linux-kernel - Re: build fix for x86

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: <46A10D12.5000903@zytor.com>
Date:	Fri, 20 Jul 2007 12:29:22 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Andi Kleen <ak@...e.de>
CC:	Andreas Schwab <schwab@...e.de>,
	"Luck, Tony" <tony.luck@...el.com>,
	Randy Dunlap <randy.dunlap@...cle.com>,
	Arthur Jones <arthur.jones@...gic.com>,
	Vasily Tarasov <vtaras@...nvz.org>,
	linux-kernel@...r.kernel.org, Jan Kara <jack@....cz>,
	linux-arch@...r.kernel.org
Subject: Re: build fix for x86_64...

Andi Kleen wrote:
>> Obviously, this is not a panacea; if the original "struct foo" has also
>> been introduced on 64 bits before the bug is caught, 
> 
> That's usually the case. There is already an established 64bit ABI
> 

This is true.

Kind of makes me wonder if the right thing is to introduce an
"interface" 64-bit type, call it __iu64 (__is64) defined as:

typedef __u64 __attribute__((aligned(8))) __iu64;
typedef __s64 __attribute__((aligned(8))) __is64;

... and encourage people to use it when creating new interfaces.

Don't know if that would do any good.

	-hpa
-
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/