Unsupported DWARF version

Summary

RTEMS Tools does not support the version of DWARF GCC is now gnerating

Steps to reproduce

$ rtems-exeinfo -D build/arm/xilinx_zynq_a9_qemu/testsuites/samples/hello.exe
RTEMS Executable Info 6.423d98d2058a
 /opt/work/rtems/6/bin/rtems-exeinfo -D build/arm/xilinx_zynq_a9_qemu/testsuites/samples/hello.exe
May take a while ...
exe: build/arm/xilinx_zynq_a9_qemu/testsuites/samples/hello.exe

Compilation: 
 Producers: 0
 Common flags: 0
  |

DWARF Data:
error: dwarf:compilation_unit::sibling: Unsupported version [_dwarf_info_load(229)]

Resolution

Update elftoolchain to the latest in SVN on ELF Tool Chain on Sourceforge. The version is r4040-trunk.