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Wed, 17 Jul 2019 14:05:55 -0700 (PDT) From: Arnaldo Carvalho de Melo X-Google-Original-From: Arnaldo Carvalho de Melo Received: by quaco.ghostprotocols.net (Postfix, from userid 1000) id 10C2240340; Wed, 17 Jul 2019 18:05:51 -0300 (-03) Date: Wed, 17 Jul 2019 18:05:51 -0300 To: Jiri Olsa Cc: Igor Lubashev , linux-kernel@vger.kernel.org, Peter Zijlstra , Ingo Molnar , Mathieu Poirier , Alexander Shishkin , Namhyung Kim , Suzuki K Poulose , linux-arm-kernel@lists.infradead.org, James Morris Subject: Re: [PATCH 1/3] perf: Add capability-related utilities Message-ID: <20190717210551.GI3624@kernel.org> References: <1562112605-6235-1-git-send-email-ilubashe@akamai.com> <1562112605-6235-2-git-send-email-ilubashe@akamai.com> <20190716084643.GA22317@krava> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190716084643.GA22317@krava> X-Url: http://acmel.wordpress.com User-Agent: Mutt/1.12.0 (2019-05-25) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 > > --- > > 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