linux-kernel - Re: [PATCH 1/2] kbuild: remove top-level built-in.a

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Message-Id: <1547536378.afs6amsrzj.astroid@bobo.none>
Date:   Tue, 15 Jan 2019 17:15:39 +1000
From:   Nicholas Piggin <npiggin@...il.com>
To:     linux-kbuild@...r.kernel.org,
        Masahiro Yamada <yamada.masahiro@...ionext.com>
Cc:     linux-kernel@...r.kernel.org,
        Stephen Rothwell <sfr@...b.auug.org.au>
Subject: Re: [PATCH 1/2] kbuild: remove top-level built-in.a

Masahiro Yamada's on January 14, 2019 1:27 pm:
> The symbol table in the final archive is unneeded because it is passed
> to the linker after the --whole-archive option. Every object file in
> the archive is included in the link anyway.
> 
> Pass thin archives from subdirectories directly to the linker, and
> remove the final archiving step.

This seems like a good improvement. As far as I remember, it was slower 
to do the final link without the index built. Maybe I was testing it 
in a revision before moving those files into --whole-archive? If there
is no slowdown, then I have no objection.

Acked-by: Nicholas Piggin <npiggin@...il.com>