#! /bin/sh -e SCRATCH=scratch/$(basename "$0" .sh) PATCHELF=$(readlink -f "../src/patchelf") rm -rf "${SCRATCH}" mkdir -p "${SCRATCH}" cp simple "${SCRATCH}"/ cp libfoo.so "${SCRATCH}"/ cp libbar.so "${SCRATCH}"/ cd "${SCRATCH}" libcldd=$(ldd ./simple | awk '/ => / { print $3 }' | grep -E "(libc(-[0-9.]*)*.so|ld-musl)") # We have to set the soname on these libraries ${PATCHELF} --set-soname libbar.so ./libbar.so # Add a libbar.so so we can rewrite it later ${PATCHELF} --add-needed libbar.so ./simple # Make the NEEDED in libfoo the same as simple # This is a current "bug" in musl # https://www.openwall.com/lists/musl/2021/12/21/1 ${PATCHELF} --replace-needed libbar.so "$(readlink -f ./libbar.so)" ./libfoo.so ${PATCHELF} --replace-needed libc.so.6 "${libcldd}" \ --replace-needed libbar.so "$(readlink -f ./libbar.so)" \ --add-needed "$(readlink -f ./libfoo.so)" \ ./simple exitCode=0 ./simple || exitCode=$? if test "$exitCode" != 0; then ldd ./simple exit 1 fi