Jeffrey Walton <noloader@xxxxxxxxx> writes: > I'm interested in finding references to global variables in a compilation unit. > > I've found "nm [-D] ..." is helpful for archives and shared objects, > but its only useful if combined with grep and variable naming > conventions. For example, if naming conventions are punned, then "nm > -D mycoollib | grep g_" is useless. nm -D dumps dynamic symbols. I would recommend instead something like objdump -t -j .data | grep ' g ' That should give you all the global symbols defined in the .data section. You may want to add a few more sections. > Does gcc have such a warning? I don't think so. Ian