On Wed, 2005-07-27 at 13:40 -0700, Kenneth Porter wrote: > BTW, while discussing debuggers, do any of the high-end x86 family include > the branch trace features commonly found in embedded processors? Yes. P6-era and Opteron/Athlon 64 processors have LastBranchToIP / LastBranchFromIP and LastExceptionToIP / LastExceptionFromIP MSRs that can be enabled at runtime. Pentium 4 and Pentium M derived processors can record the same data for the last four brances in to MSRs, and they also have a much more complicated system where you can record all branches to a buffer and get interrupts when that buffer would overflow, etc. Of course, Linux (and Linux debuggers) are still in the stone age and don't support any of this. Somebody really needs to take ptrace() and gdb out back and shoot them. -- Nicholas Miell <nmiell@xxxxxxxxxxx> -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx http://www.redhat.com/mailman/listinfo/fedora-devel-list
