On Fri, Feb 09, 2018 at 10:24:33PM +0000, Chris Wilson wrote: > Quoting Arnd Bergmann (2018-02-02 14:54:28) > > Here are three bugfixes for x86 that I needed to get LTO-enabled > > kernels to build reliably. I'm not sure abouto that first one > > though. > > Is there a howto on how to build LTO kernels? I tried Andi's lto-415-2 > branch, but linking fails with lots of arcane PIE-vs-PIC errors. We are > wanting to investigate how we can use LTO to reduce our (i915.ko) module > size (by e.g. supporting a subset of chipsets).
What are the errors? Kernel shouldn't use PIE or PIC -Andi