Re: [PATCH v4 3/6] x86/boot: Reuse code to relocate trampoline

[Anthony PERARD <anthony.perard@vates.tech>]

On Mon, Oct 14, 2024 at 09:53:29AM +0100, Frediano Ziglio wrote:
> diff --git a/xen/arch/x86/boot/Makefile b/xen/arch/x86/boot/Makefile
> index 23ad274c89..ca258a9729 100644
> --- a/xen/arch/x86/boot/Makefile
> +++ b/xen/arch/x86/boot/Makefile
> @@ -1,12 +1,16 @@
>  obj-bin-y += head.o
>  obj-bin-y += built_in_32.o
> +obj-bin-y += $(obj64)

Could you move this so $(obj64) is fully set when added to $(obj-bin-y)?
There's no garanties that this is going to keep working. We already have
"obj-y :=", so it is possible we will have "obj-bin-y :=" one day. (Or
that we get rid of $(obj-bin-y) because it becomes unnecessary.)

>  obj32 := cmdline.32.o
>  obj32 += reloc.32.o
> +obj32 += reloc-trampoline.32.o
>  
> -nocov-y   += $(obj32)
> -noubsan-y += $(obj32)
> -targets   += $(obj32)
> +obj64 := reloc-trampoline.o
> +
> +nocov-y   += $(obj32) $(obj64)
> +noubsan-y += $(obj32) $(obj64)
> +targets   += $(obj32) $(obj64)

Technically, the change to $(targets) isn't necessary, $(obj-bin-y)
should already be added to it.

Cheers,

-- 

Anthony Perard | Vates XCP-ng Developer

XCP-ng & Xen Orchestra - Vates solutions

web: https://vates.tech