The Stack View

The stack view is the list located above the source code view and under the local variables view. It shows the current stack trace.

Single-clicking on an entry in the stack view switches the code view, as well as the variables view, to the scope of the selected stack frame

Notes: By default, the debugger attempts to use stack unwinding information generated by the compiler, when available, rather than using the frame pointer register. This enables debugging programs compiled with -fomit-frame-pointer.

However, the STABS debug format does not provide frame unwinding information. Older versions of GCC such as 2.95 did not use the DWARF format by default. If you have an older GCC, compile your programs with -gdwarf-2, or -gdwarf-2n, where n is the debug level, 3 being the most verbose.