Bug#841438: --enable-default-pie breaks kernel build on amd64

[Bálint Réczey <balint@balintreczey.hu>]

Dear Ubuntu Developers,

Have you tried upstreaming the patch? It would be a great help.

Cheers,
Balint


2016-10-20 19:05 GMT+02:00 Gianfranco Costamagna <locutusofborg@debian.org>:
> control: severity -1 normal
> control: reassign -1 src:linux
> control: affects -1 gcc-6
>
> Hi Linux Kernel maintainers,
> as you already know, the default PIE flag breaks the kernel build, can I suggest you to apply a similar patch
> to the one that Ubuntu appplied some time ago?
> https://bugs.launchpad.net/ubuntu/+source/gcc-defaults/+bug/1574982/comments/39
>
> --- a/Makefile
> +++ b/Makefile
> @@ -612,6 +612,12 @@ endif # $(dot-config)
>  # Defaults to vmlinux, but the arch makefile usually adds further targets
>  all: vmlinux
>
> +# force no-pie for distro compilers that enable pie by default
> +KBUILD_CFLAGS += $(call cc-option, -fno-pie)
> +KBUILD_CFLAGS += $(call cc-option, -no-pie)
> +KBUILD_AFLAGS += $(call cc-option, -fno-pie)
> +KBUILD_CPPFLAGS += $(call cc-option, -fno-pie)
> +
>  # The arch Makefile can set ARCH_{CPP,A,C}FLAGS to override the default
>  # values of the respective KBUILD_* variables
>  ARCH_CPPFLAGS :=
>
> thanks
>
> Gianfranco
>