From: "Bernard Fouché" <bernard.fouche@kuantic.com>
To: ecos-devel@ecos.sourceware.org
Subject: eCos GNU tools 4.6.3-20120315 and link time optimization
Date: Thu, 31 May 2012 08:42:00 -0000 [thread overview]
Message-ID: <4FC72DD3.8040202@kuantic.com> (raw)
In-Reply-To: <4F7C4A0C.40200@siva.com.mk>
Hi,
I did some testing of 4.6.3 on my Cortex-M3 LPC1765 based app, using the
eCos CVS repo code.
I use -Os and my goal is to reduce the code size:
4.3.2: 153172 bytes
4.6.3: 144556 bytes
4.6.3, app only compiled with -flto: 136404 bytes
The improvement is significant and the app still works ;-)
However I wasn't able to link with eCos compiled with -flto and
-Wl,--allow-multiple-definition, the linker fails with:
target.a: could not read symbols: Bad value
I could link adding '-fno-use-linker-plugin' but then I'm back to 144028
bytes!
Did anyone succeeded in compiling/linking an application and eCos with
-flto??
Thanks,
Bernard
next prev parent reply other threads:[~2012-05-31 8:42 UTC|newest]
Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-13 17:01 Gnutools: consideration for upgrade to GCC 4.6 Ilija Kocho
2012-01-13 18:54 ` Bernard Fouché
2012-01-13 19:39 ` Ilija Kocho
2012-01-13 19:09 ` Frank Pagliughi
2012-01-13 19:45 ` Ilija Kocho
2012-01-14 10:22 ` John Dallaway
2012-01-14 16:02 ` Sergei Gavrikov
2012-01-15 17:36 ` Grant Edwards
2012-01-15 18:42 ` Sergei Gavrikov
2012-01-15 21:39 ` Stanislav Meduna
2012-01-23 1:01 ` Jonathan Larmour
2012-01-15 22:21 ` Ilija Kocho
2012-01-23 1:07 ` Jonathan Larmour
2012-01-15 22:21 ` Ilija Kocho
2012-01-16 15:20 ` Grant Edwards
2012-01-16 20:43 ` Sergei Gavrikov
2012-01-16 21:11 ` Sergei Gavrikov
2012-01-17 9:58 ` Bernard Fouché
2012-01-17 10:38 ` Paul Beskeen
2012-01-17 12:28 ` Sergei Gavrikov
2012-01-23 0:59 ` Jonathan Larmour
2012-01-14 16:25 ` Ilija Kocho
2012-01-23 1:13 ` Jonathan Larmour
2012-01-23 18:40 ` Ilija Kocho
2012-01-23 19:29 ` Jonathan Larmour
2012-01-25 12:30 ` Alex Schuilenburg
2012-01-25 20:59 ` Ilija Kocho
2012-01-26 13:36 ` Alex Schuilenburg
2012-01-26 20:18 ` Ilija Kocho
2012-02-13 22:02 ` eCos GNU tools 4.6.2-20120125 ready for testing [Was Re: Gnutools: consideration for upgrade to GCC 4.6] Ilija Kocho
2012-02-20 16:00 ` Alex Schuilenburg
2012-02-20 20:45 ` Ilija Kocho
2012-03-02 16:36 ` Alex Schuilenburg
2012-03-03 13:32 ` Ilija Kocho
2012-03-04 0:10 ` Alex Schuilenburg
2012-03-04 17:49 ` Sergei Gavrikov
2012-03-04 23:08 ` Alex Schuilenburg
2012-03-04 19:37 ` eCos GNU tools 4.6.2-20120125 ready for testing John Dallaway
2012-03-04 23:47 ` Alex Schuilenburg
2012-03-05 8:00 ` Sergei Gavrikov
2012-03-07 13:51 ` Sergei Gavrikov
2012-03-07 11:58 ` Alex Schuilenburg
2012-03-07 13:01 ` Ilija Kocho
2012-03-07 13:39 ` Sergei Gavrikov
2012-03-07 13:13 ` John Dallaway
2012-03-12 16:43 ` Alex Schuilenburg
2012-03-16 15:05 ` Alex Schuilenburg
2012-03-08 17:28 ` Alex Schuilenburg
2012-03-09 9:39 ` Ilija Kocho
2012-03-09 17:15 ` Alex Schuilenburg
2012-03-10 17:16 ` John Dallaway
2012-03-12 16:12 ` Alex Schuilenburg
2012-03-13 13:31 ` Alex Schuilenburg
2012-03-13 14:16 ` Ilija Kocho
2012-03-13 17:47 ` Sergei Gavrikov
2012-03-15 8:50 ` John Dallaway
2012-03-17 14:50 ` Sergei Gavrikov
2012-03-17 20:58 ` John Dallaway
2012-03-17 16:44 ` Stanislav Meduna
2012-03-18 19:10 ` eCos GNU tools 4.6.3-20120315 [Was Re: eCos GNU tools 4.6.2-20120125 ready for testing] Ilija Kocho
2012-04-04 12:57 ` Lambrecht Jürgen
2012-04-04 13:18 ` Ilija Kocho
2012-05-31 8:42 ` Bernard Fouché [this message]
2012-03-05 8:30 ` eCos GNU tools 4.6.2-20120125 ready for testing Tomas Frydrych
2012-03-05 8:56 ` Tomas Frydrych
2012-03-05 9:50 ` John Dallaway
2012-03-05 9:55 ` Anders Montonen
2012-03-05 14:20 ` John Dallaway
2012-03-05 10:16 ` Ilija Kocho
2012-03-05 12:56 ` Tomas Frydrych
2012-03-03 12:58 ` eCos GNU tools 4.6.2-20120125 ready for testing [Was Re: Gnutools: consideration for upgrade to GCC 4.6] Sergei Gavrikov
2012-01-17 9:37 ` Gnutools: consideration for upgrade to GCC 4.6 Tomas Frydrych
2012-01-17 16:10 ` Stanislav Meduna
2012-01-17 16:25 ` Tomas Frydrych
2012-01-17 16:45 ` Ilija Kocho
2012-01-20 14:42 ` Frank Pagliughi
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