[dpdk-dev] [PATCH] devtools: give some hints for ABI errors

[Kinsella, Ray]

On 08/07/2020 11:22, David Marchand wrote:
> abidiff can provide some more information about the ABI difference it
> detected.
> In all cases, a discussion on the mailing must happen but we can give
> some hints to know if this is a problem with the script calling abidiff,
> a potential ABI breakage or an unambiguous ABI breakage.
> 
> Signed-off-by: David Marchand <david.marchand at redhat.com>
> ---
>  devtools/check-abi.sh | 16 ++++++++++++++--
>  1 file changed, 14 insertions(+), 2 deletions(-)
> 
> diff --git a/devtools/check-abi.sh b/devtools/check-abi.sh
> index e17fedbd9f..521e2cce7c 100755
> --- a/devtools/check-abi.sh
> +++ b/devtools/check-abi.sh
> @@ -50,10 +50,22 @@ for dump in $(find $refdir -name "*.dump"); do
>  		error=1
>  		continue
>  	fi
> -	if ! abidiff $ABIDIFF_OPTIONS $dump $dump2; then
> +	abidiff $ABIDIFF_OPTIONS $dump $dump2 || {
> +		abiret=$?
>  		echo "Error: ABI issue reported for 'abidiff $ABIDIFF_OPTIONS $dump $dump2'"
>  		error=1
> -	fi
> +		echo
> +		if [ $(($abiret & 3)) != 0 ]; then
> +			echo "ABIDIFF_ERROR|ABIDIFF_USAGE_ERROR, please report this to dev at dpdk.org."
> +		fi
> +		if [ $(($abiret & 4)) != 0 ]; then
> +			echo "ABIDIFF_ABI_CHANGE, this change requires a review (abidiff flagged this as a potential issue)."
> +		fi
> +		if [ $(($abiret & 8)) != 0 ]; then
> +			echo "ABIDIFF_ABI_INCOMPATIBLE_CHANGE, this change breaks the ABI."
> +		fi
> +		echo
> +	}
>  done
>  
>  [ -z "$error" ] || [ -n "$warnonly" ]
> 

Acked-by: Ray Kinsella <mdr at ashroe.eu>