feature request: instruction tracing tool

Created by: rkgithubs

I see that even though there are two sample program for instruction tracing (basic/IA specific); there is no instruction tracing tool. There are two tools for function tracing (system calls and library calls). I found these two sample code talking about instruction trace collection but there are no further references on this topic. http://dynamorio.org/docs/samples/instrace_simple.c http://dynamorio.org/docs/samples/instrace_x86.c