Re: [PATCH 3/5] kbuild: add arch specific post-module-link pass

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On Sat, 6 Aug 2016 22:16:29 +0200
Sam Ravnborg <sam@xxxxxxxxxxxx> wrote:

> On Fri, Aug 05, 2016 at 10:12:01PM +1000, Nicholas Piggin wrote:
> > Add an option for architectures to pass over modules after they are
> > linked. powerpc will use this to fix up alternate instruction patch
> > relocations.
> > 
> > Signed-off-by: Nicholas Piggin <npiggin@xxxxxxxxx>
> > ---
> >  Documentation/kbuild/makefiles.txt | 6 ++++++
> >  Makefile                           | 1 +
> >  scripts/Makefile.modpost           | 8 ++++++++
> >  3 files changed, 15 insertions(+)
> > 
> > diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt
> > index 13f888a..f6c065b 100644
> > --- a/Documentation/kbuild/makefiles.txt
> > +++ b/Documentation/kbuild/makefiles.txt
> > @@ -952,6 +952,12 @@ When kbuild executes, the following steps are followed (roughly):
> >  	$(KBUILD_ARFLAGS) set by the top level Makefile to "D" (deterministic
> >  	mode) if this option is supported by $(AR).
> >  
> > +    KBUILD_MODPOST_TOOL   Arch-specific command to run after module link
> > +
> > +        $(KBUILD_MODPOST_TOOL) is used to add an arch-specific pass over
> > +        modules after their final link. E.g., powerpc uses this to adjust
> > +        relative branches of "alternate code patching" sections.
> > +  
> 
> This needs documentation in kbuild.txt, where there is a
> nearly full lst of KBUILD_ variables.

Thanks, I missed that.

Thanks,
Nick
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