Hide executable symbols from nm command

Question

The nm command lists all symbols in executable. this is good guidance for reverse engineering and crackers. I want to hide them. The gcc maybe has switches for this purpose but I do not use gcc. Is there an approach to hide them directy from binary file?

Thanks.

Answer 1

You can use the strip command.

But I won't bother that much removing symbols. Very probably, your program might not interest a lot of people (as most programs). And if there is a security issue, it could eventually be found (e.g. by using strace to understand the behavior) even on stripped binaries.

Answer 2

strip will "strip" (remove) symbols from a binary.