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Date:	Mon, 10 May 2010 09:00:02 +0000 (GMT)
From:	Marco Atzeri <marco_atzeri AT yahoo DOT it>
Subject:	run_ctors
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Hi Dave,
I am trying to build a pure cygwin version of Freefem
a C++ software for FEM analysis.
http://www.freefem.org/ff++/

The program works fine, with minor source change,=20
except the capability to dynamically load dlls to
extend the functionality.

=46rom the backtrace I have the impression that the loaded
library msh3.dll has a access problem to a constructor=20
"TheOperators" that is located in the calling libff.dll.

Program received signal SIGSEGV, Segmentation fault.
0x66c83a12 in Polymorphic::Addp () from /usr/local/bin/libff.dll
(gdb) backtrace
#0  0x66c83a12 in Polymorphic::Addp () from /usr/local/bin/libff.dll
#1  0x624dbca1 in _fu952__TheOperators () from /usr/local/lib/ff++/3.8/lib/=
msh3.dll
#2  0x624dcf1c in global constructors keyed to msh3.cpp ()
   from /usr/local/lib/ff++/3.8/lib/msh3.dll
#3  0x61020273 in per_module::run_ctors () from /usr/bin/cygwin1.dll
#4  0x00000000 in ?? ()

(gdb) list
1       /gnu/gcc/releases/packaging/4.3.4-3/gcc4-4.3.4-3/src/gcc-4.3.4/libs=
tdc++-v3/libsupc++/si_class_type_info.cc: No such file or directory.
        in /gnu/gcc/releases/packaging/4.3.4-3/gcc4-4.3.4-3/src/gcc-4.3.4/l=
ibstdc++-v3/libsupc++/si_class_type_info.cc


Unfortunately my debug capability with gdb are very limited
so I don't understand if the software has an issue or
if the problem could be located in the cygwin1.dll.

Any suggestion how to proceed ?

Thanks
Marco






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