Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751418Ab3IJTiw (ORCPT ); Tue, 10 Sep 2013 15:38:52 -0400 Received: from mail-ve0-f179.google.com ([209.85.128.179]:51838 "EHLO mail-ve0-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750899Ab3IJTiu (ORCPT ); Tue, 10 Sep 2013 15:38:50 -0400 MIME-Version: 1.0 In-Reply-To: <522F6F96.8030803@gmail.com> References: <1378720815-23964-1-git-send-email-jean.pihet@linaro.org> <1378720815-23964-4-git-send-email-jean.pihet@linaro.org> <522F6F96.8030803@gmail.com> Date: Tue, 10 Sep 2013 21:38:49 +0200 Message-ID: Subject: Re: [PATCH 3/3] perf: parse the .debug_frame section in case .eh_frame is not present From: Jean Pihet To: David Ahern Cc: Will Deacon , Jiri Olsa , "linux-kernel@vger.kernel.org" , "linaro-kernel@lists.linaro.org" , "linux-arm-kernel@lists.infradead.org" , Patch Tracking Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1340 Lines: 35 On 10 September 2013 21:14, David Ahern wrote: > On 9/9/13 3:00 AM, Jean Pihet wrote: >> >> diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile >> index 7014373..54532b8 100644 >> --- a/tools/perf/config/Makefile >> +++ b/tools/perf/config/Makefile >> @@ -222,7 +222,7 @@ endif >> >> FLAGS_UNWIND=$(LIBUNWIND_CFLAGS) $(CFLAGS) $(LIBUNWIND_LDFLAGS) >> $(LDFLAGS) $(EXTLIBS) $(LIBUNWIND_LIBS) >> ifneq ($(call try-cc,$(SOURCE_LIBUNWIND),$(FLAGS_UNWIND),libunwind),y) >> - msg := $(warning No libunwind found, disabling post unwind support. >> Please install libunwind-dev[el] >= 0.99); >> + msg := $(warning No libunwind found, disabling post unwind support. >> Please install libunwind-dev[el] >= 1.1); >> NO_LIBUNWIND := 1 >> endif # Libunwind support >> endif # NO_LIBUNWIND > > > Is the 1.1 version required for x86 too? Yes if the dwarf unwinding feature is used. I know it is not in use on x86 as of now but could be in the future since the dwarf info brings more details in the trace, cf. http://lwn.net/Articles/499116/. > > David Jean -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/