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|
#!/bin/bash
kernelsourcedir=
kerneldir=/lib/modules/$(uname -r)/build
cc=gcc
ld=ld
objcopy=objcopy
ar=ar
want_module=1
cross_prefix=
arch=`uname -m`
# don't use uname if kerneldir is set
no_uname=
# we only need depmod_version for kvm.ko install
depmod_version=
if [ -z "TMPDIR" ] ; then
TMPDIR=.
fi
usage() {
cat <<-EOF
Usage: $0 [options]
Options include:
--arch=ARCH architecture to compile for ($arch)
--cross-prefix=PREFIX prefix for cross compile
--kerneldir=DIR kernel build directory ($kerneldir)
--help this helpful text
EOF
exit 1
}
while [[ "$1" = -* ]]; do
opt="$1"; shift
arg=
hasarg=
if [[ "$opt" = *=* ]]; then
arg="${opt#*=}"
opt="${opt%%=*}"
hasarg=1
fi
case "$opt" in
--kerneldir)
kerneldir="$arg"
no_uname=1
;;
--with-patched-kernel)
want_module=
;;
--arch)
arch="$arg"
;;
--cross-prefix)
cross_prefix="$arg"
;;
--help)
usage
;;
*)
usage
;;
esac
done
karch="$arch"
case $arch in
i?86*|x86_64*)
arch=${arch/#i?86/i386}
karch="x86"
;;
esac
kvm_version() {
local fname="$(dirname "$0")/KVM_VERSION"
if test -f "$fname"; then
cat "$fname"
else
echo "kvm-devel"
fi
}
processor=${arch#*-}
arch=${arch%%-*}
# see if we have split build and source directories
if [ -d "$kerneldir/include2" ]; then
kernelsourcedir=$kerneldir/source
if [ ! -L "$kernelsourcedir" ]; then
kernelsourcedir=${kerneldir%/build*}/source
fi
fi
if [ -n "$no_uname" -a "$want_module" ]; then
if [ -e "$kerneldir/.kernelrelease" ]; then
depmod_version=`cat "$kerneldir/.kernelrelease"`
elif [ -e "$kerneldir/include/config/kernel.release" ]; then
depmod_version=`cat "$kerneldir/include/config/kernel.release"`
elif [ -e "$kerneldir/.config" ]; then
depmod_version=$(awk '/Linux kernel version:/ { print $NF }' \
"$kerneldir/.config")
else
echo
echo "Error: kernelversion not found"
echo "Please make sure your kernel is configured"
echo
exit 1
fi
fi
rm -f include/asm include-compat/asm
mkdir -p include
ln -sf asm-"$karch" include/asm
ln -sf asm-"$karch" include-compat/asm
cat <<EOF > config.mak
ARCH=$arch
PROCESSOR=$processor
PREFIX=$prefix
KERNELDIR=$kerneldir
KERNELSOURCEDIR=$kernelsourcedir
CROSS_COMPILE=$cross_prefix
CC=$cross_prefix$cc
LD=$cross_prefix$ld
OBJCOPY=$cross_prefix$objcopy
AR=$cross_prefix$ar
DEPMOD_VERSION=$depmod_version
KVM_VERSION=$(kvm_version)
EOF
|
