[yocto] cortexa9t2hf instead of cortexa9hf

[Arno Steffens]

Hello Zoran,
thanks. As far as I understand is thumb2 another mode of coding, that might create more compact code.
But I want to keep all compatible to my previous tool-chain and settings.
The only file where I can found this "cortexa9t2hf" is
./meta/conf/machine/include/tune-cortexa9.inc
but I can't see how I can control Yocto to generate "cortexa9hf-neon" as before.
Or have I been wrong the time before?

bitbake gives me in 2.5:

TUNE_FEATURES        = "arm armv7a vfp thumb neon callconvention-hard cortexa9"
TARGET_FPU           = "hard"

and in 2.7:
TUNE_FEATURES        = "arm vfp cortexa9 neon thumb callconvention-hard"
TARGET_FPU           = "hard"

so armv7a seem to be missing. In terms of thumb both is same. But is that the reason? Where to set it?
Arno

>
> Hello Arno,
>
> Your question, per say, has little to do with YOCTO forum. But I'll
> try (as my best) to answer your question.
>
> Cortexa9hf should be armv7 A9 Hard Floating (it contains HW FP unit).
>
> Cortexa9t2hf is by analogy armv7 A9 T2 Hard Floating. Now, the
> question is what is T2? T2 is addition to the previous architecture
> Cortexa9hf, and addition is Thumb-2 mode.
>
> Hope this helps,
>
> Zoran
> _______
>
> On Mon, Jun 17, 2019 at 2:03 PM Arno Steffens <star at gmx.li> wrote:
> >
> > I switched from Yocto 2.5 to 2.7 and recognised a new architetcure name.
> > Instead of cortexa9hf it is now build for cortexa9t2hf? Did I do something wrong or what exactly does this t2 mean?
> > Target system is a Zynq7020 system.
> > --
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