From: Bernardo Innocenti <bernie@develer.com>
To: Aaron Lehmann <aaronl@vitelus.com>
Cc: gcc@gcc.gnu.org, linux-kernel@vger.kernel.org
Subject: Re: Big kernel size increase with gcc 3.4
Date: Fri, 08 Aug 2003 16:00:43 +0200 [thread overview]
Message-ID: <3F33AD0B.8020501@develer.com> (raw)
In-Reply-To: <20030808024909.GT2712@vitelus.com>
Aaron Lehmann wrote:
> On Fri, Aug 08, 2003 at 04:39:02AM +0200, Bernardo Innocenti wrote:
>
>>- same optimization flags: -m5307 -O2 -fno-strict-aliasing
>> -fno-common -fno-builtin -fomit-frame-pointer
>
> You should try -Os if you want to optimize for size.
I did some time ago, and it seems to reduce the code size greatly,
but then I noticed some problems with the memory allocator and
switched back to -O2 for fear that changing the inlining policy
could lead to instability.
I still see those memory allocator problems, so I think I could
safely switch back to -Os now... actually I would recommend it
for all embedded targets.
--
// Bernardo Innocenti - Develer S.r.l., R&D dept.
\X/ http://www.develer.com/
Please don't send Word attachments - http://www.gnu.org/philosophy/no-word-attachments.html
next prev parent reply other threads:[~2003-08-08 14:00 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-08 2:39 Big kernel size increase with gcc 3.4 Bernardo Innocenti
2003-08-08 2:49 ` Aaron Lehmann
2003-08-08 14:00 ` Bernardo Innocenti [this message]
[not found] ` <20030808053327.GZ150921@niksula.cs.hut.fi>
2003-08-08 15:10 ` Bernardo Innocenti
2003-08-08 19:24 ` tm_gccmail
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