Commit | Line | Data |
---|---|---|
867e359b CM |
1 | menu "Kernel hacking" |
2 | ||
3 | source "lib/Kconfig.debug" | |
4 | ||
5 | config EARLY_PRINTK | |
6a108a14 | 6 | bool "Early printk" if EXPERT && DEBUG_KERNEL |
867e359b CM |
7 | default y |
8 | help | |
9 | Write kernel log output directly via the hypervisor console. | |
10 | ||
11 | This is useful for kernel debugging when your machine crashes very | |
12 | early before the console code is initialized. For normal operation | |
13 | it is not recommended because it looks ugly and doesn't cooperate | |
14 | with klogd/syslogd. You should normally N here, | |
15 | unless you want to debug such a crash. | |
16 | ||
17 | config DEBUG_STACKOVERFLOW | |
18 | bool "Check for stack overflows" | |
19 | depends on DEBUG_KERNEL | |
20 | help | |
21 | This option will cause messages to be printed if free stack space | |
22 | drops below a certain limit. | |
23 | ||
867e359b CM |
24 | config DEBUG_EXTRA_FLAGS |
25 | string "Additional compiler arguments when building with '-g'" | |
26 | depends on DEBUG_INFO | |
27 | default "" | |
28 | help | |
29 | Debug info can be large, and flags like | |
30 | `-femit-struct-debug-baseonly' can reduce the kernel file | |
31 | size and build time noticeably. Such flags are often | |
32 | helpful if the main use of debug info is line number info. | |
33 | ||
34 | endmenu |