Nicholas Piggin <npig...@gmail.com> writes:
> The boot wrapper performs its own relocations and does not require
> PT_INTERP segment.
>
> Without this option, binutils 2.28 and newer tries to create a program
> header segment due to PT_INTERP, and the link fails because there is no
> space for it.
2.28 is not released yet though is it?
So can we just declare versions with that behaviour broken?
> diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper
> index 404b3aa..cd941a8 100755
> --- a/arch/powerpc/boot/wrapper
> +++ b/arch/powerpc/boot/wrapper
> @@ -181,6 +181,13 @@ case "$elfformat" in
> elf32-powerpc) format=elf32ppc ;;
> esac
>
> +# Do not include PT_INTERP segment when linking pie. Non-pie linking
> +# just ignores this option.
> +LD_VERSION=$(${CROSS}ld --version | $srctree/scripts/ld-version.sh)
> +LD_NO_DL_MIN_VERSION=$(echo 2.26 | $srctree/scripts/ld-version.sh)
> +if [ "$LD_VERSION" -ge "$LD_NO_DL_MIN_VERSION" ] ; then
> + nodl="--no-dynamic-linker"
> +fi
Some distros (RHEL at least?), ship the wrapper as a standalone script.
So I don't think we can call things in $srctree. Or at least I don't
know how that's supposed to work when it's shipped standalone.
We're also basically reinventing ld-option, which is a PITA.
cheers
