From: Ingo Molnar <mingo@kernel.org>
To: Jiri Olsa <jolsa@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>,
linux-kernel@vger.kernel.org,
Corey Ashford <cjashfor@linux.vnet.ibm.com>,
Frederic Weisbecker <fweisbec@gmail.com>,
Ingo Molnar <mingo@elte.hu>, Namhyung Kim <namhyung@kernel.org>,
Paul Mackerras <paulus@samba.org>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Steven Rostedt <rostedt@goodmis.org>,
David Ahern <dsahern@gmail.com>
Subject: Re: [PATCH 28/28] perf tools: Add udis86 disassembler feature check
Date: Tue, 10 Dec 2013 16:31:51 +0100 [thread overview]
Message-ID: <20131210153151.GB1195@gmail.com> (raw)
In-Reply-To: <20131205130220.GH21600@krava.brq.redhat.com>
* Jiri Olsa <jolsa@redhat.com> wrote:
> On Thu, Dec 05, 2013 at 11:45:46AM +0100, Ingo Molnar wrote:
>
> SNIP
>
> > > >
> > > > 1)
> > > >
> > > > So, the first problem I can see is in the output:
> > > >
> > > > Auto-detecting system features:
> > > > ... backtrace: [ on ]
> > > > ... dwarf: [ on ]
> > > > ... fortify-source: [ on ]
> > > > ... glibc: [ on ]
> > > > ... gtk2: [ on ]
> > > > ... gtk2-infobar: [ on ]
> > > > ... libaudit: [ on ]
> > > > ... libbfd: [ on ]
> > > > ... libelf: [ on ]
> > > > ... libelf-getphdrnum: [ on ]
> > > > ... libelf-mmap: [ on ]
> > > > ... libnuma: [ on ]
> > > > ... libperl: [ on ]
> > > > ... libpython: [ on ]
> > > > ... libpython-version: [ on ]
> > > > ... libslang: [ on ]
> > > > ... libunwind: [ on ]
> > > > ... on-exit: [ on ]
> > > > ... stackprotector-all: [ on ]
> > > > ... timerfd: [ on ]
> > > >
> > > > config/Makefile:421: No udis86 support.
> > > >
> > > > such a 'no XYZ support' message should only occur if a feature test
> > > > failed. _If_ we decide that 'udis86' support is required for a full
> > > > perf build then there should be a new line saying something like:
> > > >
> > > > ... udis86: [ OFF ]
> > >
> > > hum, just sent v4 that added udis86 into above list ;-)
> > >
> > > So.. do we consider 'full perf build' to be build with all
> > > possible libraries linked in?
> >
> > So my worry is, how widely is libudis86 available in distros? What is
> > the package name on Debian/Ubuntu for example?
>
> I did not find any.. :-\ I can see Fedora and Gentoo
That's a problem really - all perf developers who are using Ubuntu
will see the failure, without being able to do anything about it.
So maybe we need an intermediate feature-mode for such convenience
features that don't really impact measurement capabilities, those
features could be probed but failures would not be displayed in such a
highly prominent fashion.
Thanks,
Ingo
prev parent reply other threads:[~2013-12-10 15:31 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-03 13:09 [PATCHv3 00/28] perf tools: Add traceevent plugins support Jiri Olsa
2013-12-03 13:09 ` [PATCH 01/28] perf tools: Remove stackprotector feature check Jiri Olsa
2013-12-10 9:16 ` [tip:perf/core] " tip-bot for Jiri Olsa
2013-12-03 13:09 ` [PATCH 02/28] tools lib traceevent: Add plugin support Jiri Olsa
2013-12-10 9:17 ` [tip:perf/core] " tip-bot for Jiri Olsa
2013-12-03 13:09 ` [PATCH 03/28] tools lib traceevent: Add plugin build support Jiri Olsa
2013-12-10 9:17 ` [tip:perf/core] " tip-bot for Jiri Olsa
2013-12-03 13:09 ` [PATCH 04/28] tools lib traceevent: Add traceevent_host_bigendian function Jiri Olsa
2013-12-10 9:17 ` [tip:perf/core] " tip-bot for Jiri Olsa
2013-12-03 13:09 ` [PATCH 05/28] tools lib traceevent: Change pevent_parse_format to include pevent handle Jiri Olsa
2013-12-10 9:18 ` [tip:perf/core] " tip-bot for Jiri Olsa
2013-12-03 13:09 ` [PATCH 06/28] tools lib traceevent: Harmonize the install messages in lib-traceevent Jiri Olsa
2013-12-10 9:18 ` [tip:perf/core] " tip-bot for Jiri Olsa
2013-12-03 13:09 ` [PATCH 07/28] perf tools: Add build and install plugins targets Jiri Olsa
2013-12-10 9:18 ` [tip:perf/core] " tip-bot for Jiri Olsa
2013-12-03 13:09 ` [PATCH 08/28] perf tools: Add filename__read_str util function Jiri Olsa
2013-12-10 9:18 ` [tip:perf/core] " tip-bot for Jiri Olsa
2013-12-03 13:09 ` [PATCH 09/28] perf tools: Add trace-event object Jiri Olsa
2013-12-10 9:18 ` [tip:perf/core] " tip-bot for Jiri Olsa
2013-12-03 13:09 ` [PATCH 10/28] perf tools: Add trace-event global object for tracepoint interface Jiri Olsa
2013-12-10 9:18 ` [tip:perf/core] " tip-bot for Jiri Olsa
2013-12-03 13:09 ` [PATCH 11/28] perf tools: Overload pr_stat traceevent print function Jiri Olsa
2013-12-10 9:19 ` [tip:perf/core] " tip-bot for Jiri Olsa
2013-12-03 13:09 ` [PATCH 12/28] tools lib traceevent: Add jbd2 plugin Jiri Olsa
2013-12-10 9:19 ` [tip:perf/core] " tip-bot for Jiri Olsa
2013-12-03 13:09 ` [PATCH 13/28] tools lib traceevent: Add hrtimer plugin Jiri Olsa
2013-12-10 9:19 ` [tip:perf/core] " tip-bot for Jiri Olsa
2013-12-03 13:09 ` [PATCH 14/28] tools lib traceevent: Add kmem plugin Jiri Olsa
2013-12-10 9:19 ` [tip:perf/core] " tip-bot for Jiri Olsa
2013-12-03 13:09 ` [PATCH 15/28] tools lib traceevent: Add kvm plugin Jiri Olsa
2013-12-10 9:19 ` [tip:perf/core] " tip-bot for Jiri Olsa
2013-12-03 13:09 ` [PATCH 16/28] tools lib traceevent: Add mac80211 plugin Jiri Olsa
2013-12-10 9:20 ` [tip:perf/core] " tip-bot for Jiri Olsa
2013-12-03 13:09 ` [PATCH 17/28] tools lib traceevent: Add sched_switch plugin Jiri Olsa
2013-12-10 9:20 ` [tip:perf/core] " tip-bot for Jiri Olsa
2013-12-03 13:09 ` [PATCH 18/28] tools lib traceevent: Add function plugin Jiri Olsa
2013-12-10 9:20 ` [tip:perf/core] " tip-bot for Jiri Olsa
2013-12-03 13:09 ` [PATCH 19/28] tools lib traceevent: Add xen plugin Jiri Olsa
2013-12-10 9:20 ` [tip:perf/core] " tip-bot for Jiri Olsa
2013-12-03 13:09 ` [PATCH 20/28] tools lib traceevent: Add scsi plugin Jiri Olsa
2013-12-10 9:20 ` [tip:perf/core] " tip-bot for Jiri Olsa
2013-12-03 13:09 ` [PATCH 21/28] tools lib traceevent: Add cfg80211 plugin Jiri Olsa
2013-12-10 9:21 ` [tip:perf/core] " tip-bot for Jiri Olsa
2013-12-03 13:09 ` [PATCH 22/28] tools lib traceevent: Remove malloc_or_die from event-plugin.c Jiri Olsa
2013-12-03 16:16 ` Steven Rostedt
2013-12-04 9:29 ` Jiri Olsa
2013-12-04 13:29 ` Arnaldo Carvalho de Melo
2013-12-04 13:51 ` Steven Rostedt
2013-12-10 9:21 ` [tip:perf/core] " tip-bot for Jiri Olsa
2013-12-03 13:09 ` [PATCH 23/28] tools lib traceevent: Use static functions in jbd2 plugin Jiri Olsa
2013-12-10 9:21 ` [tip:perf/core] " tip-bot for Jiri Olsa
2013-12-03 13:09 ` [PATCH 24/28] tools lib traceevent: Use pevent_print_func_field in hrtimer_start handler Jiri Olsa
2013-12-10 9:21 ` [tip:perf/core] " tip-bot for Jiri Olsa
2013-12-03 13:09 ` [PATCH 25/28] tools lib traceevent: Several cleanups for function plugin Jiri Olsa
2013-12-10 9:21 ` [tip:perf/core] " tip-bot for Jiri Olsa
2013-12-03 13:09 ` [PATCH 26/28] tools lib traceevent: Remove malloc_or_die from plugin_function.c Jiri Olsa
2013-12-10 9:21 ` [tip:perf/core] " tip-bot for Jiri Olsa
2013-12-03 13:09 ` [PATCH 27/28] tools lib traceevent: Update kvm plugin with is_writable_pte helper Jiri Olsa
2013-12-10 9:21 ` [tip:perf/core] " tip-bot for Jiri Olsa
2013-12-03 13:09 ` [PATCH 28/28] perf tools: Add udis86 disassembler feature check Jiri Olsa
2013-12-04 18:50 ` Arnaldo Carvalho de Melo
2013-12-04 18:53 ` Arnaldo Carvalho de Melo
2013-12-04 21:25 ` Jiri Olsa
2013-12-05 8:05 ` Jiri Olsa
2013-12-05 9:23 ` [PATCHv4 " Jiri Olsa
2013-12-05 9:25 ` [PATCH " Ingo Molnar
2013-12-05 9:41 ` Jiri Olsa
2013-12-05 10:45 ` Ingo Molnar
2013-12-05 13:02 ` Jiri Olsa
2013-12-10 15:31 ` Ingo Molnar [this message]
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