Open System Services System Calls Reference Manual (G06.29+, H06.08+, J06.03+)

System Functions (s and S) sigaltstack(2)
The following are HP extensions to the IEEE Std 1003.1-2004, POSIX System Application Pro-
gram Interface specification:
• HP has defined several new signals, including SIGABEND. See the signal(4) reference
page for a complete list.
• If the SIGSTK signal is delivered while the alternate signal stack is active, the default
action of terminating the process occurs.
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