patches/newlib/1.19.0/100-fix-unaligned-access-memcpy-m68k.patch
author "Yann E. MORIN" <yann.morin.1998@free.fr>
Wed Aug 01 19:02:06 2012 +0200 (2012-08-01)
changeset 3023 c71635732a59
parent 1902 faade25219ed
permissions -rw-r--r--
cc/gcc: always build core pass-1

Up until now, all conditions requiring a core pass-1 was when the
threading implementation used was NPTL. So we only built the core
pass-1 when NPTL was used.

Now, things have changed (what? when? Dunno...), and some bare-metal
canadian toolchains fail to build if a core pass-1 is not present.

OTOH, a core pass-1, although not needed for non-NPTL builds, does
no harm at all if it is present.

So, unconditionally build a core pass-1 (but still pass conditional
options to the core backend).

Reported-by: Per Arnold Blaasmo <Per-Arnold.Blaasmo@atmel.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
     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 ---
    10  newlib/libc/machine/m68k/memcpy.S |    2 +-
    11  1 file changed, 1 insertion(+), 1 deletion(-)
    12 
    13 Index: newlib-1.19.0/newlib/libc/machine/m68k/memcpy.S
    14 ===================================================================
    15 --- newlib-1.19.0.orig/newlib/libc/machine/m68k/memcpy.S
    16 +++ newlib-1.19.0/newlib/libc/machine/m68k/memcpy.S
    17 @@ -15,7 +15,7 @@
    18  
    19  #include "m68kasm.h"
    20  
    21 -#if defined (__mcoldfire__) || defined (__mc68010__) || defined (__mc68020__) || defined (__mc68030__) || defined (__mc68040__) || defined (__mc68060__)
    22 +#if defined (__mcoldfire__) || defined (__mc68030__) || defined (__mc68040__) || defined (__mc68060__)
    23  # define MISALIGNED_OK 1
    24  #else
    25  # define MISALIGNED_OK 0