/usr/lib/klibc/include/arch/sparc/ is in libklibc-dev 2.0.4-2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/klibc/include/arch/sparc/klibc/
/usr/lib/klibc/include/arch/sparc/klibc/archconfig.h
/usr/lib/klibc/include/arch/sparc/klibc/archsetjmp.h
/usr/lib/klibc/include/arch/sparc/klibc/archsignal.h
/usr/lib/klibc/include/arch/sparc/klibc/archstat.h
/usr/lib/klibc/include/arch/sparc/machine/
/usr/lib/klibc/include/arch/sparc/machine/asm.h
/usr/lib/klibc/include/arch/sparc/machine/frame.h
/usr/lib/klibc/include/arch/sparc/machine/trap.h
/usr/lib/klibc/include/arch/sparc64/klibc/
/usr/lib/klibc/include/arch/sparc64/klibc/archconfig.h
/usr/lib/klibc/include/arch/sparc64/klibc/archsetjmp.h
/usr/lib/klibc/include/arch/sparc64/klibc/archsignal.h
/usr/lib/klibc/include/arch/sparc64/klibc/archstat.h