On Wed, May 31, 2023 at 3:35 PM Frank Ch. Eigler <fche@redhat.com> wrote:

> > [...]
> > It would be really nice if there were, a DEBUGINFOD_LOCAL_PATH
> environment
> > variable that provided a colon-separated list of directories in the GDB
> > `.build-id/<xx>/<xxxxxx>` [...]
>
> Please note that $DEBUGINFOD_URLS can already include file:// URLs
> that identify local filesystems whose directory structure mirrors the
> webapi.  The old-school /usr/lib/debug/.build-id/xx/xxxxxxxx.debug
> file hierarchy doesn't match that, and of course lacks source code
> entirely.
>

Ah, I had forgotten completely that file URLs worked out of the box
(libcurl, duh).
When we tried that way back when, the issue was just that it actually does
a libcurl fetch
out of that path and saves another copy of the file into the cache.

So I guess, sans the format, the feature request would just be that it
would have a shortcut
for file URLs to produce the path directly in response to e.g. a
debuginfod_find_debuginfo,
rather than making a copy of the file via libcurl.

Does that seem like a reasonable patch?

Daniel Thornburgh | dthorn@google.com