arch/powerpc/Kconfig.debug

   1 menu "Kernel hacking"
   2
   3 source "lib/Kconfig.debug"
   4
   5 config DEBUG_STACKOVERFLOW
   6         bool "Check for stack overflows"
   7         depends on DEBUG_KERNEL && PPC64
   8         help
   9           This option will cause messages to be printed if free stack space
  10           drops below a certain limit.
  11
  12 config DEBUG_STACK_USAGE
  13         bool "Stack utilization instrumentation"
  14         depends on DEBUG_KERNEL && PPC64
  15         help
  16           Enables the display of the minimum amount of free stack which each
  17           task has ever had available in the sysrq-T and sysrq-P debug output.
  18
  19           This option will slow down process creation somewhat.
  20
  21 config DEBUGGER
  22         bool "Enable debugger hooks"
  23         depends on DEBUG_KERNEL
  24         help
  25           Include in-kernel hooks for kernel debuggers. Unless you are
  26           intending to debug the kernel, say N here.
  27
  28 config KGDB
  29         bool "Include kgdb kernel debugger"
  30         depends on DEBUGGER && (BROKEN || PPC_GEN550 || 4xx)
  31         select DEBUG_INFO
  32         help
  33           Include in-kernel hooks for kgdb, the Linux kernel source level
  34           debugger.  See <http://kgdb.sourceforge.net/> for more information.
  35           Unless you are intending to debug the kernel, say N here.
  36
  37 choice
  38         prompt "Serial Port"
  39         depends on KGDB
  40         default KGDB_TTYS1
  41
  42 config KGDB_TTYS0
  43         bool "ttyS0"
  44
  45 config KGDB_TTYS1
  46         bool "ttyS1"
  47
  48 config KGDB_TTYS2
  49         bool "ttyS2"
  50
  51 config KGDB_TTYS3
  52         bool "ttyS3"
  53
  54 endchoice
  55
  56 config KGDB_CONSOLE
  57         bool "Enable serial console thru kgdb port"
  58         depends on KGDB && 8xx || CPM2
  59         help
  60           If you enable this, all serial console messages will be sent
  61           over the gdb stub.
  62           If unsure, say N.
  63
  64 config XMON
  65         bool "Include xmon kernel debugger"
  66         depends on DEBUGGER && !PPC_ISERIES
  67         help
  68           Include in-kernel hooks for the xmon kernel monitor/debugger.
  69           Unless you are intending to debug the kernel, say N here.
  70           Make sure to enable also CONFIG_BOOTX_TEXT on Macs. Otherwise
  71           nothing will appear on the screen (xmon writes directly to the
  72           framebuffer memory).
  73           The cmdline option 'xmon' or 'xmon=early' will drop into xmon
  74           very early during boot. 'xmon=on' will just enable the xmon
  75           debugger hooks.  'xmon=off' will disable the debugger hooks
  76           if CONFIG_XMON_DEFAULT is set.
  77
  78 config XMON_DEFAULT
  79         bool "Enable xmon by default"
  80         depends on XMON
  81         help
  82           xmon is normally disabled unless booted with 'xmon=on'.
  83           Use 'xmon=off' to disable xmon init during runtime.
  84
  85 config IRQSTACKS
  86         bool "Use separate kernel stacks when processing interrupts"
  87         depends on PPC64
  88         help
  89           If you say Y here the kernel will use separate kernel stacks
  90           for handling hard and soft interrupts.  This can help avoid
  91           overflowing the process kernel stacks.
  92
  93 config BDI_SWITCH
  94         bool "Include BDI-2000 user context switcher"
  95         depends on DEBUG_KERNEL && PPC32
  96         help
  97           Include in-kernel support for the Abatron BDI2000 debugger.
  98           Unless you are intending to debug the kernel with one of these
  99           machines, say N here.
 100
 101 config BOOTX_TEXT
 102         bool "Support for early boot text console (BootX or OpenFirmware only)"
 103         depends PPC_OF && !PPC_ISERIES
 104         help
 105           Say Y here to see progress messages from the boot firmware in text
 106           mode. Requires either BootX or Open Firmware.
 107
 108 config SERIAL_TEXT_DEBUG
 109         bool "Support for early boot texts over serial port"
 110         depends on 4xx || LOPEC || MV64X60 || PPLUS || PRPMC800 || \
 111                 PPC_GEN550 || PPC_MPC52xx
 112
 113 choice
 114         prompt "Early debugging (dangerous)"
 115         bool
 116         optional
 117         help
 118           Enable early debugging. Careful, if you enable debugging for the
 119           wrong type of machine your kernel _will not boot_.
 120
 121 config PPC_EARLY_DEBUG_LPAR
 122         bool "LPAR HV Console"
 123         depends on PPC_PSERIES
 124         help
 125           Select this to enable early debugging for a machine with a HVC
 126           console on vterm 0.
 127
 128 config PPC_EARLY_DEBUG_G5
 129         bool "Apple G5"
 130         depends on PPC_PMAC64
 131         help
 132           Select this to enable early debugging for Apple G5 machines.
 133
 134 config PPC_EARLY_DEBUG_RTAS
 135         bool "RTAS Panel"
 136         depends on PPC_RTAS
 137         help
 138           Select this to enable early debugging via the RTAS panel.
 139
 140 config PPC_EARLY_DEBUG_MAPLE
 141         bool "Maple real mode"
 142         depends on PPC_MAPLE
 143         help
 144           Select this to enable early debugging for Maple.
 145
 146 config PPC_EARLY_DEBUG_ISERIES
 147         bool "iSeries HV Console"
 148         depends on PPC_ISERIES
 149         help
 150           Select this to enable early debugging for legacy iSeries. You need
 151           to hit "Ctrl-x Ctrl-x" to see the messages on the console.
 152
 153 endchoice
 154
 155 endmenu