how to watch struct's change process use gdb

I'am now dealing with a new project, threre exist several struct for varaible transfering in parallel programming, can anybody give some hint on how to use gdb to watch struct chage proc开发者_开发技巧ess step by step, thanks first:)

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You can try GDB watch command. However, as stated by this link :

Warning: In multi-thread programs, watchpoints have only limited usefulness. With the current watchpoint implementation, GDB can only watch the value of an expression in a single thread.

If that's a deal breaker for you, I guess you will have to instrument your code to manually track changes.