/usr/x86_64-linux-gnu/i686-linux-android/include/sys/ is in gcc-i686-linux-android 3.
This file is owned by root:root, with mode 0o755.
..
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/_errdefs.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/_sigdefs.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/_system_properties.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/_types.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/atomics.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/auxv.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/cachectl.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/capability.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/cdefs.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/cdefs_elf.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/dirent.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/endian.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/epoll.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/errno.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/eventfd.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/exec_elf.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/file.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/fsuid.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/glibc-syscalls.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/inotify.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/ioctl.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/ioctl_compat.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/ipc.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/klog.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/limits.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/mman.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/mount.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/param.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/personality.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/poll.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/prctl.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/procfs.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/ptrace.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/queue.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/reboot.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/resource.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/select.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/sendfile.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/sha1.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/signal.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/signalfd.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/socket.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/socketcalls.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/stat.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/statfs.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/statvfs.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/swap.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/syscall.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/sysconf.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/sysinfo.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/syslimits.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/sysmacros.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/system_properties.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/time.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/timeb.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/timerfd.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/times.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/ttychars.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/ttydefaults.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/ttydev.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/types.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/uio.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/un.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/utime.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/utsname.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/vfs.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/vt.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/wait.h
/usr/x86_64-linux-gnu/i686-linux-android/include/sys/xattr.h