fix uninitialized field in ada-lang.c (struct match_data)

Field found_sym in add_nonlocal_symbols's struct match_data is
used uninitialized.  Rather than adding the initialization of
this field (to zero), we set the entire structure to zero first,
and then set the fields that need to be initialized to non-zero
next.

gdb/ChangeLog:

        * ada-lang.c (add_nonlocal_symbols): Initialize data to
        all zeros.  Remove setting of data.arg_sym to NULL.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 951e9fd..1db3894 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2011-12-14  Joel Brobecker  <brobecker@adacore.com>
+
+       * ada-lang.c (add_nonlocal_symbols): Initialize data to
+       all zeros.  Remove setting of data.arg_sym to NULL.
+
 2011-12-14  Pedro Alves  <pedro@codesourcery.com>
 
        PR threads/10729

diff --git a/gdb/ada-lang.c b/gdb/ada-lang.c
index 33d7253..1befc43 100644 (file)
--- a/gdb/ada-lang.c
+++ b/gdb/ada-lang.c
@@ -4922,8 +4922,8 @@ add_nonlocal_symbols (struct obstack *obstackp, const char *name,
   struct objfile *objfile;
   struct match_data data;
 
+  memset (&data, 0, sizeof data);
   data.obstackp = obstackp;
-  data.arg_sym = NULL;
 
   ALL_OBJFILES (objfile)
     {