From: Lukas Straub <lukasstraub2@web.de>
To: Markus Armbruster <armbru@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>, qemu-devel@nongnu.org
Subject: Re: [PATCH] yank: Avoid linking into executables that don't want it
Date: Wed, 17 Mar 2021 21:50:02 +0100 [thread overview]
Message-ID: <20210317215002.283b9179@gecko.fritz.box> (raw)
In-Reply-To: <20210316135907.3646901-1-armbru@redhat.com>
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On Tue, 16 Mar 2021 14:59:07 +0100
Markus Armbruster <armbru@redhat.com> wrote:
> util/yank.c and stubs/yank.c are both in libqemuutil.a, even though
> their external symbols conflict. The linker happens to pick the
> former. This links a bunch of unneeded code into the executables that
> actually want the latter: qemu-io, qemu-img, qemu-nbd, and several
> tests. Amazingly, none of them fails to link.
>
> To fix this, the non-stub yank.c from sourceset util_ss to sourceset
> qmp_ss. This requires moving it from util/ to monitor/.
>
> Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
> Signed-off-by: Markus Armbruster <armbru@redhat.com>
> ---
> {util => monitor}/yank.c | 0
> MAINTAINERS | 2 +-
> monitor/meson.build | 1 +
> util/meson.build | 1 -
> 4 files changed, 2 insertions(+), 2 deletions(-)
> rename {util => monitor}/yank.c (100%)
>
> diff --git a/util/yank.c b/monitor/yank.c
> similarity index 100%
> rename from util/yank.c
> rename to monitor/yank.c
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 5ca3c9f851..d3174c0bb0 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -2799,7 +2799,7 @@ F: tests/unit/test-uuid.c
> Yank feature
> M: Lukas Straub <lukasstraub2@web.de>
> S: Odd fixes
> -F: util/yank.c
> +F: monitor/yank.c
> F: stubs/yank.c
> F: include/qemu/yank.h
> F: qapi/yank.json
> diff --git a/monitor/meson.build b/monitor/meson.build
> index 6d00985ace..1ce5909c88 100644
> --- a/monitor/meson.build
> +++ b/monitor/meson.build
> @@ -1,4 +1,5 @@
> qmp_ss.add(files('monitor.c', 'qmp.c', 'qmp-cmds-control.c'))
> +qmp_ss.add(files('yank.c'))
>
> softmmu_ss.add(files(
> 'hmp-cmds.c',
> diff --git a/util/meson.build b/util/meson.build
> index 984fba965f..fa0298adab 100644
> --- a/util/meson.build
> +++ b/util/meson.build
> @@ -51,7 +51,6 @@ endif
> if have_system
> util_ss.add(files('crc-ccitt.c'))
> util_ss.add(when: 'CONFIG_GIO', if_true: [files('dbus.c'), gio])
> - util_ss.add(files('yank.c'))
> util_ss.add(when: 'CONFIG_LINUX', if_true: files('userfaultfd.c'))
> endif
>
Looks good to me, applied and fixed commit message.
Regards,
Lukas Straub
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next prev parent reply other threads:[~2021-03-17 20:52 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-16 13:59 [PATCH] yank: Avoid linking into executables that don't want it Markus Armbruster
2021-03-16 14:06 ` Eric Blake
2021-03-16 15:34 ` Markus Armbruster
2021-03-16 14:07 ` Eric Blake
2021-03-16 15:36 ` Markus Armbruster
2021-03-17 20:50 ` Lukas Straub [this message]
2021-03-23 4:54 ` Thomas Huth
2021-03-23 9:43 ` Markus Armbruster
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