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-rw-r--r--winsup/cygwin/exceptions.cc4
1 files changed, 3 insertions, 1 deletions
diff --git a/winsup/cygwin/exceptions.cc b/winsup/cygwin/exceptions.cc
index cdeb112..a06774d 100644
--- a/winsup/cygwin/exceptions.cc
+++ b/winsup/cygwin/exceptions.cc
@@ -158,7 +158,9 @@ open_stackdumpfile ()
{
const char *p;
/* write to progname.stackdump if possible */
- if ((p = strrchr (myself->progname, '\\')))
+ if (!myself->progname[0])
+ p = "unknown";
+ else if ((p = strrchr (myself->progname, '\\')))
p++;
else
p = myself->progname;