MPE/iX Shell and Utilities Reference Manual, Vol 2

Constant Default Description and Implementation Details
Action
Abnormal
termination
Hangup detected on a controlling terminal or death
of a controlling process. Required for POSIX.1 confor-
mance.
SIGHUP
Abnormal
termination
Detection of an invalid or illegal hardware instruc-
tion (not reset when caught). Required for POSIX.1
conformance.
SIGILL
Abnormal
termination
Interactive interrupt signal. Required for POSIX
.1
conformance.
SIGINT
Abnormal
termination
Termination signal (cannot be caught or ignored). If
an application attempts to change the default action
associated with SIGKILL, the attempt is ignored
without error. Required for POSIX.1 conformance.
SIGKILL
Abnormal
termination
Write on a pipe with no readers. Required for
POSIX.1
conformance.
SIGPIPE
Abnormal
termination
Interactive termination signal. Required for POSIX.1
conformance.
SIGQUIT
Abnormal
termination
Detection of an invalid or illegal memory reference.
The results are undefined if the system generates this
signal while the signal is either blocked, ignored, or
has a signal-handling function that returns normally.
Required for
POSIX conformance.
SIGSEGV
Abnormal
termination
Software termination signal (initiated by the
kill() function). Required for
POSIX.1 confor-
mance.
SIGTERM
Abnormal
termination
Reserved as application-defined signal #1. Required
for POSIX.1 conformance.
SIGUSR1
Abnormal
termination
Reserved as application-defined signal #2. Required
for POSIX.1 conformance.
SIGUSR2
Table A-5: Signals Required by POSIX.1 (continued)
MPE/iX Implementation Considerations A-15