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shared-librarieself
Kouros
Kouros

Reputation: 361

ELF shared libraries

I have a question about using libraries on Linux. Lets say I have a program called MYPROG and two libraries LIBABC.SO and LIBXYZ.SO. MYPROG loads the module LIBABC.SO with "dlopen RTLD_NOW". "dlopen" fails because I am using functions of LIBXYZ.SO and MYPROG was not linked with LIBXYZ.SO. Can I link a shared library to another shared library?

Upvotes: 2

Views: 349

Answers (1)

nos
nos

Reputation: 229058

Sure. If you run ldd on existing libraries (e.g. in /usr/lib/), you'll see many of them are linked to other libraries, and unless instructed otherwise, a shared library will at least be linked to the C runtime library.

When you're creating libABC.so, link it to libXYX.so, as an example using gcc:

gcc -shared -o libABC.so  -lXYZ obj1.o obj2.o

Upvotes: 3

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