sys_accept4 746 arch/arm64/include/asm/unistd32.h __SYSCALL(__NR_accept4, sys_accept4) sys_accept4 905 include/linux/syscalls.h asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int); sys_accept4 693 include/uapi/asm-generic/unistd.h __SYSCALL(__NR_accept4, sys_accept4) sys_accept4 693 tools/include/uapi/asm-generic/unistd.h __SYSCALL(__NR_accept4, sys_accept4)