On 11/14/13 06:59, Vince Weaver wrote: > > Here's an updated version of the patch that expands the "mmap" definition > as well as that of "mmap_data". Also some manpage related formatting > improvements from the original patch. > > I'm not really sure how signed-off-by's and other tags work when modifying > a patch like this so sorry if I mixed that up. > > Signed-off-by: Vince Weaver <vincent.weaver@xxxxxxxxx> > Cc: David Ahern <dsahern@xxxxxxxxx> > Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> > Link: https://lkml.org/lkml/2013/11/11/505 Thanks Vince (and David). I've applied, and added an "Acked-by:" from David, since he said he was fine with your revision. Cheers, Michael > --- > > diff --git a/man2/perf_event_open.2 b/man2/perf_event_open.2 > index 1889689..5ba1a42 100644 > --- a/man2/perf_event_open.2 > +++ b/man2/perf_event_open.2 > @@ -805,7 +805,16 @@ If set, don't count when the CPU is idle. > .IR "mmap" > The > .I mmap > -bit enables recording of exec mmap events. > +bit enables generation of > +.I PERF_RECORD_MMAP > +samples for every > +.BR mmap (2) > +call that has > +.I PROT_EXEC > +set. > +This allows tools to notice new executable code being mapped into > +a program (dynamic shared libraries for example) > +so that addresses can be mapped back to the original code. > .TP > .IR "comm" > The > @@ -884,8 +893,14 @@ See also > .IR "mmap_data" " (Since Linux 2.6.36)" > The counterpart of the > .I mmap > -field, but enables including data mmap events > -in the ring-buffer. > +field. > +This enables generation of > +.I PERF_RECORD_MMAP > +samples for > +.BR mmap (2) > +calls that do not have > +.I PROT_EXEC > +set (for example data and SysV shared memory). > .TP > .IR "sample_id_all" " (Since Linux 2.6.38)" > If set, then TID, TIME, ID, STREAM_ID, and CPU can > -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
