---
name: "probe::signal.procmask"
section: "3stap"
platform: "linux"
package: "systemtap-doc"
version: "5.1-5"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/probe::signal.procmask"
---

# probe::signal.procmask(3stap)

Examining or changing blocked signals

## NAME

probe::signal.procmask - Examining or changing blocked signals

## SYNOPSIS

```
signal.procmask
```

## VALUES

*how*

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.

*sigset*

The actual value to be set for sigset\_t (correct?)

*oldsigset\_addr*

The old address of the signal set (sigset\_t)

*name*

Name of the probe point

*sigset\_addr*

The address of the signal set (sigset\_t) to be implemented

## SEE ALSO0

[*tapset::signal*(3stap)](/tapset::signal/3stap.md)