LLVM & Clang can't compile for a supported arch

Question

Under Ubuntu 64 bit I got

llc --version
LLVM (http://llvm.org/):
  LLVM version 3.1
  Optimized build with assertions.
  Built Oct 15 2012 (18:15:59).
  Defa         


        

Answer 1

"-arch arm" is equivalent to "-arch armv4t" in clang. I suppose that a generic "arm" target is not allowed with "-march=", which should require something more precise, such as "armv6", "thumbv7", "armv4t", ...

Try selecting a specific subarch.