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using C++ shared library from gst plug in , error

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RamaVasu Gundimeda

using C++ shared library from gst plug in , error

Hi,

The gstreamer sample gst plugin is failing to use my C++ shared shared library. The compilation , link and install is fine. But when the plugin is invoked with gst-inspect , it is failing with error undefined symbol "___gxx_personality_v0" in the linked shared library. It is because of plug-in is compiled with gcc and shared libary is compiled with gc++. ? What is the right way to fix it ?

Regards,
vasu.

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Danilo Freire

Re: using C++ shared library from gst plug in , error

I think that, to access C++ code from C, it is necessary to create some wrapper stuff in your C++ lib.
For instace, create a wrapper function do_stuff(X *x), something like this:

class X {
public:
    int number;

}

extern "C" int do_stuff()
{
   X *x = X::getSingleton();
   return x->number;
}
To handle a object in the C code, you can use a struct.

So, maybe, the problem is that in you shared library, it isnt used the extern "C" declaration.

[]s

On Fri, Jul 18, 2008 at 7:47 PM, RamaVasu <[hidden email]> wrote:

Hi,

The gstreamer sample gst plugin is failing to use my C++ shared shared library. The compilation , link and install is fine. But when the plugin is invoked with gst-inspect , it is failing with error undefined symbol "___gxx_personality_v0" in the linked shared library. It is because of plug-in is compiled with gcc and shared libary is compiled with gc++. ? What is the right way to fix it ?

Regards,
vasu.

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--
Danilo Freire

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Carsten-17

Re: using C++ shared library from gst plug in , error

In reply to this post by RamaVasu Gundimeda

Hi,
You can try to link the c++ library with the "-static-libgcc" option.
Regards Carsten

RamaVasu schrieb:

> Hi,
>
> The gstreamer sample gst plugin is failing to use my C++ shared shared
> library. The compilation , link and install is fine. But when the plugin
> is invoked with gst-inspect , it is failing with error undefined symbol
> "___gxx_personality_v0" in the linked shared library. It is because of
> plug-in is compiled with gcc and shared libary is compiled with gc++. ?
> What is the right way to fix it ?
>
> Regards,
> vasu.
>
> ------------------------------------------------------------------------
> Keep your kids safer online with Windows Live Family Safety. Help
> protect your kids.
> <http://www.windowslive.com/family_safety/overview.html?ocid=TXT_TAGLM_WL_family_safety_072008>
>
>
> ------------------------------------------------------------------------
>
> -------------------------------------------------------------------------
> This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
> Build the coolest Linux based applications with Moblin SDK & win great prizes
> Grand prize is a trip for two to an Open Source event anywhere in the world
> http://moblin-contest.org/redirect.php?banner_id=100&url=/
>
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> gstreamer-devel mailing list
> [hidden email]
> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel