Re: [Xen-devel] [RFC PATCH 5/7] build: wire up pre-existing debug build flag

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

On Sun, May 01, 2016 at 11:10:44PM -0500, Doug Goldstein wrote:
> This allows 'make debug=n' and 'make debug=y' work as it did previously
> but only in the case of the user not having an existing .config file
> from a 'make menuconfig'. This is because the command line 'debug' flag
> can only be used to set the default value and if the user has already
> built up a config their have their real preference set.

s/their have their/with their/ ?

Thank you for making this work.
> 
> Signed-off-by: Doug Goldstein <cardoe@xxxxxxxxxx>
> ---
> CC: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
> CC: George Dunlap <George.Dunlap@xxxxxxxxxxxxx>
> CC: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
> CC: Jan Beulich <jbeulich@xxxxxxxx>
> CC: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
> CC: Stefano Stabellini <sstabellini@xxxxxxxxxx>
> CC: Tim Deegan <tim@xxxxxxx>
> CC: Wei Liu <wei.liu2@xxxxxxxxxx>
> ---
>  xen/Kconfig.debug | 5 +++++
>  xen/Makefile      | 1 +
>  2 files changed, 6 insertions(+)
> 
> diff --git a/xen/Kconfig.debug b/xen/Kconfig.debug
> index 0b2ec50..ec27b09 100644
> --- a/xen/Kconfig.debug
> +++ b/xen/Kconfig.debug
> @@ -1,6 +1,11 @@
> +config DEBUG_ENV
> +     bool
> +     option env="debug"
>  
>  menuconfig DEBUG
>       bool "Debugging Options"
> +     default y if DEBUG_ENV = "y"
> +     default n
>       ---help---
>         If you want to debug Xen say Y and select any additional debugging
>         support options. This enables additional debugging through Xen
> diff --git a/xen/Makefile b/xen/Makefile
> index f49014b..e2da895 100644
> --- a/xen/Makefile
> +++ b/xen/Makefile
> @@ -27,6 +27,7 @@ SRCARCH=$(shell echo $(ARCH) | sed -e 's/x86.*/x86/' -e 
> s'/arm\(32\|64\)/arm/g')
>  # Don't break if the build process wasn't called from the top level
>  # we need XEN_TARGET_ARCH to generate the proper config
>  include $(XEN_ROOT)/Config.mk
> +export debug
>  
>  # Allow someone to change their config file
>  export KCONFIG_CONFIG ?= .config
> -- 
> 2.7.3
> 

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