How to add breakpoints to fill in the rest of the function name via gdb tab completion?

Question

I want to add a breakpoint at the function name (e.g. foo::step) to debug how this function is executed. This function (foo::step) is a member of a linked library which has been built with debug symbol. Every time I set a breakpoint with b foo::step, I had to type the entire function name, which is cumbersome for complex function names. I have tried to autocomplete the function name via tab completion, but this is not working. I don't know if this is because this function is derived from a linked library.

I’d like to fill in the rest of the function name when setting breakpoints at function name, and this function is derived from a linked library.

Answer 1

As suggested by @n. m. could be an AI,

Try setting the breakpoint after executing start gdb command.

tab completion will work after the start command is executed.