Enhance host bcc to allow cross-compilation (eg. debug arm codegen on host):
 eg. bcc -C armv7-none-linux-gnueabi # generate ARMv7
     bcc -C i686-unknown-linux       # generate x86 (default on Goobuntu)
 Other targets are not supported at this moment.

Change-Id: If2f1199656664327cf35cf6a3670136f48c42cad
10 files changed