#! /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