On 05/02/2018 06:44 AM, [email protected] wrote:
> From: Changbin Du <[email protected]>
> 

Sorry, I missed one:

> diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
> index ab55801..e264199 100644
> --- a/lib/Kconfig.debug
> +++ b/lib/Kconfig.debug
> @@ -216,6 +216,27 @@ config NO_AUTO_INLINE
>  
>         If unsure, select N.
>  
> +config DEBUG_EXPERIENCE
> +     bool "Optimize for better debugging experience (-Og)"
> +     default n
> +     select NO_AUTO_INLINE
> +     depends on !CC_OPTIMIZE_FOR_SIZE
> +     help
> +       This will apply GCC '-Og' optimization level which is supported
> +       since GCC 4.8. This optimization level offers a reasonable level
> +       of optimization while maintaining fast compilation and a good
> +       debugging experience. It is similar to '-O1' while preferring to
> +       keep debug ability over runtime speed. The overall performance
> +       will drop a bit (~6%).
> +
> +       Use only if you want to debug the kernel, especially if you want
> +       to have better kernel debugging experience with gdb facilities
> +       like kgdb or qemu. If enabling this option breaks your kernel,
> +       you should either disable this or find a fix (mostly in the arch
> +       code). Currently this option has only be tested on x86_64 platform.

                                                been tested

> +
> +       If unsure, select N.
> +
>  config ENABLE_WARN_DEPRECATED
>       bool "Enable __deprecated logic"
>       default y
> 


-- 
~Randy

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