linux-kernel - Re: gcc 4.5.1 / as 2.20.51.0.11 miscompiling drivers/char/i8k.c ?

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Date:	Sun, 14 Nov 2010 19:52:08 -0500
From:	James Cloos <cloos@...loos.com>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Cc:	Andreas Schwab <schwab@...hat.com>,
	Andi Kleen <andi@...stfloor.org>, Michael Matz <matz@...e.de>,
	Dave Korn <dave.korn.cygwin@...il.com>,
	Richard Guenther <richard.guenther@...il.com>,
	Jim <jim876@...all.nl>, gcc@....gnu.org,
	Jim Bos <jim876@...all.nl>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: gcc 4.5.1 / as 2.20.51.0.11 miscompiling drivers/char/i8k.c ?

Gcc 4.5.1 running on an amd64 box "cross"-compiling for a P3 i8k fails
to compile the module since commit 6b4e81db2552bad04100e7d5ddeed7e848f53b48
with:

  CC      drivers/char/i8k.o
drivers/char/i8k.c: In function ‘i8k_smm’:
drivers/char/i8k.c:149:2: error: can't find a register in class ‘GENERAL_REGS’ while reloading ‘asm’
drivers/char/i8k.c:149:2: error: ‘asm’ operand has impossible constraints

-JimC
-- 
James Cloos <cloos@...loos.com>         OpenPGP: 1024D/ED7DAEA6
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