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# Copyright 1999-2014 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sys-devel/kgcc64/kgcc64-3.4.6.ebuild,v 1.12 2014/09/17 08:20:33 jer Exp $
EAPI=4
case ${CHOST} in
hppa*) CTARGET=hppa64-${CHOST#*-};;
mips*) CTARGET=${CHOST/mips/mips64};;
powerpc*) CTARGET=${CHOST/powerpc/powerpc64};;
s390*) CTARGET=${CHOST/s390/s390x};;
sparc*) CTARGET=${CHOST/sparc/sparc64};;
i?86*) CTARGET=x86_64-${CHOST#*-};;
esac
export CTARGET
TOOLCHAIN_ALLOWED_LANGS="c"
GCC_TARGET_NO_MULTILIB=true
PATCH_VER="1.2"
GCC_FILESDIR=${FILESDIR/${PN}/gcc}
inherit eutils toolchain
DESCRIPTION="64bit kernel compiler"
KEYWORDS="-* ~hppa ~mips ~ppc ~s390 sparc"
# unlike every other target, hppa has not unified the 32/64 bit
# ports in binutils yet
DEPEND="hppa? ( sys-devel/binutils-hppa64 )
!sys-devel/gcc-hppa64
!sys-devel/gcc-mips64
!sys-devel/gcc-powerpc64
!sys-devel/gcc-sparc64"
src_prepare() {
toolchain_src_prepare
epatch "${GCC_FILESDIR}"/3.4.4/gcc-3.4.4-cross-compile.patch
# Arch stuff
case $(tc-arch) in
mips)
# Patch forward-ported from a gcc-3.0.x patch that adds -march=r10000 and
# -mtune=r10000 support to gcc (Allows the compiler to generate code to
# take advantage of R10k's second ALU, perform shifts, etc..
epatch "${GCC_FILESDIR}"/3.4.2/gcc-3.4.x-mips-add-march-r10k.patch
# This is a very special patch -- it allows us to build kernels on SGI IP28
# (Indigo2 Impact R10000) systems.
# Unless you're building an IP28 kernel, you really don't need care about what
# this patch does, because if you are, you are probably already aware of what
# it does.
# All that said, the abilities of this patch are disabled by default and need
# to be enabled by passing -mr10k-cache-barrier.
# The option also accepts a flag, which are highlighted below:
# -mr10k-cache-barrier=1 - Protect stores only (IP28)
# -mr10k-cache-barrier=2 - Protect stores and loads (IP32 R10K)
epatch "${GCC_FILESDIR}"/3.4.2/gcc-3.4.2-mips-ip28_cache_barriers-v4.patch
;;
esac
}
pkg_postinst() {
cd "${ROOT}"/usr/bin
local x
for x in gcc cpp ; do
cat <<-EOF >${CTARGET%%-*}-linux-${x}
#!/bin/sh
exec ${CTARGET}-${x} "\$@"
EOF
chmod a+rx ${CTARGET%%-*}-linux-${x}
done
}
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