linux-kernel - Re: [PATCH 0/3] ftrace: handle kernel code remove

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Message-ID: <20080815094827.GA21766@elte.hu>
Date:	Fri, 15 Aug 2008 11:48:27 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <peterz@...radead.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	David Miller <davem@...emloft.net>,
	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>,
	Gregory Haskins <ghaskins@...ell.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	"Luis Claudio R. Goncalves" <lclaudio@...g.org>,
	Clark Williams <williams@...hat.com>, srostedt@...hat.com,
	Sam Ravnborg <sam@...nborg.org>
Subject: Re: [PATCH 0/3] ftrace: handle kernel code remove


* Ingo Molnar <mingo@...e.hu> wrote:

> 
> * Ingo Molnar <mingo@...e.hu> wrote:
> 
> > applied to tip/tracing/ftrace - thanks Steve! I merged it into 
> > tip/master and started testing it.
> 
> hm, massive build failures:
> 
> ld: Relocatable linking with relocations from format elf32-i386 (init/.tmp_gl_calibrate.o) to format elf64-x86-64 (init/.tmp_mx_calibrate.o) i  CC      arch/x86/mm/extable.o
> objcopy: 'init/.tmp_mx_calibrate.o': No such file
> rm: cannot remove `init/.tmp_mx_calibrate.o': No such file or directory
> ld: Relocatable linking with relocations from format elf32-i386 (arch/x86/mm/extable.o) to format elf64-x86-64 (arch/x86/mm/.tmp_mx_extable.o) is not supported
> mv: cannot stat `arch/x86/mm/.tmp_mx_extable.o': No such file or directory
> ld: Relocatable linking with relocations from format elf32-i386 (arch/x86/mm/fault.o) to format elf64-x86-64 (arch/x86/mm/.tmp_mx_fault.o) is not supported
> 
> with this config:
> 
>   http://redhat.com/~mingo/misc/config-Fri_Aug_15_11_34_53_CEST_2008.bad

the problem is that i'm building a 32-bit kernel on a 64-bit host, and 
the scripts/recordmcount.pl script does not create the temporary object 
files in the proper (32-bit) output ELF format.

	Ingo
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