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  • Masahiro Yamada's avatar
    kbuild: skip install/check of headers right under uapi directories · 05d8cba4
    Masahiro Yamada authored
    Since commit 61562f98 ("uapi: export all arch specifics
    directories"), "make INSTALL_HDR_PATH=$root/usr headers_install"
    deletes standard glibc headers and others in $(root)/usr/include.
    
    The cause of the issue is that headers_install now starts descending
    from arch/$(hdr-arch)/include/uapi with $(root)/usr/include for its
    destination when installing asm headers.  So, headers already there
    are assumed to be unwanted.
    
    When headers_install starts descending from include/uapi with
    $(root)/usr/include for its destination, it works around the problem
    by creating an dummy destination $(root)/usr/include/uapi, but this
    is tricky.
    
    To fix the problem in a clean way is to skip headers install/check
    in include/uapi and arch/$(hdr-arch)/include/uapi because we know
    there are only sub-directories in uapi directories.  A good side
    effect is the empty destination $(root)/usr/include/uapi will go
    away.
    
    I am also removing the trailing slash in the headers_check target to
    skip checking in arch/$(hdr-arch)/include/uapi.
    
    Fixes: 61562f98
    
     ("uapi: export all arch specifics directories")
    Reported-by: default avatarDan Williams <dan.j.williams@intel.com>
    Signed-off-by: Masahiro Yamada's avatarMasahiro Yamada <yamada.masahiro@socionext.com>
    Tested-by: default avatarDan Williams <dan.j.williams@intel.com>
    Acked-by: default avatarNicolas Dichtel <nicolas.dichtel@6wind.com>
    05d8cba4