dlopen() & undefined symbol

[Manuel Maria Diaz Gomez]

Hi Everybody,

maybe you can give me a hint about this.

I implemented a simple singleton Factory that will (among other things) keep
a registry of objects.
Objects register themself in the factory in the following way:

static MyObject myInstance;

/*-------------------------------------------------*/
MyObject::MyObject()
/*-------------------------------------------------*/
{
MyFactory::Instance()->Register("MyObject", this);

}

I created two separated dynamic libs, one for the factory, and one for my
test class, and when trying to load the last one
(i.e: void* handledll = dlopen("libMyObject.so", RTLD_NOW), after the
factory one has been open, I get an undefined symbol error :

libMyObject.so: undefined symbol: _ZN16MyFactory8InstanceEv
any ideas?
Regards

Manuel


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Manuel Diaz-Gomez | ATLAS Bldg. 32/SB-008 tel. [phone]
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================================================== ======================

[Thomas Matthews]

Manuel Maria Diaz Gomez wrote:

Hi Everybody,

maybe you can give me a hint about this.

I implemented a simple singleton Factory that will (among other things) keep
a registry of objects.
Objects register themself in the factory in the following way:

static MyObject myInstance;

/*-------------------------------------------------*/
MyObject::MyObject()
/*-------------------------------------------------*/
{
MyFactory::Instance()->Register("MyObject", this);

}

I created two separated dynamic libs, one for the factory, and one for my
test class, and when trying to load the last one
(i.e: void* handledll = dlopen("libMyObject.so", RTLD_NOW), after the
factory one has been open, I get an undefined symbol error :

libMyObject.so: undefined symbol: _ZN16MyFactory8InstanceEv
any ideas?
Regards

Manuel

Try asking in a Windows newsgroup, and please, give them more
context than you did here. Can you figure out what is going
on from the little bit of information you posted?
--
Thomas Matthews

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Other sites:
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[John Harrison]

>

Try asking in a Windows newsgroup, and please, give them more
context than you did here. Can you figure out what is going
on from the little bit of information you posted?

I think a Unix or Linux group is more likely

news:comp.unix.programmer for instance.

john