On Wed, Mar 4, 2026 at 7:32 PM Josh Poimboeuf <[email protected]> wrote:
>
> Add support for cross-compilation.  The user must export ARCH, and
> either CROSS_COMPILE or LLVM.
>
> Signed-off-by: Josh Poimboeuf <[email protected]>
> ---
>  scripts/livepatch/klp-build | 11 ++++++++++-
>  1 file changed, 10 insertions(+), 1 deletion(-)
>
> diff --git a/scripts/livepatch/klp-build b/scripts/livepatch/klp-build
> index 809e198a561d..b6c057e2120f 100755
> --- a/scripts/livepatch/klp-build
> +++ b/scripts/livepatch/klp-build
> @@ -404,6 +404,14 @@ validate_patches() {
>         revert_patches
>  }
>
> +cross_compile_init() {
> +       if [[ -v LLVM ]]; then
> +               OBJCOPY=llvm-objcopy
> +       else
> +               OBJCOPY="${CROSS_COMPILE:-}objcopy"
> +       fi
> +}

Shall we show a specific warning if
  - ARCH is set; and
  - ARCH is not the same as (uname -m); and
  - neither LLVM nor CROSS_COMPILE is set.

Thanks,
Song

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