1menu "Kernel hacking" 2 3source "lib/Kconfig.debug" 4 5config EARLY_PRINTK 6 bool "Early printk" if EXPERT && 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 17config 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 24config 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 34endmenu 35