From: Jan Engelhardt <jengelh@inai.de>
To: Greg KH <greg@kroah.com>
Cc: moderated for non-subscribers <alsa-devel@alsa-project.org>,
"Michael S. Tsirkin" <mst@redhat.com>,
David Airlie <airlied@linux.ie>, Jason Wang <jasowang@redhat.com>,
Mat Martineau <mathew.j.martineau@linux.intel.com>,
dri-devel@lists.freedesktop.org,
virtualization@lists.linux-foundation.org,
David Howells <dhowells@redhat.com>,
Masahiro Yamada <yamada.masahiro@socionext.com>,
keyrings@vger.kernel.org,
Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>,
linux-nilfs@vger.kernel.org, linux-nvdimm@lists.01.org,
codalist@coda.cs.cmu.edu, coda@cs.cmu.edu,
coreteam@netfilter.org,
Kent Overstreet <kent.overstreet@gmail.com>,
linux-kbuild@vger.kernel.org, linux-arm-msm@vger.kernel.org,
Coly Li <colyli@suse.de>,
linux-bcache@vger.kernel.org, Jaroslav Kysela <perex@perex.cz>,
Jan Harkes <jaharkes@cs.cmu.edu>,
Michal Marek <michal.lkml@markovi.net>,
linux-api@vger.kernel.org, Takashi Iwai <tiwai@suse.com>,
linux-kernel@vger.kernel.org, Rob Clark <robdclark@gmail.com>,
netfilter-devel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
freedreno@lists.freedesktop.org
Subject: Re: [RFC] UAPI: Check headers by compiling all together as C++
Date: Wed, 5 Sep 2018 21:22:11 +0200 (CEST) [thread overview]
Message-ID: <nycvar.YFH.7.76.1809052120510.24932@n3.vanv.qr> (raw)
In-Reply-To: <20180905165552.GB25206@kroah.com>
On Wednesday 2018-09-05 18:55, Greg KH wrote:
>On Wed, Sep 05, 2018 at 04:54:27PM +0100, David Howells wrote:
>>
>> Here's a set of patches that inserts a step into the build process to make
>> sure that the UAPI headers can all be built together with C++ (if the
>> compiler being used supports C++). All but the final patch perform fixups,
>> including:
>
>Wait, why do we care? What has recently changed to start to directly
>import kernel uapi files into C++ code?
With C++11, C++ has become a much nicer language to use (for userspace, anyway).
>And if userspace wants to do this, can't they do the C namespace trick
>themselves when they do the import?
The only trick is to use an extra C source file and extensively wrap things.
_______________________________________________
Linux-nvdimm mailing list
Linux-nvdimm@lists.01.org
https://lists.01.org/mailman/listinfo/linux-nvdimm
WARNING: multiple messages have this Message-ID (diff)
From: Jan Engelhardt <jengelh-9+2X+4sQBs8@public.gmane.org>
To: Greg KH <greg-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
Cc: moderated for non-subscribers
<alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw@public.gmane.org>,
"Michael S. Tsirkin"
<mst-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
David Airlie <airlied-cv59FeDIM0c@public.gmane.org>,
Jason Wang <jasowang-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
Mat Martineau
<mathew.j.martineau-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>,
dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org,
virtualization-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
David Howells <dhowells-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
Masahiro Yamada
<yamada.masahiro-uWyLwvC0a2jby3iVrkZq2A@public.gmane.org>,
keyrings-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Ryusuke Konishi
<konishi.ryusuke-Zyj7fXuS5i5L9jVzuh4AOg@public.gmane.org>,
linux-nilfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-nvdimm-hn68Rpc1hR1g9hUCZPvPmw@public.gmane.org,
codalist-/uMB558Y47wP4a1z8dhFYw@public.gmane.org,
coda-ETDLCGt7PQU3uPMLIKxrzw@public.gmane.org,
coreteam-Cap9r6Oaw4JrovVCs/uTlw@public.gmane.org,
Kent Overstreet
<kent.overstreet-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
linux-kbuild-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-arm-msm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Coly Li <colyli-l3A5Bk7waGM@public.gmane.org>,
linux-bcache-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Jaroslav Kysela <perex-/Fr2/VpizcU@public.gmane.org>,
Jan Harkes <jaharkes-ETDLCGt7PQU3uPMLIKxrzw@public.gmane.org>,
Michal Marek
<michal.lkml-yyZNWGI4GtDR7s880joybQ@public.gmane.org>,
linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Takash
Subject: Re: [RFC] UAPI: Check headers by compiling all together as C++
Date: Wed, 5 Sep 2018 21:22:11 +0200 (CEST) [thread overview]
Message-ID: <nycvar.YFH.7.76.1809052120510.24932@n3.vanv.qr> (raw)
In-Reply-To: <20180905165552.GB25206-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
On Wednesday 2018-09-05 18:55, Greg KH wrote:
>On Wed, Sep 05, 2018 at 04:54:27PM +0100, David Howells wrote:
>>
>> Here's a set of patches that inserts a step into the build process to make
>> sure that the UAPI headers can all be built together with C++ (if the
>> compiler being used supports C++). All but the final patch perform fixups,
>> including:
>
>Wait, why do we care? What has recently changed to start to directly
>import kernel uapi files into C++ code?
With C++11, C++ has become a much nicer language to use (for userspace, anyway).
>And if userspace wants to do this, can't they do the C namespace trick
>themselves when they do the import?
The only trick is to use an extra C source file and extensively wrap things.
WARNING: multiple messages have this Message-ID (diff)
From: Jan Engelhardt <jengelh@inai.de>
To: Greg KH <greg-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
Cc: moderated for non-subscribers
<alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw@public.gmane.org>,
"Michael S. Tsirkin"
<mst-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
David Airlie <airlied-cv59FeDIM0c@public.gmane.org>,
Jason Wang <jasowang-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
Mat Martineau
<mathew.j.martineau-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>,
dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org,
virtualization-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
David Howells <dhowells-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
Masahiro Yamada
<yamada.masahiro-uWyLwvC0a2jby3iVrkZq2A@public.gmane.org>,
keyrings-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Ryusuke Konishi
<konishi.ryusuke-Zyj7fXuS5i5L9jVzuh4AOg@public.gmane.org>,
linux-nilfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-nvdimm-hn68Rpc1hR1g9hUCZPvPmw@public.gmane.org,
codalist-/uMB558Y47wP4a1z8dhFYw@public.gmane.org,
coda-ETDLCGt7PQU3uPMLIKxrzw@public.gmane.org,
coreteam-Cap9r6Oaw4JrovVCs/uTlw@public.gmane.org,
Kent Overstreet
<kent.overstreet-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
linux-kbuild-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-arm-msm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Coly Li <colyli-l3A5Bk7waGM@public.gmane.org>,
linux-bcache-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Jaroslav Kysela <perex-/Fr2/VpizcU@public.gmane.org>,
Jan Harkes <jaharkes-ETDLCGt7PQU3uPMLIKxrzw@public.gmane.org>,
Michal Marek
<michal.lkml-yyZNWGI4GtDR7s880joybQ@public.gmane.org>,
linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Takash
Subject: Re: [RFC] UAPI: Check headers by compiling all together as C++
Date: Wed, 05 Sep 2018 19:22:11 +0000 [thread overview]
Message-ID: <nycvar.YFH.7.76.1809052120510.24932@n3.vanv.qr> (raw)
In-Reply-To: <20180905165552.GB25206-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
On Wednesday 2018-09-05 18:55, Greg KH wrote:
>On Wed, Sep 05, 2018 at 04:54:27PM +0100, David Howells wrote:
>>
>> Here's a set of patches that inserts a step into the build process to make
>> sure that the UAPI headers can all be built together with C++ (if the
>> compiler being used supports C++). All but the final patch perform fixups,
>> including:
>
>Wait, why do we care? What has recently changed to start to directly
>import kernel uapi files into C++ code?
With C++11, C++ has become a much nicer language to use (for userspace, anyway).
>And if userspace wants to do this, can't they do the C namespace trick
>themselves when they do the import?
The only trick is to use an extra C source file and extensively wrap things.
WARNING: multiple messages have this Message-ID (diff)
From: Jan Engelhardt <jengelh@inai.de>
To: Greg KH <greg@kroah.com>
Cc: David Howells <dhowells@redhat.com>,
linux-api@vger.kernel.org, linux-kbuild@vger.kernel.org,
Michal Marek <michal.lkml@markovi.net>,
dri-devel@lists.freedesktop.org,
virtualization@lists.linux-foundation.org,
keyrings@vger.kernel.org, David Airlie <airlied@linux.ie>,
linux-nilfs@vger.kernel.org, linux-nvdimm@lists.01.org,
"Michael S. Tsirkin" <mst@redhat.com>,
codalist@coda.cs.cmu.edu, coda@cs.cmu.edu,
coreteam@netfilter.org, Rob Clark <robdclark@gmail.com>,
linux-arm-msm@vger.kernel.org,
Kent Overstreet <kent.overstreet@gmail.com>,
Dan Williams <dan.j.williams@intel.com>,
Takashi Iwai <tiwai@suse.com>,
linux-bcache@vger.kernel.org, Coly Li <colyli@suse.de>,
Jaroslav Kysela <perex@perex.cz>,
Jan Harkes <jaharkes@cs.cmu.edu>,
Masahiro Yamada <yamada.masahiro@socionext.com>,
Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>,
Jason Wang <jasowang@redhat.com>,
Mat Martineau <mathew.j.martineau@linux.intel.com>,
netfilter-devel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
moderated for non-subscribers <alsa-devel@alsa-project.org>,
freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org
Subject: Re: [RFC] UAPI: Check headers by compiling all together as C++
Date: Wed, 5 Sep 2018 21:22:11 +0200 (CEST) [thread overview]
Message-ID: <nycvar.YFH.7.76.1809052120510.24932@n3.vanv.qr> (raw)
In-Reply-To: <20180905165552.GB25206@kroah.com>
On Wednesday 2018-09-05 18:55, Greg KH wrote:
>On Wed, Sep 05, 2018 at 04:54:27PM +0100, David Howells wrote:
>>
>> Here's a set of patches that inserts a step into the build process to make
>> sure that the UAPI headers can all be built together with C++ (if the
>> compiler being used supports C++). All but the final patch perform fixups,
>> including:
>
>Wait, why do we care? What has recently changed to start to directly
>import kernel uapi files into C++ code?
With C++11, C++ has become a much nicer language to use (for userspace, anyway).
>And if userspace wants to do this, can't they do the C namespace trick
>themselves when they do the import?
The only trick is to use an extra C source file and extensively wrap things.
next prev parent reply other threads:[~2018-09-05 19:22 UTC|newest]
Thread overview: 138+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-05 15:54 [RFC] UAPI: Check headers by compiling all together as C++ David Howells
2018-09-05 15:54 ` David Howells
2018-09-05 15:54 ` David Howells
2018-09-05 15:54 ` David Howells
2018-09-05 15:54 ` David Howells
2018-09-05 15:54 ` [PATCH 01/11] UAPI: drm: Fix use of C++ keywords as structural members David Howells
2018-09-05 15:54 ` David Howells
2018-09-05 15:54 ` [PATCH 02/11] UAPI: keys: " David Howells
2018-09-05 15:54 ` David Howells
2018-09-05 15:54 ` [PATCH 03/11] UAPI: virtio_net: " David Howells
2018-09-05 16:54 ` Greg KH
2018-09-05 16:54 ` Greg KH
2018-09-05 17:15 ` David Howells
2018-09-05 17:15 ` David Howells
2018-09-05 17:35 ` Michael S. Tsirkin
2018-09-05 17:35 ` Michael S. Tsirkin
2018-09-06 7:09 ` David Howells
2018-09-06 7:09 ` David Howells
2018-09-06 14:36 ` Michael S. Tsirkin
2018-09-06 14:36 ` Michael S. Tsirkin
2018-09-05 15:54 ` David Howells
2018-09-05 15:55 ` [PATCH 04/11] UAPI: bcache: Fix use of embedded flexible array David Howells
2018-10-02 14:52 ` Jan Engelhardt
2018-10-09 15:41 ` David Howells
2018-10-09 16:54 ` Jan Engelhardt
2018-09-05 15:55 ` [PATCH 05/11] UAPI: coda: Don't use internal kernel structs in UAPI David Howells
2018-09-05 16:54 ` Jan Harkes
2018-09-05 17:12 ` Yann Droneaud
2018-09-05 17:28 ` Jan Harkes
2018-09-05 17:28 ` Jan Harkes
2018-09-05 17:24 ` David Howells
2018-09-06 7:13 ` David Howells
2018-09-06 11:52 ` Yann Droneaud
2018-09-06 12:16 ` Jan Harkes
2018-09-06 12:16 ` Jan Harkes
2018-09-06 14:53 ` David Howells
2018-09-05 15:55 ` [PATCH 06/11] UAPI: netfilter: Fix symbol collision issues David Howells
2018-09-05 15:55 ` [PATCH 07/11] UAPI: nilfs2: Fix use of undefined byteswapping functions David Howells
2018-09-05 22:20 ` Al Viro
2018-09-05 15:55 ` [PATCH 08/11] UAPI: sound: Fix use of u32 and co. in UAPI headers David Howells
2018-09-05 15:55 ` David Howells
2018-09-06 5:59 ` Takashi Sakamoto
2018-09-06 5:59 ` Takashi Sakamoto
2018-09-06 8:17 ` David Howells
2018-09-05 15:55 ` [PATCH 09/11] UAPI: ndctl: Fix g++-unsupported initialisation in headers David Howells
2018-09-05 15:55 ` David Howells
2018-09-05 15:55 ` David Howells
2018-09-05 15:55 ` [PATCH 10/11] UAPI: ndctl: Remove use of PAGE_SIZE David Howells
2018-09-05 15:55 ` David Howells
2018-09-05 15:55 ` [PATCH 11/11] UAPI: Check headers build for C++ David Howells
2018-09-05 16:55 ` [RFC] UAPI: Check headers by compiling all together as C++ Greg KH
2018-09-05 16:55 ` Greg KH
2018-09-05 16:55 ` Greg KH
2018-09-05 16:55 ` Greg KH
2018-09-05 16:55 ` Greg KH
2018-09-05 16:55 ` Greg KH
2018-09-05 17:33 ` Yann Droneaud
2018-09-05 17:33 ` Yann Droneaud
2018-09-05 17:33 ` Yann Droneaud
2018-09-05 17:33 ` Yann Droneaud
2018-09-05 17:33 ` Yann Droneaud
2018-09-05 17:42 ` Michael S. Tsirkin
2018-09-05 17:42 ` Michael S. Tsirkin
2018-09-05 17:42 ` Michael S. Tsirkin
2018-09-05 17:42 ` Michael S. Tsirkin
2018-09-05 17:42 ` Michael S. Tsirkin
2018-09-05 17:42 ` Michael S. Tsirkin
2018-09-05 17:42 ` Michael S. Tsirkin
2018-09-06 7:12 ` Yann Droneaud
2018-09-06 7:12 ` Yann Droneaud
2018-09-06 7:12 ` Yann Droneaud
2018-09-06 7:12 ` Yann Droneaud
2018-09-06 7:12 ` Yann Droneaud
2018-09-05 19:22 ` Jan Engelhardt
2018-09-05 19:22 ` Jan Engelhardt [this message]
2018-09-05 19:22 ` Jan Engelhardt
2018-09-05 19:22 ` Jan Engelhardt
2018-09-05 19:22 ` Jan Engelhardt
2018-09-05 17:50 ` David Howells
2018-09-05 17:50 ` David Howells
2018-09-05 17:50 ` David Howells
-- strict thread matches above, loose matches on Subject: below --
2018-09-06 9:18 David Howells
2018-09-06 9:18 ` David Howells
2018-09-06 9:18 ` David Howells
2018-09-06 9:18 ` David Howells
2018-09-06 9:18 ` David Howells
[not found] ` <153622549721.14298.8116794954073122489.stgit-S6HVgzuS8uM4Awkfq6JHfwNdhmdF6hFW@public.gmane.org>
2018-09-06 9:18 ` [PATCH 01/11] UAPI: drm: Fix use of C++ keywords as structural members [ver #2] David Howells
2018-09-06 9:18 ` David Howells
2018-09-06 9:18 ` [PATCH 02/11] UAPI: keys: " David Howells
2018-09-06 9:18 ` David Howells
2018-09-06 9:18 ` [PATCH 03/11] UAPI: virtio_net: " David Howells
2018-09-06 15:02 ` Michael S. Tsirkin
2018-09-06 15:02 ` Michael S. Tsirkin
2018-09-06 9:18 ` David Howells
2018-09-06 9:18 ` [PATCH 04/11] UAPI: bcache: Fix use of embedded flexible array " David Howells
2018-09-06 9:18 ` [PATCH 05/11] UAPI: coda: Move kernel internals out of public view " David Howells
2018-09-06 9:18 ` David Howells
2018-09-06 9:19 ` [PATCH 06/11] coda: Move internal defs out of include/linux/ " David Howells
2018-09-06 9:19 ` [PATCH 07/11] UAPI: netfilter: Fix symbol collision issues " David Howells
2018-09-10 17:32 ` kbuild test robot
2018-09-10 17:32 ` kbuild test robot
2018-09-10 17:32 ` kbuild test robot
2018-09-28 13:07 ` [netfilter-core] " Pablo Neira Ayuso
2018-10-09 15:35 ` David Howells
2018-09-06 9:19 ` [PATCH 08/11] UAPI: nilfs2: Fix use of undefined byteswapping functions " David Howells
2018-09-06 9:19 ` [PATCH 09/11] UAPI: ndctl: Fix g++-unsupported initialisation in headers " David Howells
2018-09-06 9:19 ` David Howells
2018-09-06 9:19 ` David Howells
2018-09-25 20:22 ` Dan Williams
2018-09-25 20:22 ` Dan Williams
2018-09-25 20:22 ` Dan Williams
2018-09-06 9:19 ` [PATCH 10/11] UAPI: ndctl: Remove use of PAGE_SIZE " David Howells
2018-09-06 9:19 ` David Howells
2018-09-06 9:19 ` David Howells
2018-09-25 20:17 ` Dan Williams
2018-09-25 20:17 ` Dan Williams
2018-09-25 20:17 ` Dan Williams
2018-10-09 15:36 ` David Howells
2018-10-09 15:36 ` David Howells
2018-09-06 9:19 ` [PATCH 11/11] UAPI: Check headers build for C++ " David Howells
2018-09-10 16:26 ` kbuild test robot
2018-09-10 16:26 ` kbuild test robot
2018-09-10 16:26 ` kbuild test robot
2018-09-10 17:02 ` kbuild test robot
2018-09-10 17:02 ` kbuild test robot
2018-09-10 17:02 ` kbuild test robot
2018-09-14 9:10 ` Arnd Bergmann
2018-09-06 9:18 [RFC] UAPI: Check headers by compiling all together as C++ David Howells
2018-09-05 18:59 Alexey Dobriyan
2018-09-05 19:26 ` Greg KH
2018-09-05 19:31 ` Alexey Dobriyan
2018-09-05 22:22 ` Al Viro
2018-09-13 22:01 ` Alexey Dobriyan
2018-09-13 22:15 ` Al Viro
2018-09-13 23:27 ` David Howells
2018-09-13 23:42 ` Al Viro
2018-09-05 19:53 ` David Howells
2018-09-05 15:54 David Howells
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=nycvar.YFH.7.76.1809052120510.24932@n3.vanv.qr \
--to=jengelh@inai.de \
--cc=airlied@linux.ie \
--cc=alsa-devel@alsa-project.org \
--cc=coda@cs.cmu.edu \
--cc=codalist@coda.cs.cmu.edu \
--cc=colyli@suse.de \
--cc=coreteam@netfilter.org \
--cc=dhowells@redhat.com \
--cc=dri-devel@lists.freedesktop.org \
--cc=freedreno@lists.freedesktop.org \
--cc=greg@kroah.com \
--cc=jaharkes@cs.cmu.edu \
--cc=jasowang@redhat.com \
--cc=kent.overstreet@gmail.com \
--cc=keyrings@vger.kernel.org \
--cc=konishi.ryusuke@lab.ntt.co.jp \
--cc=linux-api@vger.kernel.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-bcache@vger.kernel.org \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kbuild@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-nilfs@vger.kernel.org \
--cc=linux-nvdimm@lists.01.org \
--cc=mathew.j.martineau@linux.intel.com \
--cc=michal.lkml@markovi.net \
--cc=mst@redhat.com \
--cc=netfilter-devel@vger.kernel.org \
--cc=perex@perex.cz \
--cc=robdclark@gmail.com \
--cc=tiwai@suse.com \
--cc=virtualization@lists.linux-foundation.org \
--cc=yamada.masahiro@socionext.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.