Commit | Line | Data |
---|---|---|
49aef111 QZ |
1 | choice |
2 | prompt "Choose kernel unwinder" | |
3 | default UNWINDER_PROLOGUE if KALLSYMS | |
4 | help | |
5 | This determines which method will be used for unwinding kernel stack | |
6 | traces for panics, oopses, bugs, warnings, perf, /proc/<pid>/stack, | |
7 | lockdep, and more. | |
8 | ||
49232773 QZ |
9 | config UNWINDER_GUESS |
10 | bool "Guess unwinder" | |
11 | help | |
12 | This option enables the "guess" unwinder for unwinding kernel stack | |
13 | traces. It scans the stack and reports every kernel text address it | |
14 | finds. Some of the addresses it reports may be incorrect. | |
15 | ||
16 | While this option often produces false positives, it can still be | |
17 | useful in many cases. | |
49aef111 QZ |
18 | |
19 | config UNWINDER_PROLOGUE | |
20 | bool "Prologue unwinder" | |
21 | depends on KALLSYMS | |
22 | help | |
23 | This option enables the "prologue" unwinder for unwinding kernel stack | |
24 | traces. It unwind the stack frame based on prologue code analyze. Symbol | |
25 | information is needed, at least the address and length of each function. | |
26 | Some of the addresses it reports may be incorrect (but better than the | |
27 | Guess unwinder). | |
28 | ||
29 | endchoice |