• Masahiro Yamada's avatar
    kbuild: remove head-y syntax · ce697cce
    Masahiro Yamada authored
    Kbuild puts the objects listed in head-y at the head of vmlinux.
    Conventionally, we do this for head*.S, which contains the kernel entry
    point.
    
    A counter approach is to control the section order by the linker script.
    Actually, the code marked as __HEAD goes into the ".head.text" section,
    which is placed before the normal ".text" section.
    
    I do not know if both of them are needed. From the build system
    perspective, head-y is not mandatory. If you can achieve the proper code
    placement by the linker script only, it would be cleaner.
    
    I collected the current head-y objects into head-object-list.txt. It is
    a whitelist. My hope is it will be reduced in the long run.
    Signed-off-by: default avatarMasahiro Yamada <masahiroy@kernel.org>
    Tested-by: default avatarNick Desaulniers <ndesaulniers@google.com>
    Reviewed-by: default avatarNicolas Schier <nicolas@fjasle.eu>
    ce697cce
Makefile 1.49 KB