c - Generating function call graph -

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i using egypt tool visualize call graphs of c files.

using option --include-external 1 can see calls functions defined externally (in libraries, other project .c files etc.)

i wondering if there way know in file external function declared? not tool, in general feasible during stage of compilation know location of function called?

you can use eclipse cdt. configure include paths , library paths . can navigate functions provides call hierarchy.


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