Nem használtam ilyeneket, de pl. FreeBSD portsban van egy vagon:
https://elfio.sourceforge.net/
https://crates.io/crates/elfcat
https://sourceware.org/elfutils/
https://dl.packetstormsecurity.net/linux/reverse-engineering/elf-0.5.4p…
https://www.muppetlabs.com/~breadbox/software/elfkickers.html