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From: Wolfgang Denk <wd@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 1/2] tegra2: Always build with USE_PRIVATE_LIBGCC=yes.
Date: Thu, 05 Jan 2012 21:17:09 +0100	[thread overview]
Message-ID: <20120105201709.1195DB6F26@gemini.denx.de> (raw)
In-Reply-To: <4F05FCBD.2040207@nvidia.com>

Dear Stephen Warren,

In message <4F05FCBD.2040207@nvidia.com> you wrote:
>
> > No, this is NOT a solution, it is a workaround for an inappropriate
> > toolchain.  If you want to build code for an armv4t system, you must
> > use a tool chain that supports it.
> 
> But we don't want to generate code for ARMv4 in general, but rather

Then just turn on the ARMv4 specific options (-march=armv4t -mno-thumb
-mthumb-interwork -mtune=arm920t ???) for the files that need it.

But as soon as any of these files liks code from libgcc you have to
decide.

> ARMv7 as the toolchain does. Only a tiny part of the code needs to be
> built for ARMv4, and in general we want to benefit from using ARMv7.

Then you should probably still link against a ARMv4 specific libgcc.

If you were building U-Boot's libgcc code with optimization set for
ARMv7 this would not fix anything.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
I'd rather be led to hell than managed to heaven.

  reply	other threads:[~2012-01-05 20:17 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-11-17 10:04 [U-Boot] [PATCH 0/2] tegra2: Fixes for running mainline U-Boot Thierry Reding
2011-11-17 10:04 ` [U-Boot] [PATCH 1/2] tegra2: Always build with USE_PRIVATE_LIBGCC=yes Thierry Reding
2011-11-17 23:08   ` Simon Glass
2012-01-05 15:50   ` Wolfgang Denk
2012-01-05 16:53     ` Stephen Warren
2012-01-05 17:07       ` Simon Glass
2012-01-05 17:17         ` Tom Warren
2012-01-05 19:17         ` Wolfgang Denk
2012-01-05 19:16       ` Wolfgang Denk
2012-01-05 19:40         ` Stephen Warren
2012-01-05 20:17           ` Wolfgang Denk [this message]
2012-01-05 20:42             ` Simon Glass
2012-01-05 20:53               ` Stephen Warren
2012-01-05 23:20                 ` Wolfgang Denk
2011-11-17 10:04 ` [U-Boot] [PATCH 2/2] tegra2: Change CONFIG_SYS_TEXT_BASE to 0x00108000 Thierry Reding
2011-11-21 22:37   ` Simon Glass
2011-11-17 18:08 ` [U-Boot] [PATCH 0/2] tegra2: Fixes for running mainline U-Boot Stephen Warren

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