PROBE::SIGNAL.PROC(3stap) Signal Tapset PROBE::SIGNAL.PROC(3stap)NAME
probe::signal.procmask - Examining or changing blocked signals
Indicates how to change the blocked signals; possible values are SIG_BLOCK=0 (for blocking signals), SIG_UNBLOCK=1 (for unblocking
signals), and SIG_SETMASK=2 for setting the signal mask.
Name of the probe point
The old address of the signal set (sigset_t)
The actual value to be set for sigset_t (correct?)
The address of the signal set (sigset_t) to be implemented
SystemTap Tapset Reference June 2014 PROBE::SIGNAL.PROC(3stap)
Check Out this Related Man Page
SIGPROCMASK(2) System Calls Manual SIGPROCMASK(2)NAME
sigprocmask - manipulate the signal mask
int sigprocmask(int how, const sigset_t *set, sigset_t *oset)
Sigprocmask() examines or manipulates the signal mask. This mask is the set of signals that are currently blocked. The how argument
determines the action that must be performed. In all cases the signal set referenced by oset, if not NULL, will be used to receive the old
signal mask. The set argument, if not NULL, will be used to set or modify the current signal mask.
How can be one of:
SIG_BLOCK Add the signals referenced by set to the mask.
SIG_UNBLOCK Remove the signals referenced by set from the mask.
SIG_SETMASK Set the signal mask to the set referenced by set.
The value of how is ignored if set is NULL.
SEE ALSO sigaction(2), sigpending(2), sigsuspend(2), sigset(3).
Returns 0 on success and -1 on error. The error code is EFAULT for a bad set or oset address, or EINVAL for a bad how argument.
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