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[CT-NG:patch 19/19] The m68k processor does not like unaligned access in memcpy

From: Remy Bohmer <linux at bohmer dot net>
To: "Yann E. MORIN" <yann dot morin dot 1998 at anciens dot enib dot fr>
Cc: "Bart vdr. Meulen" <bartvdrmeulen at gmail dot com>, crossgcc at sourceware dot org, Remy Bohmer <linux at bohmer dot net>
Date: Fri, 09 Apr 2010 21:04:38 +0200
Subject: [CT-NG:patch 19/19] The m68k processor does not like unaligned access in memcpy
References: <20100409190419.325379428@bohmer.net>>

Disable unaligned access at least for mcpu32, m68010 and m68020.
These processors certainly do not like unaligned accesses.

Signed-off-by: Remy Bohmer <linux@bohmer.net>
---
 patches/newlib/1.18.0/100-fix-unaligned-access-memcpy-m68k.patch |   23 ++++++++++
 1 file changed, 23 insertions(+)

Index: crosstool-ng/patches/newlib/1.18.0/100-fix-unaligned-access-memcpy-m68k.patch
===================================================================
--- /dev/null
+++ crosstool-ng/patches/newlib/1.18.0/100-fix-unaligned-access-memcpy-m68k.patch
@@ -0,0 +1,23 @@
+The m68k mcpu processor does not like unaligned access
+
+Disable at least mcpu32, m68010 and m68020. These processors certainly
+do not like unaligned accesses.
+
+Signed-off-by: Remy Bohmer <linux@bohmer.net>
+---
+ newlib/libc/machine/m68k/memcpy.S |    2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+Index: newlib-1.18.0/newlib/libc/machine/m68k/memcpy.S
+===================================================================
+--- newlib-1.18.0.orig/newlib/libc/machine/m68k/memcpy.S
++++ newlib-1.18.0/newlib/libc/machine/m68k/memcpy.S
+@@ -15,7 +15,7 @@
+ 
+ #include "m68kasm.h"
+ 
+-#if defined (__mcoldfire__) || defined (__mcpu32__) || defined (__mc68010__) || defined (__mc68020__) || defined (__mc68030__) || defined (__mc68040__) || defined (__mc68060__)
++#if defined (__mcoldfire__) || defined (__mc68030__) || defined (__mc68040__) || defined (__mc68060__)
+ # define MISALIGNED_OK 1
+ #else
+ # define MISALIGNED_OK 0

-- 


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- Re: [CT-NG:patch 19/19] The m68k processor does not like unaligned access in memcpy
  - From: Yann E. MORIN

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