From: Nathaniel McCallum <nathaniel@natemccallum.com>
To: Greg KH <greg@kroah.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Exposing device ids and driver names
Date: Thu, 01 Oct 2009 17:36:57 -0400 [thread overview]
Message-ID: <4AC520F9.8000201@natemccallum.com> (raw)
In-Reply-To: <20091001184021.GA26875@kroah.com>
On 10/01/2009 02:40 PM, Greg KH wrote:
> On Thu, Oct 01, 2009 at 02:35:40PM -0400, Nathaniel McCallum wrote:
>> But I still would prefer a non-invasive solution.
>
> Agreed, sorry I don't have an idea on how to do it.
How about this?
-#define MODULE_GENERIC_TABLE(gtype,name)
+#define MODULE_GENERIC_TABLE(gtype,name) \
+static const struct gtype##_id gtype##_id_table \
+ __attribute__ ((unused, alias(__stringify(name))))
We add an alias to the existing symbol. This just creates a new entry
in the symbol table. These entries are all stripped anyway and inserted
into the System.map.
Impact:
* No change to the resulting vmlinuz binary
* Increases size of System.map (~2k with the Fedora config)
Nathaniel
next prev parent reply other threads:[~2009-10-01 21:37 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-01 16:40 Exposing device ids and driver names Nathaniel McCallum
2009-10-01 16:42 ` Greg KH
2009-10-01 17:01 ` Nathaniel McCallum
2009-10-01 18:05 ` Greg KH
2009-10-01 18:35 ` Nathaniel McCallum
2009-10-01 18:40 ` Greg KH
2009-10-01 18:56 ` Nathaniel McCallum
2009-10-01 19:07 ` Greg KH
2009-10-01 19:17 ` Nathaniel McCallum
2009-10-01 21:36 ` Nathaniel McCallum [this message]
2009-10-01 17:47 ` Stefan Richter
2009-10-01 18:02 ` Nathaniel McCallum
2009-10-01 18:23 ` Stefan Richter
2009-10-01 18:28 ` Nathaniel McCallum
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