llvm dev - Jul 2010 - [LLVMdev] Cross compiling llvm with arm toolchain

Hello all,

I was hoping someone may know a "good" version of the arm toolchain
when
cross compiling llvm and clang for ARM. I've tried arm-2008q3-72, 
arm-2009 and arm-2010q1-202 from code-sourcery with little success - 
arm2010q1 fails to compile, arm-2009 take an age to link and arm-2008q3 
seems to work but only when compiled with -O0. Does anyone have any 
advice on the matter?

Thanks for your help,
Jon

> I've tried arm-2008q3-72,
>  arm-2009 and arm-2010q1-202 from code-sourcery with little success -
>  arm2010q1 fails to compile, arm-2009 take an age to link and arm-2008q3
>  seems to work but only when compiled with -O0. Does anyone have any
>  advice on the matter?
CS's release series is renowned for being bug-ridden.

To be fair, this is probably because CS do bleeding-edge new GCC
developments without any community involvement. The good news is that
their ground-breaking work usually gets merged into mainline GCC
subsequently, and tested and quality-controlled as time goes by. So,
unless you need some feature only present in a CS release, you're more
likely to get a working cross-compiler by using one derived from the
main release sequence of GCC.
  One example is the ones provided by the emdebian.org - if you need
to install the Debian packages that emdebian provide onto a non-Debian
system, you can simply "ar x" the .deb file, the unpack the resulting
data.tar.gz in /, maybe also checking the contents of "control.tar.gz"
for any symbolic-link-creation in its "postinst" script.

Another way would be to use llvm itself, of course. All llvm binaries
can generate code for all supported processors.

    M

> Another way would be to use llvm itself, of course. All llvm binaries
> can generate code for all supported processors.
Well, this is not pretty true for ARM - llvm was able to bootstrap on
ARM only few weeks ago, so this might not be usable for any serious
usage.

-- 
With best regards, Anton Korobeynikov
Faculty of Mathematics and Mechanics, Saint Petersburg State University