From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754808AbbAZKNt (ORCPT ); Mon, 26 Jan 2015 05:13:49 -0500 Received: from mx1.redhat.com ([209.132.183.28]:34606 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754780AbbAZKNq (ORCPT ); Mon, 26 Jan 2015 05:13:46 -0500 From: Jiri Olsa To: linux-kernel@vger.kernel.org Cc: Jiri Olsa , Alexis Berlemont , Arnaldo Carvalho de Melo , Borislav Petkov , Corey Ashford , David Ahern , Frederic Weisbecker , Ingo Molnar , Namhyung Kim , Paul Mackerras , Peter Zijlstra , Stephane Eranian Subject: [PATCH 05/36] perf build: Disable make's built-in rules Date: Mon, 26 Jan 2015 11:12:05 +0100 Message-Id: <1422267156-13873-6-git-send-email-jolsa@kernel.org> In-Reply-To: <1422267156-13873-1-git-send-email-jolsa@kernel.org> References: <1422267156-13873-1-git-send-email-jolsa@kernel.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org We don't use any built-in rules, so we can disable make's checks for that and build faster. Signed-off-by: Jiri Olsa Tested-by: Sukadev Bhattiprolu Tested-by: Will Deacon Cc: Alexis Berlemont Cc: Arnaldo Carvalho de Melo Cc: Borislav Petkov Cc: Corey Ashford Cc: David Ahern Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian --- tools/perf/Makefile.perf | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index aa6a50447c32..8087f97ee4e8 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefile.perf @@ -84,6 +84,10 @@ ifneq ($(OUTPUT),) #$(info Determined 'OUTPUT' to be $(OUTPUT)) endif +# Do not use make's built-in rules +# (this increases performance and avoids hard-to-debug behaviour); +MAKEFLAGS += -r + $(OUTPUT)PERF-VERSION-FILE: ../../.git/HEAD @$(SHELL_PATH) util/PERF-VERSION-GEN $(OUTPUT) @touch $(OUTPUT)PERF-VERSION-FILE -- 1.9.3