3 source "lib/Kconfig.debug"
5 config SH_STANDARD_BIOS
6 bool "Use LinuxSH standard BIOS"
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).
18 config EARLY_SCIF_CONSOLE
19 bool "Use early SCIF console"
21 This enables an early console using a fixed SCIF port. This can
22 be used by platforms that are either not running the SH
23 standard BIOS, or do not wish to use the BIOS callbacks for the
26 config EARLY_SCIF_CONSOLE_PORT
27 hex "SCIF port for early console"
28 depends on EARLY_SCIF_CONSOLE
29 default "0xffe00000" if CPU_SUBTYPE_SH7780
30 default "0xfffe9800" if CPU_SUBTYPE_SH72060
31 default "0xffe80000" if CPU_SH4
34 bool "Early printk support"
35 depends on SH_STANDARD_BIOS || EARLY_SCIF_CONSOLE
37 Say Y here to redirect kernel printk messages to the serial port
38 used by the SH-IPL bootloader, starting very early in the boot
39 process and ending when the kernel's serial console is initialised.
40 This option is only useful porting the kernel to a new machine,
41 when the kernel may crash or hang before the serial console is
42 initialised. If unsure, say N.
44 On devices that are running SH-IPL and want to keep the port
45 initialization consistent while not using the BIOS callbacks,
46 select both the EARLY_SCIF_CONSOLE and SH_STANDARD_BIOS, using
47 the kernel command line option to toggle back and forth.
49 config DEBUG_STACKOVERFLOW
50 bool "Check for stack overflows"
51 depends on DEBUG_KERNEL
53 This option will cause messages to be printed if free stack space
54 drops below a certain limit.
56 config DEBUG_STACK_USAGE
57 bool "Stack utilization instrumentation"
58 depends on DEBUG_KERNEL
60 Enables the display of the minimum amount of free stack which each
61 task has ever had available in the sysrq-T and sysrq-P debug output.
63 This option will slow down process creation somewhat.
66 bool "Use 4Kb for kernel stacks instead of 8Kb"
67 depends on DEBUG_KERNEL
69 If you say Y here the kernel will use a 4Kb stacksize for the
70 kernel stack attached to each process/thread. This facilitates
71 running more threads on a system and also reduces the pressure
72 on the VM subsystem for higher order allocations. This option
73 will also use IRQ stacks to compensate for the reduced stackspace.
76 bool "Include KGDB kernel debugger"
79 Include in-kernel hooks for kgdb, the Linux kernel source level
80 debugger. See <http://kgdb.sourceforge.net/> for more information.
81 Unless you are intending to debug the kernel, say N here.
83 menu "KGDB configuration options"
86 config MORE_COMPILE_OPTIONS
87 bool "Add any additional compile options"
89 If you want to add additional CFLAGS to the kernel build, enable this
90 option and then enter what you would like to add in the next question.
91 Note however that -g is already appended with the selection of KGDB.
93 config COMPILE_OPTIONS
94 string "Additional compile arguments"
95 depends on MORE_COMPILE_OPTIONS
98 bool "Enter KGDB on NMI"
102 bool "Include KGDB thread support"
105 config SH_KGDB_CONSOLE
106 bool "Console messages through GDB"
110 bool "Allow SysRq 'G' to enter KGDB"
113 config KGDB_KERNEL_ASSERTS
114 bool "Include KGDB kernel assertions"
117 comment "Serial port setup"
120 int "Port number (ttySCn)"
130 default KGDB_DEFPARITY_N
132 config KGDB_DEFPARITY_N
135 config KGDB_DEFPARITY_E
138 config KGDB_DEFPARITY_O
146 default KGDB_DEFBITS_8
148 config KGDB_DEFBITS_8
151 config KGDB_DEFBITS_7