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#!/bin/bash
# ---HELP---
# check if exported symbols match up with header content and the shared object symbol table
# Must be run from rtrlibs root dir.
# ---HELP---
SO_SYMBOL_WHITELIST=(__bss_start _edata _end _fini _init __gcov_master __gcov_sort_n_vals __gcov_var)
ERROR=0
# Functions annoted with RTRLIB_EXPORT
EXPORTS=$(
ctags -x --c-kinds=fp $(find rtrlib -iname '*.c' ! -name '*tommy*') |
grep 'RTRLIB_EXPORT' | awk '{ print $1 }' |
sort)
# Functions found in public headers
HEADER_SYMBOLS=$(
ctags -x --c-kinds=fp $(find rtrlib -iname '*.h' -type f ! -name '*_private.h' ! -name '*tommy*') |
awk '{ print $1 }' |
sort)
# Symbols found in librtrs dynamic export table
SO_SYMBOLS=$(nm -g --defined-only librtr.so | awk '{ print $3 }' | sort)
# Filter known false positives in dynamic symbol table
for symbol in "${SO_SYMBOL_WHITELIST[@]}"; do
SO_SYMBOLS=$(echo "${SO_SYMBOLS}" | grep -v "^${symbol}\$")
done
# check for equality of $EXPORTS AND $HEADER_SYMBOLS
diff -q <(echo "$EXPORTS") <(echo "$HEADER_SYMBOLS") > /dev/null
if [[ $? -ne 0 ]]; then
echo "Functions annotated for export are not equal to functions found in public header!"
comm <(echo "$EXPORTS") <(echo "$HEADER_SYMBOLS")
ERROR=1
fi
echo
# check for equality of $HEADER_SYMBOLS and $SO_SYMBOLS
diff -q <(echo "$HEADER_SYMBOLS") <(echo "$SO_SYMBOLS") > /dev/null
if [[ $? -ne 0 ]]; then
echo "Functions found in public header are not equal to exported functions!"
comm <(echo "$HEADER_SYMBOLS") <(echo "$SO_SYMBOLS")
ERROR=1
fi
exit $ERROR
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