Re: [PATCH] Make x86 use $TARGET-readelf like all the other arches.

From: Kees Cook
Date: Sat May 20 2017 - 19:46:38 EST


On Sat, May 20, 2017 at 1:03 PM, Rob Landley <rob@xxxxxxxxxxx> wrote:
> From: Rob Landley <rob@xxxxxxxxxxx>
>
> My cross-compile environment doesn't provide an unprefixed
> readelf in the $PATH, which works fine on every target but x86,
> where you get a bunch of "/bin/sh: 1: readelf: not found"
> messages (but the result still works anyway).
>
> Signed-off-by: Rob Landley <rob@xxxxxxxxxxx>

Ooops, thanks for the catch!

Acked-by: Kees Cook <keescook@xxxxxxxxxxxx>

-Kees

> ---
>
> arch/x86/boot/compressed/Makefile | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile
> index 44163e8..2c860ad 100644
> --- a/arch/x86/boot/compressed/Makefile
> +++ b/arch/x86/boot/compressed/Makefile
> @@ -94,7 +94,7 @@ vmlinux-objs-$(CONFIG_EFI_MIXED) += $(obj)/efi_thunk_$(BITS).o
> quiet_cmd_check_data_rel = DATAREL $@
> define cmd_check_data_rel
> for obj in $(filter %.o,$^); do \
> - readelf -S $$obj | grep -qF .rel.local && { \
> + ${CROSS_COMPILE}readelf -S $$obj | grep -qF .rel.local && { \
> echo "error: $$obj has data relocations!" >&2; \
> exit 1; \
> } || true; \



--
Kees Cook
Pixel Security