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signal.7: Various fields in /proc/PID/status show signal-related information 

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
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Michael Kerrisk 2019-07-10 15:19:31 +02:00
parent 9b8887eb94
commit aa16684c95
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man7/signal.7
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@ -779,6 +779,29 @@ POSIX.1, except as noted.
.SH NOTES .SH NOTES
For a discussion of async-signal-safe functions, see For a discussion of async-signal-safe functions, see
.BR signal-safety (7). .BR signal-safety (7).
.PP
The
.I /proc/[pid]/task/[tid]/status
file contains various fields that show the signals
that a thread is blocking
.RI ( SigBlk ),
catching
.RI ( SigCgt ),
or ignoring
.RI ( SigIgn ).
(The set of signals that are caught or ignored will be the same
across all threads in a process.)
Other fields show the set of pending signals that are directed to the thread
.RI ( SigPnd )
as well as the set of pending signals that are directed
to the process as a whole
.RI ( ShdPnd ).
The corresponding fields in
.I /proc/[pid]/status
show the information for the main thread.
See
.BR proc (5)
for further details.
.SH SEE ALSO .SH SEE ALSO
.BR kill (1), .BR kill (1),
.BR clone (2), .BR clone (2),