1menu "Kernel hacking" 2 3source "lib/Kconfig.debug" 4 5config SH_STANDARD_BIOS 6 bool "Use LinuxSH standard BIOS" 7 help 8 Say Y here if your target has the gdb-sh-stub 9 package from www.m17n.org (or any conforming standard LinuxSH BIOS) 10 in FLASH or EPROM. The kernel will use standard BIOS calls during 11 boot for various housekeeping tasks (including calls to read and 12 write characters to a system console, get a MAC address from an 13 on-board Ethernet interface, and shut down the hardware). Note this 14 does not work with machines with an existing operating system in 15 mask ROM and no flash (WindowsCE machines fall in this category). 16 If unsure, say N. 17 18config EARLY_SCIF_CONSOLE 19 bool "Use early SCIF console" 20 depends on CPU_SH4 || CPU_SH2A && !SH_STANDARD_BIOS 21 22config EARLY_PRINTK 23 bool "Early printk support" 24 depends on SH_STANDARD_BIOS || EARLY_SCIF_CONSOLE 25 help 26 Say Y here to redirect kernel printk messages to the serial port 27 used by the SH-IPL bootloader, starting very early in the boot 28 process and ending when the kernel's serial console is initialised. 29 This option is only useful porting the kernel to a new machine, 30 when the kernel may crash or hang before the serial console is 31 initialised. If unsure, say N. 32 33config KGDB 34 bool "Include KGDB kernel debugger" 35 help 36 Include in-kernel hooks for kgdb, the Linux kernel source level 37 debugger. See <http://kgdb.sourceforge.net/> for more information. 38 Unless you are intending to debug the kernel, say N here. 39 40menu "KGDB configuration options" 41 depends on KGDB 42 43config MORE_COMPILE_OPTIONS 44 bool "Add any additional compile options" 45 help 46 If you want to add additional CFLAGS to the kernel build, enable this 47 option and then enter what you would like to add in the next question. 48 Note however that -g is already appended with the selection of KGDB. 49 50config COMPILE_OPTIONS 51 string "Additional compile arguments" 52 depends on MORE_COMPILE_OPTIONS 53 54config KGDB_NMI 55 bool "Enter KGDB on NMI" 56 default n 57 58config KGDB_THREAD 59 bool "Include KGDB thread support" 60 default y 61 62config SH_KGDB_CONSOLE 63 bool "Console messages through GDB" 64 default n 65 66config KGDB_SYSRQ 67 bool "Allow SysRq 'G' to enter KGDB" 68 default y 69 70config KGDB_KERNEL_ASSERTS 71 bool "Include KGDB kernel assertions" 72 default n 73 74comment "Serial port setup" 75 76config KGDB_DEFPORT 77 int "Port number (ttySCn)" 78 default "1" 79 80config KGDB_DEFBAUD 81 int "Baud rate" 82 default "115200" 83 84choice 85 prompt "Parity" 86 depends on KGDB 87 default KGDB_DEFPARITY_N 88 89config KGDB_DEFPARITY_N 90 bool "None" 91 92config KGDB_DEFPARITY_E 93 bool "Even" 94 95config KGDB_DEFPARITY_O 96 bool "Odd" 97 98endchoice 99 100choice 101 prompt "Data bits" 102 depends on KGDB 103 default KGDB_DEFBITS_8 104 105config KGDB_DEFBITS_8 106 bool "8" 107 108config KGDB_DEFBITS_7 109 bool "7" 110 111endchoice 112 113endmenu 114 115config FRAME_POINTER 116 bool "Compile the kernel with frame pointers" 117 default y if KGDB 118 help 119 If you say Y here the resulting kernel image will be slightly larger 120 and slower, but it will give very useful debugging information. 121 If you don't debug the kernel, you can say N, but we may not be able 122 to solve problems without frame pointers. 123 124endmenu 125