Why is the startup of an App on linux slower when using shared libs?

Question

On the embedded device I\'m working on, the startup time is an important issue. The whole application consists of several executables that use a set of libraries. Because space

Answer 1

This may help others with similar problems:

The reason why startup took so long in my case was, that the default setting of the GCC is to export all symbols inside of a library. A big improvement is to set a compiler setting "-fvisibility=hidden".

All symbols that the lib has to export have to be augmented with the statement

__attribute__ ((visibility("default")))

see gcc wiki
and the very fine article how to write shared libraries