Re: [PATCH] virtio-gpu: only compile virtio-gpu-3d.c for CONFIG_VIRGL=y

[Philippe Mathieu-Daudé]

On 10/26/20 3:28 PM, Gerd Hoffmann wrote:
> There is no actual code in the CONFIG_VIRGL=n case.  So building is
> (a) pointless and (b) makes macos ranlib complain.
> 
> Reported-by: Paolo Bonzini <pbonzini@redhat.com>
> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
> ---
>  hw/display/virtio-gpu-3d.c | 4 ----
>  hw/display/meson.build     | 4 +++-
>  2 files changed, 3 insertions(+), 5 deletions(-)
> 
> diff --git a/hw/display/virtio-gpu-3d.c b/hw/display/virtio-gpu-3d.c
> index 1bd33d7aedc6..0b0c11474dd3 100644
> --- a/hw/display/virtio-gpu-3d.c
> +++ b/hw/display/virtio-gpu-3d.c
> @@ -17,8 +17,6 @@
>  #include "hw/virtio/virtio.h"
>  #include "hw/virtio/virtio-gpu.h"
>  
> -#ifdef CONFIG_VIRGL
> -
>  #include <virglrenderer.h>
>  
>  static struct virgl_renderer_callbacks virtio_gpu_3d_cbs;
> @@ -633,5 +631,3 @@ int virtio_gpu_virgl_get_num_capsets(VirtIOGPU *g)
>  
>      return capset2_max_ver ? 2 : 1;
>  }
> -
> -#endif /* CONFIG_VIRGL */
> diff --git a/hw/display/meson.build b/hw/display/meson.build
> index 0d5ddecd6503..5906b96b830e 100644
> --- a/hw/display/meson.build
> +++ b/hw/display/meson.build
> @@ -57,7 +57,9 @@ softmmu_ss.add(when: [pixman, 'CONFIG_ATI_VGA'], if_true: 
> files('ati.c', 'ati_2d
>  if config_all_devices.has_key('CONFIG_VIRTIO_GPU')
>    virtio_gpu_ss = ss.source_set()
>    virtio_gpu_ss.add(when: 'CONFIG_VIRTIO_GPU',
> -                    if_true: [files('virtio-gpu-base.c', 'virtio-gpu.c', 
> 'virtio-gpu-3d.c'), pixman, virgl])
> +                    if_true: [files('virtio-gpu-base.c', 'virtio-gpu.c'), 
> pixman, virgl])
> +  virtio_gpu_ss.add(when: ['CONFIG_VIRTIO_GPU', 'CONFIG_VIRGL'],
> +                    if_true: [files('virtio-gpu-3d.c'), pixman, virgl])
>    virtio_gpu_ss.add(when: 'CONFIG_VHOST_USER_GPU', if_true: 
> files('vhost-user-gpu.c'))
>    hw_display_modules += {'virtio-gpu': virtio_gpu_ss}
>  endif

Mark suggested to test this patch to see if this solve the issue
introduced by commit da0dfe251d7 ("build: fix macOS --enable-modules
build") but it does not:

missing object type 'virtio-gpu-device'
Broken pipe
../tests/qtest/libqtest.c:176: kill_qemu() detected QEMU death from
signal 6 (Abort trap: 6)
ERROR qtest-aarch64/device-introspect-test - too few tests run (expected
6, got 5)
gmake: *** [Makefile.mtest:905: run-test-111] Error 1