Messages in this thread | | | Date | Thu, 29 Jan 2015 17:51:32 +0000 | From | Marc Zyngier <> | Subject | Re: randconfig bug: ARM/KVM link error in hyp_idmap section |
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On 29/01/15 17:40, Christoffer Dall wrote: > > > On Thu, Jan 29, 2015 at 5:01 PM, Marc Zyngier <marc.zyngier@arm.com > <mailto:marc.zyngier@arm.com>> wrote: > > Hi Arnd, > > On 29/01/15 15:53, Arnd Bergmann wrote: > > On Thursday 29 January 2015 16:23:42 Christoffer Dall wrote: > >> the changes look ok, but I don't understand why putting stuff in > rodata is > >> a good solution, is it simply by chance that the linker then > generates > >> fewer veneers there? I think we're only branching internally in > the hyp > >> idmap text page anyhow, so wondering why this appears in the > first place... > >> hmmm. > > > > The linker will not generate any veneers for .rodata because it > does not > > expect executable code in there. As I said, above, this is also > correct > > because it matches how we access that section (read-only, never > execute). > > Not sure about the later point. We only copy the code if it is not page > aligned, and use it in place otherwise. I guess we could change that, > but we'd need the same change for arm64. > > > I'd be ok with changing that...
In which case I have no further objection.
Thanks,
M. -- Jazz is not dead. It just smells funny...
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