Re: [PATCH 2/2] util/meson: Build iov/hexdump/buffer_is_zero with virtiofsd

[Richard Henderson]

On 4/28/21 7:48 AM, Philippe Mathieu-Daudé wrote:
> diff --git a/util/meson.build b/util/meson.build
> index 510765cde46..c2eda2d1374 100644
> --- a/util/meson.build
> +++ b/util/meson.build
> @@ -59,12 +59,10 @@
>     util_ss.add(files('aiocb.c', 'async.c', 'aio-wait.c'))
>     util_ss.add(files('base64.c'))
>     util_ss.add(files('buffer.c'))
> -  util_ss.add(files('bufferiszero.c'))
>     
> util_ss.add(files('coroutine-@0@.c'.format(config_host['CONFIG_COROUTINE_BACKEND'])))
>     util_ss.add(files('hbitmap.c'))
> -  util_ss.add(files('hexdump.c'))
>     util_ss.add(files('iova-tree.c'))
> -  util_ss.add(files('iov.c', 'qemu-sockets.c', 'uri.c'))
> +  util_ss.add(files('qemu-sockets.c', 'uri.c'))
>     util_ss.add(files('lockcnt.c'))
>     util_ss.add(files('main-loop.c'))
>     util_ss.add(files('nvdimm-utils.c'))
> @@ -83,3 +81,9 @@
>                                           if_false: files('filemonitor-stub.c'))
>     util_ss.add(when: 'CONFIG_LINUX', if_true: files('vfio-helpers.c'))
>   endif
> +
> +if have_block or config_host.has_key('CONFIG_VHOST_USER_FS')
> +  util_ss.add(files('hexdump.c'))
> +  util_ss.add(files('bufferiszero.c'))
> +  util_ss.add(files('iov.c'))
> +endif

Isn't util a static library, built once?  Why are we avoiding building these 
unconditionally?  Surely symbols will be included in any linked binaries only 
as needed.


r~