> I provided a destructor for GMPI_Factory. If I call GMPI_DllClose() > before exiting from main(), then I get a segfault.
Google groups.. " I'm running into a problem on Linux while dynamically loading and unloading DSOs. The problem is, if I build with --fuse-cxa-atexit I get a segmentation fault on exit from main()"
`-fuse-cxa-atexit'
Register destructors for objects with static storage duration with
the `__cxa_atexit' function rather than the `atexit' function.
This option is required for fully standards-compliant handling of
static destructors, but will only work if your C library supports
`__cxa_atexit'.http://groups.google.co.nz/groups?hl=en&lr=&threadm=5e0d1266.0408310613.3345e97a%40posting.google.com&rnum=3&prev=/groups%3Fq%3Ddlclose%2Bcrash%2Bmain%26hl%3Den%26lr%3D%26selm%3D5e0d1266.0408310613.3345e97a%2540posting.google.com%26rnum%3D3
Would be nice to have standard-complient code.
Hope that helps, jeff
On Wed, Feb 23, 2005 at 02:28:33PM -0800, Tim Hockin wrote:
On Thu, Feb 24, 2005 at 11:26:49AM +1300, Jeff McClintock wrote:
It blows up after the final return of main. What I suspect is that the GMPI_Factory destructor is being called, but the DLL is already unloaded.
Does putting a printf("Factory destructor.. int the destructor provide more info (may have to provide a destructor, I didn't)?
I provided a destructor for GMPI_Factory. If I call GMPI_DllClose() before exiting from main(), then I get a segfault. If I don't call DllClose, the GMPI_Factory destructor DOES run.
If I don't provide a destructor, it fails to load the DLL: undefined symbol: _._12GMPI_Factory
So I made the Factory instance use new and delete and actually be refcounted.
Problem gone. I'll post all the code as soon as I have assured myself that both the C and C++ are correct. Like I said - I'm learning some C++ as I go :) Google is a good teacher.
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