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
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
38 bool "Early printk support"
39 depends on SH_STANDARD_BIOS || EARLY_SCIF_CONSOLE
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.
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.
53 config DEBUG_STACKOVERFLOW
54 bool "Check for stack overflows"
55 depends on DEBUG_KERNEL
57 This option will cause messages to be printed if free stack space
58 drops below a certain limit.
60 config DEBUG_STACK_USAGE
61 bool "Stack utilization instrumentation"
62 depends on DEBUG_KERNEL
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.
67 This option will slow down process creation somewhat.
70 bool "Use 4Kb for kernel stacks instead of 8Kb"
71 depends on DEBUG_KERNEL
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.
80 bool "Include KGDB kernel debugger"
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.
87 menu "KGDB configuration options"
90 config MORE_COMPILE_OPTIONS
91 bool "Add any additional compile options"
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.
97 config COMPILE_OPTIONS
98 string "Additional compile arguments"
99 depends on MORE_COMPILE_OPTIONS
102 bool "Enter KGDB on NMI"
106 bool "Include KGDB thread support"
109 config SH_KGDB_CONSOLE
110 bool "Console messages through GDB"
114 bool "Allow SysRq 'G' to enter KGDB"
117 config KGDB_KERNEL_ASSERTS
118 bool "Include KGDB kernel assertions"
121 comment "Serial port setup"
124 int "Port number (ttySCn)"
134 default KGDB_DEFPARITY_N
136 config KGDB_DEFPARITY_N
139 config KGDB_DEFPARITY_E
142 config KGDB_DEFPARITY_O
150 default KGDB_DEFBITS_8
152 config KGDB_DEFBITS_8
155 config KGDB_DEFBITS_7