linux-kernel - Re: Build failure due to Intel PT

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Message-ID: <20150824200458.GD19203@kernel.org>
Date:	Mon, 24 Aug 2015 17:04:58 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
Cc:	Adrian Hunter <adrian.hunter@...el.com>,
	linux-kernel@...r.kernel.org
Subject: Re: Build failure due to Intel PT

Em Mon, Aug 24, 2015 at 11:51:31AM -0700, Sukadev Bhattiprolu escreveu:
> 
> I am trying to build perf tool on Powerpc and get this:
> 
> util/intel-pt-decoder/intel-pt-insn-decoder.c: In function ‘intel_pt_insn_decoder’:
> util/intel-pt-decoder/intel-pt-insn-decoder.c:138:3: error: switch missing default case [-Werror=switch-default]
>    switch (insn->immediate.nbytes) {
>    ^
> cc1: all warnings being treated as errors

> Besides adding a 'default' case, can this file be skipped when building on
> non-x86 architectures?

Not sure, what about processing a perf.data file generated on a x86
system using a PowerPC workstation?

Adrian, I am assuming this is only used when postprocessing, is that
right?

- Arnaldo
 
> I am on the perf/core branch, with HEAD pointing to:
> 
> 	commit c0b4dffbc529244d3e4e3bd392f2bffa2d8531a7
> 	Author: Arnaldo Carvalho de Melo <acme@...hat.com>
> 	Date:   Mon Aug 24 13:33:14 2015 -0300
> 
> 	perf annotate: Reset the dso find_symbol cache when removing symbols
> 
> Sukadev
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