Clang-based PIE builds don't run on QEMU Multiboot x86_64

[razvand]

Describe the bug

Building x86_64 Unikraft images as PIE won't run on QEMU Multiboot x86_64. It ends up in some sort of an infinite loop with the output:

Booting from ROM..

Steps to reproduce

Run the following commands (you can use copy-paste):

git clone https://github.com/unikraft/app-helloworld helloworld
cd helloworld/
mkdir .unikraft
git clone https://github.com/unikraft/unikraft .unikraft/unikraft
wget https://raw.githubusercontent.com/unikraft-upb/maintainer-tools/staging/workdir/copy/base/apps/helloworld/.config.helloworld-qemu-x86_64-pie
UK_DEFCONFIG=$(pwd)/.config.helloworld-qemu-x86_64-pie make defconfig
make CC=clang -j $(nproc)
qemu-system-x86_64 -kernel build/helloworld_qemu-x86_64 -nographic

Expected behavior

There should be a Hello, World! message being printed and the QEMU process would end.

Which architectures were you using or does this bug affect?

x86_64

Which platforms were you using or does this bug affect?

kvm

Relevant log output

No response