linux-kernel - Re: sparc64: Optimized immediate value implementation build error

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Message-Id: <20081013.011525.31258522.davem@davemloft.net>
Date:	Mon, 13 Oct 2008 01:15:25 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	mathieu.desnoyers@...ymtl.ca
Cc:	linux-kernel@...r.kernel.org
Subject: Re: sparc64: Optimized immediate value implementation build error

From: Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
Date: Fri, 3 Oct 2008 16:10:07 -0400

> I ran a cross-compiler on the -lttng tree
> git://git.kernel.org/pub/scm/linux/kernel/git/compudj/linux-2.6-lttng.git
> 
> to build the sparc64 arch, and ran across this build error :
> 
> /home/compudj/git/morestable/linux-2.6-lttng/include/trace/sched.h: In function `do_fork':
> /home/compudj/git/morestable/linux-2.6-lttng/include/trace/sched.h:38: warning: asm operand 1 probably doesn't match constraints
> /home/compudj/git/morestable/linux-2.6-lttng/include/trace/sched.h:38: error: impossible constraint in `asm'
> /home/compudj/git/morestable/linux-2.6-lttng/include/trace/sched.h:38: warning: 'value' might be used uninitialized in this function
> make[2]: *** [kernel/fork.o] Error 1
> 
> I think it's caused by :
> http://git.kernel.org/?p=linux/kernel/git/compudj/linux-2.6-lttng.git;a=commit;h=c76bfa90a6eb02651368a152b3646aa672d9e625

It can't be "caused by" that commit because that's the initial
immediate value sparc64 support I wrote and the tree very much compiled
properly when I did test builds way back then.

I don't have time to look further into this right now, sorry.
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