[PATCH] elf: Try not pointing empty PT_LOAD segment's offset past EOF

[Bálint Réczey]

Hi,

Strip sometimes leaves file offset of empty PT_LOAD segment pointing
past end of file as observed on Ubuntu 19.10's gzip binary. This is
traditionally considered a non-issue as loaders tolerated that, but
WSL1's ELF loader does not run the gzip binary [1] due to this offset.

I have opened a bug [2] in bugzilla, but I was advised to send the
patch here, too.

Please consider accepting the patch. I believe this does not cause any
regression and it fixes ELF loading on WSL.

Thanks,
Balint

[1] https://github.com/microsoft/WSL/issues/4461
[2] https://sourceware.org/bugzilla/show_bug.cgi?id=25237
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