CallGraph parses the ELF file and reads DWARF call frame information to determine frame sizes for each function, as far as that's possible.

stack size is fixed at compile time (no recursion etc).

Results after trying to determine the stack size of a function in the call graph.

Results after trying to determine the stack size of a function in the call graph.

not yet calculated.

child has unknown stack size.

CallNode is a node in the call graph (that is, a function).

SizeType indicates whether a stack or frame size could be determined and if not, why.