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

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Date:	Tue, 19 Aug 2008 14:33:27 -0400 (EDT)
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Ingo Molnar <mingo@...e.hu>
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


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.


-- Steve

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