1 # SPDX-License-Identifier: GPL-2.0 !! 1 menu "Kernel hacking"
2 2
3 config GPROF !! 3 source "lib/Kconfig.debug"
4 bool "Enable gprof support" !! 4
5 depends on DEBUG_INFO && FRAME_POINTER !! 5 config BOOTPARAM
>> 6 bool 'Compiled-in Kernel Boot Parameter'
>> 7
>> 8 config BOOTPARAM_STRING
>> 9 string 'Kernel Boot Parameter'
>> 10 default 'console=ttyS0,19200'
>> 11 depends on BOOTPARAM
>> 12
>> 13 config EARLY_PRINTK
>> 14 bool "Early printk" if EMBEDDED
>> 15 depends on MVME16x || MAC
>> 16 default y
6 help 17 help
7 This allows profiling of a User-Mode !! 18 Write kernel log output directly to a serial port.
8 utility. <<
9 19
10 See <http://user-mode-linux.sourcefo !! 20 This is useful for kernel debugging when your machine crashes very
11 details. !! 21 early before the console code is initialized.
>> 22 You should normally say N here, unless you want to debug such a crash.
12 23
13 If you're involved in UML kernel dev !! 24 if !MMU
14 say Y. If you're unsure, say N. <<
15 25
16 config GCOV !! 26 config FULLDEBUG
17 bool "Enable gcov support" !! 27 bool "Full Symbolic/Source Debugging support"
18 depends on DEBUG_INFO <<
19 depends on !KCOV <<
20 depends on !MODULES <<
21 help 28 help
22 This option allows developers to ret !! 29 Enable debugging symbols on kernel build.
23 session. <<
24 30
25 See <http://user-mode-linux.sourcefo !! 31 config HIGHPROFILE
26 details. !! 32 bool "Use fast second timer for profiling"
>> 33 depends on COLDFIRE
>> 34 help
>> 35 Use a fast secondary clock to produce profiling information.
27 36
28 If you're involved in UML kernel dev !! 37 config NO_KERNEL_MSG
29 say Y. If you're unsure, say N. !! 38 bool "Suppress Kernel BUG Messages"
>> 39 help
>> 40 Do not output any debug BUG messages within the kernel.
30 41
31 config EARLY_PRINTK !! 42 config BDM_DISABLE
32 bool "Early printk" !! 43 bool "Disable BDM signals"
33 default y !! 44 depends on COLDFIRE
34 help 45 help
35 Write kernel log output directly to !! 46 Disable the ColdFire CPU's BDM signals.
>> 47
>> 48 endif
36 49
37 This is useful for kernel debugging !! 50 endmenu
38 early before the console code is ini <<
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