[U-Boot] Build errors u-boot-v2 iMX27

[Sascha Hauer]

Hi Bill,

On Mon, Apr 20, 2009 at 10:57:49AM -0400, Bill Cook wrote:
> Dear ML,
> 
> I'm trying to build u-boot-v2 for an iMX27 based board. I'm getting a
> HW/SW floating point mismatch error and hope someone will point me
> to a solution.  Building with:
>   make ARCH=arm CROSS_COMPILE=arm-eabi-
> It works along fine until I get an error on each of these files:
>   arch/arm/lib/_ashldi3.o
>   arch/arm/lib/_ashrdi3.o
>   arch/arm/lib/_divsi3.o
>   arch/arm/lib/_modsi3.o
>   arch/arm/lib/_udivsi3.o
>   arch/arm/lib/_umodsi3.o
>   arch/arm/lib/_lshrdi3.o
>   arch/arm/lib/findbit.o
>   arch/arm/lib/io-readsb.o
>   arch/arm/lib/io-readsw-armv4.o
>   arch/arm/lib/io-writesb.o
>   arch/arm/lib/io-writesw-armv4.o
> 
> Error is:
> 
> arm-eabi-ld: ERROR: arch/arm/lib/_ashldi3.o uses hardware FP, whereas
> arch/arm/lib/built-in.o uses software FP
> arm-eabi-ld: failed to merge target specific data of file
> arch/arm/lib/_ashldi3.o
> 
> 
> The source files are assembly, any C files have the -msoft-float compile option.
> What gives?

All our toolchains produce soft float by default, so this does not show
up here. U-Boot does not use floating point, so I think we do not have
to care what the compiler produces. Does it help to remove the
-msoft-float from arch/arm/Makefile?

Sascha

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