[U-Boot-Users] software FP yada yada yada

[Ulf Samuelsson]

> Dear Ulf,
> 
> in message <011f01c6ee45$0eefaba0$0d68fe51 at atmel.com> you wrote:
>> 
>> According to the crosstool documentation at www.kegel.com:
>> 
>> Most combinations of gcc 3.x.x and binutils fails when you try to build a softfloat toolchain
>> All tested combinations of gcc-4.x.x and binutils fails if softfloat is enabled.
>> If you want to use gcc 4, you cannot build u-boot as is.
> 
> This is not correct. See for example ELDK 4.0: based on GCC 4.0, based
> on crosstool, and works just fine :-)
> 

I quite often work with customers which has little or no experience with Linux
but still wants to start using this for new embedded systems

My goal is to have a customer download a file, decompress it and type make.
After that, everything needed to install a demo on a target should be ready.

I have choosen to use "buildroot" as the framework for this.

Buildroot will build the toolchain as part of the build process, so there is no need
to download and install a toolchain.
Avoiding extra steps like this has high value to me.

It is going to be very complicated to use buildroot with two toolchains and
there is of course nothing in buildroot which installs ELDK as the toolset.

I do want to have u-boot built as part of the buildroot make process.

Since most combinations of gcc/binutils fail it is much easier to use a 
NWFPE version of the compiler also for U-boot.



>> It is worth 10s of kB to be able to use a single toolchain to build
>> u-boot, Linux and filesystem
> 
> Agreed. That's how we do it with the  ELDK.  I  don't  see  why  this
> should be impossible for others.
> 
> Best regards,
> 
> Wolfgang Denk
> 


Best Regards
Ulf Samuelsson                ulf at atmel.com
Atmel Nordic AB
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