Is there any way to set a breakpoint in gdb that is conditional on the call stack?

Question

I am debugging C++ in gdb 7.1 on Linux.

I have a function a() that is called in many places in the code. I want to set a breakpoint in it, but only if

Answer 1

A simpler solution than Python scripting is using a temporary breakpoint.

It looks like this:

b ParentFunction
command 1
  tb FunctionImInterestedIn
  c
end

Every time you break in ParentFunction, you'll set a one-time breakpoint on the function you're actually interested in, then continue running (presumably until you hit that breakpoint).

Since you'll break exactly once on FunctionImInterestedIn, this won't work if FunctionImInterestedIn is called multiple times in the context of ParentFunction and you want to break on each invocation.