Soft-float compiler for ARM

Richard Earnshaw
Wed Jan 28 16:36:00 GMT 2004

> Hi, 
> I'm trying to compile U-Boot with the PTXdist gcc-3.3.2 for ARM. It
> seems like libgcc was built with hard float support, whereas U-Boot
> requires soft float: the linker stage reports: 
> 	arm-linux-ld: ERROR: /tmp/arm-linux-3.3.2/lib/gcc-lib/arm-unknown-linux-gnu/3.3.2/libgcc.a(_udivsi3.oS) uses hardware FP, whereas u-boot uses software FP
> Does anybody know how I can configure gcc-3.3.2 in a way it generates
> libgcc with soft float support? I already tried --enable-softfloat and
> it does not work; the same configure arguments work fine with
> gcc-2.95.3. 

The ARM-Linux ABI says use hard float.  If you don't want to use that ABI, 
then don't use the arm-linux configuration; use a more appropriate one, 
such as arm-elf (which is soft-float by default).


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