| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | menu "Kernel hacking" |
| 2 | |
| 3 | source "lib/Kconfig.debug" |
| 4 | |
| 5 | config 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 | |
| 18 | config EARLY_SCIF_CONSOLE |
| 19 | bool "Use early SCIF console" |
| Paul Mundt | cad8244 | 2006-01-16 22:14:19 -0800 | [diff] [blame] | 20 | depends on CPU_SH4 || CPU_SH2A && !SH_STANDARD_BIOS |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 21 | |
| 22 | config 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 | |
| Paul Mundt | d153ea8 | 2006-09-27 18:20:16 +0900 | [diff] [blame] | 33 | config DEBUG_STACKOVERFLOW |
| 34 | bool "Check for stack overflows" |
| 35 | depends on DEBUG_KERNEL |
| 36 | help |
| 37 | This option will cause messages to be printed if free stack space |
| 38 | drops below a certain limit. |
| 39 | |
| 40 | config DEBUG_STACK_USAGE |
| 41 | bool "Stack utilization instrumentation" |
| 42 | depends on DEBUG_KERNEL |
| 43 | help |
| 44 | Enables the display of the minimum amount of free stack which each |
| 45 | task has ever had available in the sysrq-T and sysrq-P debug output. |
| 46 | |
| 47 | This option will slow down process creation somewhat. |
| 48 | |
| Paul Mundt | a6a31139 | 2006-09-27 18:22:14 +0900 | [diff] [blame] | 49 | config 4KSTACKS |
| 50 | bool "Use 4Kb for kernel stacks instead of 8Kb" |
| 51 | depends on DEBUG_KERNEL |
| 52 | help |
| 53 | If you say Y here the kernel will use a 4Kb stacksize for the |
| 54 | kernel stack attached to each process/thread. This facilitates |
| 55 | running more threads on a system and also reduces the pressure |
| 56 | on the VM subsystem for higher order allocations. This option |
| 57 | will also use IRQ stacks to compensate for the reduced stackspace. |
| 58 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 59 | config KGDB |
| 60 | bool "Include KGDB kernel debugger" |
| Paul Mundt | 2549b32 | 2006-09-27 16:22:33 +0900 | [diff] [blame] | 61 | select FRAME_POINTER |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 62 | help |
| 63 | Include in-kernel hooks for kgdb, the Linux kernel source level |
| 64 | debugger. See <http://kgdb.sourceforge.net/> for more information. |
| 65 | Unless you are intending to debug the kernel, say N here. |
| 66 | |
| 67 | menu "KGDB configuration options" |
| 68 | depends on KGDB |
| 69 | |
| 70 | config MORE_COMPILE_OPTIONS |
| 71 | bool "Add any additional compile options" |
| 72 | help |
| 73 | If you want to add additional CFLAGS to the kernel build, enable this |
| 74 | option and then enter what you would like to add in the next question. |
| 75 | Note however that -g is already appended with the selection of KGDB. |
| 76 | |
| 77 | config COMPILE_OPTIONS |
| 78 | string "Additional compile arguments" |
| 79 | depends on MORE_COMPILE_OPTIONS |
| 80 | |
| 81 | config KGDB_NMI |
| 82 | bool "Enter KGDB on NMI" |
| 83 | default n |
| 84 | |
| 85 | config KGDB_THREAD |
| 86 | bool "Include KGDB thread support" |
| 87 | default y |
| 88 | |
| 89 | config SH_KGDB_CONSOLE |
| 90 | bool "Console messages through GDB" |
| 91 | default n |
| 92 | |
| 93 | config KGDB_SYSRQ |
| 94 | bool "Allow SysRq 'G' to enter KGDB" |
| 95 | default y |
| 96 | |
| 97 | config KGDB_KERNEL_ASSERTS |
| 98 | bool "Include KGDB kernel assertions" |
| 99 | default n |
| 100 | |
| 101 | comment "Serial port setup" |
| 102 | |
| 103 | config KGDB_DEFPORT |
| 104 | int "Port number (ttySCn)" |
| 105 | default "1" |
| 106 | |
| 107 | config KGDB_DEFBAUD |
| 108 | int "Baud rate" |
| 109 | default "115200" |
| 110 | |
| 111 | choice |
| 112 | prompt "Parity" |
| 113 | depends on KGDB |
| 114 | default KGDB_DEFPARITY_N |
| 115 | |
| 116 | config KGDB_DEFPARITY_N |
| 117 | bool "None" |
| 118 | |
| 119 | config KGDB_DEFPARITY_E |
| 120 | bool "Even" |
| 121 | |
| 122 | config KGDB_DEFPARITY_O |
| 123 | bool "Odd" |
| 124 | |
| 125 | endchoice |
| 126 | |
| 127 | choice |
| 128 | prompt "Data bits" |
| 129 | depends on KGDB |
| 130 | default KGDB_DEFBITS_8 |
| 131 | |
| 132 | config KGDB_DEFBITS_8 |
| 133 | bool "8" |
| 134 | |
| 135 | config KGDB_DEFBITS_7 |
| 136 | bool "7" |
| 137 | |
| 138 | endchoice |
| 139 | |
| 140 | endmenu |
| 141 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 142 | endmenu |