You could also use GDB's Dynamic Printf (https://sourceware.org/gdb/current/onlinedocs/gdb.html/Dynamic-Printf.html https://sourceware.org/gdb/current/onlinedoc

You could also use GDB's Dynamic Printf (https://sourceware.org/gdb/current/onlinedocs/gdb.html/Dynamic-Printf.html https://sourceware.org/gdb/current/onlinedocs/gdb.html/Dynam...) to do the logging directly from GDB. Essentially you set it like a breakpoint (attaching a printf style string to a code location) and then just "continue" until you've gathered what you want.