On Mon, Feb 7, 2022 at 6:44 PM Christian Schoenebeck
wrote:
> On Montag, 7. Februar 2022 23:40:23 CET Will Cohen wrote:
> > From: Keno Fischer
> >
> > To allow VirtFS on darwin, we need to check that pthread_fchdir_np is
> > available, which has only been available since macOS 10.12.
> >
> > Additionally, virtfs_proxy_helper is disabled on Darwin. This patch
> > series does not currently provide an implementation of the proxy-helper,
> > but this functionality could be implemented later on.
> >
> > Signed-off-by: Keno Fischer
> > [Michael Roitzsch: - Rebase for NixOS]
> > Signed-off-by: Michael Roitzsch
> > [Will Cohen: - Rebase to master]
> > Signed-off-by: Will Cohen
> > Reviewed-by: Paolo Bonzini
> > [Will Cohen: - Add check for pthread_fchdir_np to virtfs
> > - Add comments to patch commit
> > - Note that virtfs_proxy_helper does not work
> >on macOS
> > - Adjust meson virtfs error note to specify macOS]
> > Signed-off-by: Will Cohen
> > ---
> > fsdev/meson.build | 1 +
> > meson.build | 14 ++
> > 2 files changed, 11 insertions(+), 4 deletions(-)
> >
> > diff --git a/fsdev/meson.build b/fsdev/meson.build
> > index adf57cc43e..b632b66348 100644
> > --- a/fsdev/meson.build
> > +++ b/fsdev/meson.build
> > @@ -7,6 +7,7 @@ fsdev_ss.add(when: ['CONFIG_FSDEV_9P'], if_true: files(
> >'qemu-fsdev.c',
> > ), if_false: files('qemu-fsdev-dummy.c'))
> > softmmu_ss.add_all(when: 'CONFIG_LINUX', if_true: fsdev_ss)
> > +softmmu_ss.add_all(when: 'CONFIG_DARWIN', if_true: fsdev_ss)
> >
> > if have_virtfs_proxy_helper
> >executable('virtfs-proxy-helper',
> > diff --git a/meson.build b/meson.build
> > index 5f43355071..c1d13209ff 100644
> > --- a/meson.build
> > +++ b/meson.build
> > @@ -1421,17 +1421,23 @@ if not get_option('dbus_display').disabled()
> >endif
> > endif
> >
> > -have_virtfs = (targetos == 'linux' and
> > +if targetos == 'darwin' and cc.has_function('pthread_fchdir_np')
> > + have_virtfs = have_system
> > +else
> > + have_virtfs = (targetos == 'linux' and
> > have_system and
> > libattr.found() and
> > libcap_ng.found())
> > +endif
> >
> > -have_virtfs_proxy_helper = have_virtfs and have_tools
> > +have_virtfs_proxy_helper = targetos != 'darwin' and have_virtfs and
> > have_tools
> >
> > if get_option('virtfs').enabled()
> >if not have_virtfs
> > -if targetos != 'linux'
> > - error('virtio-9p (virtfs) requires Linux')
> > +if targetos != 'linux' and targetos != 'darwin'
> > + error('virtio-9p (virtfs) requires Linux or macOS')
> > +elif targetos == 'darwin' and not
> cc.has_function('pthread_fchdir_np')
> > + error('virtio-9p (virtfs) on Darwin requires the presence of
> pthread_fchdir_np')
>
> Maybe call this "macOS" in this error message as well?
>
> error('virtio-9p (virtfs) requires the presence of pthread_fchdir_np
> on macOS')
Agreed — shouldn’t have omitted.
>
>
> > elif not libcap_ng.found() or not libattr.found()
> >error('virtio-9p (virtfs) requires libcap-ng-devel and
> > libattr-devel') elif not have_system
>
>
>
