linux-kernel - Re: [PATCH] x86/asm: avoid mnemonics without type suffix

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 for Android: free password hash cracker in your pocket

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

Message-ID: <20130714211446.GP5643@tassilo.jf.intel.com>
Date:	Sun, 14 Jul 2013 14:14:46 -0700
From:	Andi Kleen <ak@...ux.jf.intel.com>
To:	Jeremy Fitzhardinge <jeremy@...p.org>
Cc:	Ramkumar Ramachandra <artagnon@...il.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Ingo Molnar <mingo@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Eli Friedman <eli.friedman@...il.com>,
	Jim Grosbach <grosbach@...le.com>,
	Stephen Checkoway <s@...tak.org>, LLVMdev <llvmdev@...uiuc.edu>
Subject: Re: [PATCH] x86/asm: avoid mnemonics without type suffix


I think best would be to just find some way to implement LOCK prefix
patching using atomic compiler intrinsics and then switch to those

Then all this inline assembler horror could be ifdef'ed away 
for old compilers only, and likely the generated code would
be better as the compiler could optimize more.

Or just give up on LOCK patching, as single CPU systems
and VMs are less and less interesting?

-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/