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patches/newlib/1.20.0/100-fix-unaligned-access-memcpy-m68k.patch
author Esben Haabendal <esben.haabendal@prevas.dk>
Wed Sep 26 09:09:23 2012 +0200 (2012-09-26)
changeset 3065 603ccf80c48b
permissions -rw-r--r--
kernel/linux: change m68k/no-mmu linux arch tuple to use -uclinux

GCC requires m68k arch tuples to be *-*-uclinux-* to support Linux on
no-mmu m68k (ColdFire) cpus.

Blackfin arch tuple must be *-*-linux-uclibc for FD_PIC_ELF toolchains,
so we cannot just switch to uclinux for no-mmu Linux toolchains.

Signed-off-by: "Esben Haabendal" <esben@haabendal.dk>
Message-Id: <876271s1ee.fsf@arh128.prevas.dk>
PatchWork-Id: 186976 
     1 The m68k mcpu processor does not like unaligned access

     2 

     3 Disable at least mcpu32, m68010 and m68020. These processors certainly

     4 do not like unaligned accesses.

     5 

     6 Signed-off-by: Remy Bohmer <linux@bohmer.net>

     7 [yann.morin.1998@anciens.enib.fr: update for 1.19.0 from 1.18.0]

     8 Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>

     9 [austinpmorton@gmail.com: update for 1.20.0 from 1.19.0]

    10 Signed-off-by: Austin Morton <austinpmorton@gmail.com>

    11 ---

    12  newlib/libc/machine/m68k/memcpy.S |    2 +-

    13  1 file changed, 1 insertion(+), 1 deletion(-)

    14 

    15 Index: newlib-1.20.0/newlib/libc/machine/m68k/memcpy.S

    16 ===================================================================

    17 --- newlib-1.20.0.orig/newlib/libc/machine/m68k/memcpy.S

    18 +++ newlib-1.20.0/newlib/libc/machine/m68k/memcpy.S

    19 @@ -15,7 +15,7 @@

    20  

    21  #include "m68kasm.h"

    22  

    23 -#if defined (__mcoldfire__) || defined (__mc68010__) || defined (__mc68020__) || defined (__mc68030__) || defined (__mc68040__) || defined (__mc68060__)

    24 +#if defined (__mcoldfire__) || defined (__mc68030__) || defined (__mc68040__) || defined (__mc68060__)

    25  # define MISALIGNED_OK 1

    26  #else

    27  # define MISALIGNED_OK 0
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