On Sat, Oct 19, 2024 at 2:37 AM Hari Bathini <hbathini@xxxxxxxxxxxxx> wrote:
>
> From: Naveen N Rao <naveen@xxxxxxxxxx>
>
> On powerpc, we would like to be able to make a pass on vmlinux.o and
> generate a new object file to be linked into vmlinux. Add a generic pass
> in Makefile.vmlinux that architectures can use for this purpose.
>
> Architectures need to select CONFIG_ARCH_WANTS_PRE_LINK_VMLINUX and must
> provide arch/<arch>/tools/Makefile with .arch.vmlinux.o target, which
> will be invoked prior to the final vmlinux link step.
>
> Signed-off-by: Naveen N Rao <naveen@xxxxxxxxxx>
> Signed-off-by: Hari Bathini <hbathini@xxxxxxxxxxxxx>
> --- a/scripts/link-vmlinux.sh
> +++ b/scripts/link-vmlinux.sh
> @@ -100,7 +100,7 @@ vmlinux_link()
> ${ld} ${ldflags} -o ${output} \
> ${wl}--whole-archive ${objs} ${wl}--no-whole-archive \
> ${wl}--start-group ${libs} ${wl}--end-group \
> - ${kallsymso} ${btf_vmlinux_bin_o} ${ldlibs}
> + ${kallsymso} ${btf_vmlinux_bin_o} ${arch_vmlinux_o} ${ldlibs}
> }
>
> # generate .BTF typeinfo from DWARF debuginfo
> @@ -198,6 +198,11 @@ fi
>
> ${MAKE} -f "${srctree}/scripts/Makefile.build" obj=init init/version-timestamp.o
>
> +arch_vmlinux_o=""
Nit: unnecessary double quotes.
arch_vmlinux_o=
is enough.
Other than that,
Acked-by: Masahiro Yamada <masahiroy@xxxxxxxxxx>
--
Best Regards
Masahiro Yamada
