arch/sh/Kconfig.debug

   1 menu "Kernel hacking"
   2
   3 config TRACE_IRQFLAGS_SUPPORT
   4         bool
   5         default y
   6
   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"
  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
  32         depends on EARLY_SCIF_CONSOLE
  33         default "0xffe00000" if CPU_SUBTYPE_SH7780
  34         default "0xffea0000" if CPU_SUBTYPE_SH7785
  35         default "0xfffe9800" if CPU_SUBTYPE_SH7206
  36         default "0xf8420000" if CPU_SUBTYPE_SH7619
  37         default "0xa4400000" if CPU_SUBTYPE_SH7712 || CPU_SUBTYPE_SH7705
  38         default "0xa4430000" if CPU_SUBTYPE_SH7720
  39         default "0xffc30000" if CPU_SUBTYPE_SHX3
  40         default "0xffe80000" if CPU_SH4
  41         default "0x00000000"
  42
  43 config EARLY_PRINTK
  44         bool "Early printk support"
  45         depends on SH_STANDARD_BIOS || EARLY_SCIF_CONSOLE
  46         help
  47           Say Y here to redirect kernel printk messages to the serial port
  48           used by the SH-IPL bootloader, starting very early in the boot
  49           process and ending when the kernel's serial console is initialised.
  50           This option is only useful porting the kernel to a new machine,
  51           when the kernel may crash or hang before the serial console is
  52           initialised. If unsure, say N.
  53
  54           On devices that are running SH-IPL and want to keep the port
  55           initialization consistent while not using the BIOS callbacks,
  56           select both the EARLY_SCIF_CONSOLE and SH_STANDARD_BIOS, using
  57           the kernel command line option to toggle back and forth.
  58
  59 config DEBUG_BOOTMEM
  60         depends on DEBUG_KERNEL
  61         bool "Debug BOOTMEM initialization"
  62
  63 config DEBUG_STACKOVERFLOW
  64         bool "Check for stack overflows"
  65         depends on DEBUG_KERNEL
  66         help
  67           This option will cause messages to be printed if free stack space
  68           drops below a certain limit.
  69
  70 config DEBUG_STACK_USAGE
  71         bool "Stack utilization instrumentation"
  72         depends on DEBUG_KERNEL
  73         help
  74           Enables the display of the minimum amount of free stack which each
  75           task has ever had available in the sysrq-T and sysrq-P debug output.
  76
  77           This option will slow down process creation somewhat.
  78
  79 config 4KSTACKS
  80         bool "Use 4Kb for kernel stacks instead of 8Kb"
  81         depends on DEBUG_KERNEL
  82         help
  83           If you say Y here the kernel will use a 4Kb stacksize for the
  84           kernel stack attached to each process/thread. This facilitates
  85           running more threads on a system and also reduces the pressure
  86           on the VM subsystem for higher order allocations. This option
  87           will also use IRQ stacks to compensate for the reduced stackspace.
  88
  89 config SH_KGDB
  90         bool "Include KGDB kernel debugger"
  91         select FRAME_POINTER
  92         select DEBUG_INFO
  93         depends on CPU_SH3 || CPU_SH4
  94         help
  95           Include in-kernel hooks for kgdb, the Linux kernel source level
  96           debugger.  See <http://kgdb.sourceforge.net/> for more information.
  97           Unless you are intending to debug the kernel, say N here.
  98
  99 menu "KGDB configuration options"
 100         depends on SH_KGDB
 101
 102 config MORE_COMPILE_OPTIONS
 103         bool "Add any additional compile options"
 104         help
 105           If you want to add additional CFLAGS to the kernel build, enable this
 106           option and then enter what you would like to add in the next question.
 107           Note however that -g is already appended with the selection of KGDB.
 108
 109 config COMPILE_OPTIONS
 110         string "Additional compile arguments"
 111         depends on MORE_COMPILE_OPTIONS
 112
 113 config KGDB_NMI
 114         bool "Enter KGDB on NMI"
 115         default n
 116
 117 config SH_KGDB_CONSOLE
 118         bool "Console messages through GDB"
 119         depends on !SERIAL_SH_SCI_CONSOLE
 120         select SERIAL_CORE_CONSOLE
 121         default n
 122
 123 config KGDB_SYSRQ
 124         bool "Allow SysRq 'G' to enter KGDB"
 125         default y
 126
 127 comment "Serial port setup"
 128
 129 config KGDB_DEFPORT
 130         int "Port number (ttySCn)"
 131         default "1"
 132
 133 config KGDB_DEFBAUD
 134         int "Baud rate"
 135         default "115200"
 136
 137 choice
 138         prompt "Parity"
 139         depends on SH_KGDB
 140         default KGDB_DEFPARITY_N
 141
 142 config KGDB_DEFPARITY_N
 143         bool "None"
 144
 145 config KGDB_DEFPARITY_E
 146         bool "Even"
 147
 148 config KGDB_DEFPARITY_O
 149         bool "Odd"
 150
 151 endchoice
 152
 153 choice
 154         prompt "Data bits"
 155         depends on SH_KGDB
 156         default KGDB_DEFBITS_8
 157
 158 config KGDB_DEFBITS_8
 159         bool "8"
 160
 161 config KGDB_DEFBITS_7
 162         bool "7"
 163
 164 endchoice
 165
 166 endmenu
 167
 168 endmenu