#define SYS_NOOP 0
#define SYS_OPEN 1
#define SYS_CLOSE 2
#define SYS_LSEEK 3
#define SYS_READ 4
#define SYS_WRITE 5
#define SYS_MMAP 6
#define SYS_MUNMAP 7
#define SYS_EXIT 8

#define NR_SYSCALLS (SYS_EXIT + 1)