Hi Joel, > The nios2 build of gcc 4.9.1 with binutils 2.20 Is there a particular reason that you are using binutils 2.20 and not 2.24 ? I am guessing that this bug is probably fixed in 2.24. (I am able to build a nios2-rtem4.11 toolchain locally using 4.9 and binutils master sources). Cheers Nick