Hi Maintainers, The attached patch removes "machine-gmon.h" file under aarch64 which is supposed to define custom "mcount" routine. Instead the plan is to use the generic version of the "mcount" routine which glibc already provides. I have submitted a GCC patch that is needed to emit "_mcount" and set up the frame. ref: http://gcc.gnu.org/ml/gcc-patches/2013-05/msg00597.html This is under review/discussion. ChangeLog 2013-05-20 Venkataranmanan Kumar * sysdeps/aarch64/machine-gmon.h: Remove. ok for trunk? regards, Venkat.