nios2: fix div64 issue for gcc4

This patch fixes the run-time error on div64 when built with
gcc4, which was reported by jhwu0625 on nios forum. It merges
math support from libgcc of gcc4. This patch is copied from
nios2-linux.

It works with both gcc3 and gcc4. The old mult.c, divmod.c and
math.h are removed.

Signed-off-by: Thomas Chou <[email protected]>
Signed-off-by: Scott McNutt <[email protected]>

1 files changed, 0 insertions, 56 deletions

diff --git a/arch/nios2/lib/mult.c b/arch/nios2/lib/mult.c
deleted file mode 100644
index ec8139ed5a6..00000000000
--- a/arch/nios2/lib/mult.c
+++ /dev/null
@@ -1,56 +0,0 @@
-/*
- * This file is part of GNU CC.
- *
- * GNU CC is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published
- * by the Free Software Foundation; either version 2, or (at your
- * option) any later version.
- *
- * GNU CC is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public
- * License along with GNU CC; see the file COPYING.  If not, write
- * to the Free Software Foundation, 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-
-#include <common.h>
-
-#if !defined(CONFIG_SYS_NIOS_MULT_HW) && !defined(CONFIG_SYS_NIOS_MULT_MSTEP)
-
-#include "math.h"
-
-USItype __mulsi3 (USItype a, USItype b)
-{
-	USItype c = 0;
-
-	while (a != 0) {
-		if (a & 1)
-			c += b;
-		a >>= 1;
-		b <<= 1;
-	}
-
-	return c;
-}
-
-
-UHItype __mulhi3 (UHItype a, UHItype b)
-{
-	UHItype c = 0;
-
-	while (a != 0) {
-		if (a & 1)
-			c += b;
-		a >>= 1;
-		b <<= 1;
-	}
-
-	return c;
-}
-
-#endif /*!defined(CONFIG_SYS_NIOS_MULT_HW) && !defined(CONFIG_SYS_NIOS_MULT_MSTEP) */