[Bug backends/21541] No error handling for missing backends

[mark at klomp dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=21541

Mark Wielaard <mark at klomp dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|eu-readelf --notes fails to |No error handling for
                   |dump PRSTATUS data?         |missing backends

--- Comment #3 from Mark Wielaard <mark at klomp dot org> ---
(In reply to myocytebd from comment #2)
> I looked at: libebl/eblopenbackend.c,
> and found openbackend() implementation surprising:
> 1. It doesn't try relative path from the executable.
> 2. It doesn't try the path from --prefix.
> 3. When it failed to load, it doesn't print any message.

Yes, this has come up before and it is at least surprising to users.
Lets keep this bug open to add some error handling to the ebl backend loading
code so the tools can give at least a warning.

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