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Message-Id: <200808290547.m7T5lgjB016143@wolfmountaingroup.com>
Date: Thu, 28 Aug 2008 23:47:42 -0600
From: jmerkey@...fmountaingroup.com
To: linux-kernel@...r.kernel.org
Subject: [PATCH 2.6.27-rc5 28/29] mdb: add Kconfig.debug sections and documentation
add Kconfig.debug sections and documentation
updated help sections for MAGIC_SYSRQ keyboard support.
Added X86 option restruction for X86 only features.
Signed-off-by: Jeffrey Vernon Merkey (jmerkey@...fmountaingroup.com)
--- a/lib/Kconfig.debug 2008-08-28 14:19:32.000000000 -0600
+++ b/lib/Kconfig.debug 2008-08-28 14:20:04.000000000 -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 && X86
+ 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
--
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