1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
>> 2 menu "Kernel hacking"
2 3
3 config GPROF !! 4 source "lib/Kconfig.debug"
4 bool "Enable gprof support" !! 5
5 depends on DEBUG_INFO && FRAME_POINTER !! 6 config BOOTPARAM
>> 7 bool 'Compiled-in Kernel Boot Parameter'
>> 8
>> 9 config BOOTPARAM_STRING
>> 10 string 'Kernel Boot Parameter'
>> 11 default 'console=ttyS0,19200'
>> 12 depends on BOOTPARAM
>> 13
>> 14 config EARLY_PRINTK
>> 15 bool "Early printk"
>> 16 depends on !(SUN3 || M68000 || COLDFIRE)
6 help 17 help
7 This allows profiling of a User-Mode !! 18 Write kernel log output directly to a serial port.
8 utility. !! 19 Where implemented, output goes to the framebuffer as well.
>> 20 PROM console functionality on Sun 3x is not affected by this option.
>> 21
>> 22 Pass "earlyprintk" on the kernel command line to get a
>> 23 boot console.
9 24
10 See <http://user-mode-linux.sourcefo !! 25 This is useful for kernel debugging when your machine crashes very
11 details. !! 26 early, i.e. before the normal console driver is loaded.
>> 27 You should normally say N here, unless you want to debug such a crash.
12 28
13 If you're involved in UML kernel dev !! 29 if !MMU
14 say Y. If you're unsure, say N. <<
15 30
16 config GCOV !! 31 config FULLDEBUG
17 bool "Enable gcov support" !! 32 bool "Full Symbolic/Source Debugging support"
18 depends on DEBUG_INFO <<
19 depends on !KCOV <<
20 depends on !MODULES <<
21 help 33 help
22 This option allows developers to ret !! 34 Enable debugging symbols on kernel build.
23 session. <<
24 35
25 See <http://user-mode-linux.sourcefo !! 36 config HIGHPROFILE
26 details. !! 37 bool "Use fast second timer for profiling"
>> 38 depends on COLDFIRE
>> 39 help
>> 40 Use a fast secondary clock to produce profiling information.
27 41
28 If you're involved in UML kernel dev !! 42 config NO_KERNEL_MSG
29 say Y. If you're unsure, say N. !! 43 bool "Suppress Kernel BUG Messages"
>> 44 help
>> 45 Do not output any debug BUG messages within the kernel.
30 46
31 config EARLY_PRINTK !! 47 config BDM_DISABLE
32 bool "Early printk" !! 48 bool "Disable BDM signals"
33 default y !! 49 depends on COLDFIRE
34 help 50 help
35 Write kernel log output directly to !! 51 Disable the ColdFire CPU's BDM signals.
>> 52
>> 53 endif
36 54
37 This is useful for kernel debugging !! 55 endmenu
38 early before the console code is ini <<
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