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

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Message-ID: <CAOFdcFN5AbMU=861S5bw+cSQQSzuGwYbWm5zyfak14NcUCjUZg@mail.gmail.com>
Date:   Mon, 28 Nov 2016 07:25:53 -0800
From:   Peter Foley <pefoley2@...oley.com>
To:     Arnaldo Carvalho de Melo <acme@...hat.com>
Cc:     Jiri Olsa <jolsa@...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 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?

Thanks,

Peter