Solaris™ Internals: Core Kernel Components

8.5. Process Termination

The termination of a process results from one of three possible events. First, the process explicitly calling exit(2) or _exit(2) causes all the threads in a multithreaded process to exit. (The threads libraries include thr_exit(3T) and pthread_exit(3T) interfaces for programmatically terminating an individual user thread without causing the entire process to exit.) Second, the process simply completes execution and falls through to the end of the main() function—which is essentially an implicit exit. Third, a signal is delivered, and the disposition for the signal is to terminate the process. This disposition is the default for some signals (see “Signals” ). There is actually one other possibility: a process can explicitly ...