From: Andrew Haley <aph@redhat.com>
To: "H.J. Lu" <hjl.tools@gmail.com>
Cc: Andi Kleen <andi@firstfloor.org>, Jan Hubicka <hubicka@ucw.cz>,
Mark Mitchell <mark@codesourcery.com>,
gcc-patches@gcc.gnu.org
Subject: Re: PATCH: Turn on -fomit-frame-pointer by default for 32bit Linux/x86
Date: Wed, 04 Aug 2010 17:47:00 -0000 [thread overview]
Message-ID: <4C59A7A7.3070300@redhat.com> (raw)
In-Reply-To: <AANLkTi=HiHsDB0HFf1JEDVBVQznn6f4w8Y6tpAsZKWi1@mail.gmail.com>
On 08/04/2010 06:41 PM, H.J. Lu wrote:
> On Wed, Aug 4, 2010 at 10:35 AM, Andi Kleen <andi@firstfloor.org> wrote:
>> "H.J. Lu" <hjl.tools@gmail.com> writes:
>>>
>>> Can we find if oprofile works with -fomit-frame-pointer on 32bit Linux/x86.
>>
>> It doesn't for user space. The problem is that you would need
>> an in kernel dwarf2 unwinder that reads user space tables.
>>
>> x86-64 suffers from this already.
>
> But it is considered acceptable
By whom?
> so that we still want -fomit-frame-pointer for Linux/x86-64.
Ah, so your argument *is* "x86-64 profiling is degraded, so we might
as well degrade x86 as well."
Andrew.
next prev parent reply other threads:[~2010-08-04 17:47 UTC|newest]
Thread overview: 78+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-26 16:41 H.J. Lu
2010-08-02 17:55 ` H.J. Lu
2010-08-03 9:18 ` Uros Bizjak
2010-08-03 9:38 ` Andrew Haley
2010-08-03 14:03 ` H.J. Lu
2010-08-03 14:18 ` Daniel Jacobowitz
2010-08-03 14:28 ` H.J. Lu
2010-08-03 15:13 ` Daniel Jacobowitz
2010-08-03 15:35 ` H.J. Lu
2010-08-03 14:05 ` H.J. Lu
2010-08-03 14:11 ` Mark Mitchell
2010-08-03 17:12 ` Mark Mitchell
2010-08-03 17:24 ` Andrew Haley
2010-08-03 17:29 ` H.J. Lu
2010-08-03 17:57 ` Mark Mitchell
2010-08-04 13:21 ` Andrew Haley
2010-08-04 14:29 ` Mark Mitchell
2010-08-04 14:44 ` Andrew Haley
2010-08-04 14:48 ` Bernd Schmidt
2010-08-04 15:00 ` Jan Hubicka
2010-08-04 15:54 ` Andrew Haley
2010-08-04 16:08 ` H.J. Lu
2010-08-04 16:23 ` Andrew Haley
2010-08-04 17:05 ` Andrew Haley
2010-08-04 17:06 ` Andrew Haley
2010-08-04 17:08 ` H.J. Lu
2010-08-09 12:07 ` Mark Wielaard
2010-08-04 17:07 ` H.J. Lu
2010-08-04 17:09 ` Andrew Haley
2010-08-04 17:12 ` H.J. Lu
2010-08-04 17:15 ` Andrew Haley
2010-08-04 17:20 ` H.J. Lu
2010-08-04 17:08 ` Chris Lattner
2010-08-04 17:36 ` Andi Kleen
2010-08-04 17:41 ` H.J. Lu
2010-08-04 17:47 ` Andrew Haley [this message]
2010-08-04 17:53 ` H.J. Lu
2010-08-04 18:05 ` Andi Kleen
2010-08-04 18:12 ` Mark Mitchell
2010-08-04 18:18 ` H.J. Lu
2010-08-17 1:47 ` Maciej W. Rozycki
2010-08-03 17:58 ` David Daney
2010-08-03 17:25 ` H.J. Lu
2010-08-03 17:48 ` Mark Mitchell
2010-08-03 18:18 ` Richard Henderson
2010-08-04 18:52 Paul Pluzhnikov
2010-08-04 19:13 ` H.J. Lu
2010-08-04 19:24 ` Paul Pluzhnikov
2010-08-04 19:25 ` Xinliang David Li
2010-08-04 20:39 ` Andi Kleen
2010-08-04 20:57 ` David Daney
2010-08-04 21:09 ` Paul Pluzhnikov
2010-08-04 21:16 ` Andi Kleen
2010-08-04 22:07 ` Paul Pluzhnikov
2010-08-04 22:16 ` Andi Kleen
2010-08-04 22:45 ` David Daney
2010-08-05 7:00 ` Andi Kleen
2010-08-04 23:11 ` Richard Henderson
2010-08-05 7:23 ` Andi Kleen
2010-08-04 21:13 ` Andi Kleen
2010-08-12 16:22 H.J. Lu
2010-08-12 16:28 ` Richard Henderson
2010-08-12 16:35 ` Uros Bizjak
2010-08-12 16:52 ` H.J. Lu
2010-08-12 17:03 ` Uros Bizjak
2010-08-12 17:07 ` H.J. Lu
2010-08-12 17:12 ` H.J. Lu
2010-08-12 17:13 ` Uros Bizjak
2010-08-12 17:20 ` H.J. Lu
2010-08-12 17:26 ` Jack Howarth
2010-08-12 17:39 ` Uros Bizjak
2010-08-12 17:39 ` Jack Howarth
2010-08-12 17:46 ` Richard Henderson
2010-08-12 17:58 ` IainS
2010-08-12 18:22 ` Richard Henderson
2010-08-12 17:50 ` Uros Bizjak
2010-08-12 23:02 ` Mike Stump
2013-01-30 22:24 ` Ryan Hill
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