From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnaldo Carvalho de Melo Subject: [PATCH 15/15] perf tools: Fix static linking with libunwind Date: Wed, 23 Aug 2017 16:36:14 -0300 Message-ID: <20170823193614.20394-16-acme@kernel.org> References: <20170823193614.20394-1-acme@kernel.org> Return-path: Received: from mail.kernel.org ([198.145.29.99]:60874 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932898AbdHWThH (ORCPT ); Wed, 23 Aug 2017 15:37:07 -0400 In-Reply-To: <20170823193614.20394-1-acme@kernel.org> Sender: linux-perf-users-owner@vger.kernel.org List-ID: To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, Konstantin Khlebnikov , Alexander Shishkin , Peter Zijlstra , Arnaldo Carvalho de Melo From: Konstantin Khlebnikov * libunwind-x86_64 must be linked before libunwind * libunwind requires liblzma * static libunwind conflicts with static libgcc_eh Signed-off-by: Konstantin Khlebnikov Cc: Alexander Shishkin Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/150322917247.129799.14247751517961953155.stgit@buzz Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/Makefile.config | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config index bb4735b92ada..6a64c6bbd9a5 100644 --- a/tools/perf/Makefile.config +++ b/tools/perf/Makefile.config @@ -35,7 +35,7 @@ ifeq ($(SRCARCH),x86) ifeq (${IS_64_BIT}, 1) CFLAGS += -DHAVE_ARCH_X86_64_SUPPORT -DHAVE_SYSCALL_TABLE -I$(OUTPUT)arch/x86/include/generated ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S ../../arch/x86/lib/memset_64.S - LIBUNWIND_LIBS = -lunwind -lunwind-x86_64 + LIBUNWIND_LIBS = -lunwind-x86_64 -lunwind -llzma $(call detected,CONFIG_X86_64) else LIBUNWIND_LIBS = -lunwind-x86 -llzma -lunwind @@ -505,6 +505,10 @@ ifndef NO_LOCAL_LIBUNWIND EXTLIBS += $(LIBUNWIND_LIBS) LDFLAGS += $(LIBUNWIND_LIBS) endif +ifeq ($(findstring -static,${LDFLAGS}),-static) + # gcc -static links libgcc_eh which contans piece of libunwind + LIBUNWIND_LDFLAGS += -Wl,--allow-multiple-definition +endif ifndef NO_LIBUNWIND CFLAGS += -DHAVE_LIBUNWIND_SUPPORT -- 2.13.5