linux-kernel - Re: [PATCH v2] kbuild: remove sed command from cmd_ar

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAK7LNATxxvBeooj6t1cPYafS7gd9gNX8YOFghvTbbkusFoQ3pA@mail.gmail.com>
Date:   Wed, 15 Jun 2022 12:03:21 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     Nick Desaulniers <ndesaulniers@...gle.com>
Cc:     Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        Michal Marek <michal.lkml@...kovi.net>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] kbuild: remove sed command from cmd_ar_builtin

On Wed, Jun 15, 2022 at 3:59 AM Nick Desaulniers
<ndesaulniers@...gle.com> wrote:
>
> On Mon, Jun 13, 2022 at 10:53 PM Masahiro Yamada <masahiroy@...nel.org> wrote:
> >
> > Replace a pipeline of echo and sed with printf to decrease process forks.
>
> If you're trying to minimize process forks, is it possible to remove
> the use of xargs as well and just invoke $(AR) with the parameters
> splatted out? I don't know myself, but maybe you're creative enough?


If I remove xargs, we will go back to the situation
before cd968b97c49214e6557381bddddacbd0e0fb696e.

This patch tries to avoid "too long argument error"
without forking too many processes.
Maybe I am too worried about the potential issue, though...






-- 
Best Regards
Masahiro Yamada