[Bug dynamic-link/30020] segfault in ld-linux after aug 2022

["adhemerval.zanella at linaro dot org" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=30020

--- Comment #10 from Adhemerval Zanella <adhemerval.zanella at linaro dot org> ---
(In reply to Pete Lomax from comment #9)
> Therein lies the nub. I would love to "fix the bogus binary", but have no
> idea what that segfault actually means, "for some reason" just isn't quite
> enough.
> 
> I have already patched the binary to appease readelf, as best I can, but it
> does not fix the problem, and further also fubars the running of it ld-linux
> first (and the fact that way still works proves at least to me there is
> nothing fundamentally wrong with that binary anyway).
> 
> What I an really here for is to find out what precisely changed in August
> 2022 and what precisely can I do about it.

You can try bisect by rebuilding your binary with -Wl,-dynamic-linker= (similar
to what --enable-hardcoded-path-in-tests) so you don't mess with your system.
It is quite time-consuming to debug it because patchelf does not work this
binary (and hexedtting is quite tedious), if you could provide a source code on
how to reproduce it would be immensely better.

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