From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758771AbYHUDY0 (ORCPT ); Wed, 20 Aug 2008 23:24:26 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756905AbYHUDQm (ORCPT ); Wed, 20 Aug 2008 23:16:42 -0400 Received: from 166-70-238-42.ip.xmission.com ([166.70.238.42]:50100 "EHLO ns1.wolfmountaingroup.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755879AbYHUDQK (ORCPT ); Wed, 20 Aug 2008 23:16:10 -0400 Date: Wed, 20 Aug 2008 20:50:37 -0600 From: jmerkey@wolfmountaingroup.com Message-Id: <200808210250.m7L2obvH028351@wolfmountaingroup.com> To: linux-kernel@vger.kernel.org Subject: [PATCH 2.6.27-rc4 26/27] mdb: add Kconfig.debug sections and documentation Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org add Kconfig.debug sections and documentation add help sections for MAGIC_SYSRQ keyboard support. Signed-off-by: Jeffrey Vernon Merkey (jmerkey@wolfmountaingroup.com) --- a/lib/Kconfig.debug 2008-08-19 14:10:50.000000000 -0600 +++ b/lib/Kconfig.debug 2008-08-19 21:59:34.000000000 -0600 @@ -134,6 +134,43 @@ Say Y here if you are developing drivers or trying to debug and identify kernel problems. +config MDB + tristate "Merkey's Kernel Debugger" + depends on DEBUG_KERNEL + select MAGIC_SYSRQ + select KALLSYMS + select KALLSYMS_ALL + default m + help + Kernel Debugger for Linux written by Jeffrey Vernon + Merkey. 'echo j > /proc/sysrq-trigger' will activate the + debugger from the text based Linux Console, and the 'j' + character (alt-printscreen/sysrq + 'j') with MAGIC_SYSRQ + enabled to enter the debugger. X is not supported. + This debugger is minimal and text based. Excellent help can + be obtained from the debugger by typing "Help Help" or + "help" from the debugger command console. If you compiled + MDB as a module you may need to load the debugger with + the 'modprobe mdb' before you can access the debugger + from the Linux Console. To enable the MAGIC-SYSRQ key + type 'echo 1 > /proc/sys/kernel/sysrq'. + +config MDB_CONSOLE_REDIRECTION + bool "MDB Console Redirection Support" + depends on MDB + default y + help + Reset any Console Redirection to default system settings (0) + when the MDB debugger is active. The Debugger will restore + the redirection to the custom settings when the debugger + is exited. This feature is useful on systems which by default + redirect printk output and the screen debugger output to a log + file or system device, which can prevent the debugger screen from + being visible. Enabling this feature does not affect or disable + remote operations via serial port. It is recommended to enable + this feature by default if intensive debugging is intended for + the target system. + config DEBUG_SHIRQ bool "Debug shared IRQ handlers" depends on DEBUG_KERNEL && GENERIC_HARDIRQS