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>
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Original patch from gentoo: gentoo/src/patchsets/gcc/4.3.1/gentoo/53_all_gcc4-superh-default-multilib.patch
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The gcc-3.x toolchains would contain all the targets by default.  With gcc-4,
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you have to actually list out the multilibs you want or you will end up with
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just one when using targets like 'sh4-linux-gnu'.
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The resulting toolchain can't even build a kernel as the kernel needs to build
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with the nofpu flag to be sure that no fpu ops are generated.
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Here we restore the gcc-3.x behavior; the additional overhead of building all
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of these multilibs by default is negligible.
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http://bugs.gentoo.org/140205
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diff -durN gcc-4.3.1.orig/gcc/config.gcc gcc-4.3.1/gcc/config.gcc
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--- gcc-4.3.1.orig/gcc/config.gcc	2008-05-21 10:54:15.000000000 +0200
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+++ gcc-4.3.1/gcc/config.gcc	2008-06-10 14:58:06.000000000 +0200
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@@ -2278,7 +2278,7 @@
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 	if test x${sh_multilibs} = x ; then
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 		case ${target} in
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 		sh64-superh-linux* | \
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-		sh[1234]*)	sh_multilibs=${sh_cpu_target} ;;
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+		sh[1234]*)	sh_multilibs=`cd ${srcdir}/config/sh ; echo t-mlib-sh[1-4]* | sed 's:t-mlib-sh:,m:g;s: ::g'` ;;
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 		sh64* | sh5*)	sh_multilibs=m5-32media,m5-32media-nofpu,m5-compact,m5-compact-nofpu,m5-64media,m5-64media-nofpu ;;
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 		sh-superh-*)	sh_multilibs=m4,m4-single,m4-single-only,m4-nofpu ;;
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 		sh*-*-linux*)	sh_multilibs=m1,m3e,m4 ;;