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Date: Tue, 18 Oct 2016 21:34:35 +0800
From: Fam Zheng <famz@redhat.com>
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Subject: Re: [Qemu-devel] [RFC v5 0/8] KVM PCI/MSI passthrough with mach-virt
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To: Auger Eric <eric.auger@redhat.com>
Cc: qemu-devel@nongnu.org, eric.auger.pro@gmail.com, peter.maydell@linaro.org, qemu-arm@nongnu.org, alex.williamson@redhat.com, pranav.sawargaonkar@gmail.com, diana.craciun@freescale.com, Bharat.Bhushan@freescale.com, drjones@redhat.com, christoffer.dall@linaro.org, fkan@apm.com

On Mon, 10/17 22:56, Auger Eric wrote:
> > make[1]: *** No rule to make target `../hw/core/platform-bus-stub.o', needed by `qemu-system-x86_64'.  Stop.
> I can't figure out why this rule is missing?
> 
> I compiled on x86 and aarch64 with
> ./configure --target-list="x86_64-softmmu" --enable-werror and it looks
> OK. What do I miss here?

I think the reason it doesn't work is this: common-obj-y objects are built as
prerequisite of $(SUBDIR_RULES) which is defined in Makefile, from which the
unnest of common-obj-y doesn't include this stub object, because Makefile
doesn't read default-config; later make enters Makefile.target, this time
common-obj-y _includes_ platform-bus-stub.o, but the object rule doesn't work
there.

I think the easiest solution is still move the stub function to stubs/, or
otherwise you need to fix Makefile or rules.mak for this to work.

Fam