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