On Mon, 2011-07-11 at 17:47 +0100, Richard Purdie wrote:
> On Mon, 2011-07-11 at 18:34 +0200, Koen Kooi wrote:
> > Taking armv7a as an example with my angstrom hat on I need the following
> > knobs:
> >
> > 1) softp or hardfp calling conventions, resulting in a different package
> > arch (e.g. armv7a vs armv7ahf) (link incompatible)
> > 2) neon or not, resulting in a different packagearch (e.g armv7a vs
> > armv7a-vfponly) (link compatible)
> > 3) Thumb2 or arm mode, no direct need for different packagearch, they are
> > compatible
> > 4) use FPU fw or not (TARGET_PFU) (slightly different from 2.)
> >
> > Do you have any examples on how the package arch will look with this
> > patchset?
>
> I added in code to differentiate between big and little endian. We can
> add in code to add extra options, e.g. in the tune-armv7 case:
>
>
> TARGET_CC_ARCH += "${@bb.utils.contains("TUNE_FEATURES",
> "callconvention-hard", "-mfloat-abi=hardfp", "-mfloat-abi=softfp" ,d)}"
>
> PACKAGE_EXTRA_ARCHS = "${TUNE_ARCH}${SUFX2} armv4${ENDSUFX}${SUFX2}
> armv4t${ENDSUFX}${SUFX2} armv5te${ENDSUFX}${SUFX2} armv6${ENDSUFX}${SUFX2}
> armv7${ENDSUFX}${SUFX2}"
Sorry, I hit sent early accidently whilst trying to paste something in
here.
I was thinking something along these lines:
TUNE_PKGARCH = "armv7${SUFX2}"
TARGET_CC_ARCH += "${@bb.utils.contains("TUNE_FEATURES", "callconvention-hard",
"-mfloat-abi=hardfp", "-mfloat-abi=softfp" ,d)}"
SUFX2 = "${@bb.utils.contains("TUNE_FEATURES", "callconvention-hard", "-hfp",
"" ,d)}
PACKAGE_EXTRA_ARCHS = "${TUNE_ARCH}${SUFX2} armv4${ENDSUFX}${SUFX2}
armv4t${ENDSUFX}${SUFX2} armv5te${ENDSUFX}${SUFX2} armv6${ENDSUFX}${SUFX2}
armv7${ENDSUFX}${SUFX2}"
Where "hardfp" support might be in tune-arm-feature-hardfp.inc
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