On 11/26/2010 06:10 PM, Jeffrey Walton wrote: > I've given up trying to change visibility [1] in favor of adding a > thunk or wrapper for test purposes. The wrapper has extern visibility, > while the [real] function of interest is declared static in the > compilation unit. For the wrapper, dbg_my_function (public) simply > calls my_function (private). > > The test platform is Ubuntu 10.04 (x64) fully patched with GCC 4.4.3. > Note that there is no header file - only a C source file. And the > project uses automake and friends. > > The static archive is exporting the symbol, while the shared object is > not exporting the symbol. Below, a capitol "T" is a exported symbol in > the text section; and a lower "t" is a local symbol in the text > section. > > $ nm --defined ./lib/.libs/libmylibrary.a | grep my_function > 00000000000003f8 T dbg_my_function > 0000000000000000 t my_function > $ nm --defined ./lib/.libs/libmylibrary.so | grep my_function > 000000000003356b t dbg_my_function > 0000000000033120 t my_function It would help tremendously if you produced a simple test case that illustrates the problem. I don't know what you're doing wrong. Andrew.
