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SubjectRe: [PATCH v8 03/12] x86/retpoline: Add initial retpoline support
On Thu, Jan 11, 2018 at 09:46:25PM +0000, David Woodhouse wrote:
> +/*
> + * This should be used immediately before a retpoline alternative. It tells
> + * objtool where the retpolines are so that it can make sense of the control
> + * flow by just reading the original instruction(s) and ignoring the
> + * alternatives.
> + */
> +.macro ANNOTATE_NOSPEC_ALTERNATIVE
> + .Lannotate_\@:
> + .pushsection .discard.nospec
> + .long .Lannotate_\@ - .
> + .popsection
> +.endm

Hey Josh, what happened to parsing only the retpoline-related
.altinstructions sections with the X86_FEATURE bits? Or is this
annotation used for something more additionally?

Thx.

--
Regards/Gruss,
Boris.

Good mailing practices for 400: avoid top-posting and trim the reply.

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