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=-7.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,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 5A2FAC433E0 for ; Mon, 22 Jun 2020 12:33:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3797120716 for ; Mon, 22 Jun 2020 12:33:55 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=yandex-team.ru header.i=@yandex-team.ru header.b="U6DfDEq2" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728218AbgFVMdy (ORCPT ); Mon, 22 Jun 2020 08:33:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39190 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728044AbgFVMdw (ORCPT ); Mon, 22 Jun 2020 08:33:52 -0400 Received: from forwardcorp1p.mail.yandex.net (forwardcorp1p.mail.yandex.net [IPv6:2a02:6b8:0:1472:2741:0:8b6:217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8E269C061794 for ; Mon, 22 Jun 2020 05:33:52 -0700 (PDT) Received: from mxbackcorp1o.mail.yandex.net (mxbackcorp1o.mail.yandex.net [IPv6:2a02:6b8:0:1a2d::301]) by forwardcorp1p.mail.yandex.net (Yandex) with ESMTP id 775B02E155D; Mon, 22 Jun 2020 15:33:49 +0300 (MSK) Received: from vla5-58875c36c028.qloud-c.yandex.net (vla5-58875c36c028.qloud-c.yandex.net [2a02:6b8:c18:340b:0:640:5887:5c36]) by mxbackcorp1o.mail.yandex.net (mxbackcorp/Yandex) with ESMTP id ECjH23KgHz-XmaWJMGG; Mon, 22 Jun 2020 15:33:49 +0300 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex-team.ru; s=default; t=1592829229; bh=mK+g03fVwj0jzU22S9yPTNGpUpPC10EpoJBdwk9JdEc=; h=Message-ID:References:Date:To:From:Subject:In-Reply-To; b=U6DfDEq2cscfPN2gk6XxwElUWQuwEWyQC/pPGZT2tfdmTFH1w/QdOB5NnpKw+4cnc SnulZ0MTM8vNqQ8OFePhqlD3GdPsJlt8xZefTuSGwV0w1zi+AKJm447Te/FFhb0Xji lOcgZRES+mftKo9dM94qujqBupPZpKdcte5KYEiU= Authentication-Results: mxbackcorp1o.mail.yandex.net; dkim=pass header.i=@yandex-team.ru Received: from dynamic-vpn.dhcp.yndx.net (dynamic-vpn.dhcp.yndx.net [2a02:6b8:b081:14::1:13]) by vla5-58875c36c028.qloud-c.yandex.net (smtpcorp/Yandex) with ESMTPSA id bm7jXTbos2-XmkWwdd1; Mon, 22 Jun 2020 15:33:48 +0300 (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (Client certificate not present) Subject: [PATCH 2/4] scripts/decode_stacktrace: guess basepath if not specified From: Konstantin Khlebnikov To: linux-kernel@vger.kernel.org, Sasha Levin , Andrew Morton Date: Mon, 22 Jun 2020 15:33:48 +0300 Message-ID: <159282922803.248444.2379229451667913634.stgit@buzz> In-Reply-To: <159282922499.248444.4883465570858385250.stgit@buzz> References: <159282922499.248444.4883465570858385250.stgit@buzz> User-Agent: StGit/0.22-39-gd257 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Guess path to kernel sources using known location of symbol "kernel_init". Make basepath argument optional. Before: $ echo 'vfs_open+0x0/0x0' | ./scripts/decode_stacktrace.sh vmlinux "" vfs_open (home/khlebnikov/src/linux/fs/open.c:912) After: $ echo 'vfs_open+0x0/0x0' | ./scripts/decode_stacktrace.sh vmlinux vfs_open (fs/open.c:912) Signed-off-by: Konstantin Khlebnikov --- scripts/decode_stacktrace.sh | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/scripts/decode_stacktrace.sh b/scripts/decode_stacktrace.sh index 6ec8d6dff86c..b1b85a7b2115 100755 --- a/scripts/decode_stacktrace.sh +++ b/scripts/decode_stacktrace.sh @@ -3,14 +3,14 @@ # (c) 2014, Sasha Levin #set -x -if [[ $# < 2 ]]; then +if [[ $# < 1 ]]; then echo "Usage:" - echo " $0 [vmlinux] [base path] [modules path]" + echo " $0 [base path] [modules path]" exit 1 fi vmlinux=$1 -basepath=$2 +basepath=${2-auto} modpath=$3 declare -A cache declare -A modcache @@ -152,6 +152,14 @@ handle_line() { echo "${words[@]}" "$symbol $module" } +if [[ $basepath == "auto" ]] ; then + module="" + symbol="kernel_init+0x0/0x0" + parse_symbol + basepath=${symbol#kernel_init (} + basepath=${basepath%/init/main.c:*)} +fi + while read line; do # Let's see if we have an address in the line if [[ $line =~ \[\<([^]]+)\>\] ]] ||