linux-kernel - Re: [PATCH 0/3] build system: section garbage collection for vmlinux

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: <20070905192719.GH16016@stusta.de>
Date:	Wed, 5 Sep 2007 21:27:19 +0200
From:	Adrian Bunk <bunk@...nel.org>
To:	Denys Vlasenko <vda.linux@...glemail.com>
Cc:	sam@...nborg.org, kai@...maschewski.name,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/3] build system: section garbage collection for
	vmlinux

On Wed, Sep 05, 2007 at 02:43:21PM +0100, Denys Vlasenko wrote:

> Build system: section garbage collection for vmlinux
> 
> Newer gcc and binutils can do dead code and data removal
> at link time. It is achieved using combination of
> -ffunction-sections -fdata-sections options for gcc and
> --gc-sections for ld.
>...

In the long term I'd like us to be able to compile the whole (or at 
least most of) the kernel with one "-combine -fwhole-program" gcc call 
which should bring the same positive effect plus enables gcc to do 
additional optimizations.

That's meant as a remark, not against your patch (which is for a lower 
hanging fruit).

> vda

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/