Messages in this thread | | | Date | Mon, 14 Apr 2008 13:59:40 +0200 (CEST) | From | Erik Bosman <> | Subject | Re: [PATCH 2/3] x86: Implement prctl PR_GET_TSC and PR_SET_TSC |
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On Mon, 14 Apr 2008, Michael Kerrisk wrote:
> Erik, > > Could you CC me please on kernel-userland API changes. > > Also it would be helpful if you could provide a short paragraph > (plaintext is fine) that describes the new commands and would be > suitable for inclusion in the prctl.2 ( > http://www.kernel.org/doc/man-pages/online/pages/man2/prctl.2.html ) > man page -- would that be possible? > > Cheers, > > Michael >
.TP .B PR_SET_TSC (Since Linux 2.6.??, only on x86) Set the state of the flag determining whether the timestamp counter can be read by the process. Pass \fBPR_TSC_ENABLE\fP to \fIarg2\fP to allow it to be read, or \fBPR_TSC_SIGSEGV\fP to generate a \fBSIGSEGV\fP when the process tries to read the timestamp counter. .TP .B PR_GET_TSC (Since Linux 2.6.??, only on x86) Get the state of the flag determining whether the timestamp counter can be read from \fIarg2\fP.
This is what I would say. I hope it's clear.
Erik
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