Commit | Line | Data |
---|---|---|
867e359b CM |
1 | menu "Kernel hacking" |
2 | ||
3 | source "lib/Kconfig.debug" | |
4 | ||
5 | config EARLY_PRINTK | |
6 | bool "Early printk" if EMBEDDED && DEBUG_KERNEL | |
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 | ||
24 | config DEBUG_STACK_USAGE | |
25 | bool "Stack utilization instrumentation" | |
26 | depends on DEBUG_KERNEL | |
27 | help | |
28 | Enables the display of the minimum amount of free stack which each | |
29 | task has ever had available in the sysrq-T and sysrq-P debug output. | |
30 | ||
31 | This option will slow down process creation somewhat. | |
32 | ||
33 | config DEBUG_EXTRA_FLAGS | |
34 | string "Additional compiler arguments when building with '-g'" | |
35 | depends on DEBUG_INFO | |
36 | default "" | |
37 | help | |
38 | Debug info can be large, and flags like | |
39 | `-femit-struct-debug-baseonly' can reduce the kernel file | |
40 | size and build time noticeably. Such flags are often | |
41 | helpful if the main use of debug info is line number info. | |
42 | ||
43 | endmenu |