Hi,
I'm trying to integrate libunwind into my code, but I'm running into a
very weird issue with GCC.
My platform is GCC 4.8.2, Ubuntu 14.04, x86_64, using libunwind from the
Ubuntu repositories (1.1-2.2ubuntu3.)
The setup I have is as follows: I have a shared library core.so, which
is linking dynamically against libunwind.so. I have another executable
test, which links against core.so. What happens now is that any
exception thrown from core.so leads to a segfault in the test
executable, with a callstack starting at __cxa_throw.
If I link libunwind.a statically into core.so, I get a similar error,
but in this case I can see _Unwind_Resume from core.so (i.e. from the
statically linked libunwind) on the callstack (and I get the complete
callstack.) Notice that I don't actually use any of the libunwind
functions, I merely link.
Interestingly, the exact same code works just fine when compiled using
Clang. What's going on here? How can I resolve this issue?
Cheers,
Anteru
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