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patches/gcc/4.3.1/180-superh-default-multilib.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Jul 17 17:56:22 2011 +0200 (2011-07-17)
changeset 2889 f3b2199620f1
parent 746 b150d6f590fc
permissions -rw-r--r--
cc/gcc: pass the install prefix to the core passes

Currently, the discrimination on the core compilers prefixes depends on
the type of core compiler to build.

This is not correct, and the caller of the core backend should specify
the prefix.

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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