#!/usr/bin/env bash

if (( $# != 3 )); then

echo "Usage:"

echo "verify-entrypoints.sh <path to shared library> <path to entries.c file> <path to NM command>"

exit 1

fi

nmCommand=$3

IFS=$'\n'

dllList=()

for line in $($nmCommand $1); do

pattern='^[[:xdigit:]]+ T _?([[:alnum:]_]+)'

if [[ $line =~ $pattern ]]; then

# skip symbols that we don't want to consider

case ${BASH_REMATCH[1]} in

init) ;;

fini) ;;

etext) ;;

PROCEDURE_LINKAGE_TABLE_) ;;

*) dllList+=(${BASH_REMATCH[1]});;

esac

fi

done

entriesList=()

for line in $(<$2); do

pattern='^[[:space:]]+DllImportEntry\(([[:alnum:]_]+)\)'

if [[ $line =~ $pattern ]]; then

entriesList+=(${BASH_REMATCH[1]})

fi

done

diffList=$(echo -n ${entriesList[@]} ${dllList[@]} | tr " " "\n" | sort | uniq -u)

if [ -n "$diffList" ]; then

echo "ERROR: $2 file did not match entries exported from $1" >&2

echo "DIFFERENCES FOUND: " >&2

echo $diffList | tr " " "," >&2

exit 2

fi