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pmcstat.8: fix -a flag description; improve -m flag to match

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The -a flag reads a file saved by -O, not -o.

The -m flag requires the -R flag.  Copy that paragraph from -a.

Reviewed by:	adrian
Approved by:	kib (mentor)
MFC after:	1 week
Sponsored by:	Dell Inc
This commit is contained in:
Eric van Gyzen 2015-03-28 21:28:22 +00:00
parent e858b027db
commit 10813ab380
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=280793
2 changed files with 9 additions and 3 deletions
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10
usr.sbin/pmcstat/pmcstat.8
View File

@ -25,7 +25,7 @@
.\"
.\" $FreeBSD$
.\"
.Dd Oct 27, 2014
.Dd March 27, 2015
.Dt PMCSTAT 8
.Os
.Sh NAME
@ -236,7 +236,7 @@ This option requires the
.Fl R
option to read in samples that were previously collected and
saved with the
.Fl o
.Fl O
option.
.It Fl c Ar cpu-spec
Set the cpus for subsequent system mode PMCs specified on the
@ -301,6 +301,12 @@ is a
this information is sent to the output file specified by the
.Fl o
option.
This option requires the
.Fl R
option to read in samples that were previously collected and
saved with the
.Fl O
option.
.It Fl n Ar rate
Set the default sampling rate for subsequent sampling mode
PMCs specified on the command line.

2
usr.sbin/pmcstat/pmcstat.c
View File

@ -940,7 +940,7 @@ main(int argc, char **argv)
errx(EX_USAGE, "ERROR: options -T and -l are mutually "
"exclusive.");
/* -m option is allowed with -R only. */
/* -a and -m require -R */
if (args.pa_flags & FLAG_DO_ANNOTATE && args.pa_inputpath == NULL)
errx(EX_USAGE, "ERROR: option %s requires an input file",
args.pa_plugin == PMCSTAT_PL_ANNOTATE ? "-m" : "-a");