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Date:      Thu, 17 Apr 2014 12:31:17 +0200
From:      Bernd Walter <ticso@cicely7.cicely.de>
To:        Tim Kientzle <tim@kientzle.com>
Cc:        freebsd-arm <freebsd-arm@freebsd.org>, Mark R V Murray <mark@grondar.org>
Subject:   Re: Building an ARM/RPI-B release (hacked) on CURRENT/AMD64.
Message-ID:  <20140417103117.GE44138@cicely7.cicely.de>
In-Reply-To: <EC41E53F-96EF-4652-9A02-D49448D104BE@kientzle.com>
References:  <9FDD6F0E-B2A9-48D9-A3E4-181868995FDA@grondar.org> <EC41E53F-96EF-4652-9A02-D49448D104BE@kientzle.com>

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On Wed, Apr 16, 2014 at 06:25:39PM -0700, Tim Kientzle wrote:
> 
> On Apr 15, 2014, at 12:23 PM, Mark R V Murray <mark@grondar.org> wrote:
> 
> > Hi Tim
> > 
> > I?ve been doing some local hacks to cross-build ARM/RPI releases on CURRENT/AMD64.
> > 
> > What I?m doing aren?t clean releases in that I want to use the state of /usr/src and /usr/ports ?as-is? and not a clean check out. This allows me to experimentally break stuff without having to check it in first. It also give me a way to build bootable images for when (not ?if?!) I mess things up properly on the RPI. It has the advantage also of being quicker than the usual release build.
> > 
> > (The hacks, as they stand now, are attached. I null-mount /usr/src and /usr/ports instead of checking them out, and I have local checkouts of crochet and u-boot to copy as checking them out during a release build fails too often.)
> > 
> > The problem is that sometime in the last month or so, things stopped working, and its taken me until now to have the time to have a look at it.
> > 
> > The problem is that during the u-boot build, a CLANG-based xdev build is used, and this has no *-gcc, only a *-cc. If I fix that with a symlink, clang then objects to the -ffixed-r8 option. Clang has an equivalent -ffixed-r9, but the u-boot that is  mandated for FreeBSD/Arm/RPI use doesn?t have the R9 fix.
> > 
> > Questions:
> > 
> > 1) Are you aware of any of this?
> 
> Yes.
> 
> > 
> > 2) Do you have a quick fix idea (preferably not involving GCC)?
> 
> No.  <sigh>
> 
> Right now, the ?get it working? answer is to install GCC XDEV tools.
> 
> Though I tried that on a clean system last weekend and it
> still failed to build.  Haven?t tracked down why.
> 
> > 
> > I?m rather short of time right now, but may be able to get to this over Easter.
> 
> Long-term, we?d all like to see U-Boot build with clang.
> 
> No idea yet whether that?s hard or not.  No idea if
> I?ll have time to work on it in the near future.

What are the symptoms with clang U-Boot?

-- 
B.Walter <bernd@bwct.de> http://www.bwct.de
Modbus/TCP Ethernet I/O Baugruppen, ARM basierte FreeBSD Rechner uvm.



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