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Linus Torvalds1da177e2005-04-16 15:20:36 -07001menu "Kernel hacking"
2
Ralf Baechle192ef362006-07-07 14:07:18 +01003config TRACE_IRQFLAGS_SUPPORT
4 bool
5 default y
6
Linus Torvalds1da177e2005-04-16 15:20:36 -07007source "lib/Kconfig.debug"
8
9config CROSSCOMPILE
10 bool "Are you using a crosscompiler"
11 help
12 Say Y here if you are compiling the kernel on a different
Ralf Baechle37631202006-04-24 13:08:41 +010013 architecture than the one it is intended to run on. This is just a
14 convenience option which will select the appropriate value for
15 the CROSS_COMPILE make variable which otherwise has to be passed on
16 the command line from mips-linux-, mipsel-linux-, mips64-linux- and
17 mips64el-linux- as appropriate for a particular kernel configuration.
18 You will have to pass the value for CROSS_COMPILE manually if the
19 name prefix for your tools is different.
Linus Torvalds1da177e2005-04-16 15:20:36 -070020
21config CMDLINE
22 string "Default kernel command string"
23 default ""
24 help
Jan Altenberg3e7f9b822007-01-25 20:46:14 +010025 On some platforms, there is currently no way for the boot loader to
26 pass arguments to the kernel. For these platforms, you can supply
27 some command-line options at build time by entering them here. In
28 other cases you can specify kernel args so that you don't have
Linus Torvalds1da177e2005-04-16 15:20:36 -070029 to set them up in board prom initialization routines.
30
31config DEBUG_STACK_USAGE
32 bool "Enable stack utilization instrumentation"
33 depends on DEBUG_KERNEL
34 help
35 Enables the display of the minimum amount of free stack which each
36 task has ever had available in the sysrq-T and sysrq-P debug output.
37
38 This option will slow down process creation somewhat.
39
Ralf Baechle93490752007-07-05 17:39:48 +010040config SMTC_IDLE_HOOK_DEBUG
Ralf Baechlec68644d2007-02-26 20:46:34 +000041 bool "Enable additional debug checks before going into CPU idle loop"
42 depends on DEBUG_KERNEL && MIPS_MT_SMTC
43 help
44 This option enables Enable additional debug checks before going into
45 CPU idle loop. For details on these checks, see
46 arch/mips/kernel/smtc.c. This debugging option result in significant
47 overhead so should be disabled in production kernels.
48
Linus Torvalds1da177e2005-04-16 15:20:36 -070049config KGDB
50 bool "Remote GDB kernel debugging"
Ralf Baechlecc801072007-02-17 02:58:39 +000051 depends on DEBUG_KERNEL && SYS_SUPPORTS_KGDB
Linus Torvalds1da177e2005-04-16 15:20:36 -070052 select DEBUG_INFO
53 help
54 If you say Y here, it will be possible to remotely debug the MIPS
55 kernel using gdb. This enlarges your kernel image disk size by
56 several megabytes and requires a machine with more than 16 MB,
57 better 32 MB RAM to avoid excessive linking time. This is only
58 useful for kernel hackers. If unsure, say N.
59
Ralf Baechlecc801072007-02-17 02:58:39 +000060config SYS_SUPPORTS_KGDB
61 bool
62
Linus Torvalds1da177e2005-04-16 15:20:36 -070063config GDB_CONSOLE
64 bool "Console output to GDB"
65 depends on KGDB
66 help
67 If you are using GDB for remote debugging over a serial port and
68 would like kernel messages to be formatted into GDB $O packets so
69 that GDB prints them as program output, say 'Y'.
70
71config SB1XXX_CORELIS
72 bool "Corelis Debugger"
73 depends on SIBYTE_SB1xxx_SOC
74 select DEBUG_INFO
75 help
76 Select compile flags that produce code that can be processed by the
77 Corelis mksym utility and UDB Emulator.
78
79config RUNTIME_DEBUG
80 bool "Enable run-time debugging"
81 depends on DEBUG_KERNEL
82 help
83 If you say Y here, some debugging macros will do run-time checking.
84 If you say N here, those macros will mostly turn to no-ops. See
85 include/asm-mips/debug.h for debuging macros.
86 If unsure, say N.
87
88config MIPS_UNCACHED
89 bool "Run uncached"
90 depends on DEBUG_KERNEL && !SMP && !SGI_IP27
91 help
92 If you say Y here there kernel will disable all CPU caches. This will
93 reduce the system's performance dramatically but can help finding
94 otherwise hard to track bugs. It can also useful if you're doing
95 hardware debugging with a logic analyzer and need to see all traffic
96 on the bus.
97
98endmenu