linux-kernel - Re: [RFCv2 PATCH 2/3] kbuild: Link with generated build-salt header

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Date:   Mon, 7 May 2018 15:38:03 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     Laura Abbott <labbott@...hat.com>
Cc:     Andy Lutomirski <luto@...nel.org>, mjw@...oraproject.org,
        "H . J . Lu" <hjl.tools@...il.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        X86 ML <x86@...nel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Nick Clifton <nickc@...hat.com>,
        Cary Coutant <ccoutant@...il.com>,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>
Subject: Re: [RFCv2 PATCH 2/3] kbuild: Link with generated build-salt header

2018-03-30 3:01 GMT+09:00 Laura Abbott <labbott@...hat.com>:

> diff --git a/scripts/build-salt.lds.S b/scripts/build-salt.lds.S
> new file mode 100644
> index 000000000000..f85981f1187e
> --- /dev/null
> +++ b/scripts/build-salt.lds.S
> @@ -0,0 +1,5 @@
> +#include <generated/build-salt.h>
> +
> +SECTIONS {
> +       BUILD_ID_SALT
> +}


Do you need this just for wrapping <generate/build-salt.h> ?


How about generating scripts/build-salt.lds
directly by scripts/gensalt ?

<generated/build-salt.h> is unneeded, then
"some sporadic failures about missing the generated header"
will be solved.



I think something like follows will be simpler and better.


always := $(hostprogs-y) $(hostprogs-m) build-salt.lds

define filechk_build-salt.lds
        ($(CONFIG_SHELL) $(srctree)/scripts/gensalt $(CONFIG_BUILD_ID_SALT))
endef

$(obj)/build-salt.lds: $(src)/gensalt FORCE
        $(call filechk,build-salt.lds)




-- 
Best Regards
Masahiro Yamada