• Masahiro Yamada's avatar
    kbuild: add real-prereqs shorthand for $(filter-out FORCE,$^) · afa974b7
    Masahiro Yamada authored
    In Kbuild, if_changed and friends must have FORCE as a prerequisite.
    
    Hence, $(filter-out FORCE,$^) or $(filter-out $(PHONY),$^) is a common
    idiom to get the names of all the prerequisites except phony targets.
    
    Add real-prereqs as a shorthand.
    
    Note:
    We cannot replace $(filter %.o,$^) in cmd_link_multi-m because $^ may
    include auto-generated dependencies from the .*.cmd file when a single
    object module is changed into a multi object module. Refer to commit
    69ea912f ("kbuild: remove unneeded link_multi_deps"). I added some
    comment to avoid accidental breakage.
    Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
    Acked-by: default avatarRob Herring <robh@kernel.org>
    afa974b7
Makefile 2.17 KB