From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760049AbdAJKXE (ORCPT ); Tue, 10 Jan 2017 05:23:04 -0500 Received: from foss.arm.com ([217.140.101.70]:47702 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754015AbdAJKXD (ORCPT ); Tue, 10 Jan 2017 05:23:03 -0500 From: Sudeep Holla To: linux-kernel@vger.kernel.org, Arnaldo Carvalho de Melo Cc: Sudeep Holla , Jiri Olsa , Peter Zijlstra , Ingo Molnar , Stephane Eranian Subject: [PATCH 1/2] tools: perf: fix linker error when libelf config is disabled Date: Tue, 10 Jan 2017 10:22:49 +0000 Message-Id: <1484043770-13206-1-git-send-email-sudeep.holla@arm.com> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org When libelf is disabled in the configuration, we get the following linker error: LINK libperf-jvmti.so ld: cannot find -lelf Makefile.perf:515: recipe for target 'libperf-jvmti.so' failed Jiri pointed out that both librt and libelf are not really required. So this patch fixes the linker error by getting rid of unwanted libraries in the linker stage. Fixes: 209045adc2bb ("perf tools: add JVMTI agent library") Acked-by: Jiri Olsa Cc: Peter Zijlstra Cc: Ingo Molnar Cc: Stephane Eranian Signed-off-by: Sudeep Holla --- tools/perf/Makefile.perf | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index 8fc24824705e..9e4a7ea84637 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefile.perf @@ -512,7 +512,7 @@ $(LIBJVMTI_IN): FORCE $(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=jvmti obj=jvmti $(OUTPUT)$(LIBJVMTI): $(LIBJVMTI_IN) - $(QUIET_LINK)$(CC) -shared -Wl,-soname -Wl,$(LIBJVMTI) -o $@ $< -lelf -lrt + $(QUIET_LINK)$(CC) -shared -Wl,-soname -Wl,$(LIBJVMTI) -o $@ $< endif $(patsubst perf-%,%.o,$(PROGRAMS)): $(wildcard */*.h) -- 2.7.4