linux-kernel - Re: [PATCH 46/74] x86, lto: Disable fancy hweight optimizations for LTO

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]

Date:	Mon, 20 Aug 2012 04:18:38 -0700
From:	Andi Kleen <ak@...ux.intel.com>
To:	Jan Beulich <JBeulich@...e.com>
Cc:	Andi Kleen <andi@...stfloor.org>, x86@...nel.org,
	akpm@...ux-foundation.org, mmarek@...e.cz,
	linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 46/74] x86, lto: Disable fancy hweight optimizations for
 LTO

> That's not the point: The point really is that you could allow the
> alternative regardless of LTO, and just penalize the LTO case
> by having even the asm clobber the registers that a function call
> would not preserve.

That's just what a normal call does, right?

-Andi
-- 
ak@...ux.intel.com -- Speaking for myself only
--
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/