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#!/bin/bash
# $Id$
# Fills variable KERNEL_CONFIG
determine_config_file() {
for f in \
"${CMD_KERNEL_CONFIG}" \
"/etc/kernels/kernel-config-${ARCH}-${KV}" \
"${GK_SHARE}/arch/${ARCH}/kernel-config-${KV}" \
"${DEFAULT_KERNEL_CONFIG}" \
"${GK_SHARE}/arch/${ARCH}/kernel-config-${VER}.${PAT}" \
"${GK_SHARE}/arch/${ARCH}/generated-config" \
"${GK_SHARE}/arch/${ARCH}/kernel-config" \
; do
if [ -n "${f}" -a -f "${f}" ]
then
if ! grep -sq THIS_CONFIG_IS_BROKEN "$f"
then
KERNEL_CONFIG="$f" && break
fi
fi
done
if [ -z "${KERNEL_CONFIG}" ]
then
gen_die 'Error: No kernel .config specified, or file not found!'
fi
KERNEL_CONFIG="$(readlink -f "${KERNEL_CONFIG}")"
# Validate the symlink result if any
if [ ! -f "${KERNEL_CONFIG}" ]
then
gen_die "Error: No kernel .config: symlinked file not found! ($KERNEL_CONFIG)"
fi
}
function kconfig_set_opt() {
kconfig="$1"
optname="$2"
optval="$3"
sed -i "${kconfig}" \
-e "s/^#\? \?${optname}[ =].*/${optname}=${optval}/g" \
|| gen_die "Failed to set ${optname}=${optval} in $kconfig"
}
config_kernel() {
determine_config_file
cd "${KERNEL_DIR}" || gen_die 'Could not switch to the kernel directory!'
# Backup current kernel .config
if isTrue "${MRPROPER}" || [ ! -f "${KERNEL_OUTPUTDIR}/.config" ]
then
print_info 1 "kernel: Using config from ${KERNEL_CONFIG}"
if [ -f "${KERNEL_OUTPUTDIR}/.config" ]
then
NOW=`date +--%Y-%m-%d--%H-%M-%S`
cp "${KERNEL_OUTPUTDIR}/.config" "${KERNEL_OUTPUTDIR}/.config${NOW}.bak" \
|| gen_die "Could not backup kernel config (${KERNEL_OUTPUTDIR}/.config)"
print_info 1 " Previous config backed up to .config${NOW}.bak"
fi
fi
if isTrue ${MRPROPER}
then
print_info 1 'kernel: >> Running mrproper...'
compile_generic mrproper kernel
else
print_info 1 "kernel: --mrproper is disabled; not running 'make mrproper'."
fi
# If we're not cleaning a la mrproper, then we don't want to try to overwrite the configs
# or we might remove configurations someone is trying to test.
if isTrue "${MRPROPER}" || [ ! -f "${KERNEL_OUTPUTDIR}/.config" ]
then
local message='Could not copy configuration file!'
if [[ "$(file --brief --mime-type "${KERNEL_CONFIG}")" == application/x-gzip ]]; then
# Support --kernel-config=/proc/config.gz, mainly
zcat "${KERNEL_CONFIG}" > "${KERNEL_OUTPUTDIR}/.config" || gen_die "${message}"
else
cp "${KERNEL_CONFIG}" "${KERNEL_OUTPUTDIR}/.config" || gen_die "${message}"
fi
fi
if isTrue "${OLDCONFIG}"
then
print_info 1 ' >> Running oldconfig...'
yes '' 2>/dev/null | compile_generic oldconfig kernel 2>/dev/null
else
print_info 1 "kernel: --oldconfig is disabled; not running 'make oldconfig'."
fi
if isTrue "${CLEAN}"
then
print_info 1 'kernel: >> Cleaning...'
compile_generic clean kernel
else
print_info 1 "kernel: --clean is disabled; not running 'make clean'."
fi
if isTrue ${MENUCONFIG}
then
print_info 1 'kernel: >> Invoking menuconfig...'
compile_generic menuconfig kernelruntask
[ "$?" ] || gen_die 'Error: menuconfig failed!'
elif isTrue ${CMD_GCONFIG}
then
print_info 1 'kernel: >> Invoking gconfig...'
compile_generic gconfig kernel
[ "$?" ] || gen_die 'Error: gconfig failed!'
CMD_XCONFIG=0
fi
if isTrue ${CMD_XCONFIG}
then
print_info 1 'kernel: >> Invoking xconfig...'
compile_generic xconfig kernel
[ "$?" ] || gen_die 'Error: xconfig failed!'
fi
# Force this on if we are using --genzimage
if isTrue ${CMD_GENZIMAGE}
then
# Make sure Ext2 support is on...
kconfig_set_opt "${KERNEL_OUTPUTDIR}/.config" "CONFIG_EXT2_FS" "y"
fi
# Make sure lvm modules are on if --lvm
if isTrue ${CMD_LVM}
then
kconfig_set_opt "${KERNEL_OUTPUTDIR}/.config" "CONFIG_BLK_DEV_DM" "m"
kconfig_set_opt "${KERNEL_OUTPUTDIR}/.config" "CONFIG_DM_SNAPSHOT" "m"
kconfig_set_opt "${KERNEL_OUTPUTDIR}/.config" "CONFIG_DM_MIRROR" "m"
fi
# Multipath
if isTrue ${CMD_MULTIPATH}
then
kconfig_set_opt "${KERNEL_OUTPUTDIR}/.config" "CONFIG_BLK_DEV_DM" "m"
kconfig_set_opt "${KERNEL_OUTPUTDIR}/.config" "CONFIG_DM_MULTIPATH" "m"
kconfig_set_opt "${KERNEL_OUTPUTDIR}/.config" "CONFIG_DM_MULTIPATH_RDAC" "m"
fi
# Make sure dmraid modules are on if --dmraid
if isTrue ${CMD_DMRAID}
then
kconfig_set_opt "${KERNEL_OUTPUTDIR}/.config" "CONFIG_BLK_DEV_DM" "m"
fi
# Make sure iSCSI modules are enabled in the kernel, if --iscsi
# CONFIG_SCSI_ISCSI_ATTRS
# CONFIG_ISCSI_TCP
if isTrue ${CMD_ISCSI}
then
kconfig_set_opt "${KERNEL_OUTPUTDIR}/.config" "CONFIG_ISCSI_TCP" "m"
kconfig_set_opt "${KERNEL_OUTPUTDIR}/.config" "CONFIG_SCSI_ISCSI_ATTRS" "m"
fi
if isTrue ${SPLASH}
then
kconfig_set_opt "${KERNEL_OUTPUTDIR}/.config" "CONFIG_FB_SPLASH" "y"
fi
# VirtIO
if isTrue ${CMD_VIRTIO}
then
for k in \
CONFIG_VIRTIO \
CONFIG_VIRTIO_BALLOON \
CONFIG_VIRTIO_BLK \
CONFIG_VIRTIO_CONSOLE \
CONFIG_VIRTIO_INPUT \
CONFIG_VIRTIO_MMIO \
CONFIG_VIRTIO_MMIO_CMDLINE_DEVICES \
CONFIG_VIRTIO_NET \
CONFIG_VIRTIO_PCI \
\
CONFIG_PARAVIRT_GUEST \
CONFIG_SCSI_VIRTIO \
CONFIG_VHOST_NET \
; do
kconfig_set_opt "${KERNEL_OUTPUTDIR}/.config" "$k" "y"
done
fi
}
|
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