| menu "Kernel hacking" |
| |
| source "lib/Kconfig.debug" |
| |
| config DEBUG_STACKOVERFLOW |
| bool "Check for stack overflows" |
| depends on DEBUG_KERNEL |
| 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 |
| 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 |
| 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 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 PPCDBG |
| bool "Include PPCDBG realtime debugging" |
| depends on DEBUG_KERNEL |
| |
| config IRQSTACKS |
| bool "Use separate kernel stacks when processing interrupts" |
| 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. |
| |
| endmenu |
