PR_GET_TSC - get wether the timestamp counter can be read

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

EFAULTarg2 is an invalid address.

Linux 2.6.26 (x86).

Standard C library (libc, -lc)

PR_GET_TSC - get wether the timestamp counter can be read

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

prctl(2), PR_SET_TSC(2const) Linux man-pages 6.9.1 2024-06-02 PR_GET_TSC(2const)

Linux. x86 only.

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