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 bool "Compiled-in Kernel Boot Parameter"
>> 5
>> 6 config BOOTPARAM_STRING
>> 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)
4 help 14 help
5 This determines which method will be !! 15 Write kernel log output directly to a serial port.
6 traces for panics, oopses, bugs, war !! 16 Where implemented, output goes to the framebuffer as well.
7 lockdep, and more. !! 17 PROM console functionality on Sun 3x is not affected by this option.
>> 18
>> 19 Pass "earlyprintk" on the kernel command line to get a
>> 20 boot console.
>> 21
>> 22 This is useful for kernel debugging when your machine crashes very
>> 23 early, i.e. before the normal console driver is loaded.
>> 24 You should normally say N here, unless you want to debug such a crash.
8 25
9 config UNWINDER_GUESS !! 26 if !MMU
10 bool "Guess unwinder" !! 27
>> 28 config FULLDEBUG
>> 29 bool "Full Symbolic/Source Debugging support"
11 help 30 help
12 This option enables the "guess" unwi !! 31 Enable debugging symbols on kernel build.
13 traces. It scans the stack and repo !! 32
14 finds. Some of the addresses it rep !! 33 config HIGHPROFILE
15 !! 34 bool "Use fast second timer for profiling"
16 While this option often produces fal !! 35 depends on COLDFIRE
17 useful in many cases. <<
18 <<
19 config UNWINDER_PROLOGUE <<
20 bool "Prologue unwinder" <<
21 depends on KALLSYMS <<
22 help 36 help
23 This option enables the "prologue" u !! 37 Use a fast secondary clock to produce profiling information.
24 traces. It unwind the stack frame b !! 38
25 information is needed, at least the !! 39 config NO_KERNEL_MSG
26 Some of the addresses it reports may !! 40 bool "Suppress Kernel BUG Messages"
27 Guess unwinder). <<
28 <<
29 config UNWINDER_ORC <<
30 bool "ORC unwinder" <<
31 depends on HAVE_OBJTOOL <<
32 select OBJTOOL <<
33 help 41 help
34 This option enables the ORC (Oops Re !! 42 Do not output any debug BUG messages within the kernel.
35 unwinding kernel stack traces. It u <<
36 a simplified version of the DWARF Ca <<
37 43
38 Enabling this option will increase t !! 44 config BDM_DISABLE
39 by roughly 2-4MB, depending on your !! 45 bool "Disable BDM signals"
>> 46 depends on COLDFIRE
>> 47 help
>> 48 Disable the ColdFire CPU's BDM signals.
40 49
41 endchoice !! 50 endif
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