From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 63717C67863 for ; Mon, 22 Oct 2018 13:58:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id ADF6920651 for ; Mon, 22 Oct 2018 13:58:18 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org ADF6920651 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728298AbeJVWRA (ORCPT ); Mon, 22 Oct 2018 18:17:00 -0400 Received: from mga06.intel.com ([134.134.136.31]:50867 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728216AbeJVWRA (ORCPT ); Mon, 22 Oct 2018 18:17:00 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 22 Oct 2018 06:58:17 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,412,1534834800"; d="scan'208";a="83456209" Received: from tassilo.jf.intel.com (HELO tassilo.localdomain) ([10.7.201.126]) by orsmga008.jf.intel.com with ESMTP; 22 Oct 2018 06:58:17 -0700 Received: by tassilo.localdomain (Postfix, from userid 1000) id 9EAD0301004; Mon, 22 Oct 2018 06:58:17 -0700 (PDT) From: Andi Kleen To: Milian Wolff Cc: Milian Wolff , linux-kernel@vger.kernel.org, Jiri Olsa , namhyung@kernel.org, linux-perf-users@vger.kernel.org, Arnaldo Carvalho Subject: Re: Broken dwarf unwinding - wrong stack pointer register value? References: <2335309.gnWok9HYb4@agathebauer> <3129539.p6j0Z5hDSJ@agathebauer> <1775744.0RuD2nMEIt@agathebauer> Date: Mon, 22 Oct 2018 06:58:17 -0700 In-Reply-To: <1775744.0RuD2nMEIt@agathebauer> (Milian Wolff's message of "Mon, 22 Oct 2018 13:17:42 +0200") Message-ID: <87o9bmrsli.fsf@linux.intel.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Milian Wolff writes: > > After more digging, it turns out that I've apparently chased a red herring. > I'm running archlinux which isn't shipping debug symbols for libm. 64bit executables normally have unwind information even when stripped. Unless someone forcefully stripped those too. You can checkout with objdump --sections. -Andi