1 choice !! 1 # SPDX-License-Identifier: GPL-2.0
2 prompt "Choose kernel unwinder" <<
3 default UNWINDER_PROLOGUE if KALLSYMS <<
4 help <<
5 This determines which method will be <<
6 traces for panics, oopses, bugs, war <<
7 lockdep, and more. <<
8 2
9 config UNWINDER_GUESS !! 3 config TRACE_IRQFLAGS_SUPPORT
10 bool "Guess unwinder" !! 4 bool
11 help !! 5 default y
12 This option enables the "guess" unwi !! 6
13 traces. It scans the stack and repo !! 7 config DEBUG_DCFLUSH
14 finds. Some of the addresses it rep !! 8 bool "D-cache flush debugging"
15 !! 9 depends on SPARC64 && DEBUG_KERNEL
16 While this option often produces fal !! 10
17 useful in many cases. !! 11 config MCOUNT
18 !! 12 bool
19 config UNWINDER_PROLOGUE !! 13 depends on SPARC64
20 bool "Prologue unwinder" !! 14 depends on FUNCTION_TRACER
21 depends on KALLSYMS !! 15 default y
22 help !! 16
23 This option enables the "prologue" u !! 17 config FRAME_POINTER
24 traces. It unwind the stack frame b !! 18 bool
25 information is needed, at least the !! 19 depends on MCOUNT
26 Some of the addresses it reports may !! 20 default y
27 Guess unwinder). <<
28 <<
29 config UNWINDER_ORC <<
30 bool "ORC unwinder" <<
31 depends on HAVE_OBJTOOL <<
32 select OBJTOOL <<
33 help <<
34 This option enables the ORC (Oops Re <<
35 unwinding kernel stack traces. It u <<
36 a simplified version of the DWARF Ca <<
37 <<
38 Enabling this option will increase t <<
39 by roughly 2-4MB, depending on your <<
40 <<
41 endchoice <<
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