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From: Mark Johnston <markj@FreeBSD.org>
Date: Mon, 22 May 2017 23:21:24 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r318687 - head/lib/libproc
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Author: markj
Date: Mon May 22 23:21:24 2017
New Revision: 318687
URL: https://svnweb.freebsd.org/changeset/base/318687

Log:
  Ensure that the mappings table is populated in proc_objname().
  
  MFC after:	1 week
  Sponsored by:	Dell EMC Isilon

Modified:
  head/lib/libproc/proc_sym.c

Modified: head/lib/libproc/proc_sym.c
==============================================================================
--- head/lib/libproc/proc_sym.c	Mon May 22 23:17:55 2017	(r318686)
+++ head/lib/libproc/proc_sym.c	Mon May 22 23:21:24 2017	(r318687)
@@ -339,6 +339,9 @@ proc_objname(struct proc_handle *p, uint
 	prmap_t *map;
 	size_t i;
 
+	if (p->nmappings == 0)
+		if (proc_rdagent(p) == NULL)
+			return (NULL);
 	for (i = 0; i < p->nmappings; i++) {
 		map = &p->mappings[i].map;
 		if (addr >= map->pr_vaddr &&