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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 KPROBES
- bool "Kprobes"
- depends on DEBUG_KERNEL && PPC64
- help
- Kprobes allows you to trap at almost any kernel address and
- execute a callback function. register_kprobe() establishes
- a probepoint and specifies the callback. Kprobes is useful
- for kernel debugging, non-intrusive instrumentation and testing.
- If in doubt, say "N".
- 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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