[meta-xilinx] [PATCH] tune-zynq: Change ABI to hard-float with thumb

[Manjukumar Harthikote Matha]

All,

> Ok so this is a pretty significant change. Couple of things I would
> like to know first from the Xilinx side.
>
> * Is it now Xilinx's position to use hard-float and thumb support for
> all linux software? (aka does PetaLinux also default to
> hard-float+thumb, XSDK too?)

Yes, Petalinux and XSDK will default to hard-float+thumb

> * What is the backwards compatibility stance from Xilinx since up
> until now all Zynq Linux software had been recommended to use soft-fp?
Toolchain will ship Codesourcery version which had soft-fp but this is 
going to be deprecated soon. Petalinux will ship only with 
hard-float+thumb linaro based toolchain. SDK will default to linaro 
toolchain as well.

> * What is the plan from Xilinx to inform users of this change? (news
> posting? Xilinx Wiki page? etc?)
>
 From Xilinx SDK Team: SDK release notes are provided along with 
installer and marketing handles communicating to customer through any 
other means. The message is provided to all processor specialists and 
field over a presentation who interact directly with the customers.

> Just for reference the reason why this is set the way it is:
> https://lists.yoctoproject.org/pipermail/meta-xilinx/2015-July/001060.html
>
> Now on the meta-xilinx side, there has been some desire for this
> change for a while and I am definitely for it if Xilinx is planning of
> defaulting to this configuration.
>
> The only issue I see is with users that still expect the soft-fp
> configuration by default, so if anyone using meta-xilinx has this
> expectation please speak up. Also on the other side of things anyone
> who is for this change please post some comments/feedback. I want to
> get a good understanding of any issues/expectations around this before
> jumping ahead.
>

Thanks
Manju