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From: Scott Wood <scottwood@freescale.com>
To: David Miller <davem@davemloft.net>
Cc: linuxppc-dev@ozlabs.org
Subject: Re: [PATCH] [POWERPC] Fix kernel builds with newer gcc versions and -Os
Date: Fri, 02 May 2008 17:16:07 -0500	[thread overview]
Message-ID: <481B92A7.3070302@freescale.com> (raw)
In-Reply-To: <20080502.150448.32652665.davem@davemloft.net>

David Miller wrote:
> The problem only occurs once you reference a function that references
> libc stuff, and those guys are just lucky so far.

Yeah, lucky they don't need to reinvent the wheel every time the 
GCC/libgcc interface changes. :-)

If GCC generates a call to a libgcc function that calls a libc function, 
I'd consider that a pretty serious bug, given that said libc function is 
likely to consist of GCC-generated code, which could call the same 
libgcc function, which calls the libc function, etc.

> It's also one less variable to debug if you put the implementation
> in the kernel, or do you like debugging compiler induced problems?
> I don't :-)

I'd say problems are more likely if you use nonstandard implementations 
of GCC internals...

-Scott

  reply	other threads:[~2008-05-02 22:15 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-05-02 14:21 [PATCH] [POWERPC] Fix kernel builds with newer gcc versions and -Os Kumar Gala
2008-05-02 15:07 ` Scott Wood
2008-05-02 15:26   ` Kumar Gala
2008-05-02 17:34     ` Segher Boessenkool
2008-05-02 21:34       ` Kumar Gala
2008-05-02 21:40         ` Scott Wood
2008-05-02 21:42         ` David Miller
2008-05-02 21:45           ` Scott Wood
2008-05-02 22:04             ` David Miller
2008-05-02 22:16               ` Scott Wood [this message]
2008-05-02 22:30                 ` David Miller
2008-05-02 22:38                   ` Scott Wood
2008-05-02 22:39                     ` David Miller
2008-05-03  0:15               ` Segher Boessenkool
2008-05-02 23:24           ` Benjamin Herrenschmidt
2008-05-02 23:23         ` Benjamin Herrenschmidt
2008-05-08  6:26         ` Paul Mackerras
2008-05-02 17:33 ` Segher Boessenkool
2008-05-02 21:31   ` Kumar Gala

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