ref: 1f5844e2974f89a6f8b78f14aaa026a174f3ef44
dir: /libc/src/syscall.h/
/* See LICENSE file for copyright and license details. */ extern void *_brk(void *addr); extern int _open(char *path, int flags, int perm); extern int _close(int fd); extern int _read(int fd, void *buf, size_t n); extern int _write(int fd, void *buf, size_t n); extern int _lseek(int fd, long off, int whence); extern void _Exit(int status); extern int raise(int sig); extern void (*signal(int sig, void (*func)(int)))(int);