[Buildroot] [PATCH] arch/arm: use EABIhf by default with VFP

[Peter Korsgaard <peter@korsgaard.com>]

>>>>> "Beno?t" == Beno?t Th?baudeau <benoit.thebaudeau.dev@gmail.com> writes:

 > On Sun, Oct 25, 2015 at 7:55 PM, Peter Korsgaard <peter@korsgaard.com> wrote:
 >>>>>>> "Beno?t" == Beno?t Th?baudeau <benoit.thebaudeau.dev@gmail.com> writes:
 >> 
 >> > Set EABIhf as the default target ABI for the ARM processors that have or
 >> > may have a VFP unit, since this ABI is the most efficient in that case.
 >> > Of course, EABI can still be selected manually if needed.
 >> 
 >> On a related note, should we default to thumb2 if the CPU supports it?

 > I would say:

 >     choice
 >            prompt "ARM instruction set"
 >            default BR2_ARM_INSTRUCTIONS_ARM if BR2_ARM_CPU_HAS_ARM
 >            default BR2_ARM_INSTRUCTIONS_THUMBS2 if BR2_ARM_CPU_HAS_THUMBS2
 >            default BR2_ARM_INSTRUCTIONS_THUMBS if BR2_ARM_CPU_HAS_THUMBS

I'm not sure it makes sense to default to thumb1 even if the CPU
supports it because of various compatibility issues - So simply:

default BR2_ARM_INSTRUCTIONS_THUMBS2 if BR2_ARM_CPU_HAS_THUMBS2

(if no thumb2 is available, the first available option (ARM) is used).

-- 
Venlig hilsen,
Peter Korsgaard