#!/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]" >&2 exit 1 fi refdir=$1 newdir=$2 warnonly=${3:-} ABIDIFF_SUPPRESSIONS=$(dirname $(readlink -f $0))/libabigail.abignore ABIDIFF_OPTIONS="--suppr $ABIDIFF_SUPPRESSIONS --no-added-syms" if [ ! -d $refdir ]; then echo "Error: reference directory '$refdir' does not exist." >&2 exit 1 fi incdir=$(find $refdir -type d -a -name include) if [ -z "$incdir" ] || [ ! -e "$incdir" ]; then echo "WARNING: could not identify an include directory for $refdir, expect false positives..." >&2 else ABIDIFF_OPTIONS="$ABIDIFF_OPTIONS --headers-dir1 $incdir" fi if [ ! -d $newdir ]; then echo "Error: directory to check '$newdir' does not exist." >&2 exit 1 fi incdir2=$(find $newdir -type d -a -name include) if [ -z "$incdir2" ] || [ ! -e "$incdir2" ]; then echo "WARNING: could not identify an include directory for $newdir, expect false positives..." >&2 else ABIDIFF_OPTIONS="$ABIDIFF_OPTIONS --headers-dir2 $incdir2" fi export newdir ABIDIFF_OPTIONS ABIDIFF_SUPPRESSIONS export diff_func='run_diff() { lib=$1 name=$(basename $lib) if grep -q "; SKIP_LIBRARY=${name%.so.*}\>" $ABIDIFF_SUPPRESSIONS; then echo "Skipped $name" >&2 return 0 fi # Look for a library with the same major ABI version lib2=$(find $newdir -name "${name%.*}.*" -a ! -type l) if [ -z "$lib2" ] || [ ! -e "$lib2" ]; then echo "Error: cannot find $name in $newdir" >&2 return 1 fi abidiff $ABIDIFF_OPTIONS $lib $lib2 || { abiret=$? echo "Error: ABI issue reported for abidiff $ABIDIFF_OPTIONS $lib $lib2" >&2 if [ $(($abiret & 3)) -ne 0 ]; then echo "ABIDIFF_ERROR|ABIDIFF_USAGE_ERROR, this could be a script or environment issue." >&2 fi if [ $(($abiret & 4)) -ne 0 ]; then echo "ABIDIFF_ABI_CHANGE, this change requires a review (abidiff flagged this as a potential issue)." >&2 fi if [ $(($abiret & 8)) -ne 0 ]; then echo "ABIDIFF_ABI_INCOMPATIBLE_CHANGE, this change breaks the ABI." >&2 fi return 1 } }' error= find $refdir -name "*.so.*" -a ! -type l | xargs -n1 -P0 sh -c 'eval "$diff_func"; run_diff $0' || error=1 [ -z "$error" ] || [ -n "$warnonly" ]