
  • sinf()
  • sinh()
  • sinhf()
  • sinhl()
  • sinl()
  • sqrt()
  • sqrtf()
  • sqrtl()
  • tan()
  • tanf()
  • tanh()
  • tanhf()
  • tanhl()
  • tanl()
  • tgamma()
  • tgammaf()
  • tgammal()
  • trunc()
  • truncf()
  • truncl()

The following methods and variables in <math.h> are not supported:

  • fpclassify()
  • isfinite()
  • isgreater()
  • isgreaterequal()
  • isless()
  • islessequal()
  • islessgreater()
  • isnormal()
  • isunordered()
  • j0()
  • j1()
  • jn()
  • nexttowardf()
  • signbit()
  • signgam
  • y0()
  • y1()
  • yn()

5.23. <monetary.h>

The following methods and variables in <monetary.h> are not supported:

  • strfmon()

5.24. <mqueue.h>

The following methods and variables in <mqueue.h> are supported:

  • mq_close()
  • mq_getattr()
  • mq_notify()
  • mq_open()
  • mq_receive()
  • mq_send()
  • mq_setattr()
  • mq_timedreceive()
  • mq_timedsend()
  • mq_unlink()

5.25. <net/if.h>

The following methods and variables in <net/if.h> are supported:

  • if_freenameindex()
  • if_indextoname()
  • if_nameindex()
  • if_nametoindex()

5.26. <netdb.h>

The following methods and variables in <netdb.h> are supported:

  • endhostent()
  • endnetent()
  • endprotoent()
  • endservent()
  • freeaddrinfo()
  • gai_strerror()
  • getaddrinfo()
  • gethostbyaddr()
  • gethostbyname()
  • gethostent()
  • getnameinfo()
  • getnetbyaddr()
  • getnetbyname()
  • getnetent()
  • getprotobyname()
  • getprotobynumber()
  • getprotoent()
  • getservbyname()
  • getservbyport()
  • getservent()
  • h_errno
  • sethostent()
  • setnetent()
  • setprotoent()
  • setservent()

5.27. <nl_types.h>

The following methods and variables in <nl_types.h> are not supported:

  • catclose()
  • catgets()
  • catopen()

5.28. <poll.h>

The following methods and variables in <poll.h> are not supported:

  • poll()

5.29. <pthread.h>

The following methods and variables in <pthread.h> are supported:

  • pthread_attr_destroy()
  • pthread_attr_getdetachstate()
  • pthread_attr_getguardsize()
  • pthread_attr_getinheritsched()
  • pthread_attr_getschedparam()
  • pthread_attr_getschedpolicy()
  • pthread_attr_getscope()
  • pthread_attr_getstack()
  • pthread_attr_getstackaddr()
  • pthread_attr_getstacksize()
  • pthread_attr_init()
  • pthread_attr_setdetachstate()
  • pthread_attr_setguardsize()
  • pthread_attr_setinheritsched()
  • pthread_attr_setschedparam()
  • pthread_attr_setschedpolicy()
  • pthread_attr_setscope()
  • pthread_attr_setstack()
  • pthread_attr_setstackaddr()
  • pthread_attr_setstacksize()
  • pthread_barrier_destroy()
  • pthread_barrier_init()
  • pthread_barrier_wait()
  • pthread_barrierattr_destroy()
  • pthread_barrierattr_getpshared()
  • pthread_barrierattr_init()
  • pthread_barrierattr_setpshared()
  • pthread_cancel()
  • pthread_cleanup_pop()
  • pthread_cleanup_push()
  • pthread_cond_broadcast()
  • pthread_cond_destroy()
  • pthread_cond_init()
  • pthread_cond_signal()
  • pthread_cond_timedwait()
  • pthread_cond_wait()
  • pthread_condattr_destroy()
  • pthread_condattr_getclock()
  • pthread_condattr_getpshared()
  • pthread_condattr_init()
  • pthread_condattr_setclock()
  • pthread_condattr_setpshared()
  • pthread_create()
  • pthread_detach()
  • pthread_equal()
  • pthread_exit()
  • pthread_getconcurrency()
  • pthread_getschedparam()
  • pthread_getspecific()
  • pthread_join()
  • pthread_key_create()
  • pthread_key_delete()
  • pthread_mutex_destroy()
  • pthread_mutex_getprioceiling()
  • pthread_mutex_init()
  • pthread_mutex_lock()
  • pthread_mutex_setprioceiling()
  • pthread_mutex_timedlock()
  • pthread_mutex_trylock()
  • pthread_mutex_unlock()
  • pthread_mutexattr_destroy()
  • pthread_mutexattr_getprioceiling()
  • pthread_mutexattr_getprotocol()
  • pthread_mutexattr_getpshared()
  • pthread_mutexattr_gettype()
  • pthread_mutexattr_init()
  • pthread_mutexattr_setprioceiling()
  • pthread_mutexattr_setprotocol()
  • pthread_mutexattr_setpshared()
  • pthread_mutexattr_settype()
  • pthread_once()
  • pthread_rwlock_destroy()
  • pthread_rwlock_init()
  • pthread_rwlock_rdlock()
  • pthread_rwlock_timedrdlock()
  • pthread_rwlock_timedwrlock()
  • pthread_rwlock_tryrdlock()
  • pthread_rwlock_trywrlock()
  • pthread_rwlock_unlock()
  • pthread_rwlock_wrlock()
  • pthread_rwlockattr_destroy()
  • pthread_rwlockattr_getpshared()
  • pthread_rwlockattr_init()
  • pthread_rwlockattr_setpshared()
  • pthread_self()
  • pthread_setcancelstate()
  • pthread_setcanceltype()
  • pthread_setconcurrency()
  • pthread_setschedparam()
  • pthread_setschedprio()
  • pthread_setspecific()
  • pthread_spin_destroy()
  • pthread_spin_init()
  • pthread_spin_lock()
  • pthread_spin_trylock()
  • pthread_spin_unlock()
  • pthread_testcancel()

The following methods in <pthread.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • pthread_atfork()
  • pthread_getcpuclockid()

5.30. <pwd.h>

The following methods and variables in <pwd.h> are supported:

  • endpwent()
  • getpwent()
  • getpwnam()
  • getpwnam_r()
  • getpwuid()
  • getpwuid_r()
  • setpwent()

5.31. <regex.h>

The following methods and variables in <regex.h> are supported:

  • regcomp()
  • regerror()
  • regexec()
  • regfree()

5.32. <sched.h>

The following methods and variables in <sched.h> are supported:

  • sched_get_priority_max()
  • sched_get_priority_min()
  • sched_rr_get_interval()
  • sched_yield()

The following methods in <sched.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • sched_getparam()
  • sched_getscheduler()
  • sched_setparam()
  • sched_setscheduler()

5.33. <search.h>

The following methods and variables in <search.h> are supported:

  • hcreate()
  • hdestroy()
  • hsearch()
  • tdelete()
  • tfind()
  • tsearch()
  • twalk()

The following methods and variables in <search.h> are not supported:

  • insque()
  • lfind()
  • lsearch()
  • remque()

5.34. <semaphore.h>

The following methods and variables in <semaphore.h> are supported:

  • sem_close()
  • sem_destroy()
  • sem_getvalue()
  • sem_init()
  • sem_open()
  • sem_post()
  • sem_timedwait()
  • sem_trywait()
  • sem_unlink()
  • sem_wait()

5.35. <setjmp.h>

The following methods and variables in <setjmp.h> are supported:

  • longjmp()
  • setjmp()
  • siglongjmp()
  • sigsetjmp()

The following methods and variables in <setjmp.h> are not supported:

  • _longjmp()
  • _setjmp()

5.36. <signal.h>

The following methods and variables in <signal.h> are supported:

  • bsd_signal()
  • kill()
  • pthread_kill()
  • pthread_sigmask()
  • raise()
  • sigaction()
  • sigaddset()
  • sigdelset()
  • sigemptyset()
  • sigfillset()
  • sigismember()
  • signal()
  • sigpending()
  • sigprocmask()
  • sigqueue()
  • sigsuspend()
  • sigtimedwait()
  • sigwait()
  • sigwaitinfo()

The following methods and variables in <signal.h> are not supported:

  • killpg()
  • sighold()
  • sigignore()
  • siginterrupt()
  • sigpause()
  • sigrelse()
  • sigset()

5.37. <spawn.h>

The following methods and variables in <spawn.h> are not supported:

  • posix_spawn()
  • posix_spawn_file_actions_addclose()
  • posix_spawn_file_actions_adddup2()
  • posix_spawn_file_actions_addopen()
  • posix_spawn_file_actions_destroy()
  • posix_spawn_file_actions_init()
  • posix_spawnattr_destroy()
  • posix_spawnattr_getflags()
  • posix_spawnattr_getpgroup()
  • posix_spawnattr_getschedparam()
  • posix_spawnattr_getschedpolicy()
  • posix_spawnattr_getsigdefault()
  • posix_spawnattr_getsigmask()
  • posix_spawnattr_init()
  • posix_spawnattr_setflags()
  • posix_spawnattr_setpgroup()
  • posix_spawnattr_setschedparam()
  • posix_spawnattr_setschedpolicy()
  • posix_spawnattr_setsigdefault()
  • posix_spawnattr_setsigmask()
  • posix_spawnp()

5.38. <stdarg.h>

The following methods and variables in <stdarg.h> are supported:

  • va_arg()
  • va_copy()
  • va_end()
  • va_start()

5.39. <stddef.h>

The following methods and variables in <stddef.h> are supported:

  • offsetof()

5.40. <stdio.h>

The following methods and variables in <stdio.h> are supported:

  • clearerr()
  • ctermid()
  • fclose()
  • fdopen()
  • feof()
  • ferror()
  • fflush()
  • fgetc()
  • fgetpos()
  • fgets()
  • fileno()
  • flockfile()
  • fopen()
  • fprintf()
  • fputc()
  • fputs()
  • fread()
  • freopen()
  • fscanf()
  • fseek()
  • fseeko()
  • fsetpos()
  • ftell()
  • ftello()
  • ftrylockfile()
  • funlockfile()
  • fwrite()
  • getc()
  • getc_unlocked()
  • getchar()
  • getchar_unlocked()
  • gets()
  • perror()
  • printf()
  • putc()
  • putc_unlocked()
  • putchar()
  • putchar_unlocked()
  • puts()
  • remove()
  • rename()
  • rewind()
  • scanf()
  • setbuf()
  • setvbuf()
  • snprintf()
  • sprintf()
  • sscanf()
  • stderr
  • stdin
  • stdout
  • tempnam()
  • tmpfile()
  • tmpnam()
  • ungetc()
  • vfprintf()
  • vfscanf()
  • vprintf()
  • vscanf()
  • vsnprintf()
  • vsprintf()
  • vsscanf()

The following methods and variables in <stdio.h> are not supported:

  • pclose()
  • popen()

5.41. <stdlib.h>

The following methods and variables in <stdlib.h> are supported:

  • _Exit()
  • a64l()
  • abort()
  • abs()
  • atexit()
  • atof()
  • atoi()
  • atol()
  • atoll()
  • bsearch()
  • calloc()
  • div()
  • drand48()
  • ecvt()
  • erand48()
  • exit()
  • fcvt()
  • free()
  • gcvt()
  • getenv()
  • getsubopt()
  • jrand48()
  • l64a()
  • labs()
  • lcong48()
  • ldiv()
  • llabs()
  • lldiv()
  • lrand48()
  • malloc()
  • mblen()
  • mbstowcs()
  • mbtowc()
  • mkstemp()
  • mrand48()
  • nrand48()
  • posix_memalign()
  • putenv()
  • qsort()
  • rand()
  • rand_r()
  • random()
  • realloc()
  • realpath()
  • seed48()
  • setenv()
  • srand()
  • srand48()
  • srandom()
  • strtod()
  • strtof()
  • strtol()
  • strtold()
  • strtoll()
  • strtoul()
  • strtoull()
  • unsetenv()
  • wcstombs()
  • wctomb()

The following methods in <stdlib.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • system()

The following methods and variables in <stdlib.h> are not supported:

  • grantpt()
  • initstate()
  • ptsname()
  • setkey()
  • setstate()
  • unlockpt()

5.42. <string.h>

The following methods and variables in <string.h> are supported:

  • memccpy()
  • memchr()
  • memcmp()
  • memcpy()
  • memmove()
  • memset()
  • strcat()
  • strchr()
  • strcmp()
  • strcoll()
  • strcpy()
  • strcspn()
  • strdup()
  • strerror()
  • strerror_r()
  • strlen()
  • strncat()
  • strncmp()
  • strncpy()
  • strpbrk()
  • strrchr()
  • strspn()
  • strstr()
  • strtok()
  • strtok_r()
  • strxfrm()

5.43. <strings.h>

The following methods and variables in <strings.h> are supported:

  • bcmp()
  • bcopy()
  • ffs()
  • index()
  • rindex()
  • strcasecmp()
  • strncasecmp()

5.44. <stropts.h>

The following methods and variables in <stropts.h> are supported:

  • ioctl()

The following methods and variables in <stropts.h> are not supported:

  • fattach()
  • fdetach()
  • getmsg()
  • getpmsg()
  • isastream()
  • putmsg()
  • putpmsg()

5.45. <sys/ipc.h>

The following methods and variables in <sys/ipc.h> are not supported:

  • ftok()

5.46. <sys/mman.h>

The following methods and variables in <sys/mman.h> are supported:

  • mlock()
  • mlockall()
  • mmap()
  • mprotect()
  • msync()
  • munlock()
  • munlockall()
  • munmap()
  • posix_madvise()
  • shm_open()
  • shm_unlink()

The following methods and variables in <sys/mman.h> are not supported:

  • posix_mem_offset()
  • posix_typed_mem_get_info()
  • posix_typed_mem_open()

5.47. <sys/msg.h>

The following methods and variables in <sys/msg.h> are not supported:

  • msgctl()
  • msgget()
  • msgrcv()
  • msgsnd()

5.48. <sys/resource.h>

The following methods and variables in <sys/resource.h> are supported:

  • getrusage()

The following methods and variables in <sys/resource.h> are not supported:

  • getpriority()
  • getrlimit()
  • setpriority()
  • setrlimit()

5.49. <sys/select.h>

The following methods and variables in <sys/select.h> are supported:

  • FD_CLR()
  • FD_ISSET()
  • FD_SET()
  • FD_ZERO()
  • select()

The following methods and variables in <sys/select.h> are not supported:

  • pselect()

5.50. <sys/sem.h>

The following methods and variables in <sys/sem.h> are not supported:

  • semctl()
  • semget()
  • semop()

5.51. <sys/shm.h>

The following methods and variables in <sys/shm.h> are not supported:

  • shmat()
  • shmctl()
  • shmdt()
  • shmget()

5.52. <sys/socket.h>

The following methods and variables in <sys/socket.h> are supported:

  • accept()
  • bind()
  • connect()
  • getpeername()
  • getsockname()
  • getsockopt()
  • listen()
  • recv()
  • recvfrom()
  • recvmsg()
  • send()
  • sendmsg()
  • sendto()
  • setsockopt()
  • shutdown()
  • socket()
  • socketpair()

The following methods and variables in <sys/socket.h> are not supported:

  • sockatmark()

5.53. <sys/stat.h>

The following methods and variables in <sys/stat.h> are supported:

  • chmod()
  • fchmod()
  • fstat()
  • lstat()
  • mkdir()
  • mkfifo()
  • mknod()
  • stat()
  • umask()

5.54. <sys/statvfs.h>

The following methods and variables in <sys/statvfs.h> are supported:

  • statvfs()

The following methods and variables in <sys/statvfs.h> are not supported:

  • fstatvfs()

5.55. <sys/time.h>

The following methods and variables in <sys/time.h> are supported:

  • gettimeofday()
  • times()
  • utimes()

The following methods in <sys/time.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • getitimer()
  • setitimer()

5.56. <sys/uio.h>

The following methods and variables in <sys/uio.h> are supported:

  • readv()
  • writev()

5.57. <sys/utsname.h>

The following methods and variables in <sys/utsname.h> are supported:

  • uname()

5.58. <sys/wait.h>

The following methods and variables in <sys/wait.h> are supported:

  • wait()
  • waitpid()

The following methods and variables in <sys/wait.h> are not supported:

  • waitid()

5.59. <syslog.h>

The following methods and variables in <syslog.h> are not supported:

  • closelog()
  • openlog()
  • setlogmask()
  • syslog()

5.60. <termios.h>

The following methods and variables in <termios.h> are supported:

  • cfgetispeed()
  • cfgetospeed()
  • cfsetispeed()
  • cfsetospeed()
  • tcdrain()
  • tcflow()
  • tcflush()
  • tcgetattr()
  • tcsendbreak()
  • tcsetattr()

The following methods and variables in <termios.h> are not supported:

  • tcgetsid()

5.61. <time.h>

The following methods and variables in <time.h> are supported:

  • asctime()
  • asctime_r()
  • clock()
  • clock_getres()
  • clock_gettime()
  • clock_nanosleep()
  • clock_settime()
  • ctime()
  • ctime_r()
  • difftime()
  • gmtime()
  • gmtime_r()
  • localtime()
  • localtime_r()
  • mktime()
  • nanosleep()
  • strftime()
  • strptime()
  • time()
  • timer_create()
  • timer_delete()
  • timer_getoverrun()
  • timer_gettime()
  • timer_settime()
  • timezone
  • tzname
  • tzset()

The following methods in <time.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • clock_getcpuclockid()

The following methods and variables in <time.h> are not supported:

  • daylight
  • getdate()
  • getdate_err

5.62. <trace.h>

The following methods and variables in <trace.h> are not supported:

  • posix_trace_attr_destroy()
  • posix_trace_attr_getclockres()
  • posix_trace_attr_getcreatetime()
  • posix_trace_attr_getgenversion()
  • posix_trace_attr_getinherited()
  • posix_trace_attr_getlogfullpolicy()
  • posix_trace_attr_getlogsize()
  • posix_trace_attr_getmaxdatasize()
  • posix_trace_attr_getmaxsystemeventsize()
  • posix_trace_attr_getmaxusereventsize()
  • posix_trace_attr_getname()
  • posix_trace_attr_getstreamfullpolicy()
  • posix_trace_attr_getstreamsize()
  • posix_trace_attr_init()
  • posix_trace_attr_setinherited()
  • posix_trace_attr_setlogfullpolicy()
  • posix_trace_attr_setlogsize()
  • posix_trace_attr_setmaxdatasize()
  • posix_trace_attr_setname()
  • posix_trace_attr_setstreamfullpolicy()
  • posix_trace_attr_setstreamsize()
  • posix_trace_clear()
  • posix_trace_close()
  • posix_trace_create()
  • posix_trace_create_withlog()
  • posix_trace_event()
  • posix_trace_eventid_equal()
  • posix_trace_eventid_get_name()
  • posix_trace_eventid_open()
  • posix_trace_eventset_add()
  • posix_trace_eventset_del()
  • posix_trace_eventset_empty()
  • posix_trace_eventset_fill()
  • posix_trace_eventset_ismember()
  • posix_trace_eventtypelist_getnext_id()
  • posix_trace_eventtypelist_rewind()
  • posix_trace_flush()
  • posix_trace_get_attr()
  • posix_trace_get_filter()
  • posix_trace_get_status()
  • posix_trace_getnext_event()
  • posix_trace_open()
  • posix_trace_rewind()
  • posix_trace_set_filter()
  • posix_trace_shutdown()
  • posix_trace_start()
  • posix_trace_stop()
  • posix_trace_timedgetnext_event()
  • posix_trace_trid_eventid_open()
  • posix_trace_trygetnext_event()

5.63. <ulimit.h>

The following methods and variables in <ulimit.h> are not supported:

  • ulimit()

5.64. <unistd.h>

The following methods and variables in <unistd.h> are supported:

  • _exit()
  • access()
  • alarm()
  • chdir()
  • chown()
  • close()
  • dup()
  • dup2()
  • environ
  • fchdir()
  • fchown()
  • fdatasync()
  • fpathconf()
  • fsync()
  • ftruncate()
  • getcwd()
  • getegid()
  • geteuid()
  • getgid()
  • getgroups()
  • gethostname()
  • getlogin()
  • getlogin_r()
  • getopt()
  • getpgrp()
  • getpid()
  • getppid()
  • getuid()
  • isatty()
  • lchown()
  • link()
  • lseek()
  • optarg
  • opterr
  • optind
  • optopt
  • pathconf()
  • pause()
  • pipe()
  • pread()
  • pwrite()
  • read()
  • readlink()
  • rmdir()
  • setegid()
  • seteuid()
  • setgid()
  • setpgid()
  • setsid()
  • setuid()
  • sleep()
  • swab()
  • symlink()
  • sync()
  • sysconf()
  • tcgetpgrp()
  • tcsetpgrp()
  • truncate()
  • ttyname()
  • ttyname_r()
  • ualarm()
  • unlink()
  • usleep()
  • write()

The following methods in <unistd.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • execl()
  • execle()
  • execlp()
  • execv()
  • execve()
  • execvp()
  • fork()

The following methods and variables in <unistd.h> are not supported:

  • confstr()
  • crypt()
  • encrypt()
  • gethostid()
  • getpgid()
  • getsid()
  • lockf()
  • nice()
  • setpgrp()
  • setregid()
  • setreuid()

5.65. <utime.h>

The following methods and variables in <utime.h> are supported:

  • utime()

5.66. <utmpx.h>

The following methods and variables in <utmpx.h> are not supported:

  • endutxent()
  • getutxent()
  • getutxid()
  • getutxline()
  • pututxline()
  • setutxent()

5.67. <wchar.h>

The following methods and variables in <wchar.h> are supported:

  • btowc()
  • fgetwc()
  • fgetws()
  • fputwc()
  • fputws()
  • fwide()
  • fwprintf()
  • fwscanf()
  • getwc()
  • getwchar()
  • mbrlen()
  • mbrtowc()
  • mbsinit()
  • mbsrtowcs()
  • putwc()
  • putwchar()
  • swprintf()
  • swscanf()
  • ungetwc()
  • vfwprintf()
  • vfwscanf()
  • vswprintf()
  • vswscanf()
  • vwprintf()
  • vwscanf()
  • wcrtomb()
  • wcscat()
  • wcschr()
  • wcscmp()
  • wcscoll()
  • wcscpy()
  • wcscspn()
  • wcsftime()
  • wcslen()
  • wcsncat()
  • wcsncmp()
  • wcsncpy()
  • wcsnlen()
  • wcsnrtombs()
  • wcspbrk()
  • wcsrchr()
  • wcsrtombs()
  • wcsspn()
  • wcsstr()
  • wcstod()
  • wcstof()
  • wcstok()
  • wcstol()
  • wcstold()
  • wcstoll()
  • wcstoul()
  • wcstoull()
  • wcswidth()
  • wcsxfrm()
  • wctob()
  • wcwidth()
  • wmemchr()
  • wmemcmp()
  • wmemcpy()
  • wmemmove()
  • wmemset()
  • wprintf()
  • wscanf()

5.68. <wctype.h>

The following methods and variables in <wctype.h> are supported:

  • iswalnum()
  • iswalpha()
  • iswblank()
  • iswcntrl()
  • iswctype()
  • iswdigit()
  • iswgraph()
  • iswlower()
  • iswprint()
  • iswpunct()
  • iswspace()
  • iswupper()
  • iswxdigit()
  • towctrans()
  • towlower()
  • towupper()
  • wctrans()
  • wctype()

5.69. <wordexp.h>

The following methods and variables in <wordexp.h> are not supported:

  • wordexp()
  • wordfree()

6. POSIX PSE51 - Minimal

This chapter has a subsection per header file to detail the methods provided by RTEMS that are in that header file.

6.1. Summary

The follow table summarizes alignment with the POSIX PSE51 - Minimal standard:

Supported 270
ENOSYS 2
Not supported 12

6.2. <ctype.h>

The following methods and variables in <ctype.h> are supported:

  • isalnum()
  • isalpha()
  • isblank()
  • iscntrl()
  • isdigit()
  • isgraph()
  • islower()
  • isprint()
  • ispunct()
  • isspace()
  • isupper()
  • isxdigit()
  • tolower()
  • toupper()

6.3. <errno.h>

The following methods and variables in <errno.h> are supported:

  • errno

6.4. <fcntl.h>

The following methods and variables in <fcntl.h> are supported:

  • open()

6.5. <fenv.h>

The following methods and variables in <fenv.h> are not supported:

  • feclearexcept()
  • fegetenv()
  • fegetexceptflag()
  • fegetround()
  • feholdexcept()
  • feraiseexcept()
  • fesetenv()
  • fesetexceptflag()
  • fesetround()
  • fetestexcept()
  • feupdateenv()

6.6. <inttypes.h>

The following methods and variables in <inttypes.h> are supported:

  • imaxabs()
  • imaxdiv()
  • strtoimax()
  • strtoumax()

6.7. <locale.h>

The following methods and variables in <locale.h> are supported:

  • localeconv()
  • setlocale()

6.8. <pthread.h>

The following methods and variables in <pthread.h> are supported:

  • pthread_attr_destroy()
  • pthread_attr_getdetachstate()
  • pthread_attr_getguardsize()
  • pthread_attr_getinheritsched()
  • pthread_attr_getschedparam()
  • pthread_attr_getschedpolicy()
  • pthread_attr_getscope()
  • pthread_attr_getstack()
  • pthread_attr_getstackaddr()
  • pthread_attr_getstacksize()
  • pthread_attr_init()
  • pthread_attr_setdetachstate()
  • pthread_attr_setguardsize()
  • pthread_attr_setinheritsched()
  • pthread_attr_setschedparam()
  • pthread_attr_setschedpolicy()
  • pthread_attr_setscope()
  • pthread_attr_setstack()
  • pthread_attr_setstackaddr()
  • pthread_attr_setstacksize()
  • pthread_cancel()
  • pthread_cleanup_pop()
  • pthread_cleanup_push()
  • pthread_cond_broadcast()
  • pthread_cond_destroy()
  • pthread_cond_init()
  • pthread_cond_signal()
  • pthread_cond_timedwait()
  • pthread_cond_wait()
  • pthread_condattr_destroy()
  • pthread_condattr_getclock()
  • pthread_condattr_init()
  • pthread_condattr_setclock()
  • pthread_create()
  • pthread_detach()
  • pthread_equal()
  • pthread_exit()
  • pthread_getconcurrency()
  • pthread_getschedparam()
  • pthread_getspecific()
  • pthread_join()
  • pthread_key_create()
  • pthread_key_delete()
  • pthread_mutex_destroy()
  • pthread_mutex_getprioceiling()
  • pthread_mutex_init()
  • pthread_mutex_lock()
  • pthread_mutex_setprioceiling()
  • pthread_mutex_trylock()
  • pthread_mutex_unlock()
  • pthread_mutexattr_destroy()
  • pthread_mutexattr_getprioceiling()
  • pthread_mutexattr_getprotocol()
  • pthread_mutexattr_gettype()
  • pthread_mutexattr_init()
  • pthread_mutexattr_setprioceiling()
  • pthread_mutexattr_setprotocol()
  • pthread_mutexattr_settype()
  • pthread_once()
  • pthread_self()
  • pthread_setcancelstate()
  • pthread_setcanceltype()
  • pthread_setconcurrency()
  • pthread_setschedparam()
  • pthread_setschedprio()
  • pthread_setspecific()
  • pthread_testcancel()

The following methods in <pthread.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • pthread_atfork()
  • pthread_getcpuclockid()

6.9. <sched.h>

The following methods and variables in <sched.h> are supported:

  • sched_get_priority_max()
  • sched_get_priority_min()
  • sched_rr_get_interval()

6.10. <semaphore.h>

The following methods and variables in <semaphore.h> are supported:

  • sem_close()
  • sem_destroy()
  • sem_getvalue()
  • sem_init()
  • sem_open()
  • sem_post()
  • sem_timedwait()
  • sem_trywait()
  • sem_unlink()
  • sem_wait()

6.11. <setjmp.h>

The following methods and variables in <setjmp.h> are supported:

  • longjmp()
  • setjmp()

6.12. <signal.h>

The following methods and variables in <signal.h> are supported:

  • kill()
  • pthread_kill()
  • pthread_sigmask()
  • raise()
  • sigaction()
  • sigaddset()
  • sigdelset()
  • sigemptyset()
  • sigfillset()
  • sigismember()
  • signal()
  • sigpending()
  • sigprocmask()
  • sigqueue()
  • sigsuspend()
  • sigtimedwait()
  • sigwait()
  • sigwaitinfo()

6.13. <stdarg.h>

The following methods and variables in <stdarg.h> are supported:

  • va_arg()
  • va_copy()
  • va_end()
  • va_start()

6.14. <stdio.h>

The following methods and variables in <stdio.h> are supported:

  • clearerr()
  • fclose()
  • fdopen()
  • feof()
  • ferror()
  • fflush()
  • fgetc()
  • fgets()
  • fileno()
  • flockfile()
  • fopen()
  • fprintf()
  • fputc()
  • fputs()
  • fread()
  • freopen()
  • fscanf()
  • ftrylockfile()
  • funlockfile()
  • fwrite()
  • getc()
  • getc_unlocked()
  • getchar()
  • getchar_unlocked()
  • gets()
  • perror()
  • printf()
  • putc()
  • putc_unlocked()
  • putchar()
  • putchar_unlocked()
  • puts()
  • scanf()
  • setbuf()
  • setvbuf()
  • snprintf()
  • sprintf()
  • sscanf()
  • stderr
  • stdin
  • stdout
  • ungetc()
  • vfprintf()
  • vfscanf()
  • vprintf()
  • vscanf()
  • vsnprintf()
  • vsprintf()
  • vsscanf()

6.15. <stdlib.h>

The following methods and variables in <stdlib.h> are supported:

  • abort()
  • abs()
  • atof()
  • atoi()
  • atol()
  • atoll()
  • bsearch()
  • calloc()
  • div()
  • free()
  • getenv()
  • labs()
  • ldiv()
  • llabs()
  • lldiv()
  • malloc()
  • qsort()
  • rand()
  • rand_r()
  • realloc()
  • setenv()
  • srand()
  • strtod()
  • strtof()
  • strtol()
  • strtold()
  • strtoll()
  • strtoul()
  • strtoull()
  • unsetenv()

6.16. <string.h>

The following methods and variables in <string.h> are supported:

  • memchr()
  • memcmp()
  • memcpy()
  • memmove()
  • memset()
  • strcat()
  • strchr()
  • strcmp()
  • strcoll()
  • strcpy()
  • strcspn()
  • strerror()
  • strerror_r()
  • strlen()
  • strncat()
  • strncmp()
  • strncpy()
  • strpbrk()
  • strrchr()
  • strspn()
  • strstr()
  • strtok()
  • strtok_r()
  • strxfrm()

6.17. <sys/mman.h>

The following methods and variables in <sys/mman.h> are supported:

  • mlock()
  • mlockall()
  • mmap()
  • munlock()
  • munmap()
  • shm_open()
  • shm_unlink()

6.18. <sys/utsname.h>

The following methods and variables in <sys/utsname.h> are supported:

  • uname()

6.19. <time.h>

The following methods and variables in <time.h> are supported:

  • asctime()
  • asctime_r()
  • clock_getres()
  • clock_gettime()
  • clock_nanosleep()
  • clock_settime()
  • ctime()
  • ctime_r()
  • difftime()
  • gmtime()
  • gmtime_r()
  • localtime()
  • localtime_r()
  • mktime()
  • nanosleep()
  • strftime()
  • time()
  • timer_create()
  • timer_delete()
  • timer_getoverrun()
  • timer_gettime()
  • timer_settime()
  • tzname
  • tzset()

6.20. <unistd.h>

The following methods and variables in <unistd.h> are supported:

  • alarm()
  • close()
  • environ
  • fdatasync()
  • fsync()
  • pause()
  • read()
  • sysconf()
  • write()

The following methods and variables in <unistd.h> are not supported:

  • confstr()

7. POSIX PSE52 - Real-Time Controller

This chapter has a subsection per header file to detail the methods provided by RTEMS that are in that header file.

7.1. Summary

The follow table summarizes alignment with the POSIX PSE52 - Real-Time Controller standard:

Supported 553
ENOSYS 2
Not supported 73

7.2. <complex.h>

The following methods and variables in <complex.h> are supported:

  • cabs()
  • cabsf()
  • cabsl()
  • cacos()
  • cacosf()
  • cacosh()
  • cacoshf()
  • cacoshl()
  • cacosl()
  • carg()
  • cargf()
  • cargl()
  • casin()
  • casinf()
  • casinh()
  • casinhf()
  • casinhl()
  • casinl()
  • catan()
  • catanf()
  • catanh()
  • catanhf()
  • catanhl()
  • catanl()
  • ccos()
  • ccosf()
  • ccosh()
  • ccoshf()
  • ccoshl()
  • ccosl()
  • cexp()
  • cexpf()
  • cexpl()
  • cimag()
  • cimagf()
  • cimagl()
  • clog()
  • clogf()
  • clogl()
  • conj()
  • conjf()
  • conjl()
  • cpow()
  • cpowf()
  • cpowl()
  • cproj()
  • cprojf()
  • cprojl()
  • creal()
  • crealf()
  • creall()
  • csin()
  • csinf()
  • csinh()
  • csinhf()
  • csinhl()
  • csinl()
  • csqrt()
  • csqrtf()
  • csqrtl()
  • ctan()
  • ctanf()
  • ctanh()
  • ctanhf()
  • ctanhl()
  • ctanl()

7.3. <ctype.h>

The following methods and variables in <ctype.h> are supported:

  • isalnum()
  • isalpha()
  • isblank()
  • iscntrl()
  • isdigit()
  • isgraph()
  • islower()
  • isprint()
  • ispunct()
  • isspace()
  • isupper()
  • isxdigit()
  • tolower()
  • toupper()

7.4. <dirent.h>

The following methods and variables in <dirent.h> are supported:

  • closedir()
  • opendir()
  • readdir()
  • readdir_r()
  • rewinddir()

7.5. <errno.h>

The following methods and variables in <errno.h> are supported:

  • errno

7.6. <fcntl.h>

The following methods and variables in <fcntl.h> are supported:

  • creat()
  • fcntl()
  • open()

7.7. <fenv.h>

The following methods and variables in <fenv.h> are not supported:

  • feclearexcept()
  • fegetenv()
  • fegetexceptflag()
  • fegetround()
  • feholdexcept()
  • feraiseexcept()
  • fesetenv()
  • fesetexceptflag()
  • fesetround()
  • fetestexcept()
  • feupdateenv()

7.8. <inttypes.h>

The following methods and variables in <inttypes.h> are supported:

  • imaxabs()
  • imaxdiv()
  • strtoimax()
  • strtoumax()

7.9. <locale.h>

The following methods and variables in <locale.h> are supported:

  • localeconv()
  • setlocale()

7.10. <math.h>

The following methods and variables in <math.h> are supported:

  • acos()
  • acosf()
  • acosh()
  • acoshf()
  • acoshl()
  • acosl()
  • asin()
  • asinf()
  • asinh()
  • asinhf()
  • asinhl()
  • asinl()
  • atan()
  • atan2()
  • atan2f()
  • atan2l()
  • atanf()
  • atanh()
  • atanhf()
  • atanhl()
  • atanl()
  • cbrt()
  • cbrtf()
  • cbrtl()
  • ceil()
  • ceilf()
  • ceill()
  • copysign()
  • copysignf()
  • copysignl()
  • cos()
  • cosf()
  • cosh()
  • coshf()
  • coshl()
  • cosl()
  • erf()
  • erfc()
  • erfcf()
  • erfcl()
  • erff()
  • erfl()
  • exp()
  • exp2()
  • exp2f()
  • exp2l()
  • expf()
  • expl()
  • expm1()
  • expm1f()
  • expm1l()
  • fabs()
  • fabsf()
  • fabsl()
  • fdim()
  • fdimf()
  • fdiml()
  • floor()
  • floorf()
  • floorl()
  • fma()
  • fmaf()
  • fmal()
  • fmax()
  • fmaxf()
  • fmaxl()
  • fmin()
  • fminf()
  • fminl()
  • fmod()
  • fmodf()
  • fmodl()
  • frexp()
  • frexpf()
  • frexpl()
  • hypot()
  • hypotf()
  • hypotl()
  • ilogb()
  • ilogbf()
  • ilogbl()
  • isinf()
  • isnan()
  • ldexp()
  • ldexpf()
  • ldexpl()
  • lgamma()
  • lgammaf()
  • lgammal()
  • llrint()
  • llrintf()
  • llrintl()
  • llround()
  • llroundf()
  • llroundl()
  • log()
  • log10()
  • log10f()
  • log10l()
  • log1p()
  • log1pf()
  • log1pl()
  • log2()
  • log2f()
  • log2l()
  • logb()
  • logbf()
  • logbl()
  • logf()
  • logl()
  • lrint()
  • lrintf()
  • lrintl()
  • lround()
  • lroundf()
  • lroundl()
  • modf()
  • modff()
  • modfl()
  • nan()
  • nanf()
  • nanl()
  • nearbyint()
  • nearbyintf()
  • nearbyintl()
  • nextafter()
  • nextafterf()
  • nextafterl()
  • nexttoward()
  • nexttowardl()
  • pow()
  • powf()
  • powl()
  • remainder()
  • remainderf()
  • remainderl()
  • remquo()
  • remquof()
  • remquol()
  • rint()
  • rintf()
  • rintl()
  • round()
  • roundf()
  • roundl()
  • scalbln()
  • scalblnf()
  • scalblnl()
  • scalbn()
  • scalbnf()
  • scalbnl()
  • sin()
  • sinf()
  • sinh()
  • sinhf()
  • sinhl()
  • sinl()
  • sqrt()
  • sqrtf()
  • sqrtl()
  • tan()
  • tanf()
  • tanh()
  • tanhf()
  • tanhl()
  • tanl()
  • tgamma()
  • tgammaf()
  • tgammal()
  • trunc()
  • truncf()
  • truncl()

The following methods and variables in <math.h> are not supported:

  • fpclassify()
  • isfinite()
  • isgreater()
  • isgreaterequal()
  • isless()
  • islessequal()
  • islessgreater()
  • isnormal()
  • isunordered()
  • nexttowardf()
  • signbit()

7.11. <mqueue.h>

The following methods and variables in <mqueue.h> are supported:

  • mq_close()
  • mq_getattr()
  • mq_notify()
  • mq_open()
  • mq_receive()
  • mq_send()
  • mq_setattr()
  • mq_timedreceive()
  • mq_timedsend()
  • mq_unlink()

7.12. <pthread.h>

The following methods and variables in <pthread.h> are supported:

  • pthread_attr_destroy()
  • pthread_attr_getdetachstate()
  • pthread_attr_getguardsize()
  • pthread_attr_getinheritsched()
  • pthread_attr_getschedparam()
  • pthread_attr_getschedpolicy()
  • pthread_attr_getscope()
  • pthread_attr_getstack()
  • pthread_attr_getstackaddr()
  • pthread_attr_getstacksize()
  • pthread_attr_init()
  • pthread_attr_setdetachstate()
  • pthread_attr_setguardsize()
  • pthread_attr_setinheritsched()
  • pthread_attr_setschedparam()
  • pthread_attr_setschedpolicy()
  • pthread_attr_setscope()
  • pthread_attr_setstack()
  • pthread_attr_setstackaddr()
  • pthread_attr_setstacksize()
  • pthread_cancel()
  • pthread_cleanup_pop()
  • pthread_cleanup_push()
  • pthread_cond_broadcast()
  • pthread_cond_destroy()
  • pthread_cond_init()
  • pthread_cond_signal()
  • pthread_cond_timedwait()
  • pthread_cond_wait()
  • pthread_condattr_destroy()
  • pthread_condattr_getclock()
  • pthread_condattr_init()
  • pthread_condattr_setclock()
  • pthread_create()
  • pthread_detach()
  • pthread_equal()
  • pthread_exit()
  • pthread_getconcurrency()
  • pthread_getschedparam()
  • pthread_getspecific()
  • pthread_join()
  • pthread_key_create()
  • pthread_key_delete()
  • pthread_mutex_destroy()
  • pthread_mutex_getprioceiling()
  • pthread_mutex_init()
  • pthread_mutex_lock()
  • pthread_mutex_setprioceiling()
  • pthread_mutex_trylock()
  • pthread_mutex_unlock()
  • pthread_mutexattr_destroy()
  • pthread_mutexattr_getprioceiling()
  • pthread_mutexattr_getprotocol()
  • pthread_mutexattr_gettype()
  • pthread_mutexattr_init()
  • pthread_mutexattr_setprioceiling()
  • pthread_mutexattr_setprotocol()
  • pthread_mutexattr_settype()
  • pthread_once()
  • pthread_self()
  • pthread_setcancelstate()
  • pthread_setcanceltype()
  • pthread_setconcurrency()
  • pthread_setschedparam()
  • pthread_setschedprio()
  • pthread_setspecific()
  • pthread_testcancel()

The following methods in <pthread.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • pthread_atfork()
  • pthread_getcpuclockid()

7.13. <sched.h>

The following methods and variables in <sched.h> are supported:

  • sched_get_priority_max()
  • sched_get_priority_min()
  • sched_rr_get_interval()

7.14. <semaphore.h>

The following methods and variables in <semaphore.h> are supported:

  • sem_close()
  • sem_destroy()
  • sem_getvalue()
  • sem_init()
  • sem_open()
  • sem_post()
  • sem_timedwait()
  • sem_trywait()
  • sem_unlink()
  • sem_wait()

7.15. <setjmp.h>

The following methods and variables in <setjmp.h> are supported:

  • longjmp()
  • setjmp()

7.16. <signal.h>

The following methods and variables in <signal.h> are supported:

  • kill()
  • pthread_kill()
  • pthread_sigmask()
  • raise()
  • sigaction()
  • sigaddset()
  • sigdelset()
  • sigemptyset()
  • sigfillset()
  • sigismember()
  • signal()
  • sigpending()
  • sigprocmask()
  • sigqueue()
  • sigsuspend()
  • sigtimedwait()
  • sigwait()
  • sigwaitinfo()

7.17. <stdarg.h>

The following methods and variables in <stdarg.h> are supported:

  • va_arg()
  • va_copy()
  • va_end()
  • va_start()

7.18. <stdio.h>

The following methods and variables in <stdio.h> are supported:

  • clearerr()
  • fclose()
  • fdopen()
  • feof()
  • ferror()
  • fflush()
  • fgetc()
  • fgetpos()
  • fgets()
  • fileno()
  • flockfile()
  • fopen()
  • fprintf()
  • fputc()
  • fputs()
  • fread()
  • freopen()
  • fscanf()
  • fseek()
  • fseeko()
  • fsetpos()
  • ftell()
  • ftello()
  • ftrylockfile()
  • funlockfile()
  • fwrite()
  • getc()
  • getc_unlocked()
  • getchar()
  • getchar_unlocked()
  • gets()
  • perror()
  • printf()
  • putc()
  • putc_unlocked()
  • putchar()
  • putchar_unlocked()
  • puts()
  • remove()
  • rename()
  • rewind()
  • scanf()
  • setbuf()
  • setvbuf()
  • snprintf()
  • sprintf()
  • sscanf()
  • stderr
  • stdin
  • stdout
  • tmpfile()
  • tmpnam()
  • ungetc()
  • vfprintf()
  • vfscanf()
  • vprintf()
  • vscanf()
  • vsnprintf()
  • vsprintf()
  • vsscanf()

7.19. <stdlib.h>

The following methods and variables in <stdlib.h> are supported:

  • abort()
  • abs()
  • atof()
  • atoi()
  • atol()
  • atoll()
  • bsearch()
  • calloc()
  • div()
  • free()
  • getenv()
  • labs()
  • ldiv()
  • llabs()
  • lldiv()
  • malloc()
  • qsort()
  • rand()
  • rand_r()
  • realloc()
  • setenv()
  • srand()
  • strtod()
  • strtof()
  • strtol()
  • strtold()
  • strtoll()
  • strtoul()
  • strtoull()
  • unsetenv()

7.20. <string.h>

The following methods and variables in <string.h> are supported:

  • memchr()
  • memcmp()
  • memcpy()
  • memmove()
  • memset()
  • strcat()
  • strchr()
  • strcmp()
  • strcoll()
  • strcpy()
  • strcspn()
  • strerror()
  • strerror_r()
  • strlen()
  • strncat()
  • strncmp()
  • strncpy()
  • strpbrk()
  • strrchr()
  • strspn()
  • strstr()
  • strtok()
  • strtok_r()
  • strxfrm()

7.21. <sys/mman.h>

The following methods and variables in <sys/mman.h> are supported:

  • mlock()
  • mlockall()
  • mmap()
  • msync()
  • munlock()
  • munmap()
  • shm_open()
  • shm_unlink()

7.22. <sys/stat.h>

The following methods and variables in <sys/stat.h> are supported:

  • fstat()
  • mkdir()
  • stat()

7.23. <sys/utsname.h>

The following methods and variables in <sys/utsname.h> are supported:

  • uname()

7.24. <time.h>

The following methods and variables in <time.h> are supported:

  • asctime()
  • asctime_r()
  • clock_getres()
  • clock_gettime()
  • clock_nanosleep()
  • clock_settime()
  • ctime()
  • ctime_r()
  • difftime()
  • gmtime()
  • gmtime_r()
  • localtime()
  • localtime_r()
  • mktime()
  • nanosleep()
  • strftime()
  • time()
  • timer_create()
  • timer_delete()
  • timer_getoverrun()
  • timer_gettime()
  • timer_settime()
  • tzname
  • tzset()

7.25. <trace.h>

The following methods and variables in <trace.h> are not supported:

  • posix_trace_attr_destroy()
  • posix_trace_attr_getclockres()
  • posix_trace_attr_getcreatetime()
  • posix_trace_attr_getgenversion()
  • posix_trace_attr_getinherited()
  • posix_trace_attr_getlogfullpolicy()
  • posix_trace_attr_getlogsize()
  • posix_trace_attr_getmaxdatasize()
  • posix_trace_attr_getmaxsystemeventsize()
  • posix_trace_attr_getmaxusereventsize()
  • posix_trace_attr_getname()
  • posix_trace_attr_getstreamfullpolicy()
  • posix_trace_attr_getstreamsize()
  • posix_trace_attr_init()
  • posix_trace_attr_setinherited()
  • posix_trace_attr_setlogfullpolicy()
  • posix_trace_attr_setlogsize()
  • posix_trace_attr_setmaxdatasize()
  • posix_trace_attr_setname()
  • posix_trace_attr_setstreamfullpolicy()
  • posix_trace_attr_setstreamsize()
  • posix_trace_clear()
  • posix_trace_close()
  • posix_trace_create()
  • posix_trace_create_withlog()
  • posix_trace_event()
  • posix_trace_eventid_equal()
  • posix_trace_eventid_get_name()
  • posix_trace_eventid_open()
  • posix_trace_eventset_add()
  • posix_trace_eventset_del()
  • posix_trace_eventset_empty()
  • posix_trace_eventset_fill()
  • posix_trace_eventset_ismember()
  • posix_trace_eventtypelist_getnext_id()
  • posix_trace_eventtypelist_rewind()
  • posix_trace_flush()
  • posix_trace_get_attr()
  • posix_trace_get_filter()
  • posix_trace_get_status()
  • posix_trace_getnext_event()
  • posix_trace_open()
  • posix_trace_rewind()
  • posix_trace_set_filter()
  • posix_trace_shutdown()
  • posix_trace_start()
  • posix_trace_stop()
  • posix_trace_timedgetnext_event()
  • posix_trace_trid_eventid_open()
  • posix_trace_trygetnext_event()

7.26. <unistd.h>

The following methods and variables in <unistd.h> are supported:

  • access()
  • alarm()
  • chdir()
  • close()
  • dup()
  • dup2()
  • environ
  • fdatasync()
  • fpathconf()
  • fsync()
  • ftruncate()
  • getcwd()
  • link()
  • lseek()
  • pathconf()
  • pause()
  • read()
  • rmdir()
  • sysconf()
  • unlink()
  • write()

The following methods and variables in <unistd.h> are not supported:

  • confstr()

7.27. <utime.h>

The following methods and variables in <utime.h> are supported:

  • utime()

8. POSIX PSE53 - Dedicated

This chapter has a subsection per header file to detail the methods provided by RTEMS that are in that header file.

8.1. Summary

The follow table summarizes alignment with the POSIX PSE53 - Dedicated standard:

Supported 639
ENOSYS 16
Not supported 96

8.2. <aio.h>

The following methods and variables in <aio.h> are supported:

  • aio_cancel()
  • aio_error()
  • aio_fsync()
  • aio_read()
  • aio_return()
  • aio_write()

The following methods in <aio.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • aio_suspend()
  • lio_listio()

8.3. <arpa/inet.h>

The following methods and variables in <arpa/inet.h> are supported:

  • htonl()
  • htons()
  • inet_addr()
  • inet_ntoa()
  • inet_ntop()
  • inet_pton()
  • ntohl()
  • ntohs()

8.4. <assert.h>

The following methods and variables in <assert.h> are supported:

  • assert()

8.5. <complex.h>

The following methods and variables in <complex.h> are supported:

  • cabs()
  • cabsf()
  • cabsl()
  • cacos()
  • cacosf()
  • cacosh()
  • cacoshf()
  • cacoshl()
  • cacosl()
  • carg()
  • cargf()
  • cargl()
  • casin()
  • casinf()
  • casinh()
  • casinhf()
  • casinhl()
  • casinl()
  • catan()
  • catanf()
  • catanh()
  • catanhf()
  • catanhl()
  • catanl()
  • ccos()
  • ccosf()
  • ccosh()
  • ccoshf()
  • ccoshl()
  • ccosl()
  • cexp()
  • cexpf()
  • cexpl()
  • cimag()
  • cimagf()
  • cimagl()
  • clog()
  • clogf()
  • clogl()
  • conj()
  • conjf()
  • conjl()
  • cpow()
  • cpowf()
  • cpowl()
  • cproj()
  • cprojf()
  • cprojl()
  • creal()
  • crealf()
  • creall()
  • csin()
  • csinf()
  • csinh()
  • csinhf()
  • csinhl()
  • csinl()
  • csqrt()
  • csqrtf()
  • csqrtl()
  • ctan()
  • ctanf()
  • ctanh()
  • ctanhf()
  • ctanhl()
  • ctanl()

8.6. <ctype.h>

The following methods and variables in <ctype.h> are supported:

  • isalnum()
  • isalpha()
  • isblank()
  • iscntrl()
  • isdigit()
  • isgraph()
  • islower()
  • isprint()
  • ispunct()
  • isspace()
  • isupper()
  • isxdigit()
  • tolower()
  • toupper()

8.7. <dirent.h>

The following methods and variables in <dirent.h> are supported:

  • closedir()
  • opendir()
  • readdir()
  • readdir_r()
  • rewinddir()

8.8. <errno.h>

The following methods and variables in <errno.h> are supported:

  • errno

8.9. <fcntl.h>

The following methods and variables in <fcntl.h> are supported:

  • creat()
  • fcntl()
  • open()

8.10. <fenv.h>

The following methods and variables in <fenv.h> are not supported:

  • feclearexcept()
  • fegetenv()
  • fegetexceptflag()
  • fegetround()
  • feholdexcept()
  • feraiseexcept()
  • fesetenv()
  • fesetexceptflag()
  • fesetround()
  • fetestexcept()
  • feupdateenv()

8.11. <inttypes.h>

The following methods and variables in <inttypes.h> are supported:

  • imaxabs()
  • imaxdiv()
  • strtoimax()
  • strtoumax()

8.12. <locale.h>

The following methods and variables in <locale.h> are supported:

  • localeconv()
  • setlocale()

8.13. <math.h>

The following methods and variables in <math.h> are supported:

  • acos()
  • acosf()
  • acosh()
  • acoshf()
  • acoshl()
  • acosl()
  • asin()
  • asinf()
  • asinh()
  • asinhf()
  • asinhl()
  • asinl()
  • atan()
  • atan2()
  • atan2f()
  • atan2l()
  • atanf()
  • atanh()
  • atanhf()
  • atanhl()
  • atanl()
  • cbrt()
  • cbrtf()
  • cbrtl()
  • ceil()
  • ceilf()
  • ceill()
  • copysign()
  • copysignf()
  • copysignl()
  • cos()
  • cosf()
  • cosh()
  • coshf()
  • coshl()
  • cosl()
  • erf()
  • erfc()
  • erfcf()
  • erfcl()
  • erff()
  • erfl()
  • exp()
  • exp2()
  • exp2f()
  • exp2l()
  • expf()
  • expl()
  • expm1()
  • expm1f()
  • expm1l()
  • fabs()
  • fabsf()
  • fabsl()
  • fdim()
  • fdimf()
  • fdiml()
  • floor()
  • floorf()
  • floorl()
  • fma()
  • fmaf()
  • fmal()
  • fmax()
  • fmaxf()
  • fmaxl()
  • fmin()
  • fminf()
  • fminl()
  • fmod()
  • fmodf()
  • fmodl()
  • frexp()
  • frexpf()
  • frexpl()
  • hypot()
  • hypotf()
  • hypotl()
  • ilogb()
  • ilogbf()
  • ilogbl()
  • isinf()
  • isnan()
  • ldexp()
  • ldexpf()
  • ldexpl()
  • lgamma()
  • lgammaf()
  • lgammal()
  • llrint()
  • llrintf()
  • llrintl()
  • llround()
  • llroundf()
  • llroundl()
  • log()
  • log10()
  • log10f()
  • log10l()
  • log1p()
  • log1pf()
  • log1pl()
  • log2()
  • log2f()
  • log2l()
  • logb()
  • logbf()
  • logbl()
  • logf()
  • logl()
  • lrint()
  • lrintf()
  • lrintl()
  • lround()
  • lroundf()
  • lroundl()
  • modf()
  • modff()
  • modfl()
  • nan()
  • nanf()
  • nanl()
  • nearbyint()
  • nearbyintf()
  • nearbyintl()
  • nextafter()
  • nextafterf()
  • nextafterl()
  • nexttoward()
  • nexttowardl()
  • pow()
  • powf()
  • powl()
  • remainder()
  • remainderf()
  • remainderl()
  • remquo()
  • remquof()
  • remquol()
  • rint()
  • rintf()
  • rintl()
  • round()
  • roundf()
  • roundl()
  • scalbln()
  • scalblnf()
  • scalblnl()
  • scalbn()
  • scalbnf()
  • scalbnl()
  • sin()
  • sinf()
  • sinh()
  • sinhf()
  • sinhl()
  • sinl()
  • sqrt()
  • sqrtf()
  • sqrtl()
  • tan()
  • tanf()
  • tanh()
  • tanhf()
  • tanhl()
  • tanl()
  • tgamma()
  • tgammaf()
  • tgammal()
  • trunc()
  • truncf()
  • truncl()

The following methods and variables in <math.h> are not supported:

  • fpclassify()
  • isfinite()
  • isgreater()
  • isgreaterequal()
  • isless()
  • islessequal()
  • islessgreater()
  • isnormal()
  • isunordered()
  • nexttowardf()
  • signbit()

8.14. <mqueue.h>

The following methods and variables in <mqueue.h> are supported:

  • mq_close()
  • mq_getattr()
  • mq_notify()
  • mq_open()
  • mq_receive()
  • mq_send()
  • mq_setattr()
  • mq_timedreceive()
  • mq_timedsend()
  • mq_unlink()

8.15. <net/if.h>

The following methods and variables in <net/if.h> are supported:

  • if_freenameindex()
  • if_indextoname()
  • if_nameindex()
  • if_nametoindex()

8.16. <netdb.h>

The following methods and variables in <netdb.h> are supported:

  • endhostent()
  • endnetent()
  • endprotoent()
  • endservent()
  • freeaddrinfo()
  • gai_strerror()
  • getaddrinfo()
  • gethostent()
  • getnameinfo()
  • getnetbyaddr()
  • getnetbyname()
  • getnetent()
  • getprotobyname()
  • getprotobynumber()
  • getprotoent()
  • getservbyname()
  • getservbyport()
  • getservent()
  • sethostent()
  • setnetent()
  • setprotoent()
  • setservent()

8.17. <pthread.h>

The following methods and variables in <pthread.h> are supported:

  • pthread_attr_destroy()
  • pthread_attr_getdetachstate()
  • pthread_attr_getguardsize()
  • pthread_attr_getinheritsched()
  • pthread_attr_getschedparam()
  • pthread_attr_getschedpolicy()
  • pthread_attr_getscope()
  • pthread_attr_getstack()
  • pthread_attr_getstackaddr()
  • pthread_attr_getstacksize()
  • pthread_attr_init()
  • pthread_attr_setdetachstate()
  • pthread_attr_setguardsize()
  • pthread_attr_setinheritsched()
  • pthread_attr_setschedparam()
  • pthread_attr_setschedpolicy()
  • pthread_attr_setscope()
  • pthread_attr_setstack()
  • pthread_attr_setstackaddr()
  • pthread_attr_setstacksize()
  • pthread_cancel()
  • pthread_cleanup_pop()
  • pthread_cleanup_push()
  • pthread_cond_broadcast()
  • pthread_cond_destroy()
  • pthread_cond_init()
  • pthread_cond_signal()
  • pthread_cond_timedwait()
  • pthread_cond_wait()
  • pthread_condattr_destroy()
  • pthread_condattr_getclock()
  • pthread_condattr_getpshared()
  • pthread_condattr_init()
  • pthread_condattr_setclock()
  • pthread_condattr_setpshared()
  • pthread_create()
  • pthread_detach()
  • pthread_equal()
  • pthread_exit()
  • pthread_getconcurrency()
  • pthread_getschedparam()
  • pthread_getspecific()
  • pthread_join()
  • pthread_key_create()
  • pthread_key_delete()
  • pthread_mutex_destroy()
  • pthread_mutex_getprioceiling()
  • pthread_mutex_init()
  • pthread_mutex_lock()
  • pthread_mutex_setprioceiling()
  • pthread_mutex_trylock()
  • pthread_mutex_unlock()
  • pthread_mutexattr_destroy()
  • pthread_mutexattr_getprioceiling()
  • pthread_mutexattr_getprotocol()
  • pthread_mutexattr_getpshared()
  • pthread_mutexattr_gettype()
  • pthread_mutexattr_init()
  • pthread_mutexattr_setprioceiling()
  • pthread_mutexattr_setprotocol()
  • pthread_mutexattr_setpshared()
  • pthread_mutexattr_settype()
  • pthread_once()
  • pthread_self()
  • pthread_setcancelstate()
  • pthread_setcanceltype()
  • pthread_setconcurrency()
  • pthread_setschedparam()
  • pthread_setschedprio()
  • pthread_setspecific()
  • pthread_testcancel()

The following methods in <pthread.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • pthread_atfork()
  • pthread_getcpuclockid()

8.18. <sched.h>

The following methods and variables in <sched.h> are supported:

  • sched_get_priority_max()
  • sched_get_priority_min()
  • sched_rr_get_interval()
  • sched_yield()

The following methods in <sched.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • sched_getparam()
  • sched_getscheduler()
  • sched_setparam()
  • sched_setscheduler()

8.19. <semaphore.h>

The following methods and variables in <semaphore.h> are supported:

  • sem_close()
  • sem_destroy()
  • sem_getvalue()
  • sem_init()
  • sem_open()
  • sem_post()
  • sem_timedwait()
  • sem_trywait()
  • sem_unlink()
  • sem_wait()

8.20. <setjmp.h>

The following methods and variables in <setjmp.h> are supported:

  • longjmp()
  • setjmp()
  • siglongjmp()
  • sigsetjmp()

8.21. <signal.h>

The following methods and variables in <signal.h> are supported:

  • kill()
  • pthread_kill()
  • pthread_sigmask()
  • raise()
  • sigaction()
  • sigaddset()
  • sigdelset()
  • sigemptyset()
  • sigfillset()
  • sigismember()
  • signal()
  • sigpending()
  • sigprocmask()
  • sigqueue()
  • sigsuspend()
  • sigtimedwait()
  • sigwait()
  • sigwaitinfo()

8.22. <spawn.h>

The following methods and variables in <spawn.h> are not supported:

  • posix_spawn()
  • posix_spawn_file_actions_addclose()
  • posix_spawn_file_actions_adddup2()
  • posix_spawn_file_actions_addopen()
  • posix_spawn_file_actions_destroy()
  • posix_spawn_file_actions_init()
  • posix_spawnattr_destroy()
  • posix_spawnattr_getflags()
  • posix_spawnattr_getpgroup()
  • posix_spawnattr_getschedparam()
  • posix_spawnattr_getschedpolicy()
  • posix_spawnattr_getsigdefault()
  • posix_spawnattr_getsigmask()
  • posix_spawnattr_init()
  • posix_spawnattr_setflags()
  • posix_spawnattr_setpgroup()
  • posix_spawnattr_setschedparam()
  • posix_spawnattr_setschedpolicy()
  • posix_spawnattr_setsigdefault()
  • posix_spawnattr_setsigmask()
  • posix_spawnp()

8.23. <stdarg.h>

The following methods and variables in <stdarg.h> are supported:

  • va_arg()
  • va_copy()
  • va_end()
  • va_start()

8.24. <stdio.h>

The following methods and variables in <stdio.h> are supported:

  • clearerr()
  • fclose()
  • fdopen()
  • feof()
  • ferror()
  • fflush()
  • fgetc()
  • fgetpos()
  • fgets()
  • fileno()
  • flockfile()
  • fopen()
  • fprintf()
  • fputc()
  • fputs()
  • fread()
  • freopen()
  • fscanf()
  • fseek()
  • fseeko()
  • fsetpos()
  • ftell()
  • ftello()
  • ftrylockfile()
  • funlockfile()
  • fwrite()
  • getc()
  • getc_unlocked()
  • getchar()
  • getchar_unlocked()
  • gets()
  • perror()
  • printf()
  • putc()
  • putc_unlocked()
  • putchar()
  • putchar_unlocked()
  • puts()
  • remove()
  • rename()
  • rewind()
  • scanf()
  • setbuf()
  • setvbuf()
  • snprintf()
  • sprintf()
  • sscanf()
  • stderr
  • stdin
  • stdout
  • tmpfile()
  • tmpnam()
  • ungetc()
  • vfprintf()
  • vfscanf()
  • vprintf()
  • vscanf()
  • vsnprintf()
  • vsprintf()
  • vsscanf()

8.25. <stdlib.h>

The following methods and variables in <stdlib.h> are supported:

  • _Exit()
  • abort()
  • abs()
  • atexit()
  • atof()
  • atoi()
  • atol()
  • atoll()
  • bsearch()
  • calloc()
  • div()
  • exit()
  • free()
  • getenv()
  • labs()
  • ldiv()
  • llabs()
  • lldiv()
  • malloc()
  • qsort()
  • rand()
  • rand_r()
  • realloc()
  • setenv()
  • srand()
  • strtod()
  • strtof()
  • strtol()
  • strtold()
  • strtoll()
  • strtoul()
  • strtoull()
  • unsetenv()

8.26. <string.h>

The following methods and variables in <string.h> are supported:

  • memchr()
  • memcmp()
  • memcpy()
  • memmove()
  • memset()
  • strcat()
  • strchr()
  • strcmp()
  • strcoll()
  • strcpy()
  • strcspn()
  • strerror()
  • strerror_r()
  • strlen()
  • strncat()
  • strncmp()
  • strncpy()
  • strpbrk()
  • strrchr()
  • strspn()
  • strstr()
  • strtok()
  • strtok_r()
  • strxfrm()

8.27. <sys/mman.h>

The following methods and variables in <sys/mman.h> are supported:

  • mlock()
  • mlockall()
  • mmap()
  • mprotect()
  • msync()
  • munlock()
  • munmap()
  • shm_open()
  • shm_unlink()

8.28. <sys/select.h>

The following methods and variables in <sys/select.h> are supported:

  • FD_CLR()
  • FD_ISSET()
  • FD_SET()
  • FD_ZERO()
  • select()

The following methods and variables in <sys/select.h> are not supported:

  • pselect()

8.29. <sys/socket.h>

The following methods and variables in <sys/socket.h> are supported:

  • accept()
  • bind()
  • connect()
  • getpeername()
  • getsockname()
  • getsockopt()
  • listen()
  • recv()
  • recvfrom()
  • recvmsg()
  • send()
  • sendmsg()
  • sendto()
  • setsockopt()
  • shutdown()
  • socket()
  • socketpair()

The following methods and variables in <sys/socket.h> are not supported:

  • sockatmark()

8.30. <sys/stat.h>

The following methods and variables in <sys/stat.h> are supported:

  • fstat()
  • mkdir()
  • stat()

8.31. <sys/time.h>

The following methods and variables in <sys/time.h> are supported:

  • times()
  • utimes()

8.32. <sys/utsname.h>

The following methods and variables in <sys/utsname.h> are supported:

  • uname()

8.33. <sys/wait.h>

The following methods and variables in <sys/wait.h> are supported:

  • wait()

8.34. <time.h>

The following methods and variables in <time.h> are supported:

  • asctime()
  • asctime_r()
  • clock()
  • clock_getres()
  • clock_gettime()
  • clock_nanosleep()
  • clock_settime()
  • ctime()
  • ctime_r()
  • difftime()
  • gmtime()
  • gmtime_r()
  • localtime()
  • localtime_r()
  • mktime()
  • nanosleep()
  • strftime()
  • time()
  • timer_create()
  • timer_delete()
  • timer_getoverrun()
  • timer_gettime()
  • timer_settime()
  • tzname
  • tzset()

The following methods in <time.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • clock_getcpuclockid()

8.35. <trace.h>

The following methods and variables in <trace.h> are not supported:

  • posix_trace_attr_destroy()
  • posix_trace_attr_getclockres()
  • posix_trace_attr_getcreatetime()
  • posix_trace_attr_getgenversion()
  • posix_trace_attr_getinherited()
  • posix_trace_attr_getlogfullpolicy()
  • posix_trace_attr_getlogsize()
  • posix_trace_attr_getmaxdatasize()
  • posix_trace_attr_getmaxsystemeventsize()
  • posix_trace_attr_getmaxusereventsize()
  • posix_trace_attr_getname()
  • posix_trace_attr_getstreamfullpolicy()
  • posix_trace_attr_getstreamsize()
  • posix_trace_attr_init()
  • posix_trace_attr_setinherited()
  • posix_trace_attr_setlogfullpolicy()
  • posix_trace_attr_setlogsize()
  • posix_trace_attr_setmaxdatasize()
  • posix_trace_attr_setname()
  • posix_trace_attr_setstreamfullpolicy()
  • posix_trace_attr_setstreamsize()
  • posix_trace_clear()
  • posix_trace_close()
  • posix_trace_create()
  • posix_trace_create_withlog()
  • posix_trace_event()
  • posix_trace_eventid_equal()
  • posix_trace_eventid_get_name()
  • posix_trace_eventid_open()
  • posix_trace_eventset_add()
  • posix_trace_eventset_del()
  • posix_trace_eventset_empty()
  • posix_trace_eventset_fill()
  • posix_trace_eventset_ismember()
  • posix_trace_eventtypelist_getnext_id()
  • posix_trace_eventtypelist_rewind()
  • posix_trace_flush()
  • posix_trace_get_attr()
  • posix_trace_get_filter()
  • posix_trace_get_status()
  • posix_trace_getnext_event()
  • posix_trace_open()
  • posix_trace_rewind()
  • posix_trace_set_filter()
  • posix_trace_shutdown()
  • posix_trace_start()
  • posix_trace_stop()
  • posix_trace_timedgetnext_event()
  • posix_trace_trid_eventid_open()
  • posix_trace_trygetnext_event()

8.36. <unistd.h>

The following methods and variables in <unistd.h> are supported:

  • _exit()
  • access()
  • alarm()
  • chdir()
  • close()
  • dup()
  • dup2()
  • environ
  • fdatasync()
  • fpathconf()
  • fsync()
  • ftruncate()
  • getcwd()
  • gethostname()
  • getpgrp()
  • getpid()
  • getppid()
  • link()
  • lseek()
  • pathconf()
  • pause()
  • pipe()
  • read()
  • rmdir()
  • setsid()
  • sleep()
  • sysconf()
  • unlink()
  • write()

The following methods in <unistd.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • execl()
  • execle()
  • execlp()
  • execv()
  • execve()
  • execvp()
  • fork()

The following methods and variables in <unistd.h> are not supported:

  • confstr()

8.37. <utime.h>

The following methods and variables in <utime.h> are supported:

  • utime()

9. POSIX PSE54 - Multipurpose

This chapter has a subsection per header file to detail the methods provided by RTEMS that are in that header file.

9.1. Summary

The follow table summarizes alignment with the POSIX PSE54 - Multipurpose standard:

Supported 783
ENOSYS 17
Not supported 106

9.2. <aio.h>

The following methods and variables in <aio.h> are supported:

  • aio_cancel()
  • aio_error()
  • aio_fsync()
  • aio_read()
  • aio_return()
  • aio_write()

The following methods in <aio.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • aio_suspend()
  • lio_listio()

9.3. <arpa/inet.h>

The following methods and variables in <arpa/inet.h> are supported:

  • htonl()
  • htons()
  • inet_addr()
  • inet_ntoa()
  • inet_ntop()
  • inet_pton()
  • ntohl()
  • ntohs()

9.4. <assert.h>

The following methods and variables in <assert.h> are supported:

  • assert()

9.5. <complex.h>

The following methods and variables in <complex.h> are supported:

  • cabs()
  • cabsf()
  • cabsl()
  • cacos()
  • cacosf()
  • cacosh()
  • cacoshf()
  • cacoshl()
  • cacosl()
  • carg()
  • cargf()
  • cargl()
  • casin()
  • casinf()
  • casinh()
  • casinhf()
  • casinhl()
  • casinl()
  • catan()
  • catanf()
  • catanh()
  • catanhf()
  • catanhl()
  • catanl()
  • ccos()
  • ccosf()
  • ccosh()
  • ccoshf()
  • ccoshl()
  • ccosl()
  • cexp()
  • cexpf()
  • cexpl()
  • cimag()
  • cimagf()
  • cimagl()
  • clog()
  • clogf()
  • clogl()
  • conj()
  • conjf()
  • conjl()
  • cpow()
  • cpowf()
  • cpowl()
  • cproj()
  • cprojf()
  • cprojl()
  • creal()
  • crealf()
  • creall()
  • csin()
  • csinf()
  • csinh()
  • csinhf()
  • csinhl()
  • csinl()
  • csqrt()
  • csqrtf()
  • csqrtl()
  • ctan()
  • ctanf()
  • ctanh()
  • ctanhf()
  • ctanhl()
  • ctanl()

9.6. <ctype.h>

The following methods and variables in <ctype.h> are supported:

  • isalnum()
  • isalpha()
  • isblank()
  • iscntrl()
  • isdigit()
  • isgraph()
  • islower()
  • isprint()
  • ispunct()
  • isspace()
  • isupper()
  • isxdigit()
  • tolower()
  • toupper()

9.7. <dirent.h>

The following methods and variables in <dirent.h> are supported:

  • closedir()
  • opendir()
  • readdir()
  • readdir_r()
  • rewinddir()

9.8. <dlfcn.h>

The following methods and variables in <dlfcn.h> are supported:

  • dlclose()
  • dlerror()
  • dlopen()
  • dlsym()

9.9. <errno.h>

The following methods and variables in <errno.h> are supported:

  • errno

9.10. <fcntl.h>

The following methods and variables in <fcntl.h> are supported:

  • creat()
  • fcntl()
  • open()

The following methods and variables in <fcntl.h> are not supported:

  • posix_fadvise()
  • posix_fallocate()

9.11. <fenv.h>

The following methods and variables in <fenv.h> are not supported:

  • feclearexcept()
  • fegetenv()
  • fegetexceptflag()
  • fegetround()
  • feholdexcept()
  • feraiseexcept()
  • fesetenv()
  • fesetexceptflag()
  • fesetround()
  • fetestexcept()
  • feupdateenv()

9.12. <fnmatch.h>

The following methods and variables in <fnmatch.h> are supported:

  • fnmatch()

9.13. <glob.h>

The following methods and variables in <glob.h> are supported:

  • glob()
  • globfree()

9.14. <grp.h>

The following methods and variables in <grp.h> are supported:

  • getgrgid()
  • getgrgid_r()
  • getgrnam()
  • getgrnam_r()

9.15. <inttypes.h>

The following methods and variables in <inttypes.h> are supported:

  • imaxabs()
  • imaxdiv()
  • strtoimax()
  • strtoumax()
  • wcstoimax()
  • wcstoumax()

9.16. <locale.h>

The following methods and variables in <locale.h> are supported:

  • localeconv()
  • setlocale()

9.17. <math.h>

The following methods and variables in <math.h> are supported:

  • acos()
  • acosf()
  • acosh()
  • acoshf()
  • acoshl()
  • acosl()
  • asin()
  • asinf()
  • asinh()
  • asinhf()
  • asinhl()
  • asinl()
  • atan()
  • atan2()
  • atan2f()
  • atan2l()
  • atanf()
  • atanh()
  • atanhf()
  • atanhl()
  • atanl()
  • cbrt()
  • cbrtf()
  • cbrtl()
  • ceil()
  • ceilf()
  • ceill()
  • copysign()
  • copysignf()
  • copysignl()
  • cos()
  • cosf()
  • cosh()
  • coshf()
  • coshl()
  • cosl()
  • erf()
  • erfc()
  • erfcf()
  • erfcl()
  • erff()
  • erfl()
  • exp()
  • exp2()
  • exp2f()
  • exp2l()
  • expf()
  • expl()
  • expm1()
  • expm1f()
  • expm1l()
  • fabs()
  • fabsf()
  • fabsl()
  • fdim()
  • fdimf()
  • fdiml()
  • floor()
  • floorf()
  • floorl()
  • fma()
  • fmaf()
  • fmal()
  • fmax()
  • fmaxf()
  • fmaxl()
  • fmin()
  • fminf()
  • fminl()
  • fmod()
  • fmodf()
  • fmodl()
  • frexp()
  • frexpf()
  • frexpl()
  • hypot()
  • hypotf()
  • hypotl()
  • ilogb()
  • ilogbf()
  • ilogbl()
  • isinf()
  • isnan()
  • ldexp()
  • ldexpf()
  • ldexpl()
  • lgamma()
  • lgammaf()
  • lgammal()
  • llrint()
  • llrintf()
  • llrintl()
  • llround()
  • llroundf()
  • llroundl()
  • log()
  • log10()
  • log10f()
  • log10l()
  • log1p()
  • log1pf()
  • log1pl()
  • log2()
  • log2f()
  • log2l()
  • logb()
  • logbf()
  • logbl()
  • logf()
  • logl()
  • lrint()
  • lrintf()
  • lrintl()
  • lround()
  • lroundf()
  • lroundl()
  • modf()
  • modff()
  • modfl()
  • nan()
  • nanf()
  • nanl()
  • nearbyint()
  • nearbyintf()
  • nearbyintl()
  • nextafter()
  • nextafterf()
  • nextafterl()
  • nexttoward()
  • nexttowardl()
  • pow()
  • powf()
  • powl()
  • remainder()
  • remainderf()
  • remainderl()
  • remquo()
  • remquof()
  • remquol()
  • rint()
  • rintf()
  • rintl()
  • round()
  • roundf()
  • roundl()
  • scalbln()
  • scalblnf()
  • scalblnl()
  • scalbn()
  • scalbnf()
  • scalbnl()
  • sin()
  • sinf()
  • sinh()
  • sinhf()
  • sinhl()
  • sinl()
  • sqrt()
  • sqrtf()
  • sqrtl()
  • tan()
  • tanf()
  • tanh()
  • tanhf()
  • tanhl()
  • tanl()
  • tgamma()
  • tgammaf()
  • tgammal()
  • trunc()
  • truncf()
  • truncl()

The following methods and variables in <math.h> are not supported:

  • fpclassify()
  • isfinite()
  • isgreater()
  • isgreaterequal()
  • isless()
  • islessequal()
  • islessgreater()
  • isnormal()
  • isunordered()
  • nexttowardf()
  • signbit()

9.18. <mqueue.h>

The following methods and variables in <mqueue.h> are supported:

  • mq_close()
  • mq_getattr()
  • mq_notify()
  • mq_open()
  • mq_receive()
  • mq_send()
  • mq_setattr()
  • mq_timedreceive()
  • mq_timedsend()
  • mq_unlink()

9.19. <net/if.h>

The following methods and variables in <net/if.h> are supported:

  • if_freenameindex()
  • if_indextoname()
  • if_nameindex()
  • if_nametoindex()

9.20. <netdb.h>

The following methods and variables in <netdb.h> are supported:

  • endhostent()
  • endnetent()
  • endprotoent()
  • endservent()
  • freeaddrinfo()
  • gai_strerror()
  • getaddrinfo()
  • gethostent()
  • getnameinfo()
  • getnetbyaddr()
  • getnetbyname()
  • getnetent()
  • getprotobyname()
  • getprotobynumber()
  • getprotoent()
  • getservbyname()
  • getservbyport()
  • getservent()
  • sethostent()
  • setnetent()
  • setprotoent()
  • setservent()

9.21. <pthread.h>

The following methods and variables in <pthread.h> are supported:

  • pthread_attr_destroy()
  • pthread_attr_getdetachstate()
  • pthread_attr_getguardsize()
  • pthread_attr_getinheritsched()
  • pthread_attr_getschedparam()
  • pthread_attr_getschedpolicy()
  • pthread_attr_getscope()
  • pthread_attr_getstack()
  • pthread_attr_getstackaddr()
  • pthread_attr_getstacksize()
  • pthread_attr_init()
  • pthread_attr_setdetachstate()
  • pthread_attr_setguardsize()
  • pthread_attr_setinheritsched()
  • pthread_attr_setschedparam()
  • pthread_attr_setschedpolicy()
  • pthread_attr_setscope()
  • pthread_attr_setstack()
  • pthread_attr_setstackaddr()
  • pthread_attr_setstacksize()
  • pthread_cancel()
  • pthread_cleanup_pop()
  • pthread_cleanup_push()
  • pthread_cond_broadcast()
  • pthread_cond_destroy()
  • pthread_cond_init()
  • pthread_cond_signal()
  • pthread_cond_timedwait()
  • pthread_cond_wait()
  • pthread_condattr_destroy()
  • pthread_condattr_getclock()
  • pthread_condattr_getpshared()
  • pthread_condattr_init()
  • pthread_condattr_setclock()
  • pthread_condattr_setpshared()
  • pthread_create()
  • pthread_detach()
  • pthread_equal()
  • pthread_exit()
  • pthread_getconcurrency()
  • pthread_getschedparam()
  • pthread_getspecific()
  • pthread_join()
  • pthread_key_create()
  • pthread_key_delete()
  • pthread_mutex_destroy()
  • pthread_mutex_getprioceiling()
  • pthread_mutex_init()
  • pthread_mutex_lock()
  • pthread_mutex_setprioceiling()
  • pthread_mutex_trylock()
  • pthread_mutex_unlock()
  • pthread_mutexattr_destroy()
  • pthread_mutexattr_getprioceiling()
  • pthread_mutexattr_getprotocol()
  • pthread_mutexattr_getpshared()
  • pthread_mutexattr_gettype()
  • pthread_mutexattr_init()
  • pthread_mutexattr_setprioceiling()
  • pthread_mutexattr_setprotocol()
  • pthread_mutexattr_setpshared()
  • pthread_mutexattr_settype()
  • pthread_once()
  • pthread_self()
  • pthread_setcancelstate()
  • pthread_setcanceltype()
  • pthread_setconcurrency()
  • pthread_setschedparam()
  • pthread_setschedprio()
  • pthread_setspecific()
  • pthread_testcancel()

The following methods in <pthread.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • pthread_atfork()
  • pthread_getcpuclockid()

9.22. <pwd.h>

The following methods and variables in <pwd.h> are supported:

  • getpwnam()
  • getpwnam_r()
  • getpwuid()
  • getpwuid_r()

9.23. <regex.h>

The following methods and variables in <regex.h> are supported:

  • regcomp()
  • regerror()
  • regexec()
  • regfree()

9.24. <sched.h>

The following methods and variables in <sched.h> are supported:

  • sched_get_priority_max()
  • sched_get_priority_min()
  • sched_rr_get_interval()
  • sched_yield()

The following methods in <sched.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • sched_getparam()
  • sched_getscheduler()
  • sched_setparam()
  • sched_setscheduler()

9.25. <semaphore.h>

The following methods and variables in <semaphore.h> are supported:

  • sem_close()
  • sem_destroy()
  • sem_getvalue()
  • sem_init()
  • sem_open()
  • sem_post()
  • sem_timedwait()
  • sem_trywait()
  • sem_unlink()
  • sem_wait()

9.26. <setjmp.h>

The following methods and variables in <setjmp.h> are supported:

  • longjmp()
  • setjmp()
  • siglongjmp()
  • sigsetjmp()

9.27. <signal.h>

The following methods and variables in <signal.h> are supported:

  • pthread_kill()
  • pthread_sigmask()
  • raise()
  • sigaction()
  • sigaddset()
  • sigdelset()
  • sigemptyset()
  • sigfillset()
  • sigismember()
  • signal()
  • sigpending()
  • sigprocmask()
  • sigqueue()
  • sigsuspend()
  • sigtimedwait()
  • sigwait()
  • sigwaitinfo()

9.28. <spawn.h>

The following methods and variables in <spawn.h> are not supported:

  • posix_spawn()
  • posix_spawn_file_actions_addclose()
  • posix_spawn_file_actions_adddup2()
  • posix_spawn_file_actions_addopen()
  • posix_spawn_file_actions_destroy()
  • posix_spawn_file_actions_init()
  • posix_spawnattr_destroy()
  • posix_spawnattr_getflags()
  • posix_spawnattr_getpgroup()
  • posix_spawnattr_getschedparam()
  • posix_spawnattr_getschedpolicy()
  • posix_spawnattr_getsigdefault()
  • posix_spawnattr_getsigmask()
  • posix_spawnattr_init()
  • posix_spawnattr_setflags()
  • posix_spawnattr_setpgroup()
  • posix_spawnattr_setschedparam()
  • posix_spawnattr_setschedpolicy()
  • posix_spawnattr_setsigdefault()
  • posix_spawnattr_setsigmask()
  • posix_spawnp()

9.29. <stdarg.h>

The following methods and variables in <stdarg.h> are supported:

  • va_arg()
  • va_copy()
  • va_end()
  • va_start()

9.30. <stdio.h>

The following methods and variables in <stdio.h> are supported:

  • clearerr()
  • ctermid()
  • fclose()
  • fdopen()
  • feof()
  • ferror()
  • fflush()
  • fgetc()
  • fgetpos()
  • fgets()
  • fileno()
  • flockfile()
  • fopen()
  • fprintf()
  • fputc()
  • fputs()
  • fread()
  • freopen()
  • fscanf()
  • fseek()
  • fseeko()
  • fsetpos()
  • ftell()
  • ftello()
  • ftrylockfile()
  • funlockfile()
  • fwrite()
  • getc()
  • getc_unlocked()
  • getchar()
  • getchar_unlocked()
  • gets()
  • perror()
  • printf()
  • putc()
  • putc_unlocked()
  • putchar()
  • putchar_unlocked()
  • puts()
  • remove()
  • rename()
  • rewind()
  • scanf()
  • setbuf()
  • setvbuf()
  • snprintf()
  • sprintf()
  • sscanf()
  • stderr
  • stdin
  • stdout
  • tmpfile()
  • tmpnam()
  • ungetc()
  • vfprintf()
  • vfscanf()
  • vprintf()
  • vscanf()
  • vsnprintf()
  • vsprintf()
  • vsscanf()

The following methods and variables in <stdio.h> are not supported:

  • pclose()
  • popen()

9.31. <stdlib.h>

The following methods and variables in <stdlib.h> are supported:

  • _Exit()
  • abort()
  • abs()
  • atexit()
  • atof()
  • atoi()
  • atol()
  • atoll()
  • bsearch()
  • calloc()
  • div()
  • exit()
  • free()
  • getenv()
  • labs()
  • ldiv()
  • llabs()
  • lldiv()
  • malloc()
  • mblen()
  • mbstowcs()
  • mbtowc()
  • posix_memalign()
  • qsort()
  • rand()
  • rand_r()
  • realloc()
  • setenv()
  • srand()
  • strtod()
  • strtof()
  • strtol()
  • strtold()
  • strtoll()
  • strtoul()
  • strtoull()
  • unsetenv()
  • wcstombs()
  • wctomb()

The following methods in <stdlib.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • system()

9.32. <string.h>

The following methods and variables in <string.h> are supported:

  • memchr()
  • memcmp()
  • memcpy()
  • memmove()
  • memset()
  • strcat()
  • strchr()
  • strcmp()
  • strcoll()
  • strcpy()
  • strcspn()
  • strerror()
  • strerror_r()
  • strlen()
  • strncat()
  • strncmp()
  • strncpy()
  • strpbrk()
  • strrchr()
  • strspn()
  • strstr()
  • strtok()
  • strtok_r()
  • strxfrm()

9.33. <sys/mman.h>

The following methods and variables in <sys/mman.h> are supported:

  • mlock()
  • mlockall()
  • mmap()
  • mprotect()
  • msync()
  • munlock()
  • munmap()
  • posix_madvise()
  • shm_open()
  • shm_unlink()

9.34. <sys/select.h>

The following methods and variables in <sys/select.h> are supported:

  • FD_CLR()
  • FD_ISSET()
  • FD_SET()
  • FD_ZERO()
  • select()

The following methods and variables in <sys/select.h> are not supported:

  • pselect()

9.35. <sys/socket.h>

The following methods and variables in <sys/socket.h> are supported:

  • accept()
  • bind()
  • connect()
  • getpeername()
  • getsockname()
  • getsockopt()
  • listen()
  • recv()
  • recvfrom()
  • recvmsg()
  • send()
  • sendmsg()
  • sendto()
  • setsockopt()
  • shutdown()
  • socket()
  • socketpair()

The following methods and variables in <sys/socket.h> are not supported:

  • sockatmark()

9.36. <sys/stat.h>

The following methods and variables in <sys/stat.h> are supported:

  • chmod()
  • fchmod()
  • fstat()
  • lstat()
  • mkdir()
  • mkfifo()
  • stat()
  • umask()

9.37. <sys/time.h>

The following methods and variables in <sys/time.h> are supported:

  • times()
  • utimes()

9.38. <sys/utsname.h>

The following methods and variables in <sys/utsname.h> are supported:

  • uname()

9.39. <sys/wait.h>

The following methods and variables in <sys/wait.h> are supported:

  • wait()

9.40. <syslog.h>

The following methods and variables in <syslog.h> are not supported:

  • closelog()
  • openlog()
  • setlogmask()
  • syslog()

9.41. <termios.h>

The following methods and variables in <termios.h> are supported:

  • cfgetispeed()
  • cfgetospeed()
  • cfsetispeed()
  • cfsetospeed()
  • tcdrain()
  • tcflow()
  • tcflush()
  • tcgetattr()
  • tcsendbreak()
  • tcsetattr()

9.42. <time.h>

The following methods and variables in <time.h> are supported:

  • asctime()
  • asctime_r()
  • clock()
  • clock_getres()
  • clock_gettime()
  • clock_nanosleep()
  • clock_settime()
  • ctime()
  • ctime_r()
  • difftime()
  • gmtime()
  • gmtime_r()
  • localtime()
  • localtime_r()
  • mktime()
  • nanosleep()
  • strftime()
  • time()
  • timer_create()
  • timer_delete()
  • timer_getoverrun()
  • timer_gettime()
  • timer_settime()
  • tzname
  • tzset()

The following methods in <time.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • clock_getcpuclockid()

9.43. <trace.h>

The following methods and variables in <trace.h> are not supported:

  • posix_trace_attr_destroy()
  • posix_trace_attr_getclockres()
  • posix_trace_attr_getcreatetime()
  • posix_trace_attr_getgenversion()
  • posix_trace_attr_getinherited()
  • posix_trace_attr_getlogfullpolicy()
  • posix_trace_attr_getlogsize()
  • posix_trace_attr_getmaxdatasize()
  • posix_trace_attr_getmaxsystemeventsize()
  • posix_trace_attr_getmaxusereventsize()
  • posix_trace_attr_getname()
  • posix_trace_attr_getstreamfullpolicy()
  • posix_trace_attr_getstreamsize()
  • posix_trace_attr_init()
  • posix_trace_attr_setinherited()
  • posix_trace_attr_setlogfullpolicy()
  • posix_trace_attr_setlogsize()
  • posix_trace_attr_setmaxdatasize()
  • posix_trace_attr_setname()
  • posix_trace_attr_setstreamfullpolicy()
  • posix_trace_attr_setstreamsize()
  • posix_trace_clear()
  • posix_trace_close()
  • posix_trace_create()
  • posix_trace_create_withlog()
  • posix_trace_event()
  • posix_trace_eventid_equal()
  • posix_trace_eventid_get_name()
  • posix_trace_eventid_open()
  • posix_trace_eventset_add()
  • posix_trace_eventset_del()
  • posix_trace_eventset_empty()
  • posix_trace_eventset_fill()
  • posix_trace_eventset_ismember()
  • posix_trace_eventtypelist_getnext_id()
  • posix_trace_eventtypelist_rewind()
  • posix_trace_flush()
  • posix_trace_get_attr()
  • posix_trace_get_filter()
  • posix_trace_get_status()
  • posix_trace_getnext_event()
  • posix_trace_open()
  • posix_trace_rewind()
  • posix_trace_set_filter()
  • posix_trace_shutdown()
  • posix_trace_start()
  • posix_trace_stop()
  • posix_trace_timedgetnext_event()
  • posix_trace_trid_eventid_open()
  • posix_trace_trygetnext_event()

9.44. <unistd.h>

The following methods and variables in <unistd.h> are supported:

  • _exit()
  • access()
  • chdir()
  • chown()
  • close()
  • dup()
  • dup2()
  • environ
  • fchown()
  • fdatasync()
  • fpathconf()
  • fsync()
  • ftruncate()
  • getcwd()
  • getegid()
  • geteuid()
  • getgid()
  • getgroups()
  • gethostname()
  • getlogin()
  • getlogin_r()
  • getopt()
  • getpgrp()
  • getpid()
  • getppid()
  • getuid()
  • isatty()
  • link()
  • lseek()
  • optarg
  • opterr
  • optind
  • optopt
  • pathconf()
  • pipe()
  • read()
  • readlink()
  • rmdir()
  • setegid()
  • seteuid()
  • setgid()
  • setpgid()
  • setsid()
  • setuid()
  • sleep()
  • symlink()
  • sysconf()
  • tcgetpgrp()
  • tcsetpgrp()
  • ttyname()
  • ttyname_r()
  • unlink()
  • write()

The following methods in <unistd.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • execl()
  • execle()
  • execlp()
  • execv()
  • execve()
  • execvp()
  • fork()

The following methods and variables in <unistd.h> are not supported:

  • confstr()

9.45. <utime.h>

The following methods and variables in <utime.h> are supported:

  • utime()

9.46. <wchar.h>

The following methods and variables in <wchar.h> are supported:

  • btowc()
  • fgetwc()
  • fgetws()
  • fputwc()
  • fputws()
  • fwide()
  • fwprintf()
  • fwscanf()
  • getwc()
  • getwchar()
  • mbrlen()
  • mbrtowc()
  • mbsinit()
  • mbsrtowcs()
  • putwc()
  • putwchar()
  • swprintf()
  • swscanf()
  • ungetwc()
  • vfwprintf()
  • vfwscanf()
  • vswprintf()
  • vswscanf()
  • vwprintf()
  • vwscanf()
  • wcrtomb()
  • wcscat()
  • wcschr()
  • wcscmp()
  • wcscoll()
  • wcscpy()
  • wcscspn()
  • wcsftime()
  • wcslen()
  • wcsncat()
  • wcsncmp()
  • wcsncpy()
  • wcspbrk()
  • wcsrchr()
  • wcsrtombs()
  • wcsspn()
  • wcsstr()
  • wcstod()
  • wcstof()
  • wcstok()
  • wcstol()
  • wcstold()
  • wcstoll()
  • wcstoul()
  • wcstoull()
  • wcsxfrm()
  • wctob()
  • wmemchr()
  • wmemcmp()
  • wmemcpy()
  • wmemmove()
  • wmemset()
  • wprintf()
  • wscanf()

9.47. <wctype.h>

The following methods and variables in <wctype.h> are supported:

  • iswalnum()
  • iswalpha()
  • iswblank()
  • iswcntrl()
  • iswctype()
  • iswdigit()
  • iswgraph()
  • iswlower()
  • iswprint()
  • iswpunct()
  • iswspace()
  • iswupper()
  • iswxdigit()
  • towctrans()
  • towlower()
  • towupper()
  • wctrans()
  • wctype()

9.48. <wordexp.h>

The following methods and variables in <wordexp.h> are not supported:

  • wordexp()
  • wordfree()

10. C99 Standard Library

This chapter has a subsection per header file to detail the methods provided by RTEMS that are in that header file.

10.1. Summary

The follow table summarizes alignment with the C99 Standard Library standard:

Supported 463
ENOSYS 0
Not supported 22

10.2. <assert.h>

The following methods and variables in <assert.h> are supported:

  • assert()

10.3. <complex.h>

The following methods and variables in <complex.h> are supported:

  • cabs()
  • cabsf()
  • cabsl()
  • cacos()
  • cacosf()
  • cacosh()
  • cacoshf()
  • cacoshl()
  • cacosl()
  • carg()
  • cargf()
  • cargl()
  • casin()
  • casinf()
  • casinh()
  • casinhf()
  • casinhl()
  • casinl()
  • catan()
  • catanf()
  • catanh()
  • catanhf()
  • catanhl()
  • catanl()
  • ccos()
  • ccosf()
  • ccosh()
  • ccoshf()
  • ccoshl()
  • ccosl()
  • cexp()
  • cexpf()
  • cexpl()
  • cimag()
  • cimagf()
  • cimagl()
  • clog()
  • clogf()
  • clogl()
  • conj()
  • conjf()
  • conjl()
  • cpow()
  • cpowf()
  • cpowl()
  • cproj()
  • cprojf()
  • cprojl()
  • creal()
  • crealf()
  • creall()
  • csin()
  • csinf()
  • csinh()
  • csinhf()
  • csinhl()
  • csinl()
  • csqrt()
  • csqrtf()
  • csqrtl()
  • ctan()
  • ctanf()
  • ctanh()
  • ctanhf()
  • ctanhl()
  • ctanl()

10.4. <ctype.h>

The following methods and variables in <ctype.h> are supported:

  • isalnum()
  • isalpha()
  • isblank()
  • iscntrl()
  • isdigit()
  • isgraph()
  • islower()
  • isprint()
  • ispunct()
  • isspace()
  • isupper()
  • isxdigit()
  • tolower()
  • toupper()

10.5. <errno.h>

The following methods and variables in <errno.h> are supported:

  • errno

10.6. <fenv.h>

The following methods and variables in <fenv.h> are not supported:

  • feclearexcept()
  • fegetenv()
  • fegetexceptflag()
  • fegetround()
  • feholdexcept()
  • feraiseexcept()
  • fesetenv()
  • fesetexceptflag()
  • fesetround()
  • fetestexcept()
  • feupdateenv()

10.7. <inttypes.h>

The following methods and variables in <inttypes.h> are supported:

  • imaxabs()
  • imaxdiv()
  • strtoimax()
  • strtoumax()
  • wcstoimax()
  • wcstoumax()

10.8. <locale.h>

The following methods and variables in <locale.h> are supported:

  • localeconv()
  • setlocale()

10.9. <math.h>

The following methods and variables in <math.h> are supported:

  • acos()
  • acosf()
  • acosh()
  • acoshf()
  • acoshl()
  • acosl()
  • asin()
  • asinf()
  • asinh()
  • asinhf()
  • asinhl()
  • asinl()
  • atan()
  • atan2()
  • atan2f()
  • atan2l()
  • atanf()
  • atanh()
  • atanhf()
  • atanhl()
  • atanl()
  • cbrt()
  • cbrtf()
  • cbrtl()
  • ceil()
  • ceilf()
  • ceill()
  • copysign()
  • copysignf()
  • copysignl()
  • cos()
  • cosf()
  • cosh()
  • coshf()
  • coshl()
  • cosl()
  • erf()
  • erfc()
  • erfcf()
  • erfcl()
  • erff()
  • erfl()
  • exp()
  • exp2()
  • exp2f()
  • exp2l()
  • expf()
  • expl()
  • expm1()
  • expm1f()
  • expm1l()
  • fabs()
  • fabsf()
  • fabsl()
  • fdim()
  • fdimf()
  • fdiml()
  • floor()
  • floorf()
  • floorl()
  • fma()
  • fmaf()
  • fmal()
  • fmax()
  • fmaxf()
  • fmaxl()
  • fmin()
  • fminf()
  • fminl()
  • fmod()
  • fmodf()
  • fmodl()
  • frexp()
  • frexpf()
  • frexpl()
  • hypot()
  • hypotf()
  • hypotl()
  • ilogb()
  • ilogbf()
  • ilogbl()
  • isinf()
  • isnan()
  • ldexp()
  • ldexpf()
  • ldexpl()
  • lgamma()
  • lgammaf()
  • lgammal()
  • llrint()
  • llrintf()
  • llrintl()
  • llround()
  • llroundf()
  • llroundl()
  • log()
  • log10()
  • log10f()
  • log10l()
  • log1p()
  • log1pf()
  • log1pl()
  • log2()
  • log2f()
  • log2l()
  • logb()
  • logbf()
  • logbl()
  • logf()
  • logl()
  • lrint()
  • lrintf()
  • lrintl()
  • lround()
  • lroundf()
  • lroundl()
  • modf()
  • modff()
  • modfl()
  • nan()
  • nanf()
  • nanl()
  • nearbyint()
  • nearbyintf()
  • nearbyintl()
  • nextafter()
  • nextafterf()
  • nextafterl()
  • nexttoward()
  • nexttowardl()
  • pow()
  • powf()
  • powl()
  • remainder()
  • remainderf()
  • remainderl()
  • remquo()
  • remquof()
  • remquol()
  • rint()
  • rintf()
  • rintl()
  • round()
  • roundf()
  • roundl()
  • scalbln()
  • scalblnf()
  • scalblnl()
  • scalbn()
  • scalbnf()
  • scalbnl()
  • sin()
  • sinf()
  • sinh()
  • sinhf()
  • sinhl()
  • sinl()
  • sqrt()
  • sqrtf()
  • sqrtl()
  • tan()
  • tanf()
  • tanh()
  • tanhf()
  • tanhl()
  • tanl()
  • tgamma()
  • tgammaf()
  • tgammal()
  • trunc()
  • truncf()
  • truncl()

The following methods and variables in <math.h> are not supported:

  • fpclassify()
  • isfinite()
  • isgreater()
  • isgreaterequal()
  • isless()
  • islessequal()
  • islessgreater()
  • isnormal()
  • isunordered()
  • nexttowardf()
  • signbit()

10.10. <setjmp.h>

The following methods and variables in <setjmp.h> are supported:

  • longjmp()
  • setjmp()

10.11. <signal.h>

The following methods and variables in <signal.h> are supported:

  • raise()
  • signal()

10.12. <stdarg.h>

The following methods and variables in <stdarg.h> are supported:

  • va_arg()
  • va_copy()
  • va_end()
  • va_start()

10.13. <stddef.h>

The following methods and variables in <stddef.h> are supported:

  • offsetof()

10.14. <stdio.h>

The following methods and variables in <stdio.h> are supported:

  • clearerr()
  • fclose()
  • feof()
  • ferror()
  • fflush()
  • fgetc()
  • fgetpos()
  • fgets()
  • fileno()
  • fopen()
  • fprintf()
  • fputc()
  • fputs()
  • fread()
  • freopen()
  • fscanf()
  • fseek()
  • fsetpos()
  • ftell()
  • fwrite()
  • getc()
  • getchar()
  • gets()
  • perror()
  • printf()
  • putc()
  • putchar()
  • puts()
  • remove()
  • rename()
  • rewind()
  • scanf()
  • setbuf()
  • setvbuf()
  • snprintf()
  • sprintf()
  • sscanf()
  • stderr
  • stdin
  • stdout
  • tmpfile()
  • tmpnam()
  • ungetc()
  • vfprintf()
  • vfscanf()
  • vprintf()
  • vscanf()
  • vsnprintf()
  • vsprintf()
  • vsscanf()

10.15. <stdlib.h>

The following methods and variables in <stdlib.h> are supported:

  • _Exit()
  • abs()
  • atexit()
  • atof()
  • atoi()
  • atol()
  • atoll()
  • bsearch()
  • calloc()
  • div()
  • exit()
  • free()
  • getenv()
  • labs()
  • ldiv()
  • llabs()
  • lldiv()
  • malloc()
  • mblen()
  • mbstowcs()
  • mbtowc()
  • qsort()
  • rand()
  • realloc()
  • srand()
  • strtod()
  • strtof()
  • strtol()
  • strtold()
  • strtoll()
  • strtoul()
  • strtoull()
  • wcstombs()
  • wctomb()

10.16. <string.h>

The following methods and variables in <string.h> are supported:

  • memchr()
  • memcmp()
  • memcpy()
  • memmove()
  • memset()
  • strcat()
  • strchr()
  • strcmp()
  • strcoll()
  • strcpy()
  • strcspn()
  • strerror()
  • strlen()
  • strncat()
  • strncmp()
  • strncpy()
  • strpbrk()
  • strrchr()
  • strspn()
  • strstr()
  • strtok()
  • strxfrm()

10.17. <time.h>

The following methods and variables in <time.h> are supported:

  • asctime()
  • clock()
  • ctime()
  • difftime()
  • gmtime()
  • localtime()
  • mktime()
  • strftime()
  • time()

10.18. <wchar.h>

The following methods and variables in <wchar.h> are supported:

  • btowc()
  • fgetwc()
  • fgetws()
  • fputwc()
  • fputws()
  • fwide()
  • fwprintf()
  • fwscanf()
  • getwc()
  • getwchar()
  • mbrlen()
  • mbrtowc()
  • mbsinit()
  • mbsrtowcs()
  • putwc()
  • putwchar()
  • swprintf()
  • swscanf()
  • ungetwc()
  • vfwprintf()
  • vfwscanf()
  • vswprintf()
  • vswscanf()
  • vwprintf()
  • vwscanf()
  • wcrtomb()
  • wcscat()
  • wcschr()
  • wcscmp()
  • wcscoll()
  • wcscpy()
  • wcscspn()
  • wcsftime()
  • wcslen()
  • wcsncat()
  • wcsncmp()
  • wcsncpy()
  • wcspbrk()
  • wcsrchr()
  • wcsrtombs()
  • wcsspn()
  • wcsstr()
  • wcstod()
  • wcstof()
  • wcstok()
  • wcstol()
  • wcstold()
  • wcstoll()
  • wcstoul()
  • wcstoull()
  • wcsxfrm()
  • wctob()
  • wmemchr()
  • wmemcmp()
  • wmemcpy()
  • wmemmove()
  • wmemset()
  • wprintf()
  • wscanf()

10.19. <wctype.h>

The following methods and variables in <wctype.h> are supported:

  • iswalnum()
  • iswalpha()
  • iswblank()
  • iswcntrl()
  • iswctype()
  • iswdigit()
  • iswgraph()
  • iswlower()
  • iswprint()
  • iswpunct()
  • iswspace()
  • iswupper()
  • iswxdigit()
  • towctrans()
  • towlower()
  • towupper()
  • wctrans()
  • wctype()

11. C11 Standard Library

This chapter has a subsection per header file to detail the methods provided by RTEMS that are in that header file.

11.1. Summary

The follow table summarizes alignment with the C11 Standard Library standard:

Supported 486
ENOSYS 0
Not supported 22

11.2. <assert.h>

The following methods and variables in <assert.h> are supported:

  • assert()

11.3. <complex.h>

The following methods and variables in <complex.h> are supported:

  • cabs()
  • cabsf()
  • cabsl()
  • cacos()
  • cacosf()
  • cacosh()
  • cacoshf()
  • cacoshl()
  • cacosl()
  • carg()
  • cargf()
  • cargl()
  • casin()
  • casinf()
  • casinh()
  • casinhf()
  • casinhl()
  • casinl()
  • catan()
  • catanf()
  • catanh()
  • catanhf()
  • catanhl()
  • catanl()
  • ccos()
  • ccosf()
  • ccosh()
  • ccoshf()
  • ccoshl()
  • ccosl()
  • cexp()
  • cexpf()
  • cexpl()
  • cimag()
  • cimagf()
  • cimagl()
  • clog()
  • clogf()
  • clogl()
  • conj()
  • conjf()
  • conjl()
  • cpow()
  • cpowf()
  • cpowl()
  • cproj()
  • cprojf()
  • cprojl()
  • creal()
  • crealf()
  • creall()
  • csin()
  • csinf()
  • csinh()
  • csinhf()
  • csinhl()
  • csinl()
  • csqrt()
  • csqrtf()
  • csqrtl()
  • ctan()
  • ctanf()
  • ctanh()
  • ctanhf()
  • ctanhl()
  • ctanl()

11.4. <ctype.h>

The following methods and variables in <ctype.h> are supported:

  • isalnum()
  • isalpha()
  • isblank()
  • iscntrl()
  • isdigit()
  • isgraph()
  • islower()
  • isprint()
  • ispunct()
  • isspace()
  • isupper()
  • isxdigit()
  • tolower()
  • toupper()

11.5. <errno.h>

The following methods and variables in <errno.h> are supported:

  • errno

11.6. <fenv.h>

The following methods and variables in <fenv.h> are not supported:

  • feclearexcept()
  • fegetenv()
  • fegetexceptflag()
  • fegetround()
  • feholdexcept()
  • feraiseexcept()
  • fesetenv()
  • fesetexceptflag()
  • fesetround()
  • fetestexcept()
  • feupdateenv()

11.7. <inttypes.h>

The following methods and variables in <inttypes.h> are supported:

  • imaxabs()
  • imaxdiv()
  • strtoimax()
  • strtoumax()
  • wcstoimax()
  • wcstoumax()

11.8. <locale.h>

The following methods and variables in <locale.h> are supported:

  • localeconv()
  • setlocale()

11.9. <math.h>

The following methods and variables in <math.h> are supported:

  • acos()
  • acosf()
  • acosh()
  • acoshf()
  • acoshl()
  • acosl()
  • asin()
  • asinf()
  • asinh()
  • asinhf()
  • asinhl()
  • asinl()
  • atan()
  • atan2()
  • atan2f()
  • atan2l()
  • atanf()
  • atanh()
  • atanhf()
  • atanhl()
  • atanl()
  • cbrt()
  • cbrtf()
  • cbrtl()
  • ceil()
  • ceilf()
  • ceill()
  • copysign()
  • copysignf()
  • copysignl()
  • cos()
  • cosf()
  • cosh()
  • coshf()
  • coshl()
  • cosl()
  • erf()
  • erfc()
  • erfcf()
  • erfcl()
  • erff()
  • erfl()
  • exp()
  • exp2()
  • exp2f()
  • exp2l()
  • expf()
  • expl()
  • expm1()
  • expm1f()
  • expm1l()
  • fabs()
  • fabsf()
  • fabsl()
  • fdim()
  • fdimf()
  • fdiml()
  • floor()
  • floorf()
  • floorl()
  • fma()
  • fmaf()
  • fmal()
  • fmax()
  • fmaxf()
  • fmaxl()
  • fmin()
  • fminf()
  • fminl()
  • fmod()
  • fmodf()
  • fmodl()
  • frexp()
  • frexpf()
  • frexpl()
  • hypot()
  • hypotf()
  • hypotl()
  • ilogb()
  • ilogbf()
  • ilogbl()
  • isinf()
  • isnan()
  • ldexp()
  • ldexpf()
  • ldexpl()
  • lgamma()
  • lgammaf()
  • lgammal()
  • llrint()
  • llrintf()
  • llrintl()
  • llround()
  • llroundf()
  • llroundl()
  • log()
  • log10()
  • log10f()
  • log10l()
  • log1p()
  • log1pf()
  • log1pl()
  • log2()
  • log2f()
  • log2l()
  • logb()
  • logbf()
  • logbl()
  • logf()
  • logl()
  • lrint()
  • lrintf()
  • lrintl()
  • lround()
  • lroundf()
  • lroundl()
  • modf()
  • modff()
  • modfl()
  • nan()
  • nanf()
  • nanl()
  • nearbyint()
  • nearbyintf()
  • nearbyintl()
  • nextafter()
  • nextafterf()
  • nextafterl()
  • nexttoward()
  • nexttowardl()
  • pow()
  • powf()
  • powl()
  • remainder()
  • remainderf()
  • remainderl()
  • remquo()
  • remquof()
  • remquol()
  • rint()
  • rintf()
  • rintl()
  • round()
  • roundf()
  • roundl()
  • scalbln()
  • scalblnf()
  • scalblnl()
  • scalbn()
  • scalbnf()
  • scalbnl()
  • sin()
  • sinf()
  • sinh()
  • sinhf()
  • sinhl()
  • sinl()
  • sqrt()
  • sqrtf()
  • sqrtl()
  • tan()
  • tanf()
  • tanh()
  • tanhf()
  • tanhl()
  • tanl()
  • tgamma()
  • tgammaf()
  • tgammal()
  • trunc()
  • truncf()
  • truncl()

The following methods and variables in <math.h> are not supported:

  • fpclassify()
  • isfinite()
  • isgreater()
  • isgreaterequal()
  • isless()
  • islessequal()
  • islessgreater()
  • isnormal()
  • isunordered()
  • nexttowardf()
  • signbit()

11.10. <setjmp.h>

The following methods and variables in <setjmp.h> are supported:

  • longjmp()
  • setjmp()

11.11. <signal.h>

The following methods and variables in <signal.h> are supported:

  • raise()
  • signal()

11.12. <stdarg.h>

The following methods and variables in <stdarg.h> are supported:

  • va_arg()
  • va_copy()
  • va_end()
  • va_start()

11.13. <stddef.h>

The following methods and variables in <stddef.h> are supported:

  • offsetof()

11.14. <stdio.h>

The following methods and variables in <stdio.h> are supported:

  • clearerr()
  • fclose()
  • feof()
  • ferror()
  • fflush()
  • fgetc()
  • fgetpos()
  • fgets()
  • fopen()
  • fprintf()
  • fputc()
  • fputs()
  • fread()
  • freopen()
  • fscanf()
  • fseek()
  • fsetpos()
  • ftell()
  • fwrite()
  • getc()
  • getchar()
  • perror()
  • printf()
  • putc()
  • putchar()
  • puts()
  • remove()
  • rename()
  • rewind()
  • scanf()
  • setbuf()
  • setvbuf()
  • snprintf()
  • sprintf()
  • sscanf()
  • stderr
  • stdin
  • stdout
  • tmpfile()
  • tmpnam()
  • ungetc()
  • vfprintf()
  • vfscanf()
  • vprintf()
  • vscanf()
  • vsnprintf()
  • vsprintf()
  • vsscanf()

11.15. <stdlib.h>

The following methods and variables in <stdlib.h> are supported:

  • _Exit()
  • abs()
  • atexit()
  • atof()
  • atoi()
  • atol()
  • atoll()
  • bsearch()
  • calloc()
  • div()
  • exit()
  • free()
  • getenv()
  • labs()
  • ldiv()
  • llabs()
  • lldiv()
  • malloc()
  • mblen()
  • mbstowcs()
  • mbtowc()
  • qsort()
  • rand()
  • realloc()
  • srand()
  • strtod()
  • strtof()
  • strtol()
  • strtold()
  • strtoll()
  • strtoul()
  • strtoull()
  • wcstombs()
  • wctomb()

11.16. <string.h>

The following methods and variables in <string.h> are supported:

  • memchr()
  • memcmp()
  • memcpy()
  • memmove()
  • memset()
  • strcat()
  • strchr()
  • strcmp()
  • strcoll()
  • strcpy()
  • strcspn()
  • strerror()
  • strlen()
  • strncat()
  • strncmp()
  • strncpy()
  • strpbrk()
  • strrchr()
  • strspn()
  • strstr()
  • strtok()
  • strxfrm()

11.17. <threads.h>

The following methods and variables in <threads.h> are supported:

  • call_once()
  • cnd_broadcast()
  • cnd_destroy()
  • cnd_init()
  • cnd_signal()
  • cnd_timedwait()
  • cnd_wait()
  • mtx_destroy()
  • mtx_init()
  • mtx_lock()
  • mtx_timedlock()
  • mtx_trylock()
  • mtx_unlock()
  • thrd_create()
  • thrd_current()
  • thrd_detach()
  • thrd_equal()
  • thrd_exit()
  • thrd_join()
  • thrd_sleep()
  • thrd_yield()
  • tss_create()
  • tss_delete()
  • tss_get()
  • tss_set()

11.18. <time.h>

The following methods and variables in <time.h> are supported:

  • asctime()
  • clock()
  • ctime()
  • difftime()
  • gmtime()
  • localtime()
  • mktime()
  • strftime()
  • time()

11.19. <wchar.h>

The following methods and variables in <wchar.h> are supported:

  • btowc()
  • fgetwc()
  • fgetws()
  • fputwc()
  • fputws()
  • fwide()
  • fwprintf()
  • fwscanf()
  • getwc()
  • getwchar()
  • mbrlen()
  • mbrtowc()
  • mbsinit()
  • mbsrtowcs()
  • putwc()
  • putwchar()
  • swprintf()
  • swscanf()
  • ungetwc()
  • vfwprintf()
  • vfwscanf()
  • vswprintf()
  • vswscanf()
  • vwprintf()
  • vwscanf()
  • wcrtomb()
  • wcscat()
  • wcschr()
  • wcscmp()
  • wcscoll()
  • wcscpy()
  • wcscspn()
  • wcsftime()
  • wcslen()
  • wcsncat()
  • wcsncmp()
  • wcsncpy()
  • wcspbrk()
  • wcsrchr()
  • wcsrtombs()
  • wcsspn()
  • wcsstr()
  • wcstod()
  • wcstof()
  • wcstok()
  • wcstol()
  • wcstold()
  • wcstoll()
  • wcstoul()
  • wcstoull()
  • wcsxfrm()
  • wctob()
  • wmemchr()
  • wmemcmp()
  • wmemcpy()
  • wmemmove()
  • wmemset()
  • wprintf()
  • wscanf()

11.20. <wctype.h>

The following methods and variables in <wctype.h> are supported:

  • iswalnum()
  • iswalpha()
  • iswblank()
  • iswcntrl()
  • iswctype()
  • iswdigit()
  • iswgraph()
  • iswlower()
  • iswprint()
  • iswpunct()
  • iswspace()
  • iswupper()
  • iswxdigit()
  • towctrans()
  • towlower()
  • towupper()
  • wctrans()
  • wctype()

12. FACE 2.1 Security

This chapter has a subsection per header file to detail the methods provided by RTEMS that are in that header file.

12.1. Summary

The follow table summarizes alignment with the FACE 2.1 Security standard:

Supported 162
ENOSYS 1
Not supported 0

12.2. <arpa/inet.h>

The following methods and variables in <arpa/inet.h> are supported:

  • htonl()
  • htons()
  • inet_ntop()
  • inet_pton()
  • ntohl()
  • ntohs()

12.3. <ctype.h>

The following methods and variables in <ctype.h> are supported:

  • isalnum()
  • isalpha()
  • iscntrl()
  • isdigit()
  • isgraph()
  • islower()
  • isprint()
  • ispunct()
  • isspace()
  • isupper()
  • isxdigit()
  • tolower()
  • toupper()

12.4. <devctl.h>

The following methods and variables in <devctl.h> are supported:

  • posix_devctl()

12.5. <errno.h>

The following methods and variables in <errno.h> are supported:

  • errno

12.6. <math.h>

The following methods and variables in <math.h> are supported:

  • acos()
  • acosh()
  • asin()
  • asinh()
  • atan()
  • atan2()
  • atanh()
  • ceil()
  • cos()
  • cosh()
  • exp()
  • fabs()
  • floor()
  • fmod()
  • frexp()
  • isinf()
  • isnan()
  • ldexp()
  • log()
  • log10()
  • modf()
  • pow()
  • sin()
  • sinh()
  • sqrt()
  • tan()
  • tanh()

12.7. <netdb.h>

The following methods and variables in <netdb.h> are supported:

  • freeaddrinfo()
  • getaddrinfo()
  • getnameinfo()

12.8. <pthread.h>

The following methods and variables in <pthread.h> are supported:

  • pthread_attr_destroy()
  • pthread_attr_getinheritsched()
  • pthread_attr_getschedparam()
  • pthread_attr_getschedpolicy()
  • pthread_attr_getscope()
  • pthread_attr_getstack()
  • pthread_attr_init()
  • pthread_attr_setinheritsched()
  • pthread_attr_setschedparam()
  • pthread_attr_setschedpolicy()
  • pthread_attr_setscope()
  • pthread_attr_setstack()
  • pthread_create()
  • pthread_equal()
  • pthread_getschedparam()
  • pthread_mutex_init()
  • pthread_mutex_lock()
  • pthread_mutex_timedlock()
  • pthread_mutex_trylock()
  • pthread_mutex_unlock()
  • pthread_mutexattr_destroy()
  • pthread_mutexattr_getprioceiling()
  • pthread_mutexattr_getprotocol()
  • pthread_mutexattr_init()
  • pthread_mutexattr_setprioceiling()
  • pthread_mutexattr_setprotocol()
  • pthread_once()
  • pthread_self()
  • pthread_setschedparam()
  • pthread_setschedprio()

The following methods in <pthread.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • pthread_getcpuclockid()

12.9. <sched.h>

The following methods and variables in <sched.h> are supported:

  • sched_get_priority_max()
  • sched_get_priority_min()
  • sched_yield()

12.10. <semaphore.h>

The following methods and variables in <semaphore.h> are supported:

  • sem_close()
  • sem_getvalue()
  • sem_init()
  • sem_open()
  • sem_post()
  • sem_timedwait()
  • sem_trywait()
  • sem_wait()

12.11. <signal.h>

The following methods and variables in <signal.h> are supported:

  • pthread_sigmask()
  • sigaction()
  • sigaddset()
  • sigdelset()
  • sigemptyset()
  • sigfillset()
  • sigismember()
  • sigpending()
  • sigqueue()
  • sigsuspend()
  • sigtimedwait()
  • sigwait()
  • sigwaitinfo()

12.12. <stdlib.h>

The following methods and variables in <stdlib.h> are supported:

  • abs()
  • atof()
  • atoi()
  • atol()
  • div()
  • labs()
  • ldiv()
  • malloc()
  • rand_r()
  • strtod()
  • strtol()
  • strtoul()

12.13. <string.h>

The following methods and variables in <string.h> are supported:

  • memchr()
  • memcmp()
  • memcpy()
  • memmove()
  • memset()
  • strcat()
  • strchr()
  • strcmp()
  • strcpy()
  • strcspn()
  • strlen()
  • strncat()
  • strncmp()
  • strncpy()
  • strpbrk()
  • strrchr()
  • strspn()
  • strstr()
  • strtok_r()

12.14. <sys/mman.h>

The following methods and variables in <sys/mman.h> are supported:

  • mmap()
  • shm_open()

12.15. <sys/socket.h>

The following methods and variables in <sys/socket.h> are supported:

  • bind()
  • connect()
  • getpeername()
  • getsockname()
  • getsockopt()
  • recv()
  • recvfrom()
  • send()
  • sendto()
  • setsockopt()
  • shutdown()
  • socket()

12.16. <sys/stat.h>

The following methods and variables in <sys/stat.h> are supported:

  • stat()

12.17. <time.h>

The following methods and variables in <time.h> are supported:

  • clock_getres()
  • clock_gettime()
  • clock_settime()
  • nanosleep()
  • timer_create()
  • timer_getoverrun()
  • timer_gettime()
  • timer_settime()

12.18. <unistd.h>

The following methods and variables in <unistd.h> are supported:

  • alarm()
  • ftruncate()
  • pause()

13. FACE 2.1 Safety Base

This chapter has a subsection per header file to detail the methods provided by RTEMS that are in that header file.

13.1. Summary

The follow table summarizes alignment with the FACE 2.1 Safety Base standard:

Supported 245
ENOSYS 1
Not supported 0

13.2. <arpa/inet.h>

The following methods and variables in <arpa/inet.h> are supported:

  • htonl()
  • htons()
  • inet_ntop()
  • inet_pton()
  • ntohl()
  • ntohs()

13.3. <ctype.h>

The following methods and variables in <ctype.h> are supported:

  • isalnum()
  • isalpha()
  • iscntrl()
  • isdigit()
  • isgraph()
  • islower()
  • isprint()
  • ispunct()
  • isspace()
  • isupper()
  • isxdigit()
  • tolower()
  • toupper()

13.4. <devctl.h>

The following methods and variables in <devctl.h> are supported:

  • posix_devctl()

13.5. <dirent.h>

The following methods and variables in <dirent.h> are supported:

  • closedir()
  • opendir()
  • readdir()
  • readdir_r()
  • rewinddir()

13.6. <errno.h>

The following methods and variables in <errno.h> are supported:

  • errno

13.7. <fcntl.h>

The following methods and variables in <fcntl.h> are supported:

  • creat()
  • open()

13.8. <math.h>

The following methods and variables in <math.h> are supported:

  • acos()
  • acosh()
  • asin()
  • asinh()
  • atan()
  • atan2()
  • atanh()
  • ceil()
  • cos()
  • cosh()
  • exp()
  • fabs()
  • floor()
  • fmod()
  • frexp()
  • isinf()
  • isnan()
  • ldexp()
  • log()
  • log10()
  • modf()
  • pow()
  • sin()
  • sinh()
  • sqrt()
  • tan()
  • tanh()

13.9. <mqueue.h>

The following methods and variables in <mqueue.h> are supported:

  • mq_getattr()
  • mq_notify()
  • mq_open()
  • mq_receive()
  • mq_send()
  • mq_setattr()
  • mq_timedreceive()
  • mq_timedsend()

13.10. <netdb.h>

The following methods and variables in <netdb.h> are supported:

  • freeaddrinfo()
  • getaddrinfo()
  • getnameinfo()

13.11. <pthread.h>

The following methods and variables in <pthread.h> are supported:

  • pthread_attr_destroy()
  • pthread_attr_getinheritsched()
  • pthread_attr_getschedparam()
  • pthread_attr_getschedpolicy()
  • pthread_attr_getscope()
  • pthread_attr_getstack()
  • pthread_attr_getstacksize()
  • pthread_attr_init()
  • pthread_attr_setinheritsched()
  • pthread_attr_setschedparam()
  • pthread_attr_setschedpolicy()
  • pthread_attr_setscope()
  • pthread_attr_setstack()
  • pthread_attr_setstacksize()
  • pthread_cond_broadcast()
  • pthread_cond_destroy()
  • pthread_cond_init()
  • pthread_cond_signal()
  • pthread_cond_timedwait()
  • pthread_cond_wait()
  • pthread_condattr_destroy()
  • pthread_condattr_getclock()
  • pthread_condattr_init()
  • pthread_condattr_setclock()
  • pthread_create()
  • pthread_equal()
  • pthread_getconcurrency()
  • pthread_getschedparam()
  • pthread_getspecific()
  • pthread_key_create()
  • pthread_mutex_init()
  • pthread_mutex_lock()
  • pthread_mutex_timedlock()
  • pthread_mutex_trylock()
  • pthread_mutex_unlock()
  • pthread_mutexattr_destroy()
  • pthread_mutexattr_getprioceiling()
  • pthread_mutexattr_getprotocol()
  • pthread_mutexattr_init()
  • pthread_mutexattr_setprioceiling()
  • pthread_mutexattr_setprotocol()
  • pthread_once()
  • pthread_self()
  • pthread_setconcurrency()
  • pthread_setschedparam()
  • pthread_setschedprio()
  • pthread_setspecific()

The following methods in <pthread.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • pthread_getcpuclockid()

13.12. <sched.h>

The following methods and variables in <sched.h> are supported:

  • sched_get_priority_max()
  • sched_get_priority_min()
  • sched_yield()

13.13. <semaphore.h>

The following methods and variables in <semaphore.h> are supported:

  • sem_close()
  • sem_getvalue()
  • sem_init()
  • sem_open()
  • sem_post()
  • sem_timedwait()
  • sem_trywait()
  • sem_wait()

13.14. <signal.h>

The following methods and variables in <signal.h> are supported:

  • pthread_sigmask()
  • sigaction()
  • sigaddset()
  • sigdelset()
  • sigemptyset()
  • sigfillset()
  • sigismember()
  • sigpending()
  • sigqueue()
  • sigsuspend()
  • sigtimedwait()
  • sigwait()
  • sigwaitinfo()

13.15. <stdio.h>

The following methods and variables in <stdio.h> are supported:

  • clearerr()
  • fclose()
  • feof()
  • ferror()
  • fflush()
  • fgetc()
  • fgets()
  • fileno()
  • fopen()
  • fprintf()
  • fread()
  • freopen()
  • fseek()
  • fseeko()
  • ftell()
  • ftello()
  • fwrite()
  • remove()
  • rename()
  • snprintf()

13.16. <stdlib.h>

The following methods and variables in <stdlib.h> are supported:

  • abs()
  • atof()
  • atoi()
  • atol()
  • calloc()
  • div()
  • labs()
  • ldiv()
  • malloc()
  • rand_r()
  • strtod()
  • strtol()
  • strtoul()

13.17. <string.h>

The following methods and variables in <string.h> are supported:

  • memchr()
  • memcmp()
  • memcpy()
  • memmove()
  • memset()
  • strcat()
  • strchr()
  • strcmp()
  • strcpy()
  • strcspn()
  • strerror_r()
  • strlen()
  • strncat()
  • strncmp()
  • strncpy()
  • strpbrk()
  • strrchr()
  • strspn()
  • strstr()
  • strtok_r()

13.18. <sys/mman.h>

The following methods and variables in <sys/mman.h> are supported:

  • mmap()
  • shm_open()

13.19. <sys/select.h>

The following methods and variables in <sys/select.h> are supported:

  • FD_CLR()
  • FD_ISSET()
  • FD_SET()
  • FD_ZERO()
  • select()

13.20. <sys/socket.h>

The following methods and variables in <sys/socket.h> are supported:

  • bind()
  • connect()
  • getpeername()
  • getsockname()
  • getsockopt()
  • recv()
  • recvfrom()
  • send()
  • sendto()
  • setsockopt()
  • shutdown()
  • socket()

13.21. <sys/stat.h>

The following methods and variables in <sys/stat.h> are supported:

  • fstat()
  • mkdir()
  • stat()
  • umask()

13.22. <time.h>

The following methods and variables in <time.h> are supported:

  • asctime_r()
  • clock_getres()
  • clock_gettime()
  • clock_settime()
  • ctime_r()
  • difftime()
  • gmtime_r()
  • localtime_r()
  • mktime()
  • nanosleep()
  • time()
  • timer_create()
  • timer_getoverrun()
  • timer_gettime()
  • timer_settime()
  • tzname
  • tzset()

13.23. <unistd.h>

The following methods and variables in <unistd.h> are supported:

  • access()
  • alarm()
  • chdir()
  • close()
  • fsync()
  • ftruncate()
  • getcwd()
  • gethostname()
  • link()
  • lseek()
  • pause()
  • read()
  • rmdir()
  • unlink()
  • write()

14. FACE 2.1 Safety Extended

This chapter has a subsection per header file to detail the methods provided by RTEMS that are in that header file.

14.1. Summary

The follow table summarizes alignment with the FACE 2.1 Safety Extended standard:

Supported 315
ENOSYS 11
Not supported 9

14.2. <arpa/inet.h>

The following methods and variables in <arpa/inet.h> are supported:

  • htonl()
  • htons()
  • inet_ntop()
  • inet_pton()
  • ntohl()
  • ntohs()

14.3. <ctype.h>

The following methods and variables in <ctype.h> are supported:

  • isalnum()
  • isalpha()
  • iscntrl()
  • isdigit()
  • isgraph()
  • islower()
  • isprint()
  • ispunct()
  • isspace()
  • isupper()
  • isxdigit()
  • tolower()
  • toupper()

14.4. <devctl.h>

The following methods and variables in <devctl.h> are supported:

  • posix_devctl()

14.5. <dirent.h>

The following methods and variables in <dirent.h> are supported:

  • closedir()
  • opendir()
  • readdir()
  • readdir_r()
  • rewinddir()

14.6. <errno.h>

The following methods and variables in <errno.h> are supported:

  • errno

14.7. <fcntl.h>

The following methods and variables in <fcntl.h> are supported:

  • creat()
  • fcntl()
  • open()

14.8. <math.h>

The following methods and variables in <math.h> are supported:

  • acos()
  • acosh()
  • asin()
  • asinh()
  • atan()
  • atan2()
  • atanh()
  • ceil()
  • cos()
  • cosh()
  • exp()
  • fabs()
  • floor()
  • fmod()
  • frexp()
  • isinf()
  • isnan()
  • ldexp()
  • log()
  • log10()
  • modf()
  • pow()
  • sin()
  • sinh()
  • sqrt()
  • tan()
  • tanh()

14.9. <mqueue.h>

The following methods and variables in <mqueue.h> are supported:

  • mq_getattr()
  • mq_notify()
  • mq_open()
  • mq_receive()
  • mq_send()
  • mq_setattr()
  • mq_timedreceive()
  • mq_timedsend()

14.10. <netdb.h>

The following methods and variables in <netdb.h> are supported:

  • freeaddrinfo()
  • getaddrinfo()
  • getnameinfo()

14.11. <pthread.h>

The following methods and variables in <pthread.h> are supported:

  • pthread_attr_destroy()
  • pthread_attr_getdetachstate()
  • pthread_attr_getguardsize()
  • pthread_attr_getinheritsched()
  • pthread_attr_getschedparam()
  • pthread_attr_getschedpolicy()
  • pthread_attr_getscope()
  • pthread_attr_getstack()
  • pthread_attr_getstacksize()
  • pthread_attr_init()
  • pthread_attr_setdetachstate()
  • pthread_attr_setguardsize()
  • pthread_attr_setinheritsched()
  • pthread_attr_setschedparam()
  • pthread_attr_setschedpolicy()
  • pthread_attr_setscope()
  • pthread_attr_setstack()
  • pthread_attr_setstacksize()
  • pthread_cancel()
  • pthread_cleanup_pop()
  • pthread_cleanup_push()
  • pthread_cond_broadcast()
  • pthread_cond_destroy()
  • pthread_cond_init()
  • pthread_cond_signal()
  • pthread_cond_timedwait()
  • pthread_cond_wait()
  • pthread_condattr_destroy()
  • pthread_condattr_getclock()
  • pthread_condattr_init()
  • pthread_condattr_setclock()
  • pthread_create()
  • pthread_detach()
  • pthread_equal()
  • pthread_exit()
  • pthread_getconcurrency()
  • pthread_getschedparam()
  • pthread_getspecific()
  • pthread_join()
  • pthread_key_create()
  • pthread_key_delete()
  • pthread_mutex_destroy()
  • pthread_mutex_init()
  • pthread_mutex_lock()
  • pthread_mutex_timedlock()
  • pthread_mutex_trylock()
  • pthread_mutex_unlock()
  • pthread_mutexattr_destroy()
  • pthread_mutexattr_getprioceiling()
  • pthread_mutexattr_getprotocol()
  • pthread_mutexattr_init()
  • pthread_mutexattr_setprioceiling()
  • pthread_mutexattr_setprotocol()
  • pthread_once()
  • pthread_self()
  • pthread_setcancelstate()
  • pthread_setcanceltype()
  • pthread_setconcurrency()
  • pthread_setschedparam()
  • pthread_setschedprio()
  • pthread_setspecific()

The following methods in <pthread.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • pthread_atfork()
  • pthread_getcpuclockid()

14.12. <sched.h>

The following methods and variables in <sched.h> are supported:

  • sched_get_priority_max()
  • sched_get_priority_min()
  • sched_rr_get_interval()
  • sched_yield()

The following methods in <sched.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • sched_getparam()
  • sched_getscheduler()
  • sched_setparam()
  • sched_setscheduler()

14.13. <semaphore.h>

The following methods and variables in <semaphore.h> are supported:

  • sem_close()
  • sem_destroy()
  • sem_getvalue()
  • sem_init()
  • sem_open()
  • sem_post()
  • sem_timedwait()
  • sem_trywait()
  • sem_unlink()
  • sem_wait()

14.14. <setjmp.h>

The following methods and variables in <setjmp.h> are supported:

  • siglongjmp()
  • sigsetjmp()

14.15. <signal.h>

The following methods and variables in <signal.h> are supported:

  • kill()
  • pthread_kill()
  • pthread_sigmask()
  • raise()
  • sigaction()
  • sigaddset()
  • sigdelset()
  • sigemptyset()
  • sigfillset()
  • sigismember()
  • sigpending()
  • sigqueue()
  • sigsuspend()
  • sigtimedwait()
  • sigwait()
  • sigwaitinfo()

14.16. <spawn.h>

The following methods and variables in <spawn.h> are not supported:

  • posix_spawn()
  • posix_spawnattr_destroy()
  • posix_spawnattr_getflags()
  • posix_spawnattr_getsigdefault()
  • posix_spawnattr_getsigmask()
  • posix_spawnattr_init()
  • posix_spawnattr_setflags()
  • posix_spawnattr_setsigdefault()
  • posix_spawnattr_setsigmask()

14.17. <stdarg.h>

The following methods and variables in <stdarg.h> are supported:

  • va_arg()
  • va_end()
  • va_start()

14.18. <stdio.h>

The following methods and variables in <stdio.h> are supported:

  • clearerr()
  • fclose()
  • feof()
  • ferror()
  • fflush()
  • fgetc()
  • fgets()
  • fileno()
  • flockfile()
  • fopen()
  • fprintf()
  • fread()
  • freopen()
  • fseek()
  • fseeko()
  • ftell()
  • ftello()
  • ftrylockfile()
  • funlockfile()
  • fwrite()
  • remove()
  • rename()
  • snprintf()
  • sscanf()
  • vfprintf()
  • vsnprintf()

14.19. <stdlib.h>

The following methods and variables in <stdlib.h> are supported:

  • _Exit()
  • abort()
  • abs()
  • atexit()
  • atof()
  • atoi()
  • atol()
  • bsearch()
  • calloc()
  • div()
  • exit()
  • free()
  • getenv()
  • labs()
  • ldiv()
  • malloc()
  • rand_r()
  • realloc()
  • strtod()
  • strtol()
  • strtoul()

14.20. <string.h>

The following methods and variables in <string.h> are supported:

  • memchr()
  • memcmp()
  • memcpy()
  • memmove()
  • memset()
  • strcat()
  • strchr()
  • strcmp()
  • strcpy()
  • strcspn()
  • strerror_r()
  • strlen()
  • strncat()
  • strncmp()
  • strncpy()
  • strpbrk()
  • strrchr()
  • strspn()
  • strstr()
  • strtok_r()

14.21. <sys/mman.h>

The following methods and variables in <sys/mman.h> are supported:

  • mmap()
  • shm_open()

14.22. <sys/select.h>

The following methods and variables in <sys/select.h> are supported:

  • FD_CLR()
  • FD_ISSET()
  • FD_SET()
  • FD_ZERO()
  • select()

14.23. <sys/socket.h>

The following methods and variables in <sys/socket.h> are supported:

  • accept()
  • bind()
  • connect()
  • getpeername()
  • getsockname()
  • getsockopt()
  • listen()
  • recv()
  • recvfrom()
  • send()
  • sendto()
  • setsockopt()
  • shutdown()
  • socket()

14.24. <sys/stat.h>

The following methods and variables in <sys/stat.h> are supported:

  • chmod()
  • fstat()
  • lstat()
  • mkdir()
  • mkfifo()
  • stat()
  • umask()

14.25. <sys/time.h>

The following methods and variables in <sys/time.h> are supported:

  • times()

14.26. <sys/utsname.h>

The following methods and variables in <sys/utsname.h> are supported:

  • uname()

14.27. <sys/wait.h>

The following methods and variables in <sys/wait.h> are supported:

  • waitpid()

14.28. <time.h>

The following methods and variables in <time.h> are supported:

  • asctime_r()
  • clock()
  • clock_getres()
  • clock_gettime()
  • clock_settime()
  • ctime_r()
  • difftime()
  • gmtime_r()
  • localtime_r()
  • mktime()
  • nanosleep()
  • strftime()
  • time()
  • timer_create()
  • timer_delete()
  • timer_getoverrun()
  • timer_gettime()
  • timer_settime()
  • tzname
  • tzset()

14.29. <unistd.h>

The following methods and variables in <unistd.h> are supported:

  • _exit()
  • access()
  • alarm()
  • chdir()
  • chown()
  • close()
  • dup2()
  • environ
  • fsync()
  • ftruncate()
  • getcwd()
  • getegid()
  • geteuid()
  • getgid()
  • getgroups()
  • gethostname()
  • getpgrp()
  • getpid()
  • getppid()
  • getuid()
  • link()
  • lseek()
  • pause()
  • pipe()
  • read()
  • rmdir()
  • setegid()
  • seteuid()
  • setgid()
  • setuid()
  • sleep()
  • sysconf()
  • unlink()
  • write()

The following methods in <unistd.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • execl()
  • execle()
  • execv()
  • execve()
  • fork()

15. FACE 2.1 General Purpose

This chapter has a subsection per header file to detail the methods provided by RTEMS that are in that header file.

15.1. Summary

The follow table summarizes alignment with the FACE 2.1 General Purpose standard:

Supported 752
ENOSYS 14
Not supported 46

15.2. <aio.h>

The following methods and variables in <aio.h> are supported:

  • aio_cancel()
  • aio_error()
  • aio_fsync()
  • aio_read()
  • aio_return()
  • aio_write()

The following methods in <aio.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • aio_suspend()
  • lio_listio()

15.3. <arpa/inet.h>

The following methods and variables in <arpa/inet.h> are supported:

  • htonl()
  • htons()
  • inet_addr()
  • inet_ntoa()
  • inet_ntop()
  • inet_pton()
  • ntohl()
  • ntohs()

15.4. <assert.h>

The following methods and variables in <assert.h> are supported:

  • assert()

15.5. <complex.h>

The following methods and variables in <complex.h> are supported:

  • cabs()
  • cabsf()
  • cabsl()
  • cacos()
  • cacosf()
  • cacosh()
  • cacoshf()
  • cacoshl()
  • cacosl()
  • carg()
  • cargf()
  • cargl()
  • casin()
  • casinf()
  • casinh()
  • casinhf()
  • casinhl()
  • casinl()
  • catan()
  • catanf()
  • catanh()
  • catanhf()
  • catanhl()
  • catanl()
  • ccos()
  • ccosf()
  • ccosh()
  • ccoshf()
  • ccoshl()
  • ccosl()
  • cexp()
  • cexpf()
  • cexpl()
  • cimag()
  • cimagf()
  • cimagl()
  • clog()
  • clogf()
  • clogl()
  • conj()
  • conjf()
  • conjl()
  • cpow()
  • cpowf()
  • cpowl()
  • cproj()
  • cprojf()
  • cprojl()
  • creal()
  • crealf()
  • creall()
  • csin()
  • csinf()
  • csinh()
  • csinhf()
  • csinhl()
  • csinl()
  • csqrt()
  • csqrtf()
  • csqrtl()
  • ctan()
  • ctanf()
  • ctanh()
  • ctanhf()
  • ctanhl()
  • ctanl()

15.6. <ctype.h>

The following methods and variables in <ctype.h> are supported:

  • isalnum()
  • isalpha()
  • isblank()
  • iscntrl()
  • isdigit()
  • isgraph()
  • islower()
  • isprint()
  • ispunct()
  • isspace()
  • isupper()
  • isxdigit()
  • tolower()
  • toupper()

15.7. <devctl.h>

The following methods and variables in <devctl.h> are supported:

  • posix_devctl()

15.8. <dirent.h>

The following methods and variables in <dirent.h> are supported:

  • closedir()
  • opendir()
  • readdir()
  • readdir_r()
  • rewinddir()

15.9. <errno.h>

The following methods and variables in <errno.h> are supported:

  • errno

15.10. <fcntl.h>

The following methods and variables in <fcntl.h> are supported:

  • creat()
  • fcntl()
  • open()

15.11. <fenv.h>

The following methods and variables in <fenv.h> are not supported:

  • feclearexcept()
  • fegetenv()
  • fegetexceptflag()
  • fegetround()
  • feholdexcept()
  • feraiseexcept()
  • fesetenv()
  • fesetexceptflag()
  • fesetround()
  • fetestexcept()
  • feupdateenv()

15.12. <inttypes.h>

The following methods and variables in <inttypes.h> are supported:

  • imaxabs()
  • imaxdiv()
  • strtoimax()
  • strtoumax()
  • wcstoimax()
  • wcstoumax()

15.13. <locale.h>

The following methods and variables in <locale.h> are supported:

  • localeconv()
  • setlocale()

15.14. <math.h>

The following methods and variables in <math.h> are supported:

  • acos()
  • acosf()
  • acosh()
  • acoshf()
  • acoshl()
  • acosl()
  • asin()
  • asinf()
  • asinh()
  • asinhf()
  • asinhl()
  • asinl()
  • atan()
  • atan2()
  • atan2f()
  • atan2l()
  • atanf()
  • atanh()
  • atanhf()
  • atanhl()
  • atanl()
  • cbrt()
  • cbrtf()
  • cbrtl()
  • ceil()
  • ceilf()
  • ceill()
  • copysign()
  • copysignf()
  • copysignl()
  • cos()
  • cosf()
  • cosh()
  • coshf()
  • coshl()
  • cosl()
  • erf()
  • erfc()
  • erfcf()
  • erfcl()
  • erff()
  • erfl()
  • exp()
  • exp2()
  • exp2f()
  • exp2l()
  • expf()
  • expl()
  • expm1()
  • expm1f()
  • expm1l()
  • fabs()
  • fabsf()
  • fabsl()
  • fdim()
  • fdimf()
  • fdiml()
  • floor()
  • floorf()
  • floorl()
  • fma()
  • fmaf()
  • fmal()
  • fmax()
  • fmaxf()
  • fmaxl()
  • fmin()
  • fminf()
  • fminl()
  • fmod()
  • fmodf()
  • fmodl()
  • frexp()
  • frexpf()
  • frexpl()
  • hypot()
  • hypotf()
  • hypotl()
  • ilogb()
  • ilogbf()
  • ilogbl()
  • isinf()
  • isnan()
  • ldexp()
  • ldexpf()
  • ldexpl()
  • lgamma()
  • lgammaf()
  • lgammal()
  • llrint()
  • llrintf()
  • llrintl()
  • llround()
  • llroundf()
  • llroundl()
  • log()
  • log10()
  • log10f()
  • log10l()
  • log1p()
  • log1pf()
  • log1pl()
  • log2()
  • log2f()
  • log2l()
  • logb()
  • logbf()
  • logbl()
  • logf()
  • logl()
  • lrint()
  • lrintf()
  • lrintl()
  • lround()
  • lroundf()
  • lroundl()
  • modf()
  • modff()
  • modfl()
  • nan()
  • nanf()
  • nanl()
  • nearbyint()
  • nearbyintf()
  • nearbyintl()
  • nextafter()
  • nextafterf()
  • nextafterl()
  • nexttoward()
  • nexttowardl()
  • pow()
  • powf()
  • powl()
  • remainder()
  • remainderf()
  • remainderl()
  • remquo()
  • remquof()
  • remquol()
  • rint()
  • rintf()
  • rintl()
  • round()
  • roundf()
  • roundl()
  • scalbln()
  • scalblnf()
  • scalblnl()
  • scalbn()
  • scalbnf()
  • scalbnl()
  • sin()
  • sinf()
  • sinh()
  • sinhf()
  • sinhl()
  • sinl()
  • sqrt()
  • sqrtf()
  • sqrtl()
  • tan()
  • tanf()
  • tanh()
  • tanhf()
  • tanhl()
  • tanl()
  • tgamma()
  • tgammaf()
  • tgammal()
  • trunc()
  • truncf()
  • truncl()

The following methods and variables in <math.h> are not supported:

  • fpclassify()
  • isfinite()
  • isgreater()
  • isgreaterequal()
  • isless()
  • islessequal()
  • islessgreater()
  • isnormal()
  • isunordered()
  • nexttowardf()
  • signbit()

15.15. <mqueue.h>

The following methods and variables in <mqueue.h> are supported:

  • mq_close()
  • mq_getattr()
  • mq_notify()
  • mq_open()
  • mq_receive()
  • mq_send()
  • mq_setattr()
  • mq_timedreceive()
  • mq_timedsend()
  • mq_unlink()

15.16. <net/if.h>

The following methods and variables in <net/if.h> are supported:

  • if_freenameindex()
  • if_indextoname()
  • if_nameindex()
  • if_nametoindex()

15.17. <netdb.h>

The following methods and variables in <netdb.h> are supported:

  • endhostent()
  • endnetent()
  • endprotoent()
  • endservent()
  • freeaddrinfo()
  • gai_strerror()
  • getaddrinfo()
  • gethostent()
  • getnameinfo()
  • getnetbyaddr()
  • getnetbyname()
  • getnetent()
  • getprotobyname()
  • getprotobynumber()
  • getprotoent()
  • getservbyname()
  • getservbyport()
  • getservent()
  • sethostent()
  • setnetent()
  • setprotoent()
  • setservent()

15.18. <pthread.h>

The following methods and variables in <pthread.h> are supported:

  • pthread_attr_destroy()
  • pthread_attr_getdetachstate()
  • pthread_attr_getguardsize()
  • pthread_attr_getinheritsched()
  • pthread_attr_getschedparam()
  • pthread_attr_getschedpolicy()
  • pthread_attr_getscope()
  • pthread_attr_getstack()
  • pthread_attr_getstacksize()
  • pthread_attr_init()
  • pthread_attr_setdetachstate()
  • pthread_attr_setguardsize()
  • pthread_attr_setinheritsched()
  • pthread_attr_setschedparam()
  • pthread_attr_setschedpolicy()
  • pthread_attr_setscope()
  • pthread_attr_setstack()
  • pthread_attr_setstacksize()
  • pthread_barrier_destroy()
  • pthread_barrier_init()
  • pthread_barrier_wait()
  • pthread_barrierattr_destroy()
  • pthread_barrierattr_init()
  • pthread_cancel()
  • pthread_cleanup_pop()
  • pthread_cleanup_push()
  • pthread_cond_broadcast()
  • pthread_cond_destroy()
  • pthread_cond_init()
  • pthread_cond_signal()
  • pthread_cond_timedwait()
  • pthread_cond_wait()
  • pthread_condattr_destroy()
  • pthread_condattr_getclock()
  • pthread_condattr_getpshared()
  • pthread_condattr_init()
  • pthread_condattr_setclock()
  • pthread_condattr_setpshared()
  • pthread_create()
  • pthread_detach()
  • pthread_equal()
  • pthread_exit()
  • pthread_getconcurrency()
  • pthread_getschedparam()
  • pthread_getspecific()
  • pthread_join()
  • pthread_key_create()
  • pthread_key_delete()
  • pthread_mutex_destroy()
  • pthread_mutex_getprioceiling()
  • pthread_mutex_init()
  • pthread_mutex_lock()
  • pthread_mutex_setprioceiling()
  • pthread_mutex_timedlock()
  • pthread_mutex_trylock()
  • pthread_mutex_unlock()
  • pthread_mutexattr_destroy()
  • pthread_mutexattr_getprioceiling()
  • pthread_mutexattr_getprotocol()
  • pthread_mutexattr_getpshared()
  • pthread_mutexattr_gettype()
  • pthread_mutexattr_init()
  • pthread_mutexattr_setprioceiling()
  • pthread_mutexattr_setprotocol()
  • pthread_mutexattr_setpshared()
  • pthread_mutexattr_settype()
  • pthread_once()
  • pthread_rwlock_destroy()
  • pthread_rwlock_init()
  • pthread_rwlock_rdlock()
  • pthread_rwlock_timedrdlock()
  • pthread_rwlock_timedwrlock()
  • pthread_rwlock_tryrdlock()
  • pthread_rwlock_trywrlock()
  • pthread_rwlock_unlock()
  • pthread_rwlock_wrlock()
  • pthread_rwlockattr_destroy()
  • pthread_rwlockattr_init()
  • pthread_self()
  • pthread_setcancelstate()
  • pthread_setcanceltype()
  • pthread_setconcurrency()
  • pthread_setschedparam()
  • pthread_setschedprio()
  • pthread_setspecific()
  • pthread_testcancel()

The following methods in <pthread.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • pthread_atfork()
  • pthread_getcpuclockid()

15.19. <sched.h>

The following methods and variables in <sched.h> are supported:

  • sched_get_priority_max()
  • sched_get_priority_min()
  • sched_rr_get_interval()
  • sched_yield()

The following methods in <sched.h> are implemented as stubs returning -1 and setting errno to ENOSYS:

  • sched_getparam()
  • sched_getscheduler()
  • sched_setparam()
  • sched_setscheduler()

15.20. <semaphore.h>

The following methods and variables in <semaphore.h> are supported:

  • sem_close()
  • sem_destroy()
  • sem_getvalue()
  • sem_init()
  • sem_open()
  • sem_post()
  • sem_timedwait()
  • sem_trywait()
  • sem_unlink()
  • sem_wait()

15.21. <setjmp.h>

The following methods and variables in <setjmp.h> are supported:

  • longjmp()
  • setjmp()
  • siglongjmp()
  • sigsetjmp()

15.22. <signal.h>

The following methods and variables in <signal.h> are supported:

  • kill()
  • pthread_kill()
  • pthread_sigmask()
  • raise()
  • sigaction()
  • sigaddset()
  • sigdelset()
  • sigemptyset()
  • sigfillset()
  • sigismember()
  • signal()
  • sigpending()
  • sigprocmask()
  • sigqueue()
  • sigsuspend()
  • sigtimedwait()
  • sigwait()
  • sigwaitinfo()

15.23. <spawn.h>

The following methods and variables in <spawn.h> are not supported:

  • posix_spawn()
  • posix_spawn_file_actions_addclose()
  • posix_spawn_file_actions_adddup2()
  • posix_spawn_file_actions_addopen()
  • posix_spawn_file_actions_destroy()
  • posix_spawn_file_actions_init()
  • posix_spawnattr_destroy()
  • posix_spawnattr_getflags()
  • posix_spawnattr_getpgroup()
  • posix_spawnattr_getschedparam()
  • posix_spawnattr_getschedpolicy()
  • posix_spawnattr_getsigdefault()
  • posix_spawnattr_getsigmask()
  • posix_spawnattr_init()
  • posix_spawnattr_setflags()
  • posix_spawnattr_setpgroup()
  • posix_spawnattr_setschedparam()
  • posix_spawnattr_setschedpolicy()
  • posix_spawnattr_setsigdefault()
  • posix_spawnattr_setsigmask()
  • posix_spawnp()

15.24. <stdarg.h>

The following methods and variables in <stdarg.h> are supported:

  • va_arg()
  • va_copy()
  • va_end()
  • va_start()

15.25. <stdio.h>

The following methods and variables in <stdio.h> are supported:

  • clearerr()
  • fclose()
  • fdopen()
  • feof()
  • ferror()
  • fflush()
  • fgetc()
  • fgetpos()
  • fgets()
  • fileno()
  • flockfile()
  • fopen()
  • fprintf()
  • fputc()
  • fputs()
  • fread()
  • freopen()
  • fscanf()
  • fseek()
  • fseeko()
  • fsetpos()
  • ftell()
  • ftello()
  • ftrylockfile()
  • funlockfile()
  • fwrite()
  • getc()
  • getc_unlocked()
  • getchar()
  • getchar_unlocked()
  • perror()
  • printf()
  • putc()
  • putc_unlocked()
  • putchar()
  • putchar_unlocked()
  • puts()
  • remove()
  • rename()
  • rewind()
  • scanf()
  • setbuf()
  • setvbuf()
  • snprintf()
  • sprintf()
  • sscanf()
  • stderr
  • stdin
  • stdout
  • tmpfile()
  • ungetc()
  • vfprintf()
  • vfscanf()
  • vprintf()
  • vscanf()
  • vsnprintf()
  • vsprintf()
  • vsscanf()

15.26. <stdlib.h>

The following methods and variables in <stdlib.h> are supported:

  • _Exit()
  • abort()
  • abs()
  • atexit()
  • atof()
  • atoi()
  • atol()
  • atoll()
  • bsearch()
  • calloc()
  • div()
  • exit()
  • free()
  • getenv()
  • labs()
  • ldiv()
  • llabs()
  • lldiv()
  • malloc()
  • mblen()
  • mbstowcs()
  • mbtowc()
  • qsort()
  • rand()
  • rand_r()
  • realloc()
  • setenv()
  • srand()
  • strtod()
  • strtof()
  • strtol()
  • strtold()
  • strtoll()
  • strtoul()
  • strtoull()
  • unsetenv()
  • wcstombs()
  • wctomb()

15.27. <string.h>

The following methods and variables in <string.h> are supported:

  • memchr()
  • memcmp()
  • memcpy()
  • memmove()
  • memset()
  • strcat()
  • strchr()
  • strcmp()
  • strcoll()
  • strcpy()
  • strcspn()
  • strerror()
  • strerror_r()
  • strlen()
  • strncat()
  • strncmp()
  • strncpy()
  • strpbrk()
  • strrchr()
  • strspn()
  • strstr()
  • strtok()
  • strtok_r()
  • strxfrm()

15.28. <sys/mman.h>

The following methods and variables in <sys/mman.h> are supported:

  • mlock()
  • mlockall()
  • mmap()
  • mprotect()
  • msync()
  • munlock()
  • munlockall()
  • munmap()
  • shm_open()
  • shm_unlink()

15.29. <sys/select.h>

The following methods and variables in <sys/select.h> are supported:

  • FD_CLR()
  • FD_ISSET()
  • FD_SET()
  • FD_ZERO()
  • select()

The following methods and variables in <sys/select.h> are not supported:

  • pselect()

15.30. <sys/socket.h>

The following methods and variables in <sys/socket.h> are supported:

  • accept()
  • bind()
  • connect()
  • getpeername()
  • getsockname()
  • getsockopt()
  • listen()
  • recv()
  • recvfrom()
  • recvmsg()
  • send()
  • sendmsg()
  • sendto()
  • setsockopt()
  • shutdown()
  • socket()
  • socketpair()

The following methods and variables in <sys/socket.h> are not supported:

  • sockatmark()

15.31. <sys/stat.h>

The following methods and variables in <sys/stat.h> are supported:

  • chmod()
  • fchmod()
  • fstat()
  • lstat()
  • mkdir()
  • mkfifo()
  • stat()
  • umask()

15.32. <sys/time.h>

The following methods and variables in <sys/time.h> are supported:

  • times()

15.33. <sys/utsname.h>

The following methods and variables in <sys/utsname.h> are supported:

  • uname()

15.34. <sys/wait.h>

The following methods and variables in <sys/wait.h> are supported:

  • wait()
  • waitpid()

15.35. <time.h>

The following methods and variables in <time.h> are supported:

  • asctime_r()
  • clock()
  • clock_getres()
  • clock_gettime()
  • clock_nanosleep()
  • clock_settime()
  • ctime_r()
  • difftime()
  • gmtime()