linux-kernel - Re: [PATCH 1/6] perf tools: Factor features display code

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Date:	Sat, 22 Feb 2014 17:34:40 +0100
From:	Ingo Molnar <mingo@...nel.org>
To:	Jiri Olsa <jolsa@...hat.com>
Cc:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	linux-kernel@...r.kernel.org,
	Corey Ashford <cjashfor@...ux.vnet.ibm.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Namhyung Kim <namhyung@...nel.org>,
	Paul Mackerras <paulus@...ba.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	David Ahern <dsahern@...il.com>,
	Jean Pihet <jean.pihet@...aro.org>
Subject: Re: [PATCH 1/6] perf tools: Factor features display code


* Jiri Olsa <jolsa@...hat.com> wrote:

> On Wed, Feb 19, 2014 at 06:59:36PM -0300, Arnaldo Carvalho de Melo wrote:
> > Em Wed, Feb 19, 2014 at 04:52:54PM +0100, Jiri Olsa escreveu:
> > > Currently the we display all detected features/libraries
> > > by following rules:
> > >  - if one of the features is missing
> > >  - if it's build from clean tree
> > > 
> > > This patch changes changes this behavior in several ways.
> > > 
> > > - We no longer display all detected features, only detected
> > >   libraries are displayed by default:
> > > 
> > >   $ make
> > >     BUILD:   Doing 'make -j4' parallel build
> > > 
> > >   Auto-detecting system features:
> > >   ...                         dwarf: [ on  ]
> > >   ...                         glibc: [ on  ]
> > >   ...                          gtk2: [ on  ]
> > >   ...                      libaudit: [ on  ]
> > >   ...                        libbfd: [ on  ]
> > >   ...                        libelf: [ on  ]
> > >   ...                       libnuma: [ on  ]
> > >   ...                       libperl: [ on  ]
> > >   ...                     libpython: [ on  ]
> > >   ...                      libslang: [ on  ]
> > >   ...                     libunwind: [ on  ]
> > 
> > I like it, testing now, one suggestion: Since this is just about
> > libraries, ditch the "lib' prefix, and make the header more
> > informative, making it look like this:
> > 
> >    Auto-detecting system libraries that enables features:
> >    ...                         dwarf: [ on  ]
> >    ...                             c: [ on  ]
> >    ...                          gtk2: [ on  ]
> >    ...                         audit: [ on  ]
> >    ...                           bfd: [ on  ]
> >    ...                           elf: [ on  ]
> >    ...                          numa: [ on  ]
> >    ...                          perl: [ on  ]
> >    ...                        python: [ on  ]
> >    ...                         slang: [ on  ]
> >    ...                        unwind: [ on  ]
> 
> yep, we could prettify it somehow.. but those names are tightly
> bound to tests in config/feature-checks/Makefile .. so it'd
> mean bigger change ;-)

The naming is also generally related to the feature test and the 
component library being tested, so it could be misleading/confusing to 
strip it?

Thanks,

	Ingo
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