PROBE::SIGNAL.DO\_A(3stap) Signal Tapset PROBE::SIGNAL.DO\_A(3stap)

# [NAME](#NAME)

probe::signal.do\_action - Examining or changing a signal action

# [SYNOPSIS](#SYNOPSIS)

```
probe signal.do_action {}
```

# [VALUES](#VALUES)

*sig*

The signal to be examined/changed

*oldsigact\_addr*

The address of the old sigaction struct associated with the signal

*sa\_mask*

The new mask of the signal

*sa\_handler*

The new handler of the signal

*sig\_name*

A string representation of the signal

*name*

Name of the probe point

*sigact\_addr*

The address of the new sigaction struct associated with the signal

# [SEE ALSO0](#SEE_ALSO0)

[*tapset::signal*(3stap)](/man/enterprise-packages/systemtap/tapset::signal.3stap)

September 2026 SystemTap Tapset Reference Ver

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Document: probe::signal.do_action(3stap) from systemtap 5.6-r1 (Chainguard OS)
Source: https://sourceware.org/git/systemtap.git