Cannot build GCC for Cortex-M0

Richard Earnshaw
Wed Sep 1 15:58:00 GMT 2010

On Tue, 2010-08-31 at 03:16 -0700, Andriy Sukhynyuk wrote:
> Hi guys,
> I have been trying to build cross toolchain for  Cortex-M0 (using MinGW/msys) 
> for quite a while with no success.
> I  tried to run configure with many different arguments. 
> Particularly I  am interested to know why the following line is successful for  
> strongarm1110 build but if I change --with-cpu to --with-cpu=cortex-m0  the 
> build would fail with complaint"cannot compute suffix of object files".
> ../gcc-4.5.0/configure  --target=arm-none-eabi --with-cpu=strongarm1110 
> --build=i686-pc-mingw32  --host=i686-pc-mingw32 --prefix=/f/cross-gcc/4.5.0 
> --disable-nls  --disable-shared --disable-threads --with-gnu-gcc --with-gnu-ld  
> --with-gnu-as --with-dwarf2 --enable-languages=c,c++ --disable-interwork  
> --disable-multilib --with-gmp=/f/cross-gcc/4.5.0  --with-mpfr=/f/cross-gcc/4.5.0 
> --with-mpc=/f/cross-gcc/4.5.0  --with-newlib  
> --with-headers=../../newlib-1.18.0/newlib-1.18.0/newlib/libc/include  
> --disable-libssp --disable-libstdcxx-pch --disable-libmudflap  --disable-libgomp 

Cortex-m0 is a thumb-only core.  You may also need to add
--with-mode=thumb as well.

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