Olivier Delannoy writes: > Hello, > > I am using linux and I would like to understand the role of -fPIC. I > understand that it generate code where function address can be > calculated indirectly after relocation of the .so in applications > using it. My questions are : > > - Is it required to compile with -fPIC every object file packed in a > dynamic shared object ? Yes. (Well, kinda: there is a platform that allows relocation to be performed on shared objects after loading, but it's inefficient and is purely a backawards compatibility hack.) > - Is is possible to integrate a static library in a .so safely > (assuming the static library is not compiled using -fPIC) No. > - Is the answer to the previous question the same if the library is > used only within the boundary of the .so (hidden to the rest of the > application) ? Yes. Andrew.
