On May 13, 2005, at 5:33 PM, Paul Koning wrote:
I ran into link errors complaining about references to hidden symbol _Unwind_GetIP from a DSO.
It turns out unwind-dw2.c is compiled with -fvisibility=hidden for the static library case (but not for the shared library case).
In my link, I was using the libgcc.a (for that particular platform I don't use libgcc.so). So the linker complained.
In that case, C++ exceptions for your target will never work correctly.
Anyways, -fvisibility=hidden is needed for libgcc.a (This was done a different way in the past, by editing the assembly file) because otherwise, you can have the same symbol exported from two different shared libraries which is bad.
-- Pinski
