How to undo strip - i.e. add symbols back to stripped binary

Question

I have a stripped binary and symbol-file. Is it possible to add the symbols back to binary and create an unstripped binary.

My use-case is using this binary w/ val

Answer 1

elfutils comes with the tool eu-unstrip which can be used to merge symbol files with executables. The result can then be used in place of the stripped version.