removes most of the old build tools

src/scripts/build_kernel_setup.sh

-#!/bin/sh
-
-# Copyright (c) 2009 The Chromium OS Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-# This script will launch the kernel build script from outside a chroot
-# environment and copy the kernel package into the chromeos source repository's
-# src/platform/kernel directory.
-
-set -e
-
-SRC_ROOT=${SRC_ROOT:-$(cd "$(dirname $0)/.." ; pwd)}
-KERNEL_DATA="${SRC_ROOT}/third_party/kernel"   # version-controlled kernel stuff
-BUILD_SCRIPT="build_kernel.sh"
-
-KCONFIG="$1"                        # kernel config file
-PKGREVISION="$2"                    # version number to stamp on the package
-ROOTFS="$3"                         # development environment (fakeroot)
-
-if [ $# -lt 3 ]
-then
-    echo "usage: $0 <kernel_config> <package_revision> <rootfs> <patch>"
-    echo "kernel_config: Kernel config from ${KERNEL_DATA}/config/."
-    echo "package_revision: The revision to stamp on the final .deb package."
-    echo "rootfs: Root directory of build environment"
-    echo "remaining arguments are assumed to be kernel patch names"
-    echo -n "Usage example: sh build_kernel.sh config.2.6.30-rc8-chromeos-intel-"
-    echo    "menlow 001 ~/src/chromeos/devenv"
-    echo ""
-    exit 1
-fi
-
-# Use remaining arguments as patch names.
-shift; shift; shift
-PATCHES="$*"
-
-if [ ! -d "$ROOTFS" ]
-then
-    echo "$ROOTFS is not a directory"
-    exit 1
-fi
-
-# Create a tmpfs to store output from build script which this script can copy
-# the output from later on. We won't know the actual filename of the output
-# but since this is a new namespace we're using it should be safe to use a use
-# a wildcard (e.g. linux-image*.deb) without copying the wrong .debs.
-OUTPUT_DIR="${ROOTFS}/tmp"
-sudo mkdir -p "$OUTPUT_DIR"
-sudo mount -t tmpfs size=32M "${OUTPUT_DIR}"
-do_cleanup() {
-    sudo umount "${OUTPUT_DIR}"
-}
-trap do_cleanup EXIT
-
-# Copy kernel build helper script to chroot environment
-sudo cp "${SRC_ROOT}/scripts/${BUILD_SCRIPT}" "${ROOTFS}/tmp/"
-
-# Run the build script.
-sudo chroot "$ROOTFS" "/tmp/${BUILD_SCRIPT}" "$KCONFIG" \
-            "$PKGREVISION" "${OUTPUT_DIR#$ROOTFS}/" "$PATCHES"
-
-# Copy kernel package from the output directory into Chrome OS sources
-# before the cleanup routine clobbers it.
-echo "Copying kernel to "$KERNEL_DATA""
-cp -i "$OUTPUT_DIR"/linux-image*.deb "$KERNEL_DATA"
-
-set +e