linux-kernel - Re: [PATCH 0/5] ftrace: to kill a daemon

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Message-ID: <alpine.DEB.1.10.0808071730470.10092@gandalf.stny.rr.com>
Date:	Thu, 7 Aug 2008 17:35:16 -0400 (EDT)
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Bodo Eggert <7eggert@....de>
cc:	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...e.hu>,
	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>,
	Roland McGrath <roland@...hat.com>,
	Ulrich Drepper <drepper@...hat.com>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Jeremy Fitzhardinge <jeremy@...p.org>,
	Gregory Haskins <ghaskins@...ell.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	"Luis Claudio R. Goncalves" <lclaudio@...g.org>,
	Clark Williams <williams@...hat.com>
Subject: Re: [PATCH 0/5] ftrace: to kill a daemon


On Thu, 7 Aug 2008, Bodo Eggert wrote:

> Steven Rostedt <rostedt@...dmis.org> wrote:
> 
> > The idea I came
> > up with was to make a tmp.s file for every object just after it is compiled.
> 
> make -j would cause these files to overwrite each other, wouldn't it?

I simplified my explanation. I really used something like this:

for init/main.o:

init/.tmp_mc_main.s  : for the list file
init/.tmp_mc_main.o  : for the list compiled object.
init/.tmp_gl_main.o  : for the object converted static to global.
init/.tmp_mx_main.o  : for the merged list and global object.


The tmp.s was to keep the focus on the concept. But the actual 
implementation handles multi-threaded builds.

I use distcc and build with -j40. I had no issues.

Thanks,

-- Steve

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