From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752976AbaB0N3X (ORCPT ); Thu, 27 Feb 2014 08:29:23 -0500 Received: from terminus.zytor.com ([198.137.202.10]:54735 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752936AbaB0N3S (ORCPT ); Thu, 27 Feb 2014 08:29:18 -0500 Date: Thu, 27 Feb 2014 05:28:34 -0800 From: tip-bot for Arnaldo Carvalho de Melo Message-ID: Cc: linux-kernel@vger.kernel.org, eranian@google.com, paulus@samba.org, acme@redhat.com, hpa@zytor.com, mingo@kernel.org, peterz@infradead.org, efault@gmx.de, namhyung@kernel.org, jolsa@redhat.com, fweisbec@gmail.com, adrian.hunter@intel.com, dsahern@gmail.com, tglx@linutronix.de Reply-To: mingo@kernel.org, hpa@zytor.com, acme@redhat.com, paulus@samba.org, eranian@google.com, linux-kernel@vger.kernel.org, efault@gmx.de, peterz@infradead.org, namhyung@kernel.org, jolsa@redhat.com, fweisbec@gmail.com, dsahern@gmail.com, adrian.hunter@intel.com, tglx@linutronix.de To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/core] perf tools: Warn the user about how to enable libunwind support Git-Commit-ID: 7a0447d61d2d754988add992be2b46d4587ae86a X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 7a0447d61d2d754988add992be2b46d4587ae86a Gitweb: http://git.kernel.org/tip/7a0447d61d2d754988add992be2b46d4587ae86a Author: Arnaldo Carvalho de Melo AuthorDate: Thu, 20 Feb 2014 16:08:18 -0300 Committer: Arnaldo Carvalho de Melo CommitDate: Mon, 24 Feb 2014 09:29:36 -0300 perf tools: Warn the user about how to enable libunwind support When one has libunwind installed somewhere the perf tools build process doesn't expects it to be, this happens: [acme@ssdandy linux]$ make O=/tmp/build/perf -C tools/perf/ install-bin make: Entering directory `/home/acme/git/linux/tools/perf' BUILD: Doing 'make -j8' parallel build config/Makefile:312: No libunwind found, disabling post unwind support. Please install libunwind-dev[el] >= 1.1 Auto-detecting system features: ... libunwind: [ OFF ] Change the message so that it tells how to use a non-standard libunwind install directory: config/Makefile:312: No libunwind found, disabling post unwind support. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR [acme@ssdandy linux]$ make LIBUNWIND_DIR=/opt/libunwind-git/ O=/tmp/build/perf -C tools/perf/ install-bin make: Entering directory `/home/acme/git/linux/tools/perf' BUILD: Doing 'make -j8' parallel build Auto-detecting system features: ... libunwind: [ on ] Acked-by: Jiri Olsa Cc: Adrian Hunter Cc: David Ahern Cc: Frederic Weisbecker Cc: Jiri Olsa Cc: Mike Galbraith Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/n/tip-huoxnou7sw85lm58k3pi1xhw@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/config/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile index 97a64c4..9429805 100644 --- a/tools/perf/config/Makefile +++ b/tools/perf/config/Makefile @@ -309,7 +309,7 @@ endif # NO_LIBELF ifndef NO_LIBUNWIND ifneq ($(feature-libunwind), 1) - msg := $(warning No libunwind found, disabling post unwind support. Please install libunwind-dev[el] >= 1.1); + msg := $(warning No libunwind found, disabling post unwind support. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR); NO_LIBUNWIND := 1 else ifeq ($(ARCH),arm)