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Re: perf: unwind: target platform=x86 not supported was: Re: [PATCH 1/2] perf evsel: Fix probing of precise_ip level for default cycles event

From Jiri Olsa <jolsa@redhat.com>
Newsgroups linux.kernel
Subject Re: perf: unwind: target platform=x86 not supported was: Re: [PATCH 1/2] perf evsel: Fix probing of precise_ip level for default cycles event
Date 2017-06-14 16:40 +0200
Message-ID <tShCG-6mB-5@gated-at.bofh.it> (permalink)
References (1 earlier) <tS3q1-5Rb-9@gated-at.bofh.it> <tS9lL-1ah-3@gated-at.bofh.it> <tSgGC-5Le-15@gated-at.bofh.it> <tSgZX-5S3-21@gated-at.bofh.it> <tShsZ-6j2-5@gated-at.bofh.it>
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On Wed, Jun 14, 2017 at 04:19:51PM +0200, Jiri Olsa wrote:
> On Wed, Jun 14, 2017 at 10:52:42AM -0300, Arnaldo Carvalho de Melo wrote:
> 
> SNIP
> 
> > 
> > And what defines it is...
> > 
> > tools/perf/util/libunwind/x86_32.c:#define REMOTE_UNWIND_LIBUNWIND
> > 
> > (and a arm64 file, but lets leave that aside, seems unrelated to this
> > case)
> > 
> > That will get built by...
> > 
> > tools/perf/util/Build:libperf-$(CONFIG_LIBUNWIND_X86)      += libunwind/x86_32.o
> > 
> > [acme@jouet linux]$ grep CONFIG_LIBUNWIND_X86 /tmp/build/perf/.config-detected
> > [acme@jouet linux]$
> > 
> > Ingo, are you doing something unusual as building a 32-bit perf to read a
> > 62-bit perf.data file?
> > 
> > Jiri, can you help here? Do you need more info?
> 
> hum, looks like local unwind support wasn't compiled in for some reason
> 
> Ingo, what's the arch of host and perf data?

also "make clean && make VF=1 V=1" output would help

thanks,
jirka

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[GIT PULL 0/2] perf/urgent fixes for 4.12 Arnaldo Carvalho de Melo <acme@kernel.org> - 2017-06-14 01:30 +0200
  [PATCH 1/2] perf evsel: Fix probing of precise_ip level for default cycles event Arnaldo Carvalho de Melo <acme@kernel.org> - 2017-06-14 01:30 +0200
    Re: [PATCH 1/2] perf evsel: Fix probing of precise_ip level for  default cycles event Ingo Molnar <mingo@kernel.org> - 2017-06-14 07:50 +0200
      Re: [PATCH 1/2] perf evsel: Fix probing of precise_ip level for  default cycles event Arnaldo Carvalho de Melo <acme@kernel.org> - 2017-06-14 12:50 +0200
        Re: [PATCH 1/2] perf evsel: Fix probing of precise_ip level for  default cycles event Arnaldo Carvalho de Melo <acme@kernel.org> - 2017-06-14 13:00 +0200
          Re: [PATCH 1/2] perf evsel: Fix probing of precise_ip level for  default cycles event Ingo Molnar <mingo@kernel.org> - 2017-06-14 16:00 +0200
            Re: [PATCH 1/2] perf evsel: Fix probing of precise_ip level for  default cycles event Arnaldo Carvalho de Melo <acme@kernel.org> - 2017-06-14 16:50 +0200
        Re: [PATCH 1/2] perf evsel: Fix probing of precise_ip level for  default cycles event Ingo Molnar <mingo@kernel.org> - 2017-06-14 13:00 +0200
      Re: [PATCH 1/2] perf evsel: Fix probing of precise_ip level for  default cycles event Arnaldo Carvalho de Melo <acme@kernel.org> - 2017-06-14 15:40 +0200
        perf: unwind: target platform=x86 not supported was:  Re: [PATCH  1/2] perf evsel: Fix probing of precise_ip level for default cycles event Arnaldo Carvalho de Melo <acme@kernel.org> - 2017-06-14 16:00 +0200
          Re: perf: unwind: target platform=x86 not supported was:  Re: [PATCH  1/2] perf evsel: Fix probing of precise_ip level for default cycles event Jiri Olsa <jolsa@redhat.com> - 2017-06-14 16:30 +0200
            Re: perf: unwind: target platform=x86 not supported was:  Re: [PATCH  1/2] perf evsel: Fix probing of precise_ip level for default cycles event Jiri Olsa <jolsa@redhat.com> - 2017-06-14 16:40 +0200
            Re: perf: unwind: target platform=x86 not supported was:  Re: [PATCH  1/2] perf evsel: Fix probing of precise_ip level for default cycles event Arnaldo Carvalho de Melo <acme@kernel.org> - 2017-06-14 16:50 +0200
        Re: [PATCH 1/2] perf evsel: Fix probing of precise_ip level for  default cycles event Ingo Molnar <mingo@kernel.org> - 2017-06-14 16:10 +0200
          Re: [PATCH 1/2] perf evsel: Fix probing of precise_ip level for  default cycles event Arnaldo Carvalho de Melo <acme@kernel.org> - 2017-06-14 16:50 +0200
          Re: [PATCH 1/2] perf evsel: Fix probing of precise_ip level for  default cycles event Arnaldo Carvalho de Melo <acme@kernel.org> - 2017-06-14 21:20 +0200
  [PATCH 2/2] perf tools: Fix build with ARCH=x86_64 Arnaldo Carvalho de Melo <acme@kernel.org> - 2017-06-14 01:30 +0200
  Re: [GIT PULL 0/2] perf/urgent fixes for 4.12 Ingo Molnar <mingo@kernel.org> - 2017-06-14 07:40 +0200

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