NAME¶

PR_GET_TSC - get wether the timestamp counter can be read

LIBRARY¶

Standard C library (libc, -lc)

SYNOPSIS¶

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

int prctl(PR_GET_TSC, int *flag);

DESCRIPTION¶

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

arg2 is an invalid address.

STANDARDS¶

Linux. x86 only.

HISTORY¶

Linux 2.6.26 (x86).

SEE ALSO¶

prctl(2), PR_SET_TSC(2const)