Re: using 'g++ -shared' causes Segmentation fault

[Mateusz Krzeszowiec]

*blush*

thanks!

Paul Pluzhnikov wrote:
> "facedancer" <Mateusz.Krzeszowiec@gmail.com> writes:
>
> > I'm trying to learn c++ for Linux and I've got a big problem.
>
> Actually, you don't have a problem ...
>
> > When I
> > try to link shared libraries to my program it always outputs
> > 'Segmentation fault' when I try to run it.
>
> You are trying to *run* a library, but libraries aren't "runnable"
> on any OS I know of [1].
>
> > Of course I was trying to
> > write something a bit more complicated ;) but after looking for a bug I
> > removed all code and realized that the bug is not caused my my mistake.
>
> Yes, it is. Your mistake is trying to run something that isn't
> intended to run.
>
> > g++ -c -otestSDL.o testSDLa.cpp
> > g++ -shared -otestSDLa testSDLa.o
> > ./testSDLa
> > output: Segmentation fault
>
> Don't do that ... Do this instead:
>
> > g++ -otestSDL.o testSDLa.cpp
> g++ -o testSDLa testSDL.o        # looks like you missed a step
> > ./testSDLa
> > output: ok
>
> Cheers,
>
> [1] Actually, on Linux 2 special libraries are runnable:
> ld-linux.so.2 and libc.so.6. This is achieved via special assembly
> magic, which is too advanced for a beginner to understand :)
> --
> In order to understand recursion you must first understand recursion.
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