On 2017.08.31 at 17:31 +0800, kipade wrote: > Hi all, > If there is a way to avoiding assemblly unreferenced entry into .o target > file? > The issue is from such condition: > Dynamic library B is dependent on Dynamic library A: the source find b.c in > library B includes a header file from A, which named a.h, here, there was a > inlined function within a.h, however, b.c just include a.h and without any > code decleared within a.h. So, the target .o file of b.c would not generate > any code for the inline function, just leave an entry for that function. > > The problem is, when the b.c was packed as a shared dynamic library and > was used by the third executable client, gcc would complain it can't find > the reference of the inline function entry decleared in a.h, although which > would not be used by the library B. > > Finnaly, I have to remove the include instruction in b.c to avoiding such > linking error. But, I don't know how to resolve that issue if there is a c.c > which have to include a.h because it use parts of entries decleared in > a.h. (I can't modify any code of library A, because it's a foreign library) There is nothing gcc specific in you question so it is off-topic for this list. Just read Drepper's whitepaper: https://www.akkadia.org/drepper/dsohowto.pdf -- Markus
