From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752425AbdGZOUJ (ORCPT ); Wed, 26 Jul 2017 10:20:09 -0400 Received: from mail.kernel.org ([198.145.29.99]:48860 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752347AbdGZOUE (ORCPT ); Wed, 26 Jul 2017 10:20:04 -0400 DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 11BE422CAA Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=acme@kernel.org From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, David Carrillo-Cisneros , Alexander Shishkin , Elena Reshetova , Kees Kook , Paul Turner , Stephane Eranian , Sudeep Holla , Wang Nan , Arnaldo Carvalho de Melo Subject: [PATCH 25/40] perf tools: Add EXCLUDE_EXTLIBS and EXTRA_PERFLIBS to makefile Date: Wed, 26 Jul 2017 11:17:15 -0300 Message-Id: <20170726141730.30750-26-acme@kernel.org> X-Mailer: git-send-email 2.9.4 In-Reply-To: <20170726141730.30750-1-acme@kernel.org> References: <20170726141730.30750-1-acme@kernel.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: David Carrillo-Cisneros The goal is to allow users to override linking of libraries that were automatically added to PERFLIBS. EXCLUDE_EXTLIBS contains linker flags to be removed from LIBS while EXTRA_PERFLIBS contains linker flags to be added. My use case is to force certain library to be build statically, e.g. for libelf: EXCLUDE_EXTLIBS=-lelf EXTRA_PERFLIBS=path/libelf.a Signed-off-by: David Carrillo-Cisneros Acked-by: Jiri Olsa Cc: Alexander Shishkin Cc: Elena Reshetova Cc: Kees Kook Cc: Paul Turner Cc: Stephane Eranian Cc: Sudeep Holla Cc: Wang Nan Link: http://lkml.kernel.org/r/20170719011839.99399-3-davidcc@google.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/Makefile.perf | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index 5008f51a08a2..100a6c1670c8 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefile.perf @@ -33,6 +33,11 @@ include ../scripts/utilities.mak # # Define EXTRA_CFLAGS=-m64 or EXTRA_CFLAGS=-m32 as appropriate for cross-builds. # +# Define EXCLUDE_EXTLIBS=-lmylib to exclude libmylib from the auto-generated +# EXTLIBS. +# +# Define EXTRA_PERFLIBS to pass extra libraries to PERFLIBS. +# # Define NO_DWARF if you do not want debug-info analysis feature at all. # # Define WERROR=0 to disable treating any warnings as errors. @@ -352,7 +357,8 @@ ifdef ASCIIDOC8 export ASCIIDOC8 endif -LIBS = -Wl,--whole-archive $(PERFLIBS) -Wl,--no-whole-archive -Wl,--start-group $(EXTLIBS) -Wl,--end-group +EXTLIBS := $(call filter-out,$(EXCLUDE_EXTLIBS),$(EXTLIBS)) +LIBS = -Wl,--whole-archive $(PERFLIBS) $(EXTRA_PERFLIBS) -Wl,--no-whole-archive -Wl,--start-group $(EXTLIBS) -Wl,--end-group ifeq ($(USE_CLANG), 1) CLANGLIBS_LIST = AST Basic CodeGen Driver Frontend Lex Tooling Edit Sema Analysis Parse Serialization -- 2.9.4