3 config TRACE_IRQFLAGS_SUPPORT
7 source "lib/Kconfig.debug"
9 config SH_STANDARD_BIOS
10 bool "Use LinuxSH standard BIOS"
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).
22 config EARLY_SCIF_CONSOLE
23 bool "Use early SCIF console"
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
30 config EARLY_SCIF_CONSOLE_PORT
32 depends on EARLY_SCIF_CONSOLE
33 default "0xffe00000" if CPU_SUBTYPE_SH7780
34 default "0xfffe9800" if CPU_SUBTYPE_SH7206
35 default "0xf8420000" if CPU_SUBTYPE_SH7619
36 default "0xa4400000" if CPU_SUBTYPE_SH7712 || CPU_SUBTYPE_SH7705
37 default "0xa4430000" if CPU_SUBTYPE_SH7720
38 default "0xffc30000" if CPU_SUBTYPE_SHX3
39 default "0xffe80000" if CPU_SH4
43 bool "Early printk support"
44 depends on SH_STANDARD_BIOS || EARLY_SCIF_CONSOLE
46 Say Y here to redirect kernel printk messages to the serial port
47 used by the SH-IPL bootloader, starting very early in the boot
48 process and ending when the kernel's serial console is initialised.
49 This option is only useful porting the kernel to a new machine,
50 when the kernel may crash or hang before the serial console is
51 initialised. If unsure, say N.
53 On devices that are running SH-IPL and want to keep the port
54 initialization consistent while not using the BIOS callbacks,
55 select both the EARLY_SCIF_CONSOLE and SH_STANDARD_BIOS, using
56 the kernel command line option to toggle back and forth.
59 depends on DEBUG_KERNEL
60 bool "Debug BOOTMEM initialization"
62 config DEBUG_STACKOVERFLOW
63 bool "Check for stack overflows"
64 depends on DEBUG_KERNEL
66 This option will cause messages to be printed if free stack space
67 drops below a certain limit.
69 config DEBUG_STACK_USAGE
70 bool "Stack utilization instrumentation"
71 depends on DEBUG_KERNEL
73 Enables the display of the minimum amount of free stack which each
74 task has ever had available in the sysrq-T and sysrq-P debug output.
76 This option will slow down process creation somewhat.
79 bool "Use 4Kb for kernel stacks instead of 8Kb"
80 depends on DEBUG_KERNEL
82 If you say Y here the kernel will use a 4Kb stacksize for the
83 kernel stack attached to each process/thread. This facilitates
84 running more threads on a system and also reduces the pressure
85 on the VM subsystem for higher order allocations. This option
86 will also use IRQ stacks to compensate for the reduced stackspace.
89 bool "Include KGDB kernel debugger"
92 depends on CPU_SH3 || CPU_SH4
94 Include in-kernel hooks for kgdb, the Linux kernel source level
95 debugger. See <http://kgdb.sourceforge.net/> for more information.
96 Unless you are intending to debug the kernel, say N here.
98 menu "KGDB configuration options"
101 config MORE_COMPILE_OPTIONS
102 bool "Add any additional compile options"
104 If you want to add additional CFLAGS to the kernel build, enable this
105 option and then enter what you would like to add in the next question.
106 Note however that -g is already appended with the selection of KGDB.
108 config COMPILE_OPTIONS
109 string "Additional compile arguments"
110 depends on MORE_COMPILE_OPTIONS
113 bool "Enter KGDB on NMI"
116 config SH_KGDB_CONSOLE
117 bool "Console messages through GDB"
118 depends on !SERIAL_SH_SCI_CONSOLE
119 select SERIAL_CORE_CONSOLE
123 bool "Allow SysRq 'G' to enter KGDB"
126 comment "Serial port setup"
129 int "Port number (ttySCn)"
139 default KGDB_DEFPARITY_N
141 config KGDB_DEFPARITY_N
144 config KGDB_DEFPARITY_E
147 config KGDB_DEFPARITY_O
155 default KGDB_DEFBITS_8
157 config KGDB_DEFBITS_8
160 config KGDB_DEFBITS_7