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From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Jiri Olsa <jolsa@redhat.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Igor Lubashev <ilubashe@akamai.com>,
	linux-kernel@vger.kernel.org, James Morris <jmorris@namei.org>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Ingo Molnar <mingo@redhat.com>,
	Namhyung Kim <namhyung@kernel.org>,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 1/3] perf: Add capability-related utilities
Date: Wed, 17 Jul 2019 18:05:51 -0300	[thread overview]
Message-ID: <20190717210551.GI3624@kernel.org> (raw)
In-Reply-To: <20190716084643.GA22317@krava>

Em Tue, Jul 16, 2019 at 10:46:43AM +0200, Jiri Olsa escreveu:
> On Tue, Jul 02, 2019 at 08:10:03PM -0400, Igor Lubashev wrote:
> > Add utilities to help checking capabilities of the running process.
> > Make perf link with libcap.
> > 
> > Signed-off-by: Igor Lubashev <ilubashe@akamai.com>
> > ---
> >  tools/perf/Makefile.config         |  2 +-
> >  tools/perf/util/Build              |  1 +
> >  tools/perf/util/cap.c              | 24 ++++++++++++++++++++++++
> >  tools/perf/util/cap.h              | 10 ++++++++++
> >  tools/perf/util/event.h            |  1 +
> >  tools/perf/util/python-ext-sources |  1 +
> >  tools/perf/util/util.c             |  9 +++++++++
> >  7 files changed, 47 insertions(+), 1 deletion(-)
> >  create mode 100644 tools/perf/util/cap.c
> >  create mode 100644 tools/perf/util/cap.h
> > 
> > diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
> > index 85fbcd265351..21470a50ed39 100644
> > --- a/tools/perf/Makefile.config
> > +++ b/tools/perf/Makefile.config
> > @@ -259,7 +259,7 @@ CXXFLAGS += -Wno-strict-aliasing
> >  # adding assembler files missing the .GNU-stack linker note.
> >  LDFLAGS += -Wl,-z,noexecstack
> >  
> > -EXTLIBS = -lpthread -lrt -lm -ldl
> > +EXTLIBS = -lpthread -lrt -lm -ldl -lcap
> 
> I wonder we should detect libcap or it's everywhere.. Arnaldo's compile test suite might tell

I'll add this tentatively and try to build it in my test suite.

- Arnaldo

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  reply	other threads:[~2019-07-17 21:06 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-03  0:10 [PATCH 0/3] perf: Use capabilities instead of uid and euid Igor Lubashev
2019-07-03  0:10 ` [PATCH 1/3] perf: Add capability-related utilities Igor Lubashev
2019-07-16  8:46   ` Jiri Olsa
2019-07-17 21:05     ` Arnaldo Carvalho de Melo [this message]
2019-07-17 23:46       ` Arnaldo Carvalho de Melo
2019-07-17 23:48         ` Arnaldo Carvalho de Melo
2019-07-18 21:00         ` Lubashev, Igor
2019-08-07  3:58         ` Lubashev, Igor
2019-07-03  0:10 ` [PATCH 2/3] perf: Use CAP_SYS_ADMIN with perf_event_paranoid checks Igor Lubashev
2019-07-16  8:47   ` Jiri Olsa
2019-07-16 17:01     ` Lubashev, Igor
2019-07-17  7:10       ` Jiri Olsa
2019-07-17 18:33         ` Lubashev, Igor
2019-07-03  0:10 ` [PATCH 3/3] perf: Use CAP_SYSLOG with kptr_restrict checks Igor Lubashev
2019-07-16 10:51 ` [PATCH 0/3] perf: Use capabilities instead of uid and euid Alexey Budankov

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