NAME¶

tapset::signal - systemtap signal tapset

DESCRIPTION¶

This family of probe points is used to probe signal activities.
Since there are so many signals sent to processes at any given
point, it is advisable to filter the information according to the
requirements. For example, filter only for a particular signal
(if sig==2) or for a particular process (if pid_name==stap).

signal.send

Signal being sent to a process

See probe::signal.send(3stap)
for details.

signal.send.return

Signal being sent to a process completed (deprecated in SystemTap 2.1)

See probe::signal.send.return(3stap)
for details.

signal.checkperm

Check being performed on a sent signal

See probe::signal.checkperm(3stap)
for details.

signal.checkperm.return

Check performed on a sent signal completed

See probe::signal.checkperm.return(3stap)
for details.

signal.wakeup

Sleeping process being wakened for signal

See probe::signal.wakeup(3stap)
for details.

signal.check_ignored

Checking to see signal is ignored

See probe::signal.check_ignored(3stap)
for details.

signal.check_ignored.return

Check to see signal is ignored completed

See probe::signal.check_ignored.return(3stap)
for details.

signal.force_segv

Forcing send of SIGSEGV

See probe::signal.force_segv(3stap)
for details.

signal.force_segv.return

Forcing send of SIGSEGV complete

See probe::signal.force_segv.return(3stap)
for details.

signal.syskill

Sending kill signal to a process

See probe::signal.syskill(3stap)
for details.

signal.syskill.return

Sending kill signal completed

See probe::signal.syskill.return(3stap)
for details.

signal.sys_tkill

Sending a kill signal to a thread

See probe::signal.sys_tkill(3stap)
for details.

signal.systkill.return

Sending kill signal to a thread completed

See probe::signal.systkill.return(3stap)
for details.

signal.sys_tgkill

Sending kill signal to a thread group

See probe::signal.sys_tgkill(3stap)
for details.

signal.sys_tgkill.return

Sending kill signal to a thread group completed

See probe::signal.sys_tgkill.return(3stap)
for details.

signal.send_sig_queue

Queuing a signal to a process

See probe::signal.send_sig_queue(3stap)
for details.

signal.send_sig_queue.return

Queuing a signal to a process completed

See probe::signal.send_sig_queue.return(3stap)
for details.

signal.pending

Examining pending signal

See probe::signal.pending(3stap)
for details.

signal.pending.return

Examination of pending signal completed

See probe::signal.pending.return(3stap)
for details.

signal.handle

Signal handler being invoked

See probe::signal.handle(3stap)
for details.

signal.handle.return

Signal handler invocation completed

See probe::signal.handle.return(3stap)
for details.

signal.do_action

Examining or changing a signal action

See probe::signal.do_action(3stap)
for details.

signal.do_action.return

Examining or changing a signal action completed

See probe::signal.do_action.return(3stap)
for details.

signal.procmask

Examining or changing blocked signals

See probe::signal.procmask(3stap)
for details.

signal.procmask.return

Examining or changing blocked signals completed

See probe::signal.procmask.return(3stap)
for details.

signal.flush

Flushing all pending signals for a task

See probe::signal.flush(3stap)
for details.

get_sa_flags

Returns the numeric value of sa_flags

See function::get_sa_flags(3stap)
for details.

get_sa_handler

Returns the numeric value of sa_handler

See function::get_sa_handler(3stap)
for details.

sigset_mask_str

Returns the string representation of a sigset

See function::sigset_mask_str(3stap)
for details.

is_sig_blocked

Returns 1 if the signal is currently blocked, or 0 if it is not

See function::is_sig_blocked(3stap)
for details.

sa_flags_str

Returns the string representation of sa_flags

See function::sa_flags_str(3stap)
for details.

sa_handler

Returns the string representation of an sa_handler

See function::sa_handler(3stap)
for details.

signal_str

Returns the string representation of a signal number

See function::signal_str(3stap)
for details.

SEE ALSO¶

function::get_sa_flags(3stap), function::get_sa_handler(3stap), function::sigset_mask_str(3stap), function::is_sig_blocked(3stap), function::sa_flags_str(3stap), function::sa_handler(3stap), function::signal_str(3stap), probe::signal.send(3stap), probe::signal.send.return(3stap), probe::signal.checkperm(3stap), probe::signal.checkperm.return(3stap), probe::signal.wakeup(3stap), probe::signal.check_ignored(3stap), probe::signal.check_ignored.return(3stap), probe::signal.force_segv(3stap), probe::signal.force_segv.return(3stap), probe::signal.syskill(3stap), probe::signal.syskill.return(3stap), probe::signal.sys_tkill(3stap), probe::signal.systkill.return(3stap), probe::signal.sys_tgkill(3stap), probe::signal.sys_tgkill.return(3stap), probe::signal.send_sig_queue(3stap), probe::signal.send_sig_queue.return(3stap), probe::signal.pending(3stap), probe::signal.pending.return(3stap), probe::signal.handle(3stap), probe::signal.handle.return(3stap), probe::signal.do_action(3stap), probe::signal.do_action.return(3stap), probe::signal.procmask(3stap), probe::signal.procmask.return(3stap), probe::signal.flush(3stap), stap(1), stapprobes(3stap)