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#!/bin/bash
set -eu
RET=0
if ! [[ -f "${LIB}" ]]; then
echo "Test library \"${LIB}\" does not exist"
exit 99;
fi
if ! [[ -n "${NM}" ]]; then
echo "NM environment variable not set"
exit 99;
fi
AVAIL_FUNCS="$(${NM} -D --format=bsd --defined-only ${LIB} | awk '{print $3}')"
REQ_FUNCS="$(cat ${ABI})"
NEW_ABI=$(echo "$AVAIL_FUNCS" | while read func; do
echo "$func" | grep -q "^_" && continue
echo "${REQ_FUNCS}" | grep -q "^${func}$" && continue
echo "$func"
done)
if [[ -n ${NEW_ABI} ]]; then
echo "New ABI detected - If intentional, update ${ABI}."
echo "${NEW_ABI}"
RET=1;
fi
REMOVED_ABI=$(echo "${REQ_FUNCS}" | while read func; do
echo "${AVAIL_FUNCS}" | grep -q "^${func}$" && continue
echo "${func}"
done)
if [[ -n ${REMOVED_ABI} ]]; then
echo "ABI break detected - required symbols no longer exported!"
echo "${REMOVED_ABI}"
RET=1
fi
exit ${RET}
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