arch/mn10300/Kconfig.debug

   1 menu "Kernel hacking"
   2
   3 source "lib/Kconfig.debug"
   4
   5 config DEBUG_DECOMPRESS_KERNEL
   6         bool "Using serial port during decompressing kernel"
   7         depends on DEBUG_KERNEL
   8         default n
   9         help
  10           If you say Y here you will confirm the start and the end of
  11           decompressing Linux seeing "Uncompressing Linux... " and
  12           "Ok, booting the kernel.\n" on console.
  13
  14 config TEST_MISALIGNMENT_HANDLER
  15         bool "Run tests on the misalignment handler"
  16         depends on DEBUG_KERNEL
  17         default n
  18         help
  19           If you say Y here the kernel will execute a list of misaligned memory
  20           accesses to make sure the misalignment handler deals them with
  21           correctly.  If it does not, the kernel will throw a BUG.
  22
  23 config KPROBES
  24         bool "Kprobes"
  25         depends on DEBUG_KERNEL
  26         help
  27           Kprobes allows you to trap at almost any kernel address and
  28           execute a callback function.  register_kprobe() establishes
  29           a probepoint and specifies the callback.  Kprobes is useful
  30           for kernel debugging, non-intrusive instrumentation and testing.
  31           If in doubt, say "N".
  32
  33 config GDBSTUB
  34         bool "Remote GDB kernel debugging"
  35         depends on DEBUG_KERNEL && DEPRECATED
  36         select DEBUG_INFO
  37         select FRAME_POINTER
  38         help
  39           If you say Y here, it will be possible to remotely debug the kernel
  40           using gdb. This enlarges your kernel ELF image disk size by several
  41           megabytes and requires a machine with more than 16 MB, better 32 MB
  42           RAM to avoid excessive linking time. This is only useful for kernel
  43           hackers. If unsure, say N.
  44
  45           This is deprecated in favour of KGDB and will be removed in a later
  46           version.
  47
  48 config GDBSTUB_IMMEDIATE
  49         bool "Break into GDB stub immediately"
  50         depends on GDBSTUB
  51         help
  52           If you say Y here, GDB stub will break into the program as soon as
  53           possible, leaving the program counter at the beginning of
  54           start_kernel() in init/main.c.
  55
  56 config GDBSTUB_ALLOW_SINGLE_STEP
  57         bool "Allow software single-stepping in GDB stub"
  58         depends on GDBSTUB && !SMP && !PREEMPT
  59         help
  60           Allow GDB stub to perform software single-stepping through the
  61           kernel.  This doesn't work very well on SMP or preemptible kernels as
  62           it uses temporary breakpoints to emulate single-stepping.
  63
  64 config GDB_CONSOLE
  65         bool "Console output to GDB"
  66         depends on GDBSTUB
  67         help
  68           If you are using GDB for remote debugging over a serial port and
  69           would like kernel messages to be formatted into GDB $O packets so
  70           that GDB prints them as program output, say 'Y'.
  71
  72 config GDBSTUB_DEBUGGING
  73         bool "Debug GDB stub by messages to serial port"
  74         depends on GDBSTUB
  75         help
  76           This causes debugging messages to be displayed at various points
  77           during execution of the GDB stub routines. Such messages will be
  78           displayed on ttyS0 if that isn't the GDB stub's port, or ttySM0
  79           otherwise.
  80
  81 config GDBSTUB_DEBUG_ENTRY
  82         bool "Debug GDB stub entry"
  83         depends on GDBSTUB_DEBUGGING
  84         help
  85           This option causes information to be displayed about entry to or exit
  86           from the main GDB stub routine.
  87
  88 config GDBSTUB_DEBUG_PROTOCOL
  89         bool "Debug GDB stub protocol"
  90         depends on GDBSTUB_DEBUGGING
  91         help
  92           This option causes information to be displayed about the GDB remote
  93           protocol messages generated exchanged with GDB.
  94
  95 config GDBSTUB_DEBUG_IO
  96         bool "Debug GDB stub I/O"
  97         depends on GDBSTUB_DEBUGGING
  98         help
  99           This option causes information to be displayed about GDB stub's
 100           low-level I/O.
 101
 102 config GDBSTUB_DEBUG_BREAKPOINT
 103         bool "Debug GDB stub breakpoint management"
 104         depends on GDBSTUB_DEBUGGING
 105         help
 106           This option causes information to be displayed about GDB stub's
 107           breakpoint management.
 108
 109 choice
 110         prompt "GDB stub port"
 111         default GDBSTUB_ON_TTYSM0
 112         depends on GDBSTUB
 113         help
 114           Select the serial port used for GDB-stub.
 115
 116 config GDBSTUB_ON_TTYSM0
 117         bool "/dev/ttySM0 [SIF0]"
 118         depends on MN10300_TTYSM0
 119         select GDBSTUB_ON_TTYSMx
 120
 121 config GDBSTUB_ON_TTYSM1
 122         bool "/dev/ttySM1 [SIF1]"
 123         depends on MN10300_TTYSM1
 124         select GDBSTUB_ON_TTYSMx
 125
 126 config GDBSTUB_ON_TTYSM2
 127         bool "/dev/ttySM2 [SIF2]"
 128         depends on MN10300_TTYSM2
 129         select GDBSTUB_ON_TTYSMx
 130
 131 config GDBSTUB_ON_TTYS0
 132         bool "/dev/ttyS0"
 133         select GDBSTUB_ON_TTYSx
 134
 135 config GDBSTUB_ON_TTYS1
 136         bool "/dev/ttyS1"
 137         select GDBSTUB_ON_TTYSx
 138
 139 endchoice
 140
 141 config GDBSTUB_ON_TTYSMx
 142         bool
 143         depends on GDBSTUB_ON_TTYSM0 || GDBSTUB_ON_TTYSM1 || GDBSTUB_ON_TTYSM2
 144         default y
 145
 146 config GDBSTUB_ON_TTYSx
 147         bool
 148         depends on GDBSTUB_ON_TTYS0 || GDBSTUB_ON_TTYS1
 149         default y
 150
 151 endmenu
 152
 153 config KERNEL_DEBUGGER
 154         def_bool y
 155         depends on GDBSTUB || KGDB