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gerrit-public.fairphone.software / kernel / msm-4.9 / 33a04454527edd33d4a6332a2944d2b4f46fbb18 / . / arch / sh / Kconfig.debug
blob: 87902e0298e29c805a4cf86d398f600c1c128e70 [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
Yoshinori Sato11cbb702006-12-07 18:07:27 +0900[diff] [blame]34 default "0xfffe9800" if CPU_SUBTYPE_SH7206
35 default "0xf8420000" if CPU_SUBTYPE_SH7619
Paul Mundt6fc21b82006-11-27 12:10:23 +0900[diff] [blame]36 default "0xffe80000" if CPU_SH4
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]37
38config EARLY_PRINTK
39 bool "Early printk support"
40 depends on SH_STANDARD_BIOS || EARLY_SCIF_CONSOLE
41 help
42 Say Y here to redirect kernel printk messages to the serial port
43 used by the SH-IPL bootloader, starting very early in the boot
44 process and ending when the kernel's serial console is initialised.
45 This option is only useful porting the kernel to a new machine,
46 when the kernel may crash or hang before the serial console is
47 initialised. If unsure, say N.
48
Paul Mundt6fc21b82006-11-27 12:10:23 +0900[diff] [blame]49 On devices that are running SH-IPL and want to keep the port
50 initialization consistent while not using the BIOS callbacks,
51 select both the EARLY_SCIF_CONSOLE and SH_STANDARD_BIOS, using
52 the kernel command line option to toggle back and forth.
53
Paul Mundtd153ea82006-09-27 18:20:16 +0900[diff] [blame]54config DEBUG_STACKOVERFLOW
55 bool "Check for stack overflows"
56 depends on DEBUG_KERNEL
57 help
58 This option will cause messages to be printed if free stack space
59 drops below a certain limit.
60
61config DEBUG_STACK_USAGE
62 bool "Stack utilization instrumentation"
63 depends on DEBUG_KERNEL
64 help
65 Enables the display of the minimum amount of free stack which each
66 task has ever had available in the sysrq-T and sysrq-P debug output.
67
68 This option will slow down process creation somewhat.
69
Paul Mundta6a311392006-09-27 18:22:14 +0900[diff] [blame]70config 4KSTACKS
71 bool "Use 4Kb for kernel stacks instead of 8Kb"
72 depends on DEBUG_KERNEL
73 help
74 If you say Y here the kernel will use a 4Kb stacksize for the
75 kernel stack attached to each process/thread. This facilitates
76 running more threads on a system and also reduces the pressure
77 on the VM subsystem for higher order allocations. This option
78 will also use IRQ stacks to compensate for the reduced stackspace.
79
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]80config KGDB
81 bool "Include KGDB kernel debugger"
Paul Mundt2549b322006-09-27 16:22:33 +0900[diff] [blame]82 select FRAME_POINTER
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]83 help
84 Include in-kernel hooks for kgdb, the Linux kernel source level
85 debugger. See <http://kgdb.sourceforge.net/> for more information.
86 Unless you are intending to debug the kernel, say N here.
87
88menu "KGDB configuration options"
89 depends on KGDB
90
91config MORE_COMPILE_OPTIONS
92 bool "Add any additional compile options"
93 help
94 If you want to add additional CFLAGS to the kernel build, enable this
95 option and then enter what you would like to add in the next question.
96 Note however that -g is already appended with the selection of KGDB.
97
98config COMPILE_OPTIONS
99 string "Additional compile arguments"
100 depends on MORE_COMPILE_OPTIONS
101
102config KGDB_NMI
103 bool "Enter KGDB on NMI"
104 default n
105
106config KGDB_THREAD
107 bool "Include KGDB thread support"
108 default y
109
110config SH_KGDB_CONSOLE
111 bool "Console messages through GDB"
112 default n
113
114config KGDB_SYSRQ
115 bool "Allow SysRq 'G' to enter KGDB"
116 default y
117
118config KGDB_KERNEL_ASSERTS
119 bool "Include KGDB kernel assertions"
120 default n
121
122comment "Serial port setup"
123
124config KGDB_DEFPORT
125 int "Port number (ttySCn)"
126 default "1"
127
128config KGDB_DEFBAUD
129 int "Baud rate"
130 default "115200"
131
132choice
133 prompt "Parity"
134 depends on KGDB
135 default KGDB_DEFPARITY_N
136
137config KGDB_DEFPARITY_N
138 bool "None"
139
140config KGDB_DEFPARITY_E
141 bool "Even"
142
143config KGDB_DEFPARITY_O
144 bool "Odd"
145
146endchoice
147
148choice
149 prompt "Data bits"
150 depends on KGDB
151 default KGDB_DEFBITS_8
152
153config KGDB_DEFBITS_8
154 bool "8"
155
156config KGDB_DEFBITS_7
157 bool "7"
158
159endchoice
160
161endmenu
162
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]163endmenu