Devconf.cz 2023

strace is a diagnostic, debugging and instructional utility for Linux.
In this talk the maintainer of strace will describe features of modern strace and demonstrate what kinds of problems they help to solve, focusing on new features implemented since the previous strace talk at DevConf.cz 2019:
* seccomp-assisted system call filtering using --seccomp-bpf option
* system call return status filtering using --status option
* poke injection using poke_enter and poke_exit syscall tampering options
* interval specification in "when=" syscall tampering option
* PID namespace translation using --decode-pids=pidns option
* display of command names for PIDs using --decode-pids=comm option
* display of SELinux contexts using --secontext option
* display of syscall numbers using --syscall-number option
* call summary configuration using --summary-columns option
* daemonising strace using --daemonize option
* new syscall filtering classes: %clock, %creds
* display of strace tips using --tips option