gcc-3.3.3 and softfloat?

Steven Scholz steven.scholz@imc-berlin.de
Fri Dec 3 11:31:00 GMT 2004

Hi there,

I am using gcc-3.3.3-glibc-2.3.2-linux-2.6.8 from crosstool-0.28-rc37 for ARM9.

export KERNELCONFIG=`pwd`/arm.config
export TARGET=arm-softfloat-linux-gnu
export GCC_EXTRA_CONFIG="--with-float=soft"
export GLIBC_EXTRA_CONFIG="--without-fp"
export BINUTILS_DIR=binutils-2.15
export GCC_DIR=gcc-3.3.3
export GLIBC_DIR=glibc-2.3.2
export LINUX_DIR=linux-2.6.8
export GLIBCTHREADS_FILENAME=glibc-linuxthreads-2.3.2

Do I have to pass -msoft-float when compiling applications with floating point 
operations? Or is this flag on by default?

How do I know if floating point operations are realy handle by the softfloat 
functions and not by the kernel emulator?

Steven Scholz

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