[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / mn10300 / Kconfig.debug

menu "Kernel hacking"

source "lib/Kconfig.debug"

config DEBUG_STACKOVERFLOW
	bool "Check for stack overflows"
	depends on DEBUG_KERNEL

config DEBUG_DECOMPRESS_KERNEL
	bool "Using serial port during decompressing kernel"
	depends on DEBUG_KERNEL
	default n
	help
	  If you say Y here you will confirm the start and the end of
	  decompressing Linux seeing "Uncompressing Linux... " and
	  "Ok, booting the kernel.\n" on console.

config TEST_MISALIGNMENT_HANDLER
	bool "Run tests on the misalignment handler"
	depends on DEBUG_KERNEL
	default n
	help
	  If you say Y here the kernel will execute a list of misaligned memory
	  accesses to make sure the misalignment handler deals them with
	  correctly.  If it does not, the kernel will throw a BUG.

config KPROBES
	bool "Kprobes"
	depends on DEBUG_KERNEL
	help
	  Kprobes allows you to trap at almost any kernel address and
	  execute a callback function.  register_kprobe() establishes
	  a probepoint and specifies the callback.  Kprobes is useful
	  for kernel debugging, non-intrusive instrumentation and testing.
	  If in doubt, say "N".

config GDBSTUB
	bool "Remote GDB kernel debugging"
	depends on DEBUG_KERNEL && DEPRECATED
	select DEBUG_INFO
	select FRAME_POINTER
	help
	  If you say Y here, it will be possible to remotely debug the kernel
	  using gdb. This enlarges your kernel ELF image disk size by several
	  megabytes and requires a machine with more than 16 MB, better 32 MB
	  RAM to avoid excessive linking time. This is only useful for kernel
	  hackers. If unsure, say N.

	  This is deprecated in favour of KGDB and will be removed in a later
	  version.

config GDBSTUB_IMMEDIATE
	bool "Break into GDB stub immediately"
	depends on GDBSTUB
	help
	  If you say Y here, GDB stub will break into the program as soon as
	  possible, leaving the program counter at the beginning of
	  start_kernel() in init/main.c.

config GDBSTUB_ALLOW_SINGLE_STEP
	bool "Allow software single-stepping in GDB stub"
	depends on GDBSTUB && !SMP && !PREEMPT
	help
	  Allow GDB stub to perform software single-stepping through the
	  kernel.  This doesn't work very well on SMP or preemptible kernels as
	  it uses temporary breakpoints to emulate single-stepping.

config GDB_CONSOLE
	bool "Console output to GDB"
	depends on GDBSTUB
	help
	  If you are using GDB for remote debugging over a serial port and
	  would like kernel messages to be formatted into GDB $O packets so
	  that GDB prints them as program output, say 'Y'.

config GDBSTUB_DEBUGGING
	bool "Debug GDB stub by messages to serial port"
	depends on GDBSTUB
	help
	  This causes debugging messages to be displayed at various points
	  during execution of the GDB stub routines. Such messages will be
	  displayed on ttyS0 if that isn't the GDB stub's port, or ttySM0
	  otherwise.

config GDBSTUB_DEBUG_ENTRY
	bool "Debug GDB stub entry"
	depends on GDBSTUB_DEBUGGING
	help
	  This option causes information to be displayed about entry to or exit
	  from the main GDB stub routine.

config GDBSTUB_DEBUG_PROTOCOL
	bool "Debug GDB stub protocol"
	depends on GDBSTUB_DEBUGGING
	help
	  This option causes information to be displayed about the GDB remote
	  protocol messages generated exchanged with GDB.

config GDBSTUB_DEBUG_IO
	bool "Debug GDB stub I/O"
	depends on GDBSTUB_DEBUGGING
	help
	  This option causes information to be displayed about GDB stub's
	  low-level I/O.

config GDBSTUB_DEBUG_BREAKPOINT
	bool "Debug GDB stub breakpoint management"
	depends on GDBSTUB_DEBUGGING
	help
	  This option causes information to be displayed about GDB stub's
	  breakpoint management.

choice
	prompt "GDB stub port"
	default GDBSTUB_ON_TTYSM0
	depends on GDBSTUB
	help
	  Select the serial port used for GDB-stub.

config GDBSTUB_ON_TTYSM0
	bool "/dev/ttySM0 [SIF0]"
	depends on MN10300_TTYSM0
	select GDBSTUB_ON_TTYSMx

config GDBSTUB_ON_TTYSM1
	bool "/dev/ttySM1 [SIF1]"
	depends on MN10300_TTYSM1
	select GDBSTUB_ON_TTYSMx

config GDBSTUB_ON_TTYSM2
	bool "/dev/ttySM2 [SIF2]"
	depends on MN10300_TTYSM2
	select GDBSTUB_ON_TTYSMx

config GDBSTUB_ON_TTYS0
	bool "/dev/ttyS0"
	select GDBSTUB_ON_TTYSx

config GDBSTUB_ON_TTYS1
	bool "/dev/ttyS1"
	select GDBSTUB_ON_TTYSx

endchoice

config GDBSTUB_ON_TTYSMx
	bool
	depends on GDBSTUB_ON_TTYSM0 || GDBSTUB_ON_TTYSM1 || GDBSTUB_ON_TTYSM2
	default y

config GDBSTUB_ON_TTYSx
	bool
	depends on GDBSTUB_ON_TTYS0 || GDBSTUB_ON_TTYS1
	default y

endmenu

config KERNEL_DEBUGGER
	def_bool y
	depends on GDBSTUB || KGDB
Commit	Line	Data
b920de1b DH	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
9f555889 DH	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
b920de1b DH	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"
1a8d59e5	39	depends on DEBUG_KERNEL && DEPRECATED
b920de1b DH	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
1a8d59e5 DH	49	This is deprecated in favour of KGDB and will be removed in a later
	50	version.
	51
b920de1b DH	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
9ee21723 DH	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
b920de1b DH	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"
95929eff	115	default GDBSTUB_ON_TTYSM0
b920de1b DH	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
792576b1 DH	156
	157	config KERNEL_DEBUGGER
	158	def_bool y
e460d644	159	depends on GDBSTUB \|\| KGDB