>The main problem I have with ltrace is that even though there’s a -p option (“Attach to the process with the process ID pid and begin tracing”), I don’t think

>The main problem I have with ltrace is that even though there’s a -p option (“Attach to the process with the process ID pid and begin tracing”), I don’t think I’ve ever been able to get that option to work. When I run sudo ltrace -p SOME_PID, nothing happens, even though I’m pretty sure the process I’m tracing is calling library functions. >I don’t fully understand why ltrace can’t attach to processes, but that’s not what this post is about. I use ltrace to attach to specific PIDs all the time, across a variety of linux distributions and versions. Unsure what is going wrong here when Julia attempts to do it.