From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753431AbbE0Pjg (ORCPT ); Wed, 27 May 2015 11:39:36 -0400 Received: from casper.infradead.org ([85.118.1.10]:51957 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753342AbbE0PjV (ORCPT ); Wed, 27 May 2015 11:39:21 -0400 From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, Adrian Hunter , Jiri Olsa , Namhyung Kim , Arnaldo Carvalho de Melo Subject: [PATCH 04/25] perf build: Fix libunwind feature detection on 32-bit x86 Date: Wed, 27 May 2015 12:38:49 -0300 Message-Id: <1432741150-28551-5-git-send-email-acme@kernel.org> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1432741150-28551-1-git-send-email-acme@kernel.org> References: <1432741150-28551-1-git-send-email-acme@kernel.org> X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Adrian Hunter The libunwind feature would never detect because of the following error: $ cat tools/build/feature/test-libunwind.make.output /usr/lib/gcc/i686-linux-gnu/4.8/../../../i386-linux-gnu/libunwind-x86.so: undefined reference to `lzma_stream_buffer_decode' /usr/lib/gcc/i686-linux-gnu/4.8/../../../i386-linux-gnu/libunwind-x86.so: undefined reference to `lzma_index_uncompressed_size' /usr/lib/gcc/i686-linux-gnu/4.8/../../../i386-linux-gnu/libunwind-x86.so: undefined reference to `lzma_index_end' /usr/lib/gcc/i686-linux-gnu/4.8/../../../i386-linux-gnu/libunwind-x86.so: undefined reference to `lzma_index_buffer_decode' /usr/lib/gcc/i686-linux-gnu/4.8/../../../i386-linux-gnu/libunwind-x86.so: undefined reference to `lzma_stream_footer_decode' /usr/lib/gcc/i686-linux-gnu/4.8/../../../i386-linux-gnu/libunwind-x86.so: undefined reference to `lzma_index_size' collect2: error: ld returned 1 exit status Fix by adding -llzma and re-ordering to match the dependencies. Signed-off-by: Adrian Hunter Cc: Jiri Olsa Cc: Namhyung Kim Link: http://lkml.kernel.org/r/1432040746-1755-3-git-send-email-adrian.hunter@intel.com 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 1b957a1272d0..e3b3724e73ff 100644 --- a/tools/perf/config/Makefile +++ b/tools/perf/config/Makefile @@ -32,7 +32,7 @@ ifeq ($(ARCH),x86) LIBUNWIND_LIBS = -lunwind -lunwind-x86_64 $(call detected,CONFIG_X86_64) else - LIBUNWIND_LIBS = -lunwind -lunwind-x86 + LIBUNWIND_LIBS = -lunwind-x86 -llzma -lunwind endif NO_PERF_REGS := 0 endif -- 2.1.0