| menu "Kernel hacking" | |
| source "lib/Kconfig.debug" | |
| config SH_STANDARD_BIOS | |
| bool "Use LinuxSH standard BIOS" | |
| help | |
| Say Y here if your target has the gdb-sh-stub | |
| package from www.m17n.org (or any conforming standard LinuxSH BIOS) | |
| in FLASH or EPROM. The kernel will use standard BIOS calls during | |
| boot for various housekeeping tasks (including calls to read and | |
| write characters to a system console, get a MAC address from an | |
| on-board Ethernet interface, and shut down the hardware). Note this | |
| does not work with machines with an existing operating system in | |
| mask ROM and no flash (WindowsCE machines fall in this category). | |
| If unsure, say N. | |
| config EARLY_SCIF_CONSOLE | |
| bool "Use early SCIF console" | |
| depends on CPU_SH4 || CPU_SH2A && !SH_STANDARD_BIOS | |
| config EARLY_PRINTK | |
| bool "Early printk support" | |
| depends on SH_STANDARD_BIOS || EARLY_SCIF_CONSOLE | |
| help | |
| Say Y here to redirect kernel printk messages to the serial port | |
| used by the SH-IPL bootloader, starting very early in the boot | |
| process and ending when the kernel's serial console is initialised. | |
| This option is only useful porting the kernel to a new machine, | |
| when the kernel may crash or hang before the serial console is | |
| initialised. If unsure, say N. | |
| 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 4KSTACKS | |
| bool "Use 4Kb for kernel stacks instead of 8Kb" | |
| depends on DEBUG_KERNEL | |
| help | |
| If you say Y here the kernel will use a 4Kb stacksize for the | |
| kernel stack attached to each process/thread. This facilitates | |
| running more threads on a system and also reduces the pressure | |
| on the VM subsystem for higher order allocations. This option | |
| will also use IRQ stacks to compensate for the reduced stackspace. | |
| config KGDB | |
| bool "Include KGDB kernel debugger" | |
| select FRAME_POINTER | |
| 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. | |
| menu "KGDB configuration options" | |
| depends on KGDB | |
| config MORE_COMPILE_OPTIONS | |
| bool "Add any additional compile options" | |
| help | |
| If you want to add additional CFLAGS to the kernel build, enable this | |
| option and then enter what you would like to add in the next question. | |
| Note however that -g is already appended with the selection of KGDB. | |
| config COMPILE_OPTIONS | |
| string "Additional compile arguments" | |
| depends on MORE_COMPILE_OPTIONS | |
| config KGDB_NMI | |
| bool "Enter KGDB on NMI" | |
| default n | |
| config KGDB_THREAD | |
| bool "Include KGDB thread support" | |
| default y | |
| config SH_KGDB_CONSOLE | |
| bool "Console messages through GDB" | |
| default n | |
| config KGDB_SYSRQ | |
| bool "Allow SysRq 'G' to enter KGDB" | |
| default y | |
| config KGDB_KERNEL_ASSERTS | |
| bool "Include KGDB kernel assertions" | |
| default n | |
| comment "Serial port setup" | |
| config KGDB_DEFPORT | |
| int "Port number (ttySCn)" | |
| default "1" | |
| config KGDB_DEFBAUD | |
| int "Baud rate" | |
| default "115200" | |
| choice | |
| prompt "Parity" | |
| depends on KGDB | |
| default KGDB_DEFPARITY_N | |
| config KGDB_DEFPARITY_N | |
| bool "None" | |
| config KGDB_DEFPARITY_E | |
| bool "Even" | |
| config KGDB_DEFPARITY_O | |
| bool "Odd" | |
| endchoice | |
| choice | |
| prompt "Data bits" | |
| depends on KGDB | |
| default KGDB_DEFBITS_8 | |
| config KGDB_DEFBITS_8 | |
| bool "8" | |
| config KGDB_DEFBITS_7 | |
| bool "7" | |
| endchoice | |
| endmenu | |
| endmenu |