linux-kernel - Re: [PATCH] perf: Let O= makes handle relative paths

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Date:	Wed, 15 Aug 2012 10:06:34 -0300
From:	Arnaldo Carvalho de Melo <acme@...radead.org>
To:	Borislav Petkov <bp@...64.org>
Cc:	Steven Rostedt <rostedt@...dmis.org>,
	Peter Zijlstra <peterz@...radead.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...nel.org>,
	Namhyung Kim <namhyung.kim@....com>
Subject: Re: [PATCH] perf: Let O= makes handle relative paths

Em Wed, Aug 15, 2012 at 12:27:22PM +0200, Borislav Petkov escreveu:
> On Mon, Aug 13, 2012 at 03:02:49PM -0300, Arnaldo Carvalho de Melo wrote:
> > [acme@...dy linux]$ rm -rf ../build/perf
> > [acme@...dy linux]$ make -j8 -C tools/perf/ LIBUNWIND_DIR=/opt/libunwind O=/home/acme/git/build/perf install
> > /bin/sh: line 0: cd: /home/acme/git/build/perf: No such file or directory
> > make: Entering directory `/home/git/linux/tools/perf'
> >     GEN perf-archive
> >     GEN /home/git/linux/tools/perf/python/perf.so
> > make[1]: Entering directory `/home/git/linux/tools/lib/traceevent'
> >     * new build flags or cross compiler
> >     CC /home/git/linux/tools/perf/perf.o

> > I.e. it should stop if the O= provided directory is not there.

> Why stop? Don't we want to make the directory instead and continue
> building in there?

That was the case in the past, but IIRC PeterZ advocated not to and I
agreed.

- Arnaldo
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