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bug#39503: Supporting elf-debuginfod (debug symbol server)

From: Ludovic Courtès
Subject: bug#39503: Supporting elf-debuginfod (debug symbol server)
Date: Sat, 08 Feb 2020 00:07:22 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux)

Hello Guix!

I’ve just watched Mark’s very nice talk about debuginfod and and I’d
like to work towards running an instance of it on ci.guix.gnu.org:


What’s missing today is configuring GCC with ‘--enable-linker-build-id’
(which is not the default, unlike what Mark says in the talk :-)).

If we do that, I wonder if we can stop using ‘.gnu_debuglink’ (see the
‘strip’ phase in (guix build gnu-build-system)).

Also, I suspect build IDs wouldn’t mesh well with grafting: unless we
rewrite them, the same build ID would match both the ungrafted and the
grafted variant.  Is that a problem?  Not sure.  (Currently (guix build
debug-link) recomputes ‘.gnu_debuglink’ upon grafting so that the links
remain valid.)



PS: I found Eelco Dolstra’s dwarffs to be very smart, too!

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