pr_get_tsc(2const)

get wether the timestamp counter can be read

distropkg manpages-dev@6.9.1-1dataset 2026-04-01T06:19:02Z+debian+ec4110e+mandoc:1.14.6-4

Synopsis

#include <linux/prctl.h>
  /* Definition of 
PR_*
 constants */
#include <sys/prctl.h>
int prctl(PR_GET_TSC, int *
flag
);

—

Options · 1

arg2 is an invalid address.

NAME

PR_GET_TSC - get wether the timestamp counter can be read

Standard C library (libc, -lc)

bash

#include <linux/prctl.h>\n  /* Definition of \nPR_*\n constants */
\n#include <sys/prctl.h>

bash

int prctl(PR_GET_TSC, int *\nflag\n);

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

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

Linux. x86 only.

Linux 2.6.26 (x86).