3 config TRACE_IRQFLAGS_SUPPORT
6 source "lib/Kconfig.debug"
8 config SH_STANDARD_BIOS
9 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 "0xa4400000" if CPU_SUBTYPE_SH7712 || CPU_SUBTYPE_SH7705
34 default "0xa4430000" if CPU_SUBTYPE_SH7720 || CPU_SUBTYPE_SH7721
35 default "0xf8420000" if CPU_SUBTYPE_SH7619
36 default "0xff804000" if CPU_SUBTYPE_MXG
37 default "0xffc30000" if CPU_SUBTYPE_SHX3
38 default "0xffe00000" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7763 || \
39 CPU_SUBTYPE_SH7722 || CPU_SUBTYPE_SH7366
40 default "0xffe80000" if CPU_SH4
41 default "0xffea0000" if CPU_SUBTYPE_SH7785
42 default "0xfffe8000" if CPU_SUBTYPE_SH7203
43 default "0xfffe9800" if CPU_SUBTYPE_SH7206 || CPU_SUBTYPE_SH7263
47 bool "Early printk support"
48 depends on SH_STANDARD_BIOS || EARLY_SCIF_CONSOLE
50 Say Y here to redirect kernel printk messages to the serial port
51 used by the SH-IPL bootloader, starting very early in the boot
52 process and ending when the kernel's serial console is initialised.
53 This option is only useful porting the kernel to a new machine,
54 when the kernel may crash or hang before the serial console is
55 initialised. If unsure, say N.
57 On devices that are running SH-IPL and want to keep the port
58 initialization consistent while not using the BIOS callbacks,
59 select both the EARLY_SCIF_CONSOLE and SH_STANDARD_BIOS, using
60 the kernel command line option to toggle back and forth.
63 depends on DEBUG_KERNEL
64 bool "Debug BOOTMEM initialization"
66 config DEBUG_STACKOVERFLOW
67 bool "Check for stack overflows"
68 depends on DEBUG_KERNEL && SUPERH32
70 This option will cause messages to be printed if free stack space
71 drops below a certain limit.
73 config DEBUG_STACK_USAGE
74 bool "Stack utilization instrumentation"
75 depends on DEBUG_KERNEL
77 Enables the display of the minimum amount of free stack which each
78 task has ever had available in the sysrq-T and sysrq-P debug output.
80 This option will slow down process creation somewhat.
83 bool "Use 4Kb for kernel stacks instead of 8Kb"
84 depends on DEBUG_KERNEL && (MMU || BROKEN)
86 If you say Y here the kernel will use a 4Kb stacksize for the
87 kernel stack attached to each process/thread. This facilitates
88 running more threads on a system and also reduces the pressure
89 on the VM subsystem for higher order allocations. This option
90 will also use IRQ stacks to compensate for the reduced stackspace.
93 bool "Use separate kernel stacks when processing interrupts"
94 depends on DEBUG_KERNEL && SUPERH32
96 If you say Y here the kernel will use separate kernel stacks
97 for handling hard and soft interrupts. This can help avoid
98 overflowing the process kernel stacks.
101 bool "Include KGDB kernel debugger"
104 depends on CPU_SH3 || CPU_SH4
106 Include in-kernel hooks for kgdb, the Linux kernel source level
107 debugger. See <http://kgdb.sourceforge.net/> for more information.
108 Unless you are intending to debug the kernel, say N here.
110 menu "KGDB configuration options"
113 config MORE_COMPILE_OPTIONS
114 bool "Add any additional compile options"
116 If you want to add additional CFLAGS to the kernel build, enable this
117 option and then enter what you would like to add in the next question.
118 Note however that -g is already appended with the selection of KGDB.
120 config COMPILE_OPTIONS
121 string "Additional compile arguments"
122 depends on MORE_COMPILE_OPTIONS
126 prompt "Enter KGDB on NMI"
128 config SH_KGDB_CONSOLE
130 prompt "Console messages through GDB"
131 depends on !SERIAL_SH_SCI_CONSOLE && SERIAL_SH_SCI=y
132 select SERIAL_CORE_CONSOLE
136 prompt "Allow SysRq 'G' to enter KGDB"
137 depends on MAGIC_SYSRQ
139 comment "Serial port setup"
142 int "Port number (ttySCn)"
152 default KGDB_DEFPARITY_N
154 config KGDB_DEFPARITY_N
157 config KGDB_DEFPARITY_E
160 config KGDB_DEFPARITY_O
168 default KGDB_DEFBITS_8
170 config KGDB_DEFBITS_8
173 config KGDB_DEFBITS_7
182 config SH64_PROC_ASIDS
183 bool "Debug: report ASIDs through /proc/asids"
187 bool "Debug: set SR.WATCH to enable hardware watchpoints and trace"
189 config POOR_MANS_STRACE
190 bool "Debug: enable rudimentary strace facility"
192 This option allows system calls to be traced to the console. It also
193 aids in detecting kernel stack underflow. It is useful for debugging
194 early-userland problems (e.g. init incurring fatal exceptions.)
196 config SH_ALPHANUMERIC
197 bool "Enable debug outputs to on-board alphanumeric display"
200 config SH_NO_BSS_INIT
201 bool "Avoid zeroing BSS (to speed-up startup on suitable platforms)"