From ce2f83eaecb53d259485a6647b665bf4f7c1803e Mon Sep 17 00:00:00 2001
From: Thomas Preud'homme <thomas.preudhomme@celest.fr>
Date: Thu, 6 May 2010 20:15:28 +0200
Subject: [PATCH] Don't fail with shared object without name

pstack was failing with shared objects loaded by the dynamic linker which have
no name. This tiny patch makes pstack ignore those objects.
---
 pstack.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pstack.c b/pstack.c
index 9262d42..24dbea3 100644
--- a/pstack.c
+++ b/pstack.c
@@ -388,6 +388,8 @@ static Symbols loadSyms(const char *fname)
   int fd;
   Symbols syms;
 
+  if (*fname == '\0')
+    return (Symbols) 0;
   syms = newSyms(fname);
   if ((fd = open(fname, O_RDONLY)) < 0)
   {