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 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 DEBUG_PAGEALLOC
+ bool "Debug page memory allocations"
+ depends on DEBUG_KERNEL && !SOFTWARE_SUSPEND
+ help
+ Unmap pages from the kernel linear mapping after free_pages().
+ This results in a large slowdown, but helps to find certain types
+ of memory corruptions.
+
+
+config HCALL_STATS
+ bool "Hypervisor call instrumentation"
+ depends on PPC_PSERIES && DEBUG_FS
+ help
+ Adds code to keep track of the number of hypervisor calls made and
+ the amount of time spent in hypervisor calls. Wall time spent in
+ each call is always calculated, and if available CPU cycles spent
+ are also calculated. A directory named hcall_inst is added at the
+ root of the debugfs filesystem. Within the hcall_inst directory
+ are files that contain CPU specific call statistics.
+
+ This option will add a small amount of overhead to all hypervisor
+ calls.
+
+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 DEBUG_KERNEL && (BROKEN || PPC_GEN550 || 4xx)
+ depends on DEBUGGER && (BROKEN || PPC_GEN550 || 4xx)
select DEBUG_INFO
help
Include in-kernel hooks for kgdb, the Linux kernel source level
config XMON
bool "Include xmon kernel debugger"
- depends on DEBUG_KERNEL
+ depends on DEBUGGER
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.
+ xmon will print a backtrace on the very first invocation.
+ 'xmon=nobt' will disable this autobacktrace.
+
+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 XMON_DISASSEMBLY
+ bool "Include disassembly support in xmon"
+ depends on XMON
+ default y
+ help
+ Include support for disassembling in xmon. You probably want
+ to say Y here, unless you're building for a memory-constrained
+ system.
+
+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
+ 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
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_EARLY_DEBUG
+ bool "Early debugging (dangerous)"
-config PPC_OCP
- bool
- depends on IBM_OCP || XILINX_OCP
- default y
+choice
+ prompt "Early debugging console"
+ depends on PPC_EARLY_DEBUG
+ help
+ Use the selected console for early debugging. Careful, if you
+ enable debugging for the wrong type of machine your kernel
+ _will not boot_.
+
+config PPC_EARLY_DEBUG_LPAR
+ bool "LPAR HV Console"
+ depends on PPC_PSERIES
+ help
+ Select this to enable early debugging for a machine with a HVC
+ console on vterm 0.
+
+config PPC_EARLY_DEBUG_G5
+ bool "Apple G5"
+ depends on PPC_PMAC64
+ help
+ Select this to enable early debugging for Apple G5 machines.
+
+config PPC_EARLY_DEBUG_RTAS_PANEL
+ bool "RTAS Panel"
+ depends on PPC_RTAS
+ help
+ Select this to enable early debugging via the RTAS panel.
+
+config PPC_EARLY_DEBUG_RTAS_CONSOLE
+ bool "RTAS Console"
+ depends on PPC_RTAS
+ select UDBG_RTAS_CONSOLE
+ help
+ Select this to enable early debugging via the RTAS console.
+
+config PPC_EARLY_DEBUG_MAPLE
+ bool "Maple real mode"
+ depends on PPC_MAPLE
+ help
+ Select this to enable early debugging for Maple.
+
+config PPC_EARLY_DEBUG_ISERIES
+ bool "iSeries HV Console"
+ depends on PPC_ISERIES
+ help
+ Select this to enable early debugging for legacy iSeries. You need
+ to hit "Ctrl-x Ctrl-x" to see the messages on the console.
+
+config PPC_EARLY_DEBUG_PAS_REALMODE
+ bool "PA Semi real mode"
+ depends on PPC_PASEMI
+ help
+ Select this to enable early debugging for PA Semi.
+ Output will be on UART0.
+
+config PPC_EARLY_DEBUG_BEAT
+ bool "Beat HV Console"
+ depends on PPC_CELLEB
+ select PPC_UDBG_BEAT
+ help
+ Select this to enable early debugging for Celleb with Beat.
+
+config PPC_EARLY_DEBUG_44x
+ bool "Early serial debugging for IBM/AMCC 44x CPUs"
+ depends on 44x
+ select PPC_UDBG_16550
+ help
+ Select this to enable early debugging for IBM 44x chips via the
+ inbuilt serial port.
+
+endchoice
+
+config PPC_EARLY_DEBUG_44x_PHYSLOW
+ hex "Low 32 bits of early debug UART physical address"
+ depends PPC_EARLY_DEBUG_44x
+ default "0x40000200"
+
+config PPC_EARLY_DEBUG_44x_PHYSHIGH
+ hex "EPRN of early debug UART physical address"
+ depends PPC_EARLY_DEBUG_44x
+ default "0x1"
endmenu
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff