Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | menu "Kernel hacking" |
| 2 | |
Paul Mundt | afbfb52 | 2006-12-04 18:17:28 +0900 | [diff] [blame] | 3 | config TRACE_IRQFLAGS_SUPPORT |
| 4 | bool |
| 5 | default y |
| 6 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | source "lib/Kconfig.debug" |
| 8 | |
| 9 | config SH_STANDARD_BIOS |
| 10 | bool "Use LinuxSH standard BIOS" |
| 11 | help |
| 12 | Say Y here if your target has the gdb-sh-stub |
| 13 | package from www.m17n.org (or any conforming standard LinuxSH BIOS) |
| 14 | in FLASH or EPROM. The kernel will use standard BIOS calls during |
| 15 | boot for various housekeeping tasks (including calls to read and |
| 16 | write characters to a system console, get a MAC address from an |
| 17 | on-board Ethernet interface, and shut down the hardware). Note this |
| 18 | does not work with machines with an existing operating system in |
| 19 | mask ROM and no flash (WindowsCE machines fall in this category). |
| 20 | If unsure, say N. |
| 21 | |
| 22 | config EARLY_SCIF_CONSOLE |
| 23 | bool "Use early SCIF console" |
Paul Mundt | 6fc21b8 | 2006-11-27 12:10:23 +0900 | [diff] [blame] | 24 | help |
| 25 | This enables an early console using a fixed SCIF port. This can |
| 26 | be used by platforms that are either not running the SH |
| 27 | standard BIOS, or do not wish to use the BIOS callbacks for the |
| 28 | serial I/O. |
| 29 | |
| 30 | config EARLY_SCIF_CONSOLE_PORT |
| 31 | hex "SCIF port for early console" |
| 32 | depends on EARLY_SCIF_CONSOLE |
| 33 | default "0xffe00000" if CPU_SUBTYPE_SH7780 |
Yoshinori Sato | 11cbb70 | 2006-12-07 18:07:27 +0900 | [diff] [blame] | 34 | default "0xfffe9800" if CPU_SUBTYPE_SH7206 |
| 35 | default "0xf8420000" if CPU_SUBTYPE_SH7619 |
Paul Mundt | 6fc21b8 | 2006-11-27 12:10:23 +0900 | [diff] [blame] | 36 | default "0xffe80000" if CPU_SH4 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 37 | |
| 38 | config EARLY_PRINTK |
| 39 | bool "Early printk support" |
| 40 | depends on SH_STANDARD_BIOS || EARLY_SCIF_CONSOLE |
| 41 | help |
| 42 | Say Y here to redirect kernel printk messages to the serial port |
| 43 | used by the SH-IPL bootloader, starting very early in the boot |
| 44 | process and ending when the kernel's serial console is initialised. |
| 45 | This option is only useful porting the kernel to a new machine, |
| 46 | when the kernel may crash or hang before the serial console is |
| 47 | initialised. If unsure, say N. |
| 48 | |
Paul Mundt | 6fc21b8 | 2006-11-27 12:10:23 +0900 | [diff] [blame] | 49 | On devices that are running SH-IPL and want to keep the port |
| 50 | initialization consistent while not using the BIOS callbacks, |
| 51 | select both the EARLY_SCIF_CONSOLE and SH_STANDARD_BIOS, using |
| 52 | the kernel command line option to toggle back and forth. |
| 53 | |
Paul Mundt | d153ea8 | 2006-09-27 18:20:16 +0900 | [diff] [blame] | 54 | config DEBUG_STACKOVERFLOW |
| 55 | bool "Check for stack overflows" |
| 56 | depends on DEBUG_KERNEL |
| 57 | help |
| 58 | This option will cause messages to be printed if free stack space |
| 59 | drops below a certain limit. |
| 60 | |
| 61 | config DEBUG_STACK_USAGE |
| 62 | bool "Stack utilization instrumentation" |
| 63 | depends on DEBUG_KERNEL |
| 64 | help |
| 65 | Enables the display of the minimum amount of free stack which each |
| 66 | task has ever had available in the sysrq-T and sysrq-P debug output. |
| 67 | |
| 68 | This option will slow down process creation somewhat. |
| 69 | |
Paul Mundt | a6a31139 | 2006-09-27 18:22:14 +0900 | [diff] [blame] | 70 | config 4KSTACKS |
| 71 | bool "Use 4Kb for kernel stacks instead of 8Kb" |
| 72 | depends on DEBUG_KERNEL |
| 73 | help |
| 74 | If you say Y here the kernel will use a 4Kb stacksize for the |
| 75 | kernel stack attached to each process/thread. This facilitates |
| 76 | running more threads on a system and also reduces the pressure |
| 77 | on the VM subsystem for higher order allocations. This option |
| 78 | will also use IRQ stacks to compensate for the reduced stackspace. |
| 79 | |
Paul Mundt | fa5da2f | 2007-03-08 17:27:37 +0900 | [diff] [blame^] | 80 | config SH_KGDB |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 81 | bool "Include KGDB kernel debugger" |
Paul Mundt | 2549b32 | 2006-09-27 16:22:33 +0900 | [diff] [blame] | 82 | select FRAME_POINTER |
Paul Mundt | fa5da2f | 2007-03-08 17:27:37 +0900 | [diff] [blame^] | 83 | select DEBUG_INFO |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 84 | help |
| 85 | Include in-kernel hooks for kgdb, the Linux kernel source level |
| 86 | debugger. See <http://kgdb.sourceforge.net/> for more information. |
| 87 | Unless you are intending to debug the kernel, say N here. |
| 88 | |
| 89 | menu "KGDB configuration options" |
Paul Mundt | fa5da2f | 2007-03-08 17:27:37 +0900 | [diff] [blame^] | 90 | depends on SH_KGDB |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 91 | |
| 92 | config MORE_COMPILE_OPTIONS |
| 93 | bool "Add any additional compile options" |
| 94 | help |
| 95 | If you want to add additional CFLAGS to the kernel build, enable this |
| 96 | option and then enter what you would like to add in the next question. |
| 97 | Note however that -g is already appended with the selection of KGDB. |
| 98 | |
| 99 | config COMPILE_OPTIONS |
| 100 | string "Additional compile arguments" |
| 101 | depends on MORE_COMPILE_OPTIONS |
| 102 | |
| 103 | config KGDB_NMI |
| 104 | bool "Enter KGDB on NMI" |
| 105 | default n |
| 106 | |
| 107 | config KGDB_THREAD |
| 108 | bool "Include KGDB thread support" |
| 109 | default y |
| 110 | |
| 111 | config SH_KGDB_CONSOLE |
| 112 | bool "Console messages through GDB" |
Paul Mundt | fa5da2f | 2007-03-08 17:27:37 +0900 | [diff] [blame^] | 113 | depends on !SERIAL_SH_SCI_CONSOLE |
| 114 | select SERIAL_CORE_CONSOLE |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 115 | default n |
| 116 | |
| 117 | config KGDB_SYSRQ |
| 118 | bool "Allow SysRq 'G' to enter KGDB" |
| 119 | default y |
| 120 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 121 | comment "Serial port setup" |
| 122 | |
| 123 | config KGDB_DEFPORT |
| 124 | int "Port number (ttySCn)" |
| 125 | default "1" |
| 126 | |
| 127 | config KGDB_DEFBAUD |
| 128 | int "Baud rate" |
| 129 | default "115200" |
| 130 | |
| 131 | choice |
| 132 | prompt "Parity" |
Paul Mundt | fa5da2f | 2007-03-08 17:27:37 +0900 | [diff] [blame^] | 133 | depends on SH_KGDB |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 134 | default KGDB_DEFPARITY_N |
| 135 | |
| 136 | config KGDB_DEFPARITY_N |
| 137 | bool "None" |
| 138 | |
| 139 | config KGDB_DEFPARITY_E |
| 140 | bool "Even" |
| 141 | |
| 142 | config KGDB_DEFPARITY_O |
| 143 | bool "Odd" |
| 144 | |
| 145 | endchoice |
| 146 | |
| 147 | choice |
| 148 | prompt "Data bits" |
Paul Mundt | fa5da2f | 2007-03-08 17:27:37 +0900 | [diff] [blame^] | 149 | depends on SH_KGDB |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 150 | default KGDB_DEFBITS_8 |
| 151 | |
| 152 | config KGDB_DEFBITS_8 |
| 153 | bool "8" |
| 154 | |
| 155 | config KGDB_DEFBITS_7 |
| 156 | bool "7" |
| 157 | |
| 158 | endchoice |
| 159 | |
| 160 | endmenu |
| 161 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | endmenu |