Le 25/07/2016 23:35, fsmithred a écrit :
Either way, it
looks like libsystemd is passively providing code for something else to
use.
Calling a function does not mean that this function passively provides code to the caller. What happens is (simplified) the program counter (the address from which instructions are fetched) jumps to the called function, and, when the function has finished execution (encountering the return instruction, returns to the caller, just one instruction after the initial jump.

    Didier

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