Actors, Processes and Libraries

Actors or processes can be divided into two groups, according to the types of libraries they use.

• Relocatable actors and processes

  Upon actor start-up, the runtime linker loads the actor and performs the necessary relocations. A relocatable actor or process uses only static libraries.

• Dynamic actors/processes

  Upon actor start-up, the runtime linker loads the actor or process and performs the necessary relocations. It also loads and links the actor dependencies (the required dynamic libraries).

When you build a process or actor other than an embedded actor, you must specify one of the following macros in your Imakefile:

• Relocatable processes/actors:

  • UserActorTarget

  • SupActorTarget

  • CXXUserTarget

  • CXXSupTarget

• Dynamic processes/actors:

  • DynamicUserTarget

  • DynamicSupTarget

  • DynamicCXXUserTarget

  • DynamicCXXSupTarget

• Shared processes/actors:

  • SharedUserTarget

  • SharedSupTarget

  • SharedCXXUserTarget

  • SharedCXXSupTarget

Each of these rules implicitly calls the libc.a or libc.so libraries. Therefore, when creating the Imakefile for a process or actor, there is no need to think about the libc.a or libc.so libraries because this is taken care of when you select the Imakefile rule. The C++ library is automatically included by specifying CXX in the relevant Imakefile rule.