FUNCTION::IS\_SIG\_BLO(3stap) Signal Tapset FUNCTION::IS\_SIG\_BLO(3stap)

# [NAME](#NAME)

function::is\_sig\_blocked - Returns 1 if the signal is currently blocked, or 0 if it is not

# [SYNOPSIS](#SYNOPSIS)

```


    is_sig_blocked:long(task:long,sig:long)
```

# [ARGUMENTS](#ARGUMENTS)

*task*

address of the task\_struct to query.

*sig*

the signal number to test.

# [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: function::is_sig_blocked(3stap) from systemtap 5.6-r0 (Chainguard OS)
Source: https://sourceware.org/git/systemtap.git