RE: [PATCH 20/22] x86,word-at-a-time: Remove .fixup usage

David Laight
2021-11-10T10:46:48Z

From: Peter Zijlstra
> Sent: 09 November 2021 21:08
...
>
> GCC does the same, but I wanted to have the exception stuff be in
> .text.cold, but alas it doesn't do that. I left the attribute because of
> it's descriptive value.
>
> > Unless the cold attribute is helping move
> > ("shrink-wrap"?) the basic block to a whole other section
> > (.text.cold.)?
>
> I was hoping it would do that, but it doesn't on gcc-11.

Wouldn't moving part of a function to .text.cold (or .text.unlikely)
generate the same problems with the stack backtrace code as the
.text.fixup section you are removing had??

David

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