| Linux man pages for sigreturn (3). |
....mechanism allows for an application to specify the set of signals that are blocked during the execution of each signal handler. The signals mechanism also provides a means for simultaneously restoring application registers and signal noti cation behavior with the (implicit) sigreturn( system call [2]. Since SEND aims to eliminate this secondary kernel entry at the end of a preemption, a specialized mechanism must be developed to allow applications to safely enable and disable event noti cation inside the event handler function. The mechanism developed for SEND is to allow applications to ....
Linux man pages for sigreturn (3).
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