I'm playing around with various ways at the moment to make it easier to address file contents and DWARF 5 is helping with DW_LCNT_MD5 here already. It lets you address a source file by MD5 hash which is pretty helpful but it still requires a separate system to actually resolve the sources.

I came across an LLVM extension recently (DW_LNCT_LLVM_source) which LLVM added to support debugging of generated GPU programs. I feel like this would be also solving my issue quite well. However I'm not sure how gimli thinks about LLVM extensions.

The reason I'm asking is because I wanted to use gimli's write interface for this but currently the logic that emits these DW_LNCT_ attributes is internal to the structs so it requires a patch to gimli to emit new ones at the moment.