[Android-virt] [PATCH 1/6] Makefile: Improve $(KERNEL) target

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On 7 December 2011 14:39, Christoffer Dall <cdall at cs.columbia.edu> wrote:
> The dependency graph is this:
>
> zImage <- uImage <- boot-wrapper
>
> so if uImage has changed, so has zImage. Or am I missing something?
>
> Anyway, it's not a big issue for me, I am just trying to avoid someone
> building their kernel using plain 'make' and not understanding why the
> boot-wrapper doen't reflect those changes.

Ah, I understand the problem now.

In fact patch 6 fixes this, because the 'force' dependency on the
$(KERNEL_SRC)/arch/arm/boot/uImage target means we will always run
the rule for that target, ie we will always invoke the kernel makefile
and ask it to make sure the uImage is up to date. (I just tested this
and it does do the right thing.)

I hadn't spotted this wrinkle, or I'd have combined the two patches
somehow instead.

-- PMM


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