linux-kernel - Re: [PATCH] ftrace: update recordmount.pl arch changes

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Message-ID: <20080820104711.GG2816@elte.hu>
Date:	Wed, 20 Aug 2008 12:47:11 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <peterz@...radead.org>
Subject: Re: [PATCH] ftrace: update recordmount.pl arch changes


* Steven Rostedt <rostedt@...dmis.org> wrote:

> On Fri, 15 Aug 2008, Ingo Molnar wrote:
> 
> > 
> > * Steven Rostedt <rostedt@...dmis.org> wrote:
> > 
> > > Ingo,
> > > 
> > > I'm trying to keep all the arch changes in recordmcount.pl in one 
> > > place. I moved your code into that area, by adding the flags to the 
> > > commands that were passed in.
> > > 
> > > Does this change still work for you when compiling i386 on a x86_64 
> > > box?
> > 
> > actually, i thought of this as a quick hack to let -tip testing 
> > continue. Dont we have all the proper information available in kbuild 
> > and should just pass that to scripts/recordmcount.pl when called - like 
> > we pass in things like OBJDUMP which might have cross-build overrides, 
> > etc.
> 
> Ingo,
> 
> Could you use my updated patch. I know it is still just a work around, but 
> your update broke my build.  I use distcc which passes in "distcc" as gcc. 
> My distcc is self built and is not the same as the distribution gcc.
> 
> Ie, you have:
> 
> if ($arch eq "x86_64") {
>   $ld = "ld -m elf_x86_64";
>   $objdump = "objdump -M x86-64";
>   $objcopy = "objcopy -O elf64-x86-64";
>   $cc = "gcc -m64";
> }
> 
> Where the $cc = "gcc" is not compatible on my system. I end up with a bad 
> build that causes ftrace to fail on bootup.

sure - applied to tip/tracing/ftrace.

	Ingo
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