Hi all, I wonder if there is a software that can help us determine all possible origins of a function call. For example: /* in file f1.c */ int f1() { x_func(); } /* in file f2.c */ int f2() { x_func(); } If we want to trace the origin of all function calls to x_func(), the output will be: f1.c:f1() f2.c:f2() This is very useful when reading the source code. All answers are appreciated. Thank in advance :D