sys_readlinkat 678 arch/arm64/include/asm/unistd32.h __SYSCALL(__NR_readlinkat, sys_readlinkat) sys_readlinkat 511 include/linux/syscalls.h asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf, sys_readlinkat 248 include/uapi/asm-generic/unistd.h __SYSCALL(__NR_readlinkat, sys_readlinkat) sys_readlinkat 248 tools/include/uapi/asm-generic/unistd.h __SYSCALL(__NR_readlinkat, sys_readlinkat)