Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1menu "Kernel hacking"
2
3source "lib/Kconfig.debug"
4
5config SH_STANDARD_BIOS
6 bool "Use LinuxSH standard BIOS"
7 help
8 Say Y here if your target has the gdb-sh-stub
9 package from www.m17n.org (or any conforming standard LinuxSH BIOS)
10 in FLASH or EPROM. The kernel will use standard BIOS calls during
11 boot for various housekeeping tasks (including calls to read and
12 write characters to a system console, get a MAC address from an
13 on-board Ethernet interface, and shut down the hardware). Note this
14 does not work with machines with an existing operating system in
15 mask ROM and no flash (WindowsCE machines fall in this category).
16 If unsure, say N.
17
18config EARLY_SCIF_CONSOLE
19 bool "Use early SCIF console"
20 depends on CPU_SH4 || CPU_SH2A && !SH_STANDARD_BIOS
21
22config EARLY_PRINTK
23 bool "Early printk support"
24 depends on SH_STANDARD_BIOS || EARLY_SCIF_CONSOLE
25 help
26 Say Y here to redirect kernel printk messages to the serial port
27 used by the SH-IPL bootloader, starting very early in the boot
28 process and ending when the kernel's serial console is initialised.
29 This option is only useful porting the kernel to a new machine,
30 when the kernel may crash or hang before the serial console is
31 initialised. If unsure, say N.
32
33config DEBUG_STACKOVERFLOW
34 bool "Check for stack overflows"
35 depends on DEBUG_KERNEL
36 help
37 This option will cause messages to be printed if free stack space
38 drops below a certain limit.
39
40config DEBUG_STACK_USAGE
41 bool "Stack utilization instrumentation"
42 depends on DEBUG_KERNEL
43 help
44 Enables the display of the minimum amount of free stack which each
45 task has ever had available in the sysrq-T and sysrq-P debug output.
46
47 This option will slow down process creation somewhat.
48
49config 4KSTACKS
50 bool "Use 4Kb for kernel stacks instead of 8Kb"
51 depends on DEBUG_KERNEL
52 help
53 If you say Y here the kernel will use a 4Kb stacksize for the
54 kernel stack attached to each process/thread. This facilitates
55 running more threads on a system and also reduces the pressure
56 on the VM subsystem for higher order allocations. This option
57 will also use IRQ stacks to compensate for the reduced stackspace.
58
59config KGDB
60 bool "Include KGDB kernel debugger"
61 select FRAME_POINTER
62 help
63 Include in-kernel hooks for kgdb, the Linux kernel source level
64 debugger. See <http://kgdb.sourceforge.net/> for more information.
65 Unless you are intending to debug the kernel, say N here.
66
67menu "KGDB configuration options"
68 depends on KGDB
69
70config MORE_COMPILE_OPTIONS
71 bool "Add any additional compile options"
72 help
73 If you want to add additional CFLAGS to the kernel build, enable this
74 option and then enter what you would like to add in the next question.
75 Note however that -g is already appended with the selection of KGDB.
76
77config COMPILE_OPTIONS
78 string "Additional compile arguments"
79 depends on MORE_COMPILE_OPTIONS
80
81config KGDB_NMI
82 bool "Enter KGDB on NMI"
83 default n
84
85config KGDB_THREAD
86 bool "Include KGDB thread support"
87 default y
88
89config SH_KGDB_CONSOLE
90 bool "Console messages through GDB"
91 default n
92
93config KGDB_SYSRQ
94 bool "Allow SysRq 'G' to enter KGDB"
95 default y
96
97config KGDB_KERNEL_ASSERTS
98 bool "Include KGDB kernel assertions"
99 default n
100
101comment "Serial port setup"
102
103config KGDB_DEFPORT
104 int "Port number (ttySCn)"
105 default "1"
106
107config KGDB_DEFBAUD
108 int "Baud rate"
109 default "115200"
110
111choice
112 prompt "Parity"
113 depends on KGDB
114 default KGDB_DEFPARITY_N
115
116config KGDB_DEFPARITY_N
117 bool "None"
118
119config KGDB_DEFPARITY_E
120 bool "Even"
121
122config KGDB_DEFPARITY_O
123 bool "Odd"
124
125endchoice
126
127choice
128 prompt "Data bits"
129 depends on KGDB
130 default KGDB_DEFBITS_8
131
132config KGDB_DEFBITS_8
133 bool "8"
134
135config KGDB_DEFBITS_7
136 bool "7"
137
138endchoice
139
140endmenu
141
142endmenu