xref: /dpdk/devtools/check-abi.sh (revision 8fdcd513)
1#!/bin/sh -e
2# SPDX-License-Identifier: BSD-3-Clause
3# Copyright (c) 2019 Red Hat, Inc.
4
5if [ $# != 2 ] && [ $# != 3 ]; then
6	echo "Usage: $0 refdir newdir [warnonly]" >&2
7	exit 1
8fi
9
10refdir=$1
11newdir=$2
12warnonly=${3:-}
13ABIDIFF_OPTIONS="--suppr $(dirname $0)/libabigail.abignore --no-added-syms"
14
15if [ ! -d $refdir ]; then
16	echo "Error: reference directory '$refdir' does not exist." >&2
17	exit 1
18fi
19incdir=$(find $refdir -type d -a -name include)
20if [ -z "$incdir" ] || [ ! -e "$incdir" ]; then
21	echo "WARNING: could not identify an include directory for $refdir, expect false positives..." >&2
22else
23	ABIDIFF_OPTIONS="$ABIDIFF_OPTIONS --headers-dir1 $incdir"
24fi
25
26if [ ! -d $newdir ]; then
27	echo "Error: directory to check '$newdir' does not exist." >&2
28	exit 1
29fi
30incdir2=$(find $newdir -type d -a -name include)
31if [ -z "$incdir2" ] || [ ! -e "$incdir2" ]; then
32	echo "WARNING: could not identify an include directory for $newdir, expect false positives..." >&2
33else
34	ABIDIFF_OPTIONS="$ABIDIFF_OPTIONS --headers-dir2 $incdir2"
35fi
36
37error=
38for dump in $(find $refdir -name "*.dump"); do
39	name=$(basename $dump)
40	if grep -qE "\<librte_*.*_octeontx2" $dump; then
41		echo "Skipped removed driver $name."
42		continue
43	fi
44	dump2=$(find $newdir -name $name)
45	if [ -z "$dump2" ] || [ ! -e "$dump2" ]; then
46		echo "Error: cannot find $name in $newdir" >&2
47		error=1
48		continue
49	fi
50	abidiff $ABIDIFF_OPTIONS $dump $dump2 || {
51		abiret=$?
52		echo "Error: ABI issue reported for 'abidiff $ABIDIFF_OPTIONS $dump $dump2'" >&2
53		error=1
54		echo
55		if [ $(($abiret & 3)) -ne 0 ]; then
56			echo "ABIDIFF_ERROR|ABIDIFF_USAGE_ERROR, this could be a script or environment issue." >&2
57		fi
58		if [ $(($abiret & 4)) -ne 0 ]; then
59			echo "ABIDIFF_ABI_CHANGE, this change requires a review (abidiff flagged this as a potential issue)." >&2
60		fi
61		if [ $(($abiret & 8)) -ne 0 ]; then
62			echo "ABIDIFF_ABI_INCOMPATIBLE_CHANGE, this change breaks the ABI." >&2
63		fi
64		echo
65	}
66done
67
68[ -z "$error" ] || [ -n "$warnonly" ]
69