Exporting symbols

[Dan Timis]

> From: Mike Hearn <mh at codeweavers.com>
> Subject: Re: Exporting symbols
> Date: Thu, 13 May 2004 10:39:42 +0100
> Organization: CodeWeavers, Inc
>
> On Wed, 12 May 2004 19:45:42 -0700, Dan Timis wrote:
>> After running strip on the .exe.so if we do nm -D all the symbols are
>> still there.  Is there any way to get rid of the ones that are not
>> needed for dynamic linking?
>
> Dmitry is right, ask on the binutils list. However if you hide symbols
> using the --retain-symbols-file trick or versioning scripts, you may be
> able to mangle the symbol table without breaking anything. Why not try 
> it
> - write a program to scan .symtab for the symbols you want to hide and
> scramble the strings. I'd be interested to hear the results.
>
> ELF was not really designed for code obfuscation like this though. I 
> think
> nvidia use a preprocessor to mangle symbols in the final binary, if you
> ask them they may be willing to tell you how it's done (maybe even give
> you the code).
>
> thanks -mike

Thanks Mike and Dmitry,  I'll try the binutils list.

I might do code obfuscation.  But, it may be safer for me to do 
something like:

#define MyClass      F18Rsjkfgwe6
#define MyMethod     aYSm48dYo49H

class MyClass {
	void MyMethod(cha *, bool);

etc.

rather than mess with the binaries.

Dan