svn commit: r322059 - head/usr.sbin/pmcstat

[Konstantin Belousov]

Author: kib
Date: Fri Aug  4 18:02:54 2017
New Revision: 322059
URL: https://svnweb.freebsd.org/changeset/base/322059

Log:
  Fix off by one in calculation of the number of buckets for the pc
  addresses.
  
  Reviewed by:	markj
  Sponsored by:	The FreeBSD Foundation
  MFC after:	1 week
  Differential revision:	https://reviews.freebsd.org/D11864

Modified:
  head/usr.sbin/pmcstat/pmcpl_gprof.c

Modified: head/usr.sbin/pmcstat/pmcpl_gprof.c
==============================================================================
--- head/usr.sbin/pmcstat/pmcpl_gprof.c	Fri Aug  4 17:41:49 2017	(r322058)
+++ head/usr.sbin/pmcstat/pmcpl_gprof.c	Fri Aug  4 18:02:54 2017	(r322059)
@@ -468,8 +468,8 @@ pmcpl_gmon_process(struct pmcstat_process *pp, struct 
 		    image, pmcid);
 		pgf->pgf_pmcid = pmcid;
 		assert(image->pi_end > image->pi_start);
-		pgf->pgf_nbuckets = (image->pi_end - image->pi_start) /
-		    FUNCTION_ALIGNMENT;	/* see <machine/profile.h> */
+		pgf->pgf_nbuckets = howmany(image->pi_end - image->pi_start,
+		    FUNCTION_ALIGNMENT);	/* see <machine/profile.h> */
 		pgf->pgf_ndatabytes = sizeof(struct gmonhdr) +
 		    pgf->pgf_nbuckets * hc_sz;
 		pgf->pgf_nsamples = 0;