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Re: contrasting elfutils debuginfod and clr-debug-info server


On 2/5/2020 11:14 AM, Frank Ch. Eigler wrote:
Hi, Arjan -

                      clear-linux                                elfutils

indexed             by filename                                by buildid

actually the clear side provides both build id and filename, the
tools on the client (gdb and the like) try buildid first, and fall
back to filename, and we just do both

AIUI that works by using the "/usr/lib/debug/.build-id/HE/XCODE" as the
key, i.e., the build-id as a file name.

sure but it's not "/usr/bin/true" of which  you might have different versions over
the lifespan of a distro through its updates

(e.g. you can connect gdb to a process that got updated on disk later and still get the right answers)


the disinction of having the "/.build-id/" prefix versus just the code is not a huge difference
(so all the things you can do with just the number you can do with the prefix added as well)


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