gen_configkernel.sh

   1 #!/bin/bash
   2 # $Id$
   3
   4 # Fills variable KERNEL_CONFIG
   5 determine_config_file() {
   6         if [ "${CMD_KERNEL_CONFIG}" != "" ]
   7         then
   8                 KERNEL_CONFIG="${CMD_KERNEL_CONFIG}"
   9         elif [ -f "/etc/kernels/kernel-config-${ARCH}-${KV}" ]
  10         then
  11                 KERNEL_CONFIG="/etc/kernels/kernel-config-${ARCH}-${KV}"
  12         elif [ -f "${GK_SHARE}/arch/${ARCH}/kernel-config-${KV}" ]
  13         then
  14                 KERNEL_CONFIG="${GK_SHARE}/arch/${ARCH}/kernel-config-${KV}"
  15         elif [ "${DEFAULT_KERNEL_CONFIG}" != "" -a -f "${DEFAULT_KERNEL_CONFIG}" ]
  16         then
  17                 KERNEL_CONFIG="${DEFAULT_KERNEL_CONFIG}"
  18         elif [ -f "${GK_SHARE}/arch/${ARCH}/kernel-config-${VER}.${PAT}" ]
  19         then
  20                 KERNEL_CONFIG="${GK_SHARE}/arch/${ARCH}/kernel-config-${VER}.${PAT}"
  21         elif [ -f "${GK_SHARE}/arch/${ARCH}/kernel-config" ]
  22         then
  23                 KERNEL_CONFIG="${GK_SHARE}/arch/${ARCH}/kernel-config"
  24         else
  25                 gen_die 'Error: No kernel .config specified, or file not found!'
  26         fi
  27     KERNEL_CONFIG="$(readlink -f "${KERNEL_CONFIG}")"
  28 }
  29
  30 config_kernel() {
  31         determine_config_file
  32         cd "${KERNEL_DIR}" || gen_die 'Could not switch to the kernel directory!'
  33
  34         # Backup current kernel .config
  35         if isTrue "${MRPROPER}" || [ ! -f "${KERNEL_OUTPUTDIR}/.config" ]
  36         then
  37                 print_info 1 "kernel: Using config from ${KERNEL_CONFIG}"
  38                 if [ -f "${KERNEL_OUTPUTDIR}/.config" ]
  39                 then
  40                         NOW=`date +--%Y-%m-%d--%H-%M-%S`
  41                         cp "${KERNEL_OUTPUTDIR}/.config" "${KERNEL_OUTPUTDIR}/.config${NOW}.bak" \
  42                                         || gen_die "Could not backup kernel config (${KERNEL_OUTPUTDIR}/.config)"
  43                         print_info 1 "        Previous config backed up to .config${NOW}.bak"
  44                 fi
  45         fi
  46
  47         if isTrue ${MRPROPER}
  48         then
  49                 print_info 1 'kernel: >> Running mrproper...'
  50                 compile_generic mrproper kernel
  51         else
  52                 print_info 1 "kernel: --mrproper is disabled; not running 'make mrproper'."
  53         fi
  54
  55         # If we're not cleaning a la mrproper, then we don't want to try to overwrite the configs
  56         # or we might remove configurations someone is trying to test.
  57         if isTrue "${MRPROPER}" || [ ! -f "${KERNEL_OUTPUTDIR}/.config" ]
  58         then
  59                 local message='Could not copy configuration file!'
  60                 if [[ "$(file --brief --mime-type "${KERNEL_CONFIG}")" == application/x-gzip ]]; then
  61                         # Support --kernel-config=/proc/config.gz, mainly
  62                         zcat "${KERNEL_CONFIG}" > "${KERNEL_OUTPUTDIR}/.config" || gen_die "${message}"
  63                 else
  64                         cp "${KERNEL_CONFIG}" "${KERNEL_OUTPUTDIR}/.config" || gen_die "${message}"
  65                 fi
  66         fi
  67
  68         if isTrue "${OLDCONFIG}"
  69         then
  70                 print_info 1 '        >> Running oldconfig...'
  71                 yes '' 2>/dev/null | compile_generic oldconfig kernel 2>/dev/null
  72         else
  73                 print_info 1 "kernel: --oldconfig is disabled; not running 'make oldconfig'."
  74         fi
  75         if isTrue "${CLEAN}"
  76         then
  77                 print_info 1 'kernel: >> Cleaning...'
  78                 compile_generic clean kernel
  79         else
  80                 print_info 1 "kernel: --clean is disabled; not running 'make clean'."
  81         fi
  82
  83         if isTrue ${MENUCONFIG}
  84         then
  85                 print_info 1 'kernel: >> Invoking menuconfig...'
  86                 compile_generic menuconfig kernelruntask
  87                 [ "$?" ] || gen_die 'Error: menuconfig failed!'
  88         elif isTrue ${CMD_GCONFIG}
  89         then
  90                 print_info 1 'kernel: >> Invoking gconfig...'
  91                 compile_generic gconfig kernel
  92                 [ "$?" ] || gen_die 'Error: gconfig failed!'
  93
  94                 CMD_XCONFIG=0
  95         fi
  96
  97         if isTrue ${CMD_XCONFIG}
  98         then
  99                 print_info 1 'kernel: >> Invoking xconfig...'
 100                 compile_generic xconfig kernel
 101                 [ "$?" ] || gen_die 'Error: xconfig failed!'
 102         fi
 103
 104         # Force this on if we are using --genzimage
 105         if isTrue ${CMD_GENZIMAGE}
 106         then
 107                 # Make sure Ext2 support is on...
 108                 sed -e 's/#\? \?CONFIG_EXT2_FS[ =].*/CONFIG_EXT2_FS=y/g' \
 109                         -i ${KERNEL_OUTPUTDIR}/.config
 110         fi
 111
 112         # Make sure lvm modules are on if --lvm
 113         if isTrue ${CMD_LVM}
 114         then
 115                 sed -i ${KERNEL_OUTPUTDIR}/.config -e 's/#\? \?CONFIG_BLK_DEV_DM is.*/CONFIG_BLK_DEV_DM=m/g'
 116                 sed -i ${KERNEL_OUTPUTDIR}/.config -e 's/#\? \?CONFIG_DM_SNAPSHOT is.*/CONFIG_DM_SNAPSHOT=m/g'
 117                 sed -i ${KERNEL_OUTPUTDIR}/.config -e 's/#\? \?CONFIG_DM_MIRROR is.*/CONFIG_DM_MIRROR=m/g'
 118         fi
 119
 120         # Multipath
 121         if isTrue ${CMD_MULTIPATH}
 122         then
 123                 sed -i ${KERNEL_DIR}/.config -e 's/#\? \?CONFIG_BLK_DEV_DM is.*/CONFIG_BLK_DEV_DM=m/g'
 124                 sed -i ${KERNEL_DIR}/.config -e 's/#\? \?CONFIG_DM_MULTIPATH is.*/CONFIG_DM_MULTIPATH=m/g'
 125                 sed -i ${KERNEL_DIR}/.config -e 's/#\? \?CONFIG_DM_MULTIPATH_RDAC is.*/CONFIG_DM_MULTIPATH_RDAC=m/g'
 126         fi
 127
 128         # Make sure dmraid modules are on if --dmraid
 129         if isTrue ${CMD_DMRAID}
 130         then
 131                 sed -i ${KERNEL_OUTPUTDIR}/.config -e 's/#\? \?CONFIG_BLK_DEV_DM is.*/CONFIG_BLK_DEV_DM=m/g'
 132         fi
 133
 134         # Make sure iSCSI modules are enabled in the kernel, if --iscsi
 135         # CONFIG_SCSI_ISCSI_ATTRS
 136         # CONFIG_ISCSI_TCP
 137         if isTrue ${CMD_ISCSI}
 138         then
 139                 sed -i ${KERNEL_OUTPUTDIR}/.config -e 's/\# CONFIG_ISCSI_TCP is not set/CONFIG_ISCSI_TCP=m/g'
 140                 sed -i ${KERNEL_OUTPUTDIR}/.config -e 's/\# CONFIG_SCSI_ISCSI_ATTRS is not set/CONFIG_SCSI_ISCSI_ATTRS=m/g'
 141
 142                 sed -i ${KERNEL_OUTPUTDIR}/.config -e 's/CONFIG_ISCSI_TCP=y/CONFIG_ISCSI_TCP=m/g'
 143                 sed -i ${KERNEL_OUTPUTDIR}/.config -e 's/CONFIG_SCSI_ISCSI_ATTRS=y/CONFIG_SCSI_ISCSI_ATTRS=m/g'
 144         fi
 145
 146         if isTrue ${SPLASH}
 147         then
 148                 sed -i ${KERNEL_OUTPUTDIR}/.config -e 's/#\? \?CONFIG_FB_SPLASH is.*/CONFIG_FB_SPLASH=y/g'
 149         fi
 150
 151         # VirtIO
 152         if isTrue ${CMD_VIRTIO}
 153         then
 154                 sed -i ${KERNEL_DIR}/.config -e 's/#\? \?CONFIG_PARAVIRT_GUEST.*/CONFIG_PARAVIRT_GUEST=y/g'
 155                 sed -i ${KERNEL_DIR}/.config -e 's/#\? \?CONFIG_VIRTIO_PCI.*/CONFIG_VIRTIO_PCI=y/g'
 156                 sed -i ${KERNEL_DIR}/.config -e 's/#\? \?CONFIG_VIRTIO_BALLOON.*/CONFIG_VIRTIO_BALLOON=y/g'
 157                 sed -i ${KERNEL_DIR}/.config -e 's/#\? \?CONFIG_VIRTIO_MMIO.*/CONFIG_VIRTIO_MMIO=y/g'
 158                 sed -i ${KERNEL_DIR}/.config -e 's/#\? \?CONFIG_VIRTIO_BLK.*/CONFIG_VIRTIO_BLK=y/g'
 159                 sed -i ${KERNEL_DIR}/.config -e 's/#\? \?CONFIG_SCSI_VIRTIO.*/CONFIG_SCSI_VIRTIO=y/g'
 160                 sed -i ${KERNEL_DIR}/.config -e 's/#\? \?CONFIG_VIRTIO_NET.*/CONFIG_VIRTIO_NET=y/g'
 161                 sed -i ${KERNEL_DIR}/.config -e 's/#\? \?CONFIG_VHOST_NET.*/CONFIG_VHOST_NET=y/g'
 162         fi
 163
 164         for KEY in "${!KCONFIG[@]}"; do
 165                 VALUE="${KCONFIG[$KEY]}"
 166                 sed -i ${KERNEL_DIR}/.config -e "s/#\? \?$KEY.*/$KEY=$VALUE/g'
 167         done
 168 }