* nm-hppab.h (KERNEL_U_ADDR): Define.

    * nm-hppab.h (KERNEL_U_ADDR): Define.
        (FIVE_ARG_PTRACE): Likewise.
        (CANNOT_STORE_REGISTER): Likewise.
        * nm-hppah.h (KERNEL_U_ADDR): Define.
        (FIVE_ARG_PTRACE): Likewise.
        (CANNOT_STORE_REGISTER): Likewise.
        (NEED_TEXT_START_END): Likewise.

        * tm-hppah.h (NEED_TEXT_START_END): Delete definition.
        * xm-hppah.h (KERNEL_U_ADDR): Delete definition.
        (FIVE_ARG_PTRACE): Likewise.
        * xm-hppab.h (KERNEL_U_ADDR): Delete definition.
        (FIVE_ARG_PTRACE): Likewise.

        * hppa-tdep.c (read_unwind_info): Make static.
        (restore_pc_queue): Indirect through the target vector to
        reload the register state.