Tom Tromey <tro...@redhat.com> writes: > * Use an fd, not SIGCHLD+wait, to report inferior state changes to gdb. > Internally we're already using a self-pipe to integrate this into > gdb's main loop. Relatedly, don't mess with the inferior's parentage.
How would having a kernel based solution be better over your user space simulation? BTW there's the new signalfd() system call that might do it (haven't checked if it works for SIGCHLD) > * Support "displaced stepping" in the kernel; I think this would improve > performance when debugging in non-stop mode. Not sure what "displaced stepping" is exactly, but it sounds like the branch tracing extensions that got added a few releases ago? On modern Intel chips they give you a branch buffer in memory. -Andi -- a...@linux.intel.com -- Speaking for myself only.
