Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753397Ab2FEJO3 (ORCPT ); Tue, 5 Jun 2012 05:14:29 -0400 Received: from mail-wg0-f44.google.com ([74.125.82.44]:57127 "EHLO mail-wg0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751761Ab2FEJO1 (ORCPT ); Tue, 5 Jun 2012 05:14:27 -0400 MIME-Version: 1.0 From: Hui Zhu Date: Tue, 5 Jun 2012 17:13:44 +0800 Message-ID: Subject: KGTP (Linux Kernel debugger and tracer) 20120605 release(user task memory access and user task stack dump available now) To: linux-kernel@vger.kernel.org, "gdb@sourceware.org" , kgtp Cc: Marc Khouzam , Thiago Jung Bauermann , Steven , colyli@gmail.com, Christoph Hellwig , Geoff Levand , Steven Rostedt , Randy Dunlap , Geunsik Lim , Andi Kleen , Tao Ma 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: 2188 Lines: 54 KGTP is a realtime and lightweight Linux debugger and tracer. To use it, you don't need patch or rebuild the Linux kernel. Just build KGTP module and insmod it is OK. It makes Linux Kernel supply a GDB remote debug interface. Then GDB in current machine or remote machine can debug and trace Linux through GDB tracepoint and some other functions without stopping the Linux Kernel. And even if the board doesn't have GDB on it and doesn't have interface for remote debug. It can debug the Linux Kernel using offline debug (See HOWTO#/sys/kernel/debug/gtpframe_and_offline_debug). KGTP supports X86-32, X86-64, MIPS and ARM. KGTP is tested on Linux kernel 2.6.18 to upstream. And it can work with Android (See http://code.google.com/p/kgtp/wiki/HowToUseKGTPinAndroid). Please go to http://code.google.com/p/kgtp/wiki/HOWTO or http://code.google.com/p/kgtp/wiki/HOWTO (Chinese) to get more info about howto use KGTP. Now, KGTP 20120605 release. You can get the package for it from http://kgtp.googlecode.com/files/kgtp_20120605.tar.bz2 or svn co https://kgtp.googlecode.com/svn/tags/20120605 The main change of this release is: Add new function "Read memory of user space program directly". And use this function will not interrupt this task. Please goto http://code.google.com/p/kgtp/wiki/HOWTO#Read_memory_of_user_space_program_directly to get more info about it. Add new function "collect stack (for backtrace) of user space program in tracepoint". With this function, you can get the stack dump of an user task from user space to Kernel space. Please goto http://code.google.com/p/kgtp/wiki/HOWTO#collect_stack_(for_backtrace)_of_user_space_program_in_tracepoin to get more info about it. Please goto http://code.google.com/p/kgtp/wiki/UPDATE get more info about this release. According to the comments of Christoph, Geoff and Andi. I make lite patch for review. Please goto https://lkml.org/lkml/2012/5/9/90 to see it. Thanks, Hui -- 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/