Strace can be used as a debugging tool, or as a primitive profiler. As a debugger, you can see how given system calls were called, executed and what they return.

As Matthew said, strace uses the ptrace (2) system call to work its magic. ptrace is used to implement debuggers and other tools which need to inspect what another program is doing. …

I used strace to attach to a process briefly. The process created 90 threads. When I found the offending thread, I had to tediously search for the parent thread, then the grandparent thread, …

Feb 4, 2013 · If I want to strace a multi-threaded process (of all of its threads), how should I do it? I know that one can do strace -f to follow forked process? But how about attaching to a …

Mar 8, 2012 · I need to track read system calls for specific files, and I'm currently doing this by parsing the output of strace. Since read operates on file descriptors I have to keep track of the …

Jan 27, 2018 · My question is: Does strace -f work differently when run inside a docker container? Note that this application starts and stops in 2 seconds - so the tracing tool has to follow the …

Sep 8, 2014 · strace -f -tt -p <pid> The man page is uncertain about when the call has been finished. If a system call is being executed and meanwhile another one is being called from a …

Aug 12, 2022 · I've been trying to use strace in order to track system calls executed when running a native application written in c/c++. After several tries on a &quot;real world&quot; app I …

The strace command is normally used as in strace commandname command args and it launches commandname -- easy, but in this Android use case, not helpful. However, strace has a -p …

Nov 11, 2013 · I am writing an application in linux and need to access the serial port. For debugging purposes I need to snif what comes and/or goes through the serial port. I looked …