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From: george anzinger <george@mvista.com>
To: Linus Torvalds <torvalds@transmeta.com>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: 64-bit jiffies, a better solution
Date: Fri, 10 May 2002 15:36:12 -0700	[thread overview]
Message-ID: <3CDC4B5C.C3DB2533@mvista.com> (raw)
In-Reply-To: <Pine.LNX.4.33.0205101451120.22516-100000@penguin.transmeta.com>

Linus Torvalds wrote:
> 
> On Fri, 10 May 2002, george anzinger wrote:
> >
> > should work.  So here is a solution that does all the above and does
> > NOT invade new name spaces:
> 
> Ok, looks fine, but I'd really rather move the "jiffies" linker games
> into the per-architecture stuff, and get rid of the jiffies_at_jiffies_64
> games.
> 
> It's just one line per architecture, after all.
> 
>                 Linus
If that were only true.  The problem is that some architectures can be
built with either endian.  Mips, for example, seems to take the endian
stuff in as an environment variable.  The linker seems to know this
stuff, but does not provide the "built in" to allow it to be used.

The info is available from the header files at compile time, but I could
not find a clean way to export it to the Makefile, where we might choose
which linker script to use.  I suppose we could run the linker script
thru cpp if all else fails.  Any ideas?
-- 
George Anzinger   george@mvista.com
High-res-timers:  http://sourceforge.net/projects/high-res-timers/
Real time sched:  http://sourceforge.net/projects/rtsched/
Preemption patch: http://www.kernel.org/pub/linux/kernel/people/rml

  reply	other threads:[~2002-05-10 22:36 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-10-22 15:12 How should we do a 64-bit jiffies? george anzinger
2001-10-23  5:10 ` Keith Owens
2001-10-23  6:05   ` Brian Gerst
2001-10-23  6:23     ` Keith Owens
2001-10-23  8:03   ` george anzinger
2001-10-23 15:45     ` Linus Torvalds
2001-10-26 20:59       ` george anzinger
     [not found]     ` <200110231545.f9NFjgg01377@penguin.transmeta.com>
2002-05-10 21:35       ` 64-bit jiffies, a better solution george anzinger
2002-05-10 21:52         ` Linus Torvalds
2002-05-10 22:36           ` george anzinger [this message]
2002-05-10 22:40             ` Linus Torvalds
2002-05-11  0:42               ` 64-bit jiffies, a better solution take 2 george anzinger
2002-05-11  8:29                 ` Russell King
2002-05-11 15:01                   ` george anzinger
2002-05-11 16:10                     ` Russell King
2002-05-11 17:31                       ` george anzinger
2002-05-11 17:37                         ` Linus Torvalds
2002-05-11 18:11                           ` Russell King
2002-05-11 23:38                             ` Keith Owens
2002-05-12  0:01                               ` Russell King
2002-05-12  0:31                                 ` Keith Owens
2002-05-12  8:12                                   ` george anzinger
     [not found]                             ` <3CDD6DA1.7B259EF1@mvista.com>
     [not found]                               ` <20020511201748.G1574@flint.arm.linux.org.uk>
2002-05-12  8:03                                 ` 64-bit jiffies, a better solution take 2 (Fix ARM) george anzinger
2002-05-11 16:41                     ` 64-bit jiffies, a better solution take 2 Daniel Jacobowitz
2002-05-13 11:09             ` 64-bit jiffies, a better solution Maciej W. Rozycki
  -- strict thread matches above, loose matches on Subject: below --
2002-05-11  4:19 Jim Houston
2002-05-11  6:58 ` george anzinger

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