PR_GET_TSC(2const)

PR_GET_TSC2const

Get wether the timestamp counter can be read

Usage

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

int prctl(PR_GET_TSC, int *flag);

Library

Standard C library (libc, -lc)

Overview

Return the state of the flag determining whether the timestamp counter can be read, in the location pointed to by flag.

Return value

On success, 0 is returned. On error, -1 is returned, and errno is set to indicate the error.

Errors

EFAULT

flag is an invalid address.

Releases

2 releases since Debian 13 (Trixie); the text changed 1 time.

  1. 13
  2. Arch

Standards

Linux. x86 only.

History

Linux 2.6.26 (x86).

From man-pages 6.19-1 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.