[cfe-dev] Embedding Compiler Invocation in Object Files

[Robinson, Paul via cfe-dev]

I would not be keen on adding this sort of stuff to DW_AT_producer.
There's a DW_AT_description attribute that might be appropriate for this purpose.
--paulr

From: cfe-dev [mailto:cfe-dev-bounces at lists.llvm.org] On Behalf Of Keno Fischer via cfe-dev
Sent: Tuesday, June 14, 2016 10:08 AM
To: clang developer list
Subject: [cfe-dev] Embedding Compiler Invocation in Object Files

I wanted to revive the idea of adding a feature that would have clang embed its invocation in the created object file (like a compilation database, but internal to the object file). I know this was discussed on the mailing list a few years ago, but as far as I'm aware, there wasn't any progress on this. My use case for this is debugging (rather than reconstruct a clang AST from debug info, just re-parse the correct translation unit and get the complete AST), but I know there are other people interested in this functionality as well. For my use case, I think I'd be happy associating this with the DWARF compilation unit (how to represent this would be something to be discussed, putting it into DW_AT_producer is probably simplest, but there may be other options). Thoughts?
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