How to REALLY strip a binary in MacOs

Question

MacOs 10.6, if I have a file \"unwanted.c\" which contains:

class secret_thing {
public:
secret_thing() {}
void revealing_method_name() {}
};

main()
{
    s         


        

Answer 1

Using the following compile line I successfully strip the symbols from the executable:

$ g++ -Xlinker -unexported_symbol -Xlinker "*" -o executable file.cpp
$ strip executable

Given the latest sample file, this results in:

$ nm executable
                 U __ZTVN10__cxxabiv117__class_type_infoE
                 U __ZTVN10__cxxabiv120__si_class_type_infoE
                 U __ZdlPv
                 U __Znwm
                 U ___cxa_pure_virtual
                 U ___gxx_personality_v0
0000000100000000 A __mh_execute_header
                 U _exit
                 U dyld_stub_binder