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 || \
41 default "0xffe80000" if CPU_SH4
42 default "0xffea0000" if CPU_SUBTYPE_SH7785
43 default "0xfffe8000" if CPU_SUBTYPE_SH7203
44 default "0xfffe9800" if CPU_SUBTYPE_SH7206 || CPU_SUBTYPE_SH7263
48 bool "Early printk support"
49 depends on SH_STANDARD_BIOS || EARLY_SCIF_CONSOLE
51 Say Y here to redirect kernel printk messages to the serial port
52 used by the SH-IPL bootloader, starting very early in the boot
53 process and ending when the kernel's serial console is initialised.
54 This option is only useful porting the kernel to a new machine,
55 when the kernel may crash or hang before the serial console is
56 initialised. If unsure, say N.
58 On devices that are running SH-IPL and want to keep the port
59 initialization consistent while not using the BIOS callbacks,
60 select both the EARLY_SCIF_CONSOLE and SH_STANDARD_BIOS, using
61 the kernel command line option to toggle back and forth.
64 depends on DEBUG_KERNEL
65 bool "Debug BOOTMEM initialization"
67 config DEBUG_STACKOVERFLOW
68 bool "Check for stack overflows"
69 depends on DEBUG_KERNEL && SUPERH32
71 This option will cause messages to be printed if free stack space
72 drops below a certain limit.
74 config DEBUG_STACK_USAGE
75 bool "Stack utilization instrumentation"
76 depends on DEBUG_KERNEL
78 Enables the display of the minimum amount of free stack which each
79 task has ever had available in the sysrq-T and sysrq-P debug output.
81 This option will slow down process creation somewhat.
84 bool "Use 4Kb for kernel stacks instead of 8Kb"
85 depends on DEBUG_KERNEL && (MMU || BROKEN) && !PAGE_SIZE_64KB
87 If you say Y here the kernel will use a 4Kb stacksize for the
88 kernel stack attached to each process/thread. This facilitates
89 running more threads on a system and also reduces the pressure
90 on the VM subsystem for higher order allocations. This option
91 will also use IRQ stacks to compensate for the reduced stackspace.
94 bool "Use separate kernel stacks when processing interrupts"
95 depends on DEBUG_KERNEL && SUPERH32
97 If you say Y here the kernel will use separate kernel stacks
98 for handling hard and soft interrupts. This can help avoid
99 overflowing the process kernel stacks.
102 bool "Include KGDB kernel debugger"
105 depends on CPU_SH3 || CPU_SH4
107 Include in-kernel hooks for kgdb, the Linux kernel source level
108 debugger. See <http://kgdb.sourceforge.net/> for more information.
109 Unless you are intending to debug the kernel, say N here.
111 menu "KGDB configuration options"
114 config MORE_COMPILE_OPTIONS
115 bool "Add any additional compile options"
117 If you want to add additional CFLAGS to the kernel build, enable this
118 option and then enter what you would like to add in the next question.
119 Note however that -g is already appended with the selection of KGDB.
121 config COMPILE_OPTIONS
122 string "Additional compile arguments"
123 depends on MORE_COMPILE_OPTIONS
127 prompt "Enter KGDB on NMI"
129 config SH_KGDB_CONSOLE
131 prompt "Console messages through GDB"
132 depends on !SERIAL_SH_SCI_CONSOLE && SERIAL_SH_SCI=y
133 select SERIAL_CORE_CONSOLE
137 prompt "Allow SysRq 'G' to enter KGDB"
138 depends on MAGIC_SYSRQ
140 comment "Serial port setup"
143 int "Port number (ttySCn)"
153 default KGDB_DEFPARITY_N
155 config KGDB_DEFPARITY_N
158 config KGDB_DEFPARITY_E
161 config KGDB_DEFPARITY_O
169 default KGDB_DEFBITS_8
171 config KGDB_DEFBITS_8
174 config KGDB_DEFBITS_7
183 config SH64_PROC_ASIDS
184 bool "Debug: report ASIDs through /proc/asids"
185 depends on PROC_FS && MMU
188 bool "Debug: set SR.WATCH to enable hardware watchpoints and trace"
190 config POOR_MANS_STRACE
191 bool "Debug: enable rudimentary strace facility"
193 This option allows system calls to be traced to the console. It also
194 aids in detecting kernel stack underflow. It is useful for debugging
195 early-userland problems (e.g. init incurring fatal exceptions.)
197 config SH_ALPHANUMERIC
198 bool "Enable debug outputs to on-board alphanumeric display"
201 config SH_NO_BSS_INIT
202 bool "Avoid zeroing BSS (to speed-up startup on suitable platforms)"