linux-kernel - Re: [Bug 8501] udivdi3 absence with gcc-4.3.0 on kernels 2.6.20.11 & 2.6.22.-rc1

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: <alpine.LFD.0.98.0705181613530.3890@woody.linux-foundation.org>
Date:	Fri, 18 May 2007 16:15:11 -0700 (PDT)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Andrew Morton <akpm@...ux-foundation.org>
cc:	Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...e.hu>,
	"bugme-daemon@...nel-bugs.osdl.org" 
	<bugme-daemon@...zilla.kernel.org>, linux-kernel@...r.kernel.org,
	malitzke@...ronets.com
Subject: Re: [Bug 8501] udivdi3  absence with gcc-4.3.0 on kernels 2.6.20.11
 & 2.6.22.-rc1



On Fri, 18 May 2007, Andrew Morton wrote:
> 
> gcc-4.3 appears to have cunningly converted this:

Very cunning indeed.

Considerign that gcc converted straightforward and simple code to a total 
disaster with a 64-bit divide, I'd call it a gcc bug.

> into a divide-by-1000000000 operation, so it emits a call to udivdi3 and we
> don't link.

I think the proper fix is to just tell people that version of gcc is 
broken.

		Linus
-
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/