1 choice !! 1 # SPDX-License-Identifier: GPL-2.0
2 prompt "Choose kernel unwinder" !! 2
3 default UNWINDER_PROLOGUE if KALLSYMS !! 3 config BOOTPARAM
4 help !! 4 bool "Compiled-in Kernel Boot Parameter"
5 This determines which method will be <<
6 traces for panics, oopses, bugs, war <<
7 lockdep, and more. <<
8 5
9 config UNWINDER_GUESS !! 6 config BOOTPARAM_STRING
10 bool "Guess unwinder" !! 7 string "Kernel Boot Parameter"
>> 8 default "console=ttyS0,19200"
>> 9 depends on BOOTPARAM
>> 10
>> 11 config EARLY_PRINTK
>> 12 bool "Early printk"
>> 13 depends on !(SUN3 || M68000 || COLDFIRE)
11 help 14 help
12 This option enables the "guess" unwi !! 15 Write kernel log output directly to a serial port.
13 traces. It scans the stack and repo !! 16 Where implemented, output goes to the framebuffer as well.
14 finds. Some of the addresses it rep !! 17 PROM console functionality on Sun 3x is not affected by this option.
15 !! 18
16 While this option often produces fal !! 19 Pass "earlyprintk" on the kernel command line to get a
17 useful in many cases. !! 20 boot console.
18 !! 21
19 config UNWINDER_PROLOGUE !! 22 This is useful for kernel debugging when your machine crashes very
20 bool "Prologue unwinder" !! 23 early, i.e. before the normal console driver is loaded.
21 depends on KALLSYMS !! 24 You should normally say N here, unless you want to debug such a crash.
>> 25
>> 26 if !MMU
>> 27
>> 28 config FULLDEBUG
>> 29 bool "Full Symbolic/Source Debugging support"
22 help 30 help
23 This option enables the "prologue" u !! 31 Enable debugging symbols on kernel build.
24 traces. It unwind the stack frame b !! 32
25 information is needed, at least the !! 33 config HIGHPROFILE
26 Some of the addresses it reports may !! 34 bool "Use fast second timer for profiling"
27 Guess unwinder). !! 35 depends on COLDFIRE
28 <<
29 config UNWINDER_ORC <<
30 bool "ORC unwinder" <<
31 depends on HAVE_OBJTOOL <<
32 select OBJTOOL <<
33 help 36 help
34 This option enables the ORC (Oops Re !! 37 Use a fast secondary clock to produce profiling information.
35 unwinding kernel stack traces. It u <<
36 a simplified version of the DWARF Ca <<
37 38
38 Enabling this option will increase t !! 39 config BDM_DISABLE
39 by roughly 2-4MB, depending on your !! 40 bool "Disable BDM signals"
>> 41 depends on COLDFIRE
>> 42 help
>> 43 Disable the ColdFire CPU's BDM signals.
40 44
41 endchoice !! 45 endif
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