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NAME | SYNOPSIS | VALUES | CONTEXT | DESCRIPTION | SEE ALSO | COLOPHON |
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PROBE::SIGNAL.SEND(3stap) Signal Tapset PROBE::SIGNAL.SEND(3stap)
probe::signal.send.return - Signal being sent to a process
completed (deprecated in SystemTap 2.1)
signal.send.return
name
The name of the function used to send out the signal
send2queue
Indicates whether the sent signal was sent to an existing
sigqueue
shared
Indicates whether the sent signal is shared by the thread
group.
retstr
The return value to either __group_send_sig_info,
specific_send_sig_info, send_sigqueue, or
posixtimer_send_sigqueue
The signal's sender. (correct?)
Possible __group_send_sig_info and specific_send_sig_info return
values are as follows;
0 -- The signal is successfully sent to a process, which means
that, (1) the signal was ignored by the receiving process, (2)
this is a non-RT signal and the system already has one queued, and
(3) the signal was successfully added to the sigqueue of the
receiving process.
-EAGAIN -- The sigqueue of the receiving process is overflowing,
the signal was RT, and the signal was sent by a user using
something other than kill.
Possible send_group_sigqueue, send_sigqueue, and
posixtimer_send_sigqueue return values are as follows;
0 -- The signal was either successfully added into the sigqueue of
the receiving process, or a SI_TIMER entry is already queued (in
which case, the overrun count will be simply incremented).
1 -- The signal was ignored by the receiving process.
-1 -- (send_sigqueue / posixtimer_send_sigqueue only) The task was
marked exiting, allowing * posix_timer_event to redirect it to the
group leader.
tapset::signal(3stap)
This page is part of the systemtap (a tracing and live-system
analysis tool) project. Information about the project can be
found at ⟨https://sourceware.org/systemtap/⟩. If you have a bug
report for this manual page, send it to systemtap@sourceware.org.
This page was obtained from the project's upstream Git repository
⟨git://sourceware.org/git/systemtap.git⟩ on 2026-05-24. (At that
time, the date of the most recent commit that was found in the
repository was 2026-05-24.) If you discover any rendering
problems in this HTML version of the page, or you believe there is
a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
man-pages@man7.org
SystemTap Tapset Reference May 2026 PROBE::SIGNAL.SEND(3stap)
Pages that refer to this page: tapset::signal(3stap)
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HTML rendering created 2026-05-24 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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