From: "H. Peter Anvin" <hpa@zytor.com>
To: Mike Frysinger <vapier@gentoo.org>
Cc: Arnd Bergmann <arnd@arndb.de>,
Markus Trippelsdorf <markus@trippelsdorf.de>,
Michal Marek <mmarek@suse.cz>, Joe Perches <joe@perches.com>,
Nick Bowler <nbowler@elliptictech.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Sam Ravnborg <sam@ravnborg.org>,
Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Subject: Re: {PATCH] fix __packed in exported kernel headers
Date: Thu, 30 Jun 2011 13:02:21 -0700 [thread overview]
Message-ID: <4E0CD64D.406@zytor.com> (raw)
In-Reply-To: <BANLkTi=dGPz4MpSKUNWaA_W1t4C_+zV=0w@mail.gmail.com>
On 06/30/2011 12:13 PM, Mike Frysinger wrote:
>>
>> Not unless the kernel uses its own namespace for these defines. The
>> thing is, most libraries have their own macro library for this, and
>> collisions are both likely and bad.
>
> while that's true for exporting compiler.h, namespacing is irrelevant
> to my requirement -- the headers should have sane/usable defaults.
>
I have no idea what "your requirements" are, but as someone who has
actually implemented a C library on top of the Linux headers I can tell
you it's a very real and relevant issue, and that it is historically one
of the biggest problems.
-hpa
next prev parent reply other threads:[~2011-06-30 20:04 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-22 6:34 __packed vs. __attribute__((packed)) in kernel headers Markus Trippelsdorf
2011-06-23 13:42 ` Nick Bowler
2011-06-23 15:02 ` Markus Trippelsdorf
2011-06-23 16:57 ` Joe Perches
2011-06-24 13:07 ` Michal Marek
2011-06-24 13:51 ` {PATCH] fix __packed in exported " Markus Trippelsdorf
2011-06-24 15:17 ` Michal Marek
2011-06-24 16:33 ` Arnd Bergmann
2011-06-24 17:00 ` Mike Frysinger
2011-06-30 18:26 ` H. Peter Anvin
2011-06-30 18:48 ` Mike Frysinger
2011-06-30 18:52 ` H. Peter Anvin
2011-06-30 18:58 ` Mike Frysinger
2011-06-30 19:01 ` H. Peter Anvin
2011-06-30 19:13 ` Mike Frysinger
2011-06-30 20:02 ` H. Peter Anvin [this message]
2011-06-30 21:56 ` Mike Frysinger
2011-06-24 17:01 ` Markus Trippelsdorf
2011-06-23 17:04 ` __packed vs. __attribute__((packed)) in " richard -rw- weinberger
2011-06-23 17:46 ` Markus Trippelsdorf
2011-06-23 17:54 ` Mike Frysinger
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