Re: Building toolchain with Cirrus Logic MaverickCrunch support

[Dan Kegel <dank at kegel dot com>]

Grant Likely wrote:
> I noticed in the GCC 3.4 release notes that gcc now support the
> MaverickCrunch engine on the Cirrus Logic EP93XX ARM920T devices.  It
> also says that multilib support can be enabled for this part by
> editing "gcc/config/arm/t-arm-elf".
>
> However, I understand that crosstool disables multilib so if I want to
> use the MaverickCrunch support in libgcc then I need to build a new
> crosstool target.
>
> I decided to use demo-arm9tdmi.sh and arm9tdmi.dat as a starting point
> for the EP9312 build so I copied them to demo-arm-ep9312.sh and
> arm-ep9312.dat.  (I've attached the patch)
>
> The toolchain compiled, and it appears to be building code with crunch
> instructions; could somebody please take a look at what I've done and
> let me know if I'm doing things right?

Looks reasonable to me (though you can delete the lines from demo-arm-ep9312.sh
for gccs older than 3.4).  Now the question is, do the programs it
generates run on an ep9312 system?  Anyone have one to test on?
- Dan

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