> I'm curios to know what happens if nobody defines __start_notes and
> __end_notes. We'll use the extern-attribute-weak thing, but those two
> locations won't even get instantiated in vmlinux, I think.
>
> And the code relies upon the difference between two non-existent
> attribute-weak locations being zero.
The well-defined meaning of weak externs is that they resolve to zero if
undefined. It relies on zero-zero being zero. It relies on noone defining
one of __start_notes and __stop_notes but not both.
Thanks,
Roland
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