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
--
