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#!/bin/sh
#
# abi_checks.sh - check for possible abi changes
#
# Copyright (C) 2009 Michael Adam <obnox@samba.org>
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the Free
# Software Foundation; either version 3 of the License, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
# more details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, see <http://www.gnu.org/licenses/>.
#
#
# USAGE: abi_checks.sh LIBNAME header1 [header2 ...]
#
# This script creates symbol and signature lists from the provided header
# files with the aid of the mksyms.sh and mksigs.pl scripts (saved as
# $LIBNAME.exports.check and $LIBNAME.sigatures.check). It then compares
# the resulting files with the files $LIBNAME.exports and $LIBNME.signatures
# which it expects to find in the current directory.
#
LANG=C; export LANG
LC_ALL=C; export LC_ALL
LC_COLLATE=C; export LC_COLLATE
script=$0
dir_name=$(dirname ${script})
if test x"$1" = "x" ; then
echo "USAGE: ${script} libname header [header ...]"
exit 1
fi
libname="$1"
shift
if test x"$1" = "x" ; then
echo "USAGE: ${script} libname header [header ...]"
exit 1
fi
headers="$*"
exports_file=${libname}.exports
exports_file_check=${exports_file}.check
signatures_file=${libname}.signatures
signatures_file_check=${signatures_file}.check
${dir_name}/mksyms.sh awk ${exports_file_check} ${headers} 2>&1 > /dev/null
cat ${headers} | ${dir_name}/mksigs.pl > ${signatures_file_check} 2> /dev/null
normalize_exports_file() {
filename=$1
cat ${filename} \
| sed -e 's/^[ \t]*//g' \
| sed -e 's/^$//g' \
| sed -e 's/^#.*$//g' \
| sort | uniq > ${filename}.sort
}
normalize_exports_file ${exports_file}
normalize_exports_file ${exports_file_check}
normalize_exports_file ${signatures_file}
normalize_exports_file ${signatures_file_check}
diff -u ${exports_file}.sort ${exports_file_check}.sort
if test "x$?" != "x0" ; then
echo "WARNING: possible ABI change detected in exports!"
else
echo "exports check: OK"
fi
diff -u ${signatures_file}.sort ${signatures_file_check}.sort
if test "x$?" != "x0" ; then
echo "WARNING: possible ABI change detected in signatures!"
else
echo "signatures check: OK"
fi
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