github.com/afumu/libc@v0.0.6/musl/src/linux/copy_file_range.c (about)

     1  #define _GNU_SOURCE
     2  #include <unistd.h>
     3  #include "syscall.h"
     4  
     5  ssize_t copy_file_range(int fd_in, off_t *off_in, int fd_out, off_t *off_out, size_t len, unsigned flags)
     6  {
     7  	return syscall(SYS_copy_file_range, fd_in, off_in, fd_out, off_out, len, flags);
     8  }