Re: Are there SPARC [or other] aligned memory access requirements to avoid exceptions? [now that 11.0's armv6/v7 is allowing more unaligned accesses]

Mark Cave-Ayland <[email protected]> Fri, 27 May 2016 12:45:15 +0100

Newsgroups	gmane.os.freebsd.devel.toolchain,gmane.os.freebsd.devel.arm,gmane.os.freebsd.devel.sparc
Message-ID	<[email protected]>

On 27/05/16 12:35, Mark Millard wrote:

>> 1 - figure if this affects other RISC architectures.  Cedric got the
>> SPARC on the hook, but I'm open for input on other arch's.
>>
>> If someone can report back if the lzo2 port runs into
>> unaligned-access-emulation traps on FreeBSD/sparc*, that would be
>> helpful. I do not have access to SPARC computers any more.
> 
> I also have no access to any SPARC variants.

If you grab yourself a copy of the latest QEMU 2.6, you should be able
to happily install FreeBSD-current under qemu-system-sparc64 in
-nographic mode. The emulation is still a work-in-progress but one of
its primary use cases is allow people to generate builds even if they
don't have access to the real hardware.


ATB,

Mark.