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