linux-kernel - Re: [PATCH] perf tool: Fix build for NO

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Date:	Tue, 2 Oct 2012 18:45:36 -0300
From:	Arnaldo Carvalho de Melo <acme@...hat.com>
To:	Jiri Olsa <jolsa@...hat.com>
Cc:	Ben Guthro <ben.guthro@...il.com>,
	Ian Munsie <imunsie@....ibm.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	David Ahern <dsahern@...il.com>,
	Namhyung Kim <namhyung.kim@....com>
Subject: Re: [PATCH] perf tool: Fix build for NO_DWARF=1 case

Em Tue, Oct 02, 2012 at 03:10:49PM +0200, Jiri Olsa escreveu:
> On Tue, Oct 02, 2012 at 07:39:23AM -0400, Ben Guthro wrote:
> > Actually - I hadn't noticed these warnings before.

> > After installing libdw-dev - the perf build completed successfully.
> > Perhaps this should be fatal, rather than a warning?

> attached patch fixies the issue for me. Adding Arnaldo to the loop.

[acme@...dy linux]$ make -j8 -C tools/perf/ LIBUNWIND_DIR=/opt/libunwind O=/home/acme/git/build/perf install
cc1: warnings being treated as errors
arch/x86/util/dwarf-regs.c:72: error: no previous prototype for ‘get_arch_regstr’
make: *** [/home/acme/git/build/perf/arch/x86/util/dwarf-regs.o] Error 1
make: *** Waiting for unfinished jobs....
make: Leaving directory `/home/git/linux/tools/perf'
[acme@...dy linux]$

- Arnaldo
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