Google

Edit File: syscall.h

/* Copyright (C) 1995-2021 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <https://www.gnu.org/licenses/>.  */

#ifndef _SYSCALL_H
#define _SYSCALL_H	1

/* This file should list the numbers of the system calls the system knows.
   But instead of duplicating this we use the information available
   from the kernel sources.  */
#include <asm/unistd.h>

/* The Linux kernel header file defines macros __NR_*, but some
   programs expect the traditional form SYS_*.  <bits/syscall.h>
   defines SYS_* macros for __NR_* macros of known names.  */
#include <bits/syscall.h>

#endif