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menu "Kernel hacking"
source "lib/Kconfig.debug"
config DEBUG_STACKOVERFLOW
bool "Check for stack overflows"
depends on DEBUG_KERNEL && PPC64
help
This option will cause messages to be printed if free stack space
drops below a certain limit.
config DEBUG_STACK_USAGE
bool "Stack utilization instrumentation"
depends on DEBUG_KERNEL && PPC64
help
Enables the display of the minimum amount of free stack which each
task has ever had available in the sysrq-T and sysrq-P debug output.
This option will slow down process creation somewhat.
config DEBUGGER
bool "Enable debugger hooks"
depends on DEBUG_KERNEL
help
Include in-kernel hooks for kernel debuggers. Unless you are
intending to debug the kernel, say N here.
config KGDB
bool "Include kgdb kernel debugger"
depends on DEBUGGER && (BROKEN || PPC_GEN550 || 4xx)
select DEBUG_INFO
help
Include in-kernel hooks for kgdb, the Linux kernel source level
debugger. See <http://kgdb.sourceforge.net/> for more information.
Unless you are intending to debug the kernel, say N here.
choice
prompt "Serial Port"
depends on KGDB
default KGDB_TTYS1
config KGDB_TTYS0
bool "ttyS0"
config KGDB_TTYS1
bool "ttyS1"
config KGDB_TTYS2
bool "ttyS2"
config KGDB_TTYS3
bool "ttyS3"
endchoice
config KGDB_CONSOLE
bool "Enable serial console thru kgdb port"
depends on KGDB && 8xx || CPM2
help
If you enable this, all serial console messages will be sent
over the gdb stub.
If unsure, say N.
config XMON
bool "Include xmon kernel debugger"
depends on DEBUGGER && !PPC_ISERIES
help
Include in-kernel hooks for the xmon kernel monitor/debugger.
Unless you are intending to debug the kernel, say N here.
Make sure to enable also CONFIG_BOOTX_TEXT on Macs. Otherwise
nothing will appear on the screen (xmon writes directly to the
framebuffer memory).
The cmdline option 'xmon' or 'xmon=early' will drop into xmon
very early during boot. 'xmon=on' will just enable the xmon
debugger hooks. 'xmon=off' will disable the debugger hooks
if CONFIG_XMON_DEFAULT is set.
config XMON_DEFAULT
bool "Enable xmon by default"
depends on XMON
help
xmon is normally disabled unless booted with 'xmon=on'.
Use 'xmon=off' to disable xmon init during runtime.
config IRQSTACKS
bool "Use separate kernel stacks when processing interrupts"
depends on PPC64
help
If you say Y here the kernel will use separate kernel stacks
for handling hard and soft interrupts. This can help avoid
overflowing the process kernel stacks.
config BDI_SWITCH
bool "Include BDI-2000 user context switcher"
depends on DEBUG_KERNEL && PPC32
help
Include in-kernel support for the Abatron BDI2000 debugger.
Unless you are intending to debug the kernel with one of these
machines, say N here.
config BOOTX_TEXT
bool "Support for early boot text console (BootX or OpenFirmware only)"
depends PPC_OF && !PPC_ISERIES
help
Say Y here to see progress messages from the boot firmware in text
mode. Requires either BootX or Open Firmware.
config SERIAL_TEXT_DEBUG
bool "Support for early boot texts over serial port"
depends on 4xx || LOPEC || MV64X60 || PPLUS || PRPMC800 || \
PPC_GEN550 || PPC_MPC52xx
config PPC_OCP
bool
depends on IBM_OCP || XILINX_OCP
default y
endmenu
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