Comment by wruza

It is easy to not let addresses change, because compilers without “-O2+“ do lots of extra stack ops. Documentation is not needed there, because it is overflow fix, it is catchable by debugger and both caller and callee are right in bt. And the fact that this program was not recompiled for 20 years actually adds to the possibility of what was done. Modern compilers are much less forgiving.

Anyway, your points are pretty weak and oh-magic-driven, and I don’t see any reason gp comment to be gray or work to be called stellar. Though of course it was done by asm-skilled person.