On Mon, 2011-07-25 at 12:36 -0700, Da Zheng wrote: > I use elfutils-0.131. Maybe the version of elfutils is too low. Let me > see if I can build a newer version for my platform. O yes, please try with something newer. 0.131 is from 2007. Latest release is 0.152: https://fedorahosted.org/releases/e/l/elfutils/0.152/