linux-kernel - Re: RFD: x32 ABI system call numbers

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Message-ID: <CA+55aFwVJ71=cLsUqMaJ-eGP0doPGBhrse9r++hkbiNYNx5Zjg@mail.gmail.com>
Date:	Wed, 31 Aug 2011 09:48:35 -0700
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	"H. Peter Anvin" <hpa@...or.com>,
	Christoph Hellwig <hch@...radead.org>,
	LKML <linux-kernel@...r.kernel.org>,
	"H.J. Lu" <hjl.tools@...il.com>, Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	Richard Kuo <rkuo@...eaurora.org>,
	Mark Salter <msalter@...hat.com>,
	Jonas Bonn <jonas@...thpole.se>,
	Tobias Klauser <tklauser@...tanz.ch>
Subject: Re: RFD: x32 ABI system call numbers

On Wed, Aug 31, 2011 at 9:39 AM, Arnd Bergmann <arnd@...db.de> wrote:
>
> Well, we could chicken out and just use unsigned int for time_t on new
> 32 bit ABIs, which would buy us time until ~2106 before we need to
> convert everything to 64 bit...

You do realize that there are probably quite a lot of programs that
depend on signed time_t because they really do care about dates before
1970?

"unsigned time_t" is not going to really solve anything. It can be a
crutch for some cases, but seriously, the only solution is to just
admit that a 32-bit time_t just doesn't work.

                Linus
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