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Re: [Qemu-devel] [PATCH 8/9] PPC: Add u-boot firmware for e500

From: Alexander Graf
Subject: Re: [Qemu-devel] [PATCH 8/9] PPC: Add u-boot firmware for e500
Date: Fri, 16 May 2014 16:21:47 +0200
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:24.0) Gecko/20100101 Thunderbird/24.5.0

On 16.05.14 16:08, Gerd Hoffmann wrote:

This is getting too messy. I guess we can live without supporting biarch
compilers and just ask people to have a 32bit ppc compiler handy. Then
things become a lot more sane.
I actually like biarch compiler support, especially as the fedora cross
compilers are biarch too.  But without getting biarch compiler support
into upstream u-boot it'll be pretty messy indeed ...

Yes, and supporting biarch properly would create quite some headaches. U-boot does support targets that are 64bit, so we can't just always declare the link target 32bit.

And the subdir thing didn't work for me either. However I did spot a good number of places where the makefile assumes that subdirs mean you only want to create a module and behave differently, so again it's fragile wrt updates.

I really think we're safest off ignoring biarch for now. When someone who knows the toolchain well wants to take another stab at it, he at least knows where to start based on my earlier patches ;)


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