Re: [Qemu-trivial] [Qemu-devel] [PATCH] hw/ide/ich: Compile ich.c only if CONFIG_PCI is also set

[Wei Yang <richardw.yang@linux.intel.com>]

On Tue, Feb 19, 2019 at 04:55:57PM +0100, Thomas Huth wrote:
>With the upcoming Kconfig-like build system, it will be easy to
>build also version of QEMU that only contain a single machine. Some

Sorry for my poor English.

What is also version?

>of these machines (like the ARM cubieboard) use CONFIG_AHCI for an
>AHCI sysbus device, but do not use CONFIG_PCI since they do not feature
>a PCI bus. In this case linking fails:
>
>../hw/ide/ich.o: In function `pci_ich9_ahci_realize':
>hw/ide/ich.c:124: undefined reference to `pci_allocate_irq'
>hw/ide/ich.c:126: undefined reference to `pci_register_bar'
>hw/ide/ich.c:128: undefined reference to `pci_register_bar'
>hw/ide/ich.c:131: undefined reference to `pci_add_capability'
>hw/ide/ich.c:147: undefined reference to `msi_init'
>../hw/ide/ich.o: In function `pci_ich9_uninit':
>hw/ide/ich.c:158: undefined reference to `msi_uninit'
>../hw/ide/ich.o:(.data.rel+0x50): undefined reference to `vmstate_pci_device'
>
>Thus we must only compile ich.c if CONFIG_PCI is also set.
>
>Signed-off-by: Thomas Huth <thuth@redhat.com>
>---
> hw/ide/Makefile.objs | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
>diff --git a/hw/ide/Makefile.objs b/hw/ide/Makefile.objs
>index a142add..dfe53af 100644
>--- a/hw/ide/Makefile.objs
>+++ b/hw/ide/Makefile.objs
>@@ -9,6 +9,6 @@ common-obj-$(CONFIG_IDE_MMIO) += mmio.o
> common-obj-$(CONFIG_IDE_VIA) += via.o
> common-obj-$(CONFIG_MICRODRIVE) += microdrive.o
> common-obj-$(CONFIG_AHCI) += ahci.o
>-common-obj-$(CONFIG_AHCI) += ich.o
>+common-obj-$(call land,$(CONFIG_AHCI),$(CONFIG_PCI)) += ich.o
> common-obj-$(CONFIG_ALLWINNER_A10) += ahci-allwinner.o
> common-obj-$(CONFIG_IDE_SII3112) += sii3112.o
>-- 
>1.8.3.1
>

-- 
Wei Yang
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