[PATCH 1/2] powerpc/vmlinux.lds: Explicitly retain .gnu.hash

[Michael Ellerman]

On Thu, 2020-02-27 at 04:59:32 UTC, Michael Ellerman wrote:
> Relocatable kernel builds produce a warning about .gnu.hash being an
> orphan section:
> 
>   ld: warning: orphan section `.gnu.hash' from `linker stubs' being placed in section `.gnu.hash'
> 
> If we try to discard it the build fails:
> 
>   ld -EL -m elf64lppc -pie --orphan-handling=warn --build-id -o
>     .tmp_vmlinux1 -T ./arch/powerpc/kernel/vmlinux.lds --whole-archive
>     arch/powerpc/kernel/head_64.o arch/powerpc/kernel/entry_64.o
>     ...
>     sound/built-in.a net/built-in.a virt/built-in.a --no-whole-archive
>     --start-group lib/lib.a --end-group
>   ld: could not find section .gnu.hash
> 
> So add an entry to explicitly retain it, as we do for .hash.
> 
> Signed-off-by: Michael Ellerman <mpe at ellerman.id.au>

Applied to powerpc next.

https://git.kernel.org/powerpc/c/ead983604c5a390f1e3ce085945b60e82f08dbbe

cheers