---
name: "PR_GET_SECCOMP"
section: "2const"
platform: "linux"
package: "man-pages"
version: "6.19-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/PR_GET_SECCOMP/2const"
---

# PR\_GET\_SECCOMP(2const)

get the secure computing mode

## NAME

PR\_GET\_SECCOMP - get the secure computing mode

## LIBRARY

Standard C library (*libc*, *-lc*)

## SYNOPSIS

```
#include <linux/prctl.h>  /* Definition of PR_* constants */
#include <sys/prctl.h>
```

**int prctl(PR\_GET\_SECCOMP);**

## DESCRIPTION

Return the secure computing mode of the calling thread.

If the caller is not in secure computing mode, this operation returns 0; if the caller is in strict secure computing mode, then the **prctl**() call will cause a **SIGKILL** signal to be sent to the process. If the caller is in filter mode, and this system call is allowed by the seccomp filters, it returns 2; otherwise, the process is killed with a **SIGKILL** signal.

This operation is available only if the kernel is configured with **CONFIG\_SECCOMP** enabled.

## RETURN VALUE

On success, this call returns the nonnegative value described above. On error, -1 is returned, and *errno* is set to indicate the error; or the process is killed.

## ERRORS

- **EINVAL**

  The kernel was not configured with **CONFIG\_SECCOMP**.

- **SIGKILL**

  The caller is in strict secure computing mode.

- **SIGKILL**

  The caller is in filter mode, and this system call is not allowed by the seccomp filters.

## FILES

- */proc/*pid*/status*

  Since Linux 3.8, the *Seccomp* field of this file provides a method of obtaining the same information, without the risk that the process is killed; see [**proc\_pid\_status**(5)](/proc_pid_status/5.md).

## STANDARDS

Linux.

## HISTORY

Linux 2.6.23.

## SEE ALSO

[**prctl**(2)](/prctl/2.md), [**PR\_SET\_SECCOMP**(2const)](/PR_SET_SECCOMP/2const.md), [**seccomp**(2)](/seccomp/2.md)