2d0eee8395
The amd64 port copied some code from i386 to fetch function arguments and display them in backtraces. However, it was commented out and can't easily be implemented since the function arguments are passed in registers rather than on the stack in amd64. Remove it in preparation for some bug fixes in this area. Reviewed by: jhb Sponsored by: EMC / Isilon Storage Division Differential Revision: https://reviews.freebsd.org/D2857