3 config TRACE_IRQFLAGS_SUPPORT
6 source "lib/Kconfig.debug"
8 config SH_STANDARD_BIOS
9 bool "Use LinuxSH standard BIOS"
11 Say Y here if your target has the gdb-sh-stub
12 package from www.m17n.org (or any conforming standard LinuxSH BIOS)
13 in FLASH or EPROM. The kernel will use standard BIOS calls during
14 boot for various housekeeping tasks (including calls to read and
15 write characters to a system console, get a MAC address from an
16 on-board Ethernet interface, and shut down the hardware). Note this
17 does not work with machines with an existing operating system in
18 mask ROM and no flash (WindowsCE machines fall in this category).
21 config EARLY_SCIF_CONSOLE
22 bool "Use early SCIF console"
24 This enables an early console using a fixed SCIF port. This can
25 be used by platforms that are either not running the SH
26 standard BIOS, or do not wish to use the BIOS callbacks for the
29 config EARLY_SCIF_CONSOLE_PORT
31 depends on EARLY_SCIF_CONSOLE
32 default "0xffe00000" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7763
33 default "0xffe00000" if CPU_SUBTYPE_SH7722 || CPU_SUBTYPE_SH7366
34 default "0xffea0000" if CPU_SUBTYPE_SH7785
35 default "0xfffe8000" if CPU_SUBTYPE_SH7203
36 default "0xfffe9800" if CPU_SUBTYPE_SH7206 || CPU_SUBTYPE_SH7263
37 default "0xf8420000" if CPU_SUBTYPE_SH7619
38 default "0xa4400000" if CPU_SUBTYPE_SH7712 || CPU_SUBTYPE_SH7705
39 default "0xa4430000" if CPU_SUBTYPE_SH7720 || CPU_SUBTYPE_SH7721
40 default "0xffc30000" if CPU_SUBTYPE_SHX3
41 default "0xffe80000" if CPU_SH4
45 bool "Early printk support"
46 depends on SH_STANDARD_BIOS || EARLY_SCIF_CONSOLE
48 Say Y here to redirect kernel printk messages to the serial port
49 used by the SH-IPL bootloader, starting very early in the boot
50 process and ending when the kernel's serial console is initialised.
51 This option is only useful porting the kernel to a new machine,
52 when the kernel may crash or hang before the serial console is
53 initialised. If unsure, say N.
55 On devices that are running SH-IPL and want to keep the port
56 initialization consistent while not using the BIOS callbacks,
57 select both the EARLY_SCIF_CONSOLE and SH_STANDARD_BIOS, using
58 the kernel command line option to toggle back and forth.
61 depends on DEBUG_KERNEL
62 bool "Debug BOOTMEM initialization"
64 config DEBUG_STACKOVERFLOW
65 bool "Check for stack overflows"
66 depends on DEBUG_KERNEL && SUPERH32
68 This option will cause messages to be printed if free stack space
69 drops below a certain limit.
71 config DEBUG_STACK_USAGE
72 bool "Stack utilization instrumentation"
73 depends on DEBUG_KERNEL
75 Enables the display of the minimum amount of free stack which each
76 task has ever had available in the sysrq-T and sysrq-P debug output.
78 This option will slow down process creation somewhat.
81 bool "Use 4Kb for kernel stacks instead of 8Kb"
82 depends on DEBUG_KERNEL
84 If you say Y here the kernel will use a 4Kb stacksize for the
85 kernel stack attached to each process/thread. This facilitates
86 running more threads on a system and also reduces the pressure
87 on the VM subsystem for higher order allocations. This option
88 will also use IRQ stacks to compensate for the reduced stackspace.
91 bool "Use separate kernel stacks when processing interrupts"
92 depends on DEBUG_KERNEL && SUPERH32
94 If you say Y here the kernel will use separate kernel stacks
95 for handling hard and soft interrupts. This can help avoid
96 overflowing the process kernel stacks.
99 bool "Include KGDB kernel debugger"
102 depends on CPU_SH3 || CPU_SH4
104 Include in-kernel hooks for kgdb, the Linux kernel source level
105 debugger. See <http://kgdb.sourceforge.net/> for more information.
106 Unless you are intending to debug the kernel, say N here.
108 menu "KGDB configuration options"
111 config MORE_COMPILE_OPTIONS
112 bool "Add any additional compile options"
114 If you want to add additional CFLAGS to the kernel build, enable this
115 option and then enter what you would like to add in the next question.
116 Note however that -g is already appended with the selection of KGDB.
118 config COMPILE_OPTIONS
119 string "Additional compile arguments"
120 depends on MORE_COMPILE_OPTIONS
124 prompt "Enter KGDB on NMI"
126 config SH_KGDB_CONSOLE
128 prompt "Console messages through GDB"
129 depends on !SERIAL_SH_SCI_CONSOLE && SERIAL_SH_SCI=y
130 select SERIAL_CORE_CONSOLE
134 prompt "Allow SysRq 'G' to enter KGDB"
135 depends on MAGIC_SYSRQ
137 comment "Serial port setup"
140 int "Port number (ttySCn)"
150 default KGDB_DEFPARITY_N
152 config KGDB_DEFPARITY_N
155 config KGDB_DEFPARITY_E
158 config KGDB_DEFPARITY_O
166 default KGDB_DEFBITS_8
168 config KGDB_DEFBITS_8
171 config KGDB_DEFBITS_7
180 config SH64_PROC_ASIDS
181 bool "Debug: report ASIDs through /proc/asids"
185 bool "Debug: set SR.WATCH to enable hardware watchpoints and trace"
187 config POOR_MANS_STRACE
188 bool "Debug: enable rudimentary strace facility"
190 This option allows system calls to be traced to the console. It also
191 aids in detecting kernel stack underflow. It is useful for debugging
192 early-userland problems (e.g. init incurring fatal exceptions.)
194 config SH_ALPHANUMERIC
195 bool "Enable debug outputs to on-board alphanumeric display"
198 config SH_NO_BSS_INIT
199 bool "Avoid zeroing BSS (to speed-up startup on suitable platforms)"