[PATCH] ARM: fix build error with GCC 4.5.0

[Mikael Pettersson]

Rabin Vincent writes:
 > 2010/11/5 Mikael Pettersson <mikpe at it.uu.se>:
 > > Rabin Vincent writes:
 > >  > 2010/11/5 Mikael Pettersson <mikpe at it.uu.se>:
 > >  > > Indeed. I suspect an improperly patched or configured gcc-4.5.0,
 > >  > > or broken kernel sources. Especially considering that the kernel
 > >  > > passes -msoft-float to gcc (see above).
 > >  > >
 > >  > > I know gcc-4.5.0 configured for arm-linux-gnueabi built working EABI
 > >  > > kernels a few months ago.
 > >  >
 > >  > The kernel sources are clean Linus' tree, so I guess it must be the
 > >  > compiler configuration then.  Indeed, running the above mentioned cross
 > >  > compiler with -msoft-float -mabi=aapcs-linux even on an empty source
 > >  > file yields the same error.  I've cc'd Tony here who I believe builds
 > >  > these prebuilt compilers at http://kernel.org/pub/tools/crosstool/.
 > >
 > > How was that gcc configured? You can find out by running `arm-linux-gcc -v'.
 > 
 > $ arm-linux-gcc -v
 > Using built-in specs.
 > COLLECT_GCC=arm-linux-gcc
 > COLLECT_LTO_WRAPPER=[path
 > removed]/gcc-4.5.0-nolibc/arm-linux/bin/../libexec/gcc/arm-linux/4.5.0/lto-wrapper
 > Target: arm-linux
 > Configured with: /home/tony/buildall/src/gcc/configure
 > --target=arm-linux --enable-targets=all
 > --prefix=/opt/cross/gcc-4.5.0-nolibc/arm-linux/ --enable-languages=c
 > --with-newlib --without-headers --enable-sjlj-exceptions

That's an OABI compiler. You want a compiler configured for

	--target=arm-unknown-linux-gnueabi

and without that --enable-sjlj-exceptions as well.

OABI is super-legacy and essentially unsupported by current gcc.