Sparc64 support

[Baptiste Daroussin]

On Fri, Aug 07, 2015 at 04:54:46PM -0700, Adrian Chadd wrote:
> Hi,
> 
> I've tested it with mips/mips64. It works out mostly okay. There are
> still rough edges, because in the mips world we have different
> defaults in our base system gcc to what the current toolchain expects.
> But at least for mips/mips64 it spits out a kernel and binaries that
> work.
> 
> What I did to make the MIPS bits call the external toolchain:
> 
> make <existing options> NO_WERROR=1 CROSS_TOOLCHAIN=mips-gcc buildworld
> 
> .. so in theory the sparc64 stuff may just be:
> 
> pkg install sparc64-gcc sparc64-xtoolchain-gcc
> make <existing stuff> NO_WERROR=1 CROSS_TOOLCHAIN=sparc64-gcc buildworld
> 
When I added the cross toolchain it was first tested on sparc64 and people
reported that it built and run fine with it.

This was with gcc 4.9, I haven't tested with 5.2

Bapt
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