dpdk-fm10k/devtools/check-abi.sh
David Marchand cfe4ca1021 devtools: give some hints for ABI errors
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@redhat.com>
Acked-by: Ray Kinsella <mdr@ashroe.eu>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Aaron Conole <aconole@redhat.com>
2020-07-16 08:47:09 +02:00

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#!/bin/sh -e
# SPDX-License-Identifier: BSD-3-Clause
# Copyright (c) 2019 Red Hat, Inc.
if [ $# != 2 ] && [ $# != 3 ]; then
echo "Usage: $0 refdir newdir [warnonly]"
exit 1
fi
refdir=$1
newdir=$2
warnonly=${3:-}
ABIDIFF_OPTIONS="--suppr $(dirname $0)/libabigail.abignore --no-added-syms"
if [ ! -d $refdir ]; then
echo "Error: reference directory '$refdir' does not exist."
exit 1
fi
incdir=$(find $refdir -type d -a -name include)
if [ -z "$incdir" ] || [ ! -e "$incdir" ]; then
echo "WARNING: could not identify a include directory for $refdir, expect false positives..."
else
ABIDIFF_OPTIONS="$ABIDIFF_OPTIONS --headers-dir1 $incdir"
fi
if [ ! -d $newdir ]; then
echo "Error: directory to check '$newdir' does not exist."
exit 1
fi
incdir2=$(find $newdir -type d -a -name include)
if [ -z "$incdir2" ] || [ ! -e "$incdir2" ]; then
echo "WARNING: could not identify a include directory for $newdir, expect false positives..."
else
ABIDIFF_OPTIONS="$ABIDIFF_OPTIONS --headers-dir2 $incdir2"
fi
error=
for dump in $(find $refdir -name "*.dump"); do
name=$(basename $dump)
# skip glue drivers, example librte_pmd_mlx5_glue.dump
# We can't rely on a suppression rule for now:
# https://sourceware.org/bugzilla/show_bug.cgi?id=25480
if grep -qE "\<soname='[^']*_glue\.so\.[^']*'" $dump; then
echo "Skipped glue library $name."
continue
fi
dump2=$(find $newdir -name $name)
if [ -z "$dump2" ] || [ ! -e "$dump2" ]; then
echo "Error: can't find $name in $newdir"
error=1
continue
fi
abidiff $ABIDIFF_OPTIONS $dump $dump2 || {
abiret=$?
echo "Error: ABI issue reported for 'abidiff $ABIDIFF_OPTIONS $dump $dump2'"
error=1
echo
if [ $(($abiret & 3)) -ne 0 ]; then
echo "ABIDIFF_ERROR|ABIDIFF_USAGE_ERROR, this could be a script or environment issue."
fi
if [ $(($abiret & 4)) -ne 0 ]; then
echo "ABIDIFF_ABI_CHANGE, this change requires a review (abidiff flagged this as a potential issue)."
fi
if [ $(($abiret & 8)) -ne 0 ]; then
echo "ABIDIFF_ABI_INCOMPATIBLE_CHANGE, this change breaks the ABI."
fi
echo
}
done
[ -z "$error" ] || [ -n "$warnonly" ]