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patches/gcc/4.3.2/180-superh-default-multilib.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Jul 17 17:54:21 2011 +0200 (2011-07-17)
changeset 2888 dd71df95903a
parent 747 d3e603e7c17c
permissions -rw-r--r--
cc/gcc: pass the companion libs prefix to cc_core

In case of canadian-cross, the companion libraries are not the same for
the core cc (they run on 'build') as they are for the final cc (they run
on 'host').

Prepare for this differentiation (coming later), while retaining the
current behavior (to use the same compblibs).

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> 
     1 Original patch from gentoo: gentoo/src/patchsets/gcc/4.3.1/gentoo/53_all_gcc4-superh-default-multilib.patch

     2 The gcc-3.x toolchains would contain all the targets by default.  With gcc-4,

     3 you have to actually list out the multilibs you want or you will end up with

     4 just one when using targets like 'sh4-linux-gnu'.

     5 

     6 The resulting toolchain can't even build a kernel as the kernel needs to build

     7 with the nofpu flag to be sure that no fpu ops are generated.

     8 

     9 Here we restore the gcc-3.x behavior; the additional overhead of building all

    10 of these multilibs by default is negligible.

    11 

    12 http://bugs.gentoo.org/140205

    13 

    14 diff -durN gcc-4.3.1.orig/gcc/config.gcc gcc-4.3.1/gcc/config.gcc

    15 --- gcc-4.3.1.orig/gcc/config.gcc	2008-05-21 10:54:15.000000000 +0200

    16 +++ gcc-4.3.1/gcc/config.gcc	2008-06-10 14:58:06.000000000 +0200

    17 @@ -2278,7 +2278,7 @@

    18  	if test x${sh_multilibs} = x ; then

    19  		case ${target} in

    20  		sh64-superh-linux* | \

    21 -		sh[1234]*)	sh_multilibs=${sh_cpu_target} ;;

    22 +		sh[1234]*)	sh_multilibs=`cd ${srcdir}/config/sh ; echo t-mlib-sh[1-4]* | sed 's:t-mlib-sh:,m:g;s: ::g'` ;;

    23  		sh64* | sh5*)	sh_multilibs=m5-32media,m5-32media-nofpu,m5-compact,m5-compact-nofpu,m5-64media,m5-64media-nofpu ;;

    24  		sh-superh-*)	sh_multilibs=m4,m4-single,m4-single-only,m4-nofpu ;;

    25  		sh*-*-linux*)	sh_multilibs=m1,m3e,m4 ;;
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