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gerrit-public.fairphone.software / fp2-dev / kernel / msm / afbfb52e47273a440df33274452c603e8c332de2 / . / arch / sh / Kconfig.debug
blob: 66a25ef4ef1b8bf233e7936f049c91617933596f [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]1menu "Kernel hacking"
2
Paul Mundtafbfb522006-12-04 18:17:28 +0900[diff] [blame^]3config TRACE_IRQFLAGS_SUPPORT
4 bool
5 default y
6
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]7source "lib/Kconfig.debug"
8
9config 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
22config EARLY_SCIF_CONSOLE
23 bool "Use early SCIF console"
Paul Mundt6fc21b82006-11-27 12:10:23 +0900[diff] [blame]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
30config EARLY_SCIF_CONSOLE_PORT
31 hex "SCIF port for early console"
32 depends on EARLY_SCIF_CONSOLE
33 default "0xffe00000" if CPU_SUBTYPE_SH7780
34 default "0xfffe9800" if CPU_SUBTYPE_SH72060
35 default "0xffe80000" if CPU_SH4
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]36
37config EARLY_PRINTK
38 bool "Early printk support"
39 depends on SH_STANDARD_BIOS || EARLY_SCIF_CONSOLE
40 help
41 Say Y here to redirect kernel printk messages to the serial port
42 used by the SH-IPL bootloader, starting very early in the boot
43 process and ending when the kernel's serial console is initialised.
44 This option is only useful porting the kernel to a new machine,
45 when the kernel may crash or hang before the serial console is
46 initialised. If unsure, say N.
47
Paul Mundt6fc21b82006-11-27 12:10:23 +0900[diff] [blame]48 On devices that are running SH-IPL and want to keep the port
49 initialization consistent while not using the BIOS callbacks,
50 select both the EARLY_SCIF_CONSOLE and SH_STANDARD_BIOS, using
51 the kernel command line option to toggle back and forth.
52
Paul Mundtd153ea82006-09-27 18:20:16 +0900[diff] [blame]53config DEBUG_STACKOVERFLOW
54 bool "Check for stack overflows"
55 depends on DEBUG_KERNEL
56 help
57 This option will cause messages to be printed if free stack space
58 drops below a certain limit.
59
60config DEBUG_STACK_USAGE
61 bool "Stack utilization instrumentation"
62 depends on DEBUG_KERNEL
63 help
64 Enables the display of the minimum amount of free stack which each
65 task has ever had available in the sysrq-T and sysrq-P debug output.
66
67 This option will slow down process creation somewhat.
68
Paul Mundta6a311392006-09-27 18:22:14 +0900[diff] [blame]69config 4KSTACKS
70 bool "Use 4Kb for kernel stacks instead of 8Kb"
71 depends on DEBUG_KERNEL
72 help
73 If you say Y here the kernel will use a 4Kb stacksize for the
74 kernel stack attached to each process/thread. This facilitates
75 running more threads on a system and also reduces the pressure
76 on the VM subsystem for higher order allocations. This option
77 will also use IRQ stacks to compensate for the reduced stackspace.
78
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]79config KGDB
80 bool "Include KGDB kernel debugger"
Paul Mundt2549b322006-09-27 16:22:33 +0900[diff] [blame]81 select FRAME_POINTER
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]82 help
83 Include in-kernel hooks for kgdb, the Linux kernel source level
84 debugger. See <http://kgdb.sourceforge.net/> for more information.
85 Unless you are intending to debug the kernel, say N here.
86
87menu "KGDB configuration options"
88 depends on KGDB
89
90config MORE_COMPILE_OPTIONS
91 bool "Add any additional compile options"
92 help
93 If you want to add additional CFLAGS to the kernel build, enable this
94 option and then enter what you would like to add in the next question.
95 Note however that -g is already appended with the selection of KGDB.
96
97config COMPILE_OPTIONS
98 string "Additional compile arguments"
99 depends on MORE_COMPILE_OPTIONS
100
101config KGDB_NMI
102 bool "Enter KGDB on NMI"
103 default n
104
105config KGDB_THREAD
106 bool "Include KGDB thread support"
107 default y
108
109config SH_KGDB_CONSOLE
110 bool "Console messages through GDB"
111 default n
112
113config KGDB_SYSRQ
114 bool "Allow SysRq 'G' to enter KGDB"
115 default y
116
117config KGDB_KERNEL_ASSERTS
118 bool "Include KGDB kernel assertions"
119 default n
120
121comment "Serial port setup"
122
123config KGDB_DEFPORT
124 int "Port number (ttySCn)"
125 default "1"
126
127config KGDB_DEFBAUD
128 int "Baud rate"
129 default "115200"
130
131choice
132 prompt "Parity"
133 depends on KGDB
134 default KGDB_DEFPARITY_N
135
136config KGDB_DEFPARITY_N
137 bool "None"
138
139config KGDB_DEFPARITY_E
140 bool "Even"
141
142config KGDB_DEFPARITY_O
143 bool "Odd"
144
145endchoice
146
147choice
148 prompt "Data bits"
149 depends on KGDB
150 default KGDB_DEFBITS_8
151
152config KGDB_DEFBITS_8
153 bool "8"
154
155config KGDB_DEFBITS_7
156 bool "7"
157
158endchoice
159
160endmenu
161
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]162endmenu