Stepping into a function (library function, etc) without debuginfo means that the DwflLine returned is null and line-stepping will fail. Need to determine satisfactory default behaviour for this case.
frysk-core/frysk/rt: 2006-11-23 Mike Cvet <mcvet@redhat.com> * RunState.java (setUpStep): If the DwflLine returned is null, perform an instruction step. Handles line stepping within frames without debug info. Temporary fix for #3575. * StackFrame.java (frameToString): Renamed from toString().
Something to keep in mind is the case of a signal delivery, and the handler being located in a section of code with debuginfo. That being the case, the stack would be: [debuginfo code - local singal handler] [non-debuginfo code - signal stuff] [debuginfo code - rest of program] The user may not necessarily want to skip over the handler, even though the signal delivery code is a non-debuginfo section. i Another possibility is to just require a breakpoint set on handler code if that is the area of interest.