linux-kernel - Re: [PATCH v2] Fix objtool with clang

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Message-ID: <20161128165859.GC30148@krava>
Date:   Mon, 28 Nov 2016 17:58:59 +0100
From:   Jiri Olsa <jolsa@...hat.com>
To:     Peter Foley <pefoley2@...oley.com>
Cc:     Arnaldo Carvalho de Melo <acme@...hat.com>,
        LKML <linux-kernel@...r.kernel.org>, wangnan0@...wei.com
Subject: Re: [PATCH v2] Fix objtool with clang

On Mon, Nov 28, 2016 at 07:25:53AM -0800, Peter Foley wrote:
> On Mon, Nov 28, 2016 at 7:00 AM, Arnaldo Carvalho de Melo
> <acme@...hat.com> wrote:
> > After I applied this I started getting this:
> >
> >   CC       /tmp/build/perf/tests/sw-clock.o
> > /tmp/build/perf/.plugin_jbd2.o.cmd:3: *** empty variable name.  Stop.
> > Makefile:192: recipe for target '/tmp/build/perf/plugin_jbd2-in.o' failed
> > make[2]: *** [/tmp/build/perf/plugin_jbd2-in.o] Error 2
> > Makefile.perf:591: recipe for target '/tmp/build/perf/libtraceevent-dynamic-list' failed
> > make[1]: *** [/tmp/build/perf/libtraceevent-dynamic-list] Error 2
> > make[1]: *** Waiting for unfinished jobs....
> >   CC       /tmp/build/perf/tests/mmap-thread-lookup.o
> 
> Odd, I can't reproduce that...
> Mind sending your gcc version + the output of make V=1 + the contents
> of the .cmd file causing the error?

same here, can't reproduce.. might be some race issue we experienced before

jirka