sh: fix pg-sh4.c build breakage in linux-next
[deliverable/linux.git] / arch / sh / Kconfig.debug
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1menu "Kernel hacking"
2
afbfb52e 3config TRACE_IRQFLAGS_SUPPORT
d7ef4fb3 4 def_bool y
afbfb52e 5
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6source "lib/Kconfig.debug"
7
8config SH_STANDARD_BIOS
9 bool "Use LinuxSH standard BIOS"
1a013e2f 10 depends on SUPERH32
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11 help
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).
20 If unsure, say N.
21
22config EARLY_SCIF_CONSOLE
23 bool "Use early SCIF console"
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24 help
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
28 serial I/O.
29
30config EARLY_SCIF_CONSOLE_PORT
8d797cd1 31 hex
6fc21b82 32 depends on EARLY_SCIF_CONSOLE
2a8ff459 33 default "0xa4400000" if CPU_SUBTYPE_SH7712 || CPU_SUBTYPE_SH7705
31a49c4b 34 default "0xa4430000" if CPU_SUBTYPE_SH7720 || CPU_SUBTYPE_SH7721
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35 default "0xf8420000" if CPU_SUBTYPE_SH7619
36 default "0xff804000" if CPU_SUBTYPE_MXG
8d797cd1 37 default "0xffc30000" if CPU_SUBTYPE_SHX3
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38 default "0xffe00000" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7763 || \
39 CPU_SUBTYPE_SH7722 || CPU_SUBTYPE_SH7366
6fc21b82 40 default "0xffe80000" if CPU_SH4
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41 default "0xffea0000" if CPU_SUBTYPE_SH7785
42 default "0xfffe8000" if CPU_SUBTYPE_SH7203
43 default "0xfffe9800" if CPU_SUBTYPE_SH7206 || CPU_SUBTYPE_SH7263
8d797cd1 44 default "0x00000000"
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45
46config EARLY_PRINTK
47 bool "Early printk support"
48 depends on SH_STANDARD_BIOS || EARLY_SCIF_CONSOLE
49 help
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.
56
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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.
61
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62config DEBUG_BOOTMEM
63 depends on DEBUG_KERNEL
64 bool "Debug BOOTMEM initialization"
65
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66config DEBUG_STACKOVERFLOW
67 bool "Check for stack overflows"
5db141a9 68 depends on DEBUG_KERNEL && SUPERH32
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69 help
70 This option will cause messages to be printed if free stack space
71 drops below a certain limit.
72
73config DEBUG_STACK_USAGE
74 bool "Stack utilization instrumentation"
75 depends on DEBUG_KERNEL
76 help
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.
79
80 This option will slow down process creation somewhat.
81
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82config 4KSTACKS
83 bool "Use 4Kb for kernel stacks instead of 8Kb"
1f8404ea 84 depends on DEBUG_KERNEL && (MMU || BROKEN)
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85 help
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.
91
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92config IRQSTACKS
93 bool "Use separate kernel stacks when processing interrupts"
5db141a9 94 depends on DEBUG_KERNEL && SUPERH32
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95 help
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.
99
fa5da2f7 100config SH_KGDB
1da177e4 101 bool "Include KGDB kernel debugger"
2549b322 102 select FRAME_POINTER
fa5da2f7 103 select DEBUG_INFO
357d5946 104 depends on CPU_SH3 || CPU_SH4
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105 help
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.
109
110menu "KGDB configuration options"
fa5da2f7 111 depends on SH_KGDB
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112
113config MORE_COMPILE_OPTIONS
114 bool "Add any additional compile options"
115 help
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.
119
120config COMPILE_OPTIONS
121 string "Additional compile arguments"
122 depends on MORE_COMPILE_OPTIONS
123
124config KGDB_NMI
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125 def_bool n
126 prompt "Enter KGDB on NMI"
1da177e4 127
1da177e4 128config SH_KGDB_CONSOLE
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129 def_bool n
130 prompt "Console messages through GDB"
808bde25 131 depends on !SERIAL_SH_SCI_CONSOLE && SERIAL_SH_SCI=y
fa5da2f7 132 select SERIAL_CORE_CONSOLE
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133
134config KGDB_SYSRQ
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135 def_bool y
136 prompt "Allow SysRq 'G' to enter KGDB"
0acc729e 137 depends on MAGIC_SYSRQ
1da177e4 138
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139comment "Serial port setup"
140
141config KGDB_DEFPORT
142 int "Port number (ttySCn)"
143 default "1"
144
145config KGDB_DEFBAUD
146 int "Baud rate"
147 default "115200"
148
149choice
150 prompt "Parity"
fa5da2f7 151 depends on SH_KGDB
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152 default KGDB_DEFPARITY_N
153
154config KGDB_DEFPARITY_N
155 bool "None"
156
157config KGDB_DEFPARITY_E
158 bool "Even"
159
160config KGDB_DEFPARITY_O
161 bool "Odd"
162
163endchoice
164
165choice
166 prompt "Data bits"
fa5da2f7 167 depends on SH_KGDB
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168 default KGDB_DEFBITS_8
169
170config KGDB_DEFBITS_8
171 bool "8"
172
173config KGDB_DEFBITS_7
174 bool "7"
175
176endchoice
177
178endmenu
179
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180if SUPERH64
181
182config SH64_PROC_ASIDS
183 bool "Debug: report ASIDs through /proc/asids"
184 depends on PROC_FS
185
186config SH64_SR_WATCH
187 bool "Debug: set SR.WATCH to enable hardware watchpoints and trace"
188
189config POOR_MANS_STRACE
190 bool "Debug: enable rudimentary strace facility"
191 help
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.)
195
196config SH_ALPHANUMERIC
197 bool "Enable debug outputs to on-board alphanumeric display"
198 depends on SH_CAYMAN
199
200config SH_NO_BSS_INIT
201 bool "Avoid zeroing BSS (to speed-up startup on suitable platforms)"
202
203endif
204
1da177e4 205endmenu
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