Re-Entrance System calls
_exit abort access alarm cfgetispeed cfgetospeed cfsetispeed
cfsetospeed chdir chmod chown close creat dup dup2 execle execve exit
fcntl fork fstat getegid geteuid getgid getgroups getpgrp getpid
getppid getuid kill link longjmp lseek mkdir mkfifo open pathconf
pause pipe read rename rmdir setgid setpgid setsid setuid sigaction
sigaddset sigdelset sigemptyset sigfillset sigismember signal
sigpending sigprocmask sigsuspend sleep stat sysconf tcdrain tcflow
tcflush tcgetattr tcgetpgrp tcsendbreak tcsetattr tcsetpgrp time times
umask uname unlink utime wait waitpid write