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Re: dlclose not calling destructors of static variables.
On Tue, Feb 02, 2010 at 09:36:54AM +0000, Andrew West wrote:
>On 01/02/2010 21:24, Dave Korn wrote:
>> On 01/02/2010 20:45, Andrew wrote:
>>> I'm not looking to submit a patch to fix this, I'll leave that up to the
>>> professionals who have a better idea about the whole picture. It's just
>>> I've hit a brick wall with my code with this bug so I'm looking for some
>>> work arounds for myself.
>> No, really, you've been a ton of help, thanks a million. Try the patch I
>> just posted to the cygwin-patches list, on top of current CVS:
>> That should get you going with your current DLLs.
>> Next step is to add the cxx abi functions. I found an old patch lying
>> around, seems I started looking at this back in August and then lost track of
>> it somehow (probably in the rush approaching the end of gcc stage 1, I guess),
>> so I owe you apologies for the inconvenience.
>O.k. I've changed remove_dll_atexit to;
>remove_dll_atexit (const dll *d)
> unsigned char *dll_beg = (unsigned char *) d->handle + 0x1000;
> unsigned char *dll_end = (unsigned char *) d->p.data_start;
According to gdb, setting dll_end to this is functionally equivalent to
using AllocationBase + RegionSize. I thought you tried that already.
>I tested my changes against my simple test case and against my full program and they
>both seems to work fine.
I've gotten rid of remove_dll_atexit and implemented Dave's other idea of
specifically calling cxa_atexit when atexit is called from a DLL. I realize
this morning that this might require some additional tweaking to preserve
the same order of calling but that's easily done.
I'm waiting for approval on a newlib patch before rolling a new snapshot
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