Debugging Multithreaded Programs

Use GDB to inspect the state of multiple threads within a running program.

Set thread-specific breakpoints and navigate between thread backtraces in GDB to diagnose hangs.

Use Valgrind's Helgrind tool to automatically detect data races in a C program.

Use Valgrind's DRD tool to detect deadlocks and other threading errors.

Use Valgrind's memcheck to detect memory leaks specific to thread resources (e.g., un-joined threads, un-destroyed mutexes).