sh: Fix exception_handling_table alignment.

With the recent change ripping out interrupt_table, explicit
padding of the table was missing, causing bad things to happen
when manually inserting handlers in to the table. This problem
particularly showed up in relation to do_fpu_state_restore()
which was inserted quite deeply in to the table and ended up
scribbling over a slab object.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

2 files changed, 16 insertions, 2 deletions

diff --git a/arch/sh/kernel/cpu/sh3/ex.S b/arch/sh/kernel/cpu/sh3/ex.S
index 6be46f0686b7..ba3082d640b5 100644
--- a/arch/sh/kernel/cpu/sh3/ex.S
+++ b/arch/sh/kernel/cpu/sh3/ex.S
@@ -4,7 +4,7 @@
  *  The SH-3 exception vector table.
 
  *  Copyright (C) 1999, 2000, 2002  Niibe Yutaka
- *  Copyright (C) 2003  Paul Mundt
+ *  Copyright (C) 2003 - 2006  Paul Mundt
  *
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
@@ -49,3 +49,10 @@ ENTRY(nmi_slot)
 #endif
 ENTRY(user_break_point_trap)
         .long   break_point_trap        /* 1E0 */
+
+        /*
+         * Pad the remainder of the table out, exceptions residing in far
+         * away offsets can be manually inserted in to their appropriate
+         * location via set_exception_table_{evt,vec}().
+         */
+        .balign 4096,0,4096
diff --git a/arch/sh/kernel/cpu/sh4/ex.S b/arch/sh/kernel/cpu/sh4/ex.S
index 3f4cd043e900..ac8ab57413cc 100644
--- a/arch/sh/kernel/cpu/sh4/ex.S
+++ b/arch/sh/kernel/cpu/sh4/ex.S
@@ -4,7 +4,7 @@
  *  The SH-4 exception vector table.
 
  *  Copyright (C) 1999, 2000, 2002  Niibe Yutaka
- *  Copyright (C) 2003  Paul Mundt
+ *  Copyright (C) 2003 - 2006  Paul Mundt
  *
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
@@ -53,3 +53,10 @@ ENTRY(nmi_slot)
 #endif
 ENTRY(user_break_point_trap)
         .long   break_point_trap        /* 1E0 */
+
+        /*
+         * Pad the remainder of the table out, exceptions residing in far
+         * away offsets can be manually inserted in to their appropriate
+         * location via set_exception_table_{evt,vec}().
+         */
+        .balign 4096,0,4096