[PATCH] symtab.c -- Fix off by one allocation bug

[David Taylor <dtaylor@emc.com>]

This fixes a problem found by valgrind.  Applying this patch caused no
regressions on GNU/Linux x86-64 and satisfied valgrind.

	* gdb/symtab.c (symbol_set_names): Fix off by one error in
	allocation.
---
 gdb/ChangeLog | 4 ++++
 gdb/symtab.c  | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 9c09269..aaeeb6e 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,7 @@
+2016-06-09  David Taylor  <dtaylor@emc.com>
+
+	* symtab.c (symbol_set_names): Fix off by one error in allocation.
+
 2016-06-07  Simon Marchi  <simon.marchi@ericsson.com>
 
 	* mi/mi-interp.c (mi_record_changed): Add missing braces.
diff --git a/gdb/symtab.c b/gdb/symtab.c
index f7a207a..12e1cf5 100644
--- a/gdb/symtab.c
+++ b/gdb/symtab.c
@@ -1010,7 +1010,7 @@ symbol_set_names (struct general_symbol_info *gsymbol,
 	    = ((struct demangled_name_entry *)
 	       obstack_alloc (&per_bfd->storage_obstack,
 			      offsetof (struct demangled_name_entry, demangled)
-			      + lookup_len + demangled_len + 2));
+			      + lookup_len + demangled_len + 3));
 	  mangled_ptr = &((*slot)->demangled[demangled_len + 1]);
 	  strcpy (mangled_ptr, lookup_name);
 	  (*slot)->mangled = mangled_ptr;
-- 
1.9.1