arch/mn10300/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
   8
   9 config DEBUG_DECOMPRESS_KERNEL
  10         bool "Using serial port during decompressing kernel"
  11         depends on DEBUG_KERNEL
  12         default n
  13         help
  14           If you say Y here you will confirm the start and the end of
  15           decompressing Linux seeing "Uncompressing Linux... " and
  16           "Ok, booting the kernel.\n" on console.
  17
  18 config TEST_MISALIGNMENT_HANDLER
  19         bool "Run tests on the misalignment handler"
  20         depends on DEBUG_KERNEL
  21         default n
  22         help
  23           If you say Y here the kernel will execute a list of misaligned memory
  24           accesses to make sure the misalignment handler deals them with
  25           correctly.  If it does not, the kernel will throw a BUG.
  26
  27 config KPROBES
  28         bool "Kprobes"
  29         depends on DEBUG_KERNEL
  30         help
  31           Kprobes allows you to trap at almost any kernel address and
  32           execute a callback function.  register_kprobe() establishes
  33           a probepoint and specifies the callback.  Kprobes is useful
  34           for kernel debugging, non-intrusive instrumentation and testing.
  35           If in doubt, say "N".
  36
  37 config GDBSTUB
  38         bool "Remote GDB kernel debugging"
  39         depends on DEBUG_KERNEL && DEPRECATED
  40         select DEBUG_INFO
  41         select FRAME_POINTER
  42         help
  43           If you say Y here, it will be possible to remotely debug the kernel
  44           using gdb. This enlarges your kernel ELF image disk size by several
  45           megabytes and requires a machine with more than 16 MB, better 32 MB
  46           RAM to avoid excessive linking time. This is only useful for kernel
  47           hackers. If unsure, say N.
  48
  49           This is deprecated in favour of KGDB and will be removed in a later
  50           version.
  51
  52 config GDBSTUB_IMMEDIATE
  53         bool "Break into GDB stub immediately"
  54         depends on GDBSTUB
  55         help
  56           If you say Y here, GDB stub will break into the program as soon as
  57           possible, leaving the program counter at the beginning of
  58           start_kernel() in init/main.c.
  59
  60 config GDBSTUB_ALLOW_SINGLE_STEP
  61         bool "Allow software single-stepping in GDB stub"
  62         depends on GDBSTUB && !SMP && !PREEMPT
  63         help
  64           Allow GDB stub to perform software single-stepping through the
  65           kernel.  This doesn't work very well on SMP or preemptible kernels as
  66           it uses temporary breakpoints to emulate single-stepping.
  67
  68 config GDB_CONSOLE
  69         bool "Console output to GDB"
  70         depends on GDBSTUB
  71         help
  72           If you are using GDB for remote debugging over a serial port and
  73           would like kernel messages to be formatted into GDB $O packets so
  74           that GDB prints them as program output, say 'Y'.
  75
  76 config GDBSTUB_DEBUGGING
  77         bool "Debug GDB stub by messages to serial port"
  78         depends on GDBSTUB
  79         help
  80           This causes debugging messages to be displayed at various points
  81           during execution of the GDB stub routines. Such messages will be
  82           displayed on ttyS0 if that isn't the GDB stub's port, or ttySM0
  83           otherwise.
  84
  85 config GDBSTUB_DEBUG_ENTRY
  86         bool "Debug GDB stub entry"
  87         depends on GDBSTUB_DEBUGGING
  88         help
  89           This option causes information to be displayed about entry to or exit
  90           from the main GDB stub routine.
  91
  92 config GDBSTUB_DEBUG_PROTOCOL
  93         bool "Debug GDB stub protocol"
  94         depends on GDBSTUB_DEBUGGING
  95         help
  96           This option causes information to be displayed about the GDB remote
  97           protocol messages generated exchanged with GDB.
  98
  99 config GDBSTUB_DEBUG_IO
 100         bool "Debug GDB stub I/O"
 101         depends on GDBSTUB_DEBUGGING
 102         help
 103           This option causes information to be displayed about GDB stub's
 104           low-level I/O.
 105
 106 config GDBSTUB_DEBUG_BREAKPOINT
 107         bool "Debug GDB stub breakpoint management"
 108         depends on GDBSTUB_DEBUGGING
 109         help
 110           This option causes information to be displayed about GDB stub's
 111           breakpoint management.
 112
 113 choice
 114         prompt "GDB stub port"
 115         default GDBSTUB_ON_TTYSM0
 116         depends on GDBSTUB
 117         help
 118           Select the serial port used for GDB-stub.
 119
 120 config GDBSTUB_ON_TTYSM0
 121         bool "/dev/ttySM0 [SIF0]"
 122         depends on MN10300_TTYSM0
 123         select GDBSTUB_ON_TTYSMx
 124
 125 config GDBSTUB_ON_TTYSM1
 126         bool "/dev/ttySM1 [SIF1]"
 127         depends on MN10300_TTYSM1
 128         select GDBSTUB_ON_TTYSMx
 129
 130 config GDBSTUB_ON_TTYSM2
 131         bool "/dev/ttySM2 [SIF2]"
 132         depends on MN10300_TTYSM2
 133         select GDBSTUB_ON_TTYSMx
 134
 135 config GDBSTUB_ON_TTYS0
 136         bool "/dev/ttyS0"
 137         select GDBSTUB_ON_TTYSx
 138
 139 config GDBSTUB_ON_TTYS1
 140         bool "/dev/ttyS1"
 141         select GDBSTUB_ON_TTYSx
 142
 143 endchoice
 144
 145 config GDBSTUB_ON_TTYSMx
 146         bool
 147         depends on GDBSTUB_ON_TTYSM0 || GDBSTUB_ON_TTYSM1 || GDBSTUB_ON_TTYSM2
 148         default y
 149
 150 config GDBSTUB_ON_TTYSx
 151         bool
 152         depends on GDBSTUB_ON_TTYS0 || GDBSTUB_ON_TTYS1
 153         default y
 154
 155 endmenu
 156
 157 config KERNEL_DEBUGGER
 158         def_bool y
 159         depends on GDBSTUB || KGDB