sh: Split out extable.c _32 and _64 variants.

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

1 files changed, 0 insertions, 80 deletions

diff --git a/arch/sh64/mm/extable.c b/arch/sh64/mm/extable.c
deleted file mode 100644
index a2e6e0563772..000000000000
--- a/arch/sh64/mm/extable.c
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * 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
- * for more details.
- *
- * arch/sh64/mm/extable.c
- *
- * Copyright (C) 2003 Richard Curnow
- * Copyright (C) 2003, 2004  Paul Mundt
- *
- * Cloned from the 2.5 SH version..
- */
-#include <linux/rwsem.h>
-#include <linux/module.h>
-#include <asm/uaccess.h>
-
-extern unsigned long copy_user_memcpy, copy_user_memcpy_end;
-extern void __copy_user_fixup(void);
-
-static const struct exception_table_entry __copy_user_fixup_ex = {
-        .fixup = (unsigned long)&__copy_user_fixup,
-};
-
-/* Some functions that may trap due to a bad user-mode address have too many loads
-   and stores in them to make it at all practical to label each one and put them all in
-   the main exception table.
-
-   In particular, the fast memcpy routine is like this.  It's fix-up is just to fall back
-   to a slow byte-at-a-time copy, which is handled the conventional way.  So it's functionally
-   OK to just handle any trap occurring in the fast memcpy with that fixup. */
-static const struct exception_table_entry *check_exception_ranges(unsigned long addr)
-{
-        if ((addr >= (unsigned long)&copy_user_memcpy) &&
-            (addr <= (unsigned long)&copy_user_memcpy_end))
-                return &__copy_user_fixup_ex;
-
-        return NULL;
-}
-
-/* Simple binary search */
-const struct exception_table_entry *
-search_extable(const struct exception_table_entry *first,
-                 const struct exception_table_entry *last,
-                 unsigned long value)
-{
-        const struct exception_table_entry *mid;
-
-        mid = check_exception_ranges(value);
-        if (mid)
-                return mid;
-
-        while (first <= last) {
-                long diff;
-
-                mid = (last - first) / 2 + first;
-                diff = mid->insn - value;
-                if (diff == 0)
-                        return mid;
-                else if (diff < 0)
-                        first = mid+1;
-                else
-                        last = mid-1;
-        }
-
-        return NULL;
-}
-
-int fixup_exception(struct pt_regs *regs)
-{
-        const struct exception_table_entry *fixup;
-
-        fixup = search_exception_tables(regs->pc);
-        if (fixup) {
-                regs->pc = fixup->fixup;
-                return 1;
-        }
-
-        return 0;
-}
-