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- menu "Kernel hacking"
- config TRACE_IRQFLAGS_SUPPORT
- bool
- default y
- 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"
- help
- This enables an early console using a fixed SCIF port. This can
- be used by platforms that are either not running the SH
- standard BIOS, or do not wish to use the BIOS callbacks for the
- serial I/O.
- config EARLY_SCIF_CONSOLE_PORT
- hex
- depends on EARLY_SCIF_CONSOLE
- default "0xffe00000" if CPU_SUBTYPE_SH7780
- default "0xffea0000" if CPU_SUBTYPE_SH7785
- default "0xfffe9800" if CPU_SUBTYPE_SH7206
- default "0xf8420000" if CPU_SUBTYPE_SH7619
- default "0xa4400000" if CPU_SUBTYPE_SH7712 || CPU_SUBTYPE_SH7705
- default "0xa4430000" if CPU_SUBTYPE_SH7720
- default "0xffc30000" if CPU_SUBTYPE_SHX3
- default "0xffe80000" if CPU_SH4
- default "0x00000000"
- 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.
- On devices that are running SH-IPL and want to keep the port
- initialization consistent while not using the BIOS callbacks,
- select both the EARLY_SCIF_CONSOLE and SH_STANDARD_BIOS, using
- the kernel command line option to toggle back and forth.
- config DEBUG_BOOTMEM
- depends on DEBUG_KERNEL
- bool "Debug BOOTMEM initialization"
- 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 IRQSTACKS
- bool "Use separate kernel stacks when processing interrupts"
- depends on DEBUG_KERNEL
- 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 SH_KGDB
- bool "Include KGDB kernel debugger"
- select FRAME_POINTER
- select DEBUG_INFO
- depends on CPU_SH3 || CPU_SH4
- 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 SH_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 SH_KGDB_CONSOLE
- bool "Console messages through GDB"
- depends on !SERIAL_SH_SCI_CONSOLE && SERIAL_SH_SCI=y
- select SERIAL_CORE_CONSOLE
- default n
- config KGDB_SYSRQ
- bool "Allow SysRq 'G' to enter KGDB"
- depends on MAGIC_SYSRQ
- default y
- 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 SH_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 SH_KGDB
- default KGDB_DEFBITS_8
- config KGDB_DEFBITS_8
- bool "8"
- config KGDB_DEFBITS_7
- bool "7"
- endchoice
- endmenu
- endmenu
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