Re: Stupid question: linking with a symbol under a different name

[Sasha Unknown <sasha2048 at gmail dot com>]

Hello.

1. This is possible only with function. If it's a variable, I can't 
create "wrapper variable" for it. (E.g. if symbol2 is "int" variable, I 
of course can create foo.c with "int * const symbol1 = &symbol2", but 
this won't match symbol1 convention from main.o, which expects symbol1 
to be "int", not "int *".)

2. Even with function this gives some overhead (one additional call; 
AFAIK, wrapper function won't be inlined in this case).

Thanks.

[Sorry for duplicate, first reply was accidentally sent to wrong address.]

On 06.10.16 15:58, Nick Clifton wrote:
> Hi Sasha,
>
> > Suppose I have:
> > - compiled object file "main.o" with unresolved symbol "symbol1";
> > - build shared library "libused.so" with exported symbol "symbol2".
> >
> > Is there way to somehow link program "main" from "main.o", telling it 
> > to use "symbol2" from "libused.so" as "symbol1"?
> Why not create a foo.c file that defines symbol1 and then passes any 
> reference on to symbol2 ?
>
> Cheers
>    Nick