[LLVMdev] using just llvm/clang for building mips llvm

[reed kotler]

On 03/27/2014 03:30 PM, Richard Pennington wrote:
> On 03/27/2014 04:17 PM, reed kotler wrote:
>> In case anyone is interested....
>>
>> We don't need to compile llvm/clang using gcc anymore for the 
>> building of mips hosted llvm compilers.
>>
>> We build a linux mips hosted compiler starting with llvm/clang on x86 
>> linux using the normal configure scripts and
>> then can use that resulting compiler to build further llvm/clang 
>> native compilers on the mips linux host.
>>
>> The cross compiler and native compiler driver for Mips works 
>> seamlessly (thanks to Simon Atanasyan) just as gcc does.
>>
>> For our build slave that is connected to the llvm build bots, we are 
>> using our native clang/llvm (built as above) to built the llc
>> that is used for make check.
>>
>> I'm doing some more work to automate the testing of the recursed 
>> compilers and other verification on the mips target.
> Hi Reed,
>
> Very cool. I'd love to know if my pre-compiled Mips toolchain for 
> ELLCC (http://ellcc.org), downloadable from ftp://ellcc.org/pub, can 
> actually run on a Mips. Any idea where I could find a Mips box to try 
> it on?
>
> It was compiled using a clang based x86_64 compiler, by the way.
> The ARM binaries work just fine, at least on Fedora ARM Linux running 
> under QEMU.
>
> -Rich
Hi Richard,

I could try it on one of ours. I'll take a look over the weekend. 
Anything special I need to do?

There are some fsf machines too that can be used for this purpose. I 
think that Rafael uses them sometimes.
You could ask him how to do that.

These edge pro routers are not too expensive and in principle you just 
need to nfs mount a file system and all should be cool.
They run debian.

http://www.ubnt.com/edgemax

Our 64 bit compiler seems also to be okay but i have not finished 
verifying everything.
I'm using a cavium board with support both 32 and 64 bit executables.

Reed