> > +# This makes sure the $(obj) subdirectory exists even though vdso32/
quoted text
> > +# is not a kbuild sub-make subdirectory.
> > +override obj-dirs = $(dir $(obj)) $(obj)/vdso32/
> 
> Should we teach kbuild to create dirs specified in targets?
> Or we could 'fix' it so you do not need the override.

Something cleaner would be nice, yes.  I'll leave it to you to decide.

quoted text
> use "set -e; in front of this shell script to bail out early
> in case of errors.

Back when I knew something about make, all commands ran with sh -ec.
Ah, progress.  Anyway, the one you cited does not have any commands that
aren't tested with && or if already.  set -e would have no effect.

quoted text
> > +VDSO_LDFLAGS = -fPIC -shared $(call ld-option, -Wl$(comma)--hash-style=sysv)
> 
> Do you need to specify soname for 64-bit - seems missing?

Using this rule for the 64-bit vDSO is not in this patch.
Patch 18/18 defines VDSO_LDFLAGS_vdso.lds for this.

quoted text
> > +$(vdso-install-y): %.so: $(obj)/%.so.dbg FORCE
> >  	@mkdir -p $(MODLIB)/vdso
> >  	$(call cmd,vdso_install)
> Please use $(Q) in preference for @
> Then it is easier to debug using make V=1

This line is not being changed in this patch, so that is really a separate
question.  Other places in other Makefiles use @mkdir too, so if you are
concerned you could do a patch covering all of those.


Thanks,
Roland
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