From: Andi Kleen <andi@firstfloor.org>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Ingo Molnar <mingo@elte.hu>, Tony Luck <tony.luck@intel.com>,
linux-kernel@vger.kernel.org,
Thomas Gleixner <tglx@linutronix.de>,
Andrew Morton <akpm@linux-foundation.org>,
Stephane Eranian <eranian@googlemail.com>,
Eric Dumazet <dada1@cosmosbay.com>,
Robert Richter <robert.richter@amd.com>,
Arjan van de Veen <arjan@infradead.org>,
Peter Anvin <hpa@zytor.com>, Paul Mackerras <paulus@samba.org>,
"David S. Miller" <davem@davemloft.net>
Subject: Re: [patch] Performance Counters for Linux, v3
Date: Fri, 12 Dec 2008 14:42:08 +0100 [thread overview]
Message-ID: <8763lpcxxr.fsf@basil.nowhere.org> (raw)
In-Reply-To: <1229070570.12883.14.camel@twins> (Peter Zijlstra's message of "Fri, 12 Dec 2008 09:29:30 +0100")
Peter Zijlstra <a.p.zijlstra@chello.nl> writes:
> On that, I still don't think its a good idea to use bitfields in an ABI.
> The C std is just not strict enough on them,
If you constrain yourself to a single architecture in practice C
bitfield standards are quite good e.g. on Linux/x86 it is "everyone
implements what gcc does" (and on linux/ppc "what ppc gcc does").
And the syscall ABI is certainly restricted to one architecture.
-Andi
--
ak@linux.intel.com
next prev parent reply other threads:[~2008-12-12 13:41 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-11 15:52 [patch] Performance Counters for Linux, v3 Ingo Molnar
2008-12-11 18:02 ` Vince Weaver
2008-12-12 8:25 ` Peter Zijlstra
2008-12-12 8:35 ` stephane eranian
2008-12-12 8:51 ` Peter Zijlstra
2008-12-12 9:00 ` Peter Zijlstra
2008-12-12 9:07 ` Ingo Molnar
2008-12-12 8:59 ` stephane eranian
2008-12-12 9:23 ` Peter Zijlstra
2008-12-12 10:21 ` Robert Richter
2008-12-12 10:59 ` Christoph Hellwig
2008-12-12 11:35 ` Robert Richter
2008-12-12 16:45 ` Chris Friesen
2008-12-12 17:42 ` stephane eranian
2008-12-12 18:01 ` stephane eranian
2008-12-12 19:45 ` Chris Friesen
2008-12-15 14:50 ` stephane eranian
2008-12-15 22:32 ` Chris Friesen
2008-12-17 7:45 ` stephane eranian
2008-12-14 23:13 ` Ingo Molnar
2008-12-15 0:37 ` Paul Mackerras
2008-12-15 12:58 ` stephane eranian
2008-12-15 14:42 ` stephane eranian
2008-12-15 20:58 ` stephane eranian
2008-12-15 22:53 ` Paul Mackerras
2008-12-13 11:17 ` Peter Zijlstra
2008-12-13 13:48 ` Henrique de Moraes Holschuh
2008-12-13 17:44 ` stephane eranian
2008-12-14 1:02 ` Paul Mackerras
2008-12-14 22:37 ` Ingo Molnar
2008-12-15 0:50 ` Paul Mackerras
2008-12-15 13:02 ` stephane eranian
2008-12-12 17:03 ` Samuel Thibault
2008-12-12 17:11 ` Peter Zijlstra
2008-12-12 18:18 ` Vince Weaver
2008-12-11 18:35 ` Andrew Morton
2008-12-12 6:22 ` Ingo Molnar
2008-12-11 19:11 ` Tony Luck
2008-12-11 19:34 ` Ingo Molnar
2008-12-12 8:29 ` Peter Zijlstra
2008-12-12 8:54 ` Ingo Molnar
2008-12-12 13:42 ` Andi Kleen [this message]
2008-12-14 14:51 ` Performance counter API review was " Andi Kleen
2009-02-02 20:03 ` Corey Ashford
2009-02-02 20:33 ` Peter Zijlstra
2009-02-03 16:53 ` Maynard Johnson
2009-02-04 2:18 ` Paul Mackerras
2009-02-04 2:32 ` Nathan Lynch
2009-02-04 8:45 ` Peter Zijlstra
2009-02-04 10:47 ` Paul Mackerras
2009-02-04 10:51 ` Peter Zijlstra
-- strict thread matches above, loose matches on Subject: below --
2008-12-11 22:05 William Cohen
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