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- menu "Kernel hacking"
- source "lib/Kconfig.debug"
- config EARLY_PRINTK
- bool "Early printk" if EXPERT && DEBUG_KERNEL
- default y
- help
- Write kernel log output directly via the hypervisor console.
- This is useful for kernel debugging when your machine crashes very
- early before the console code is initialized. For normal operation
- it is not recommended because it looks ugly and doesn't cooperate
- with klogd/syslogd. You should normally N here,
- unless you want to debug such a crash.
- config DEBUG_STACKOVERFLOW
- bool "Check for stack overflows"
- depends on DEBUG_KERNEL
- help
- This option will cause messages to be printed if free stack space
- drops below a certain limit.
- config DEBUG_STACK_USAGE
- bool "Stack utilization instrumentation"
- depends on DEBUG_KERNEL
- help
- Enables the display of the minimum amount of free stack which each
- task has ever had available in the sysrq-T and sysrq-P debug output.
- This option will slow down process creation somewhat.
- config DEBUG_EXTRA_FLAGS
- string "Additional compiler arguments when building with '-g'"
- depends on DEBUG_INFO
- default ""
- help
- Debug info can be large, and flags like
- `-femit-struct-debug-baseonly' can reduce the kernel file
- size and build time noticeably. Such flags are often
- helpful if the main use of debug info is line number info.
- endmenu
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