copy-builtin

   1 #!/bin/bash
   2
   3 set -e
   4
   5 usage()
   6 {
   7         echo "usage: $0 <kernel source tree>" >&2
   8         exit 1
   9 }
  10
  11 [ "$#" -eq 1 ] || usage
  12 KERNEL_DIR="$(readlink --canonicalize-existing "$1")"
  13
  14 MODULES=()
  15 for MODULE_DIR in module/*
  16 do
  17         [ -d "$MODULE_DIR" ] || continue
  18         MODULES+=("${MODULE_DIR##*/}")
  19 done
  20
  21 if ! [ -e 'zfs_config.h' ]
  22 then
  23         echo >&2
  24         echo "    $0: you did not run configure, or you're not in the ZFS source directory." >&2
  25         echo "    $0: run configure with --with-linux=$KERNEL_DIR and --enable-linux-builtin." >&2
  26         echo >&2
  27         exit 1
  28 fi
  29
  30 make clean || true
  31
  32 rm -rf "$KERNEL_DIR/include/zfs" "$KERNEL_DIR/fs/zfs"
  33 cp --recursive include "$KERNEL_DIR/include/zfs"
  34 cp --recursive module "$KERNEL_DIR/fs/zfs"
  35 cp zfs_config.h "$KERNEL_DIR/"
  36
  37 for MODULE in "${MODULES[@]}"
  38 do
  39         sed -i.bak '/obj =/d' "$KERNEL_DIR/fs/zfs/$MODULE/Makefile"
  40         sed -i.bak '/src =/d' "$KERNEL_DIR/fs/zfs/$MODULE/Makefile"
  41 done
  42
  43 cat > "$KERNEL_DIR/fs/zfs/Kconfig" <<"EOF"
  44 config ZFS
  45         tristate "ZFS filesystem support"
  46         depends on SPL
  47         depends on EFI_PARTITION
  48         select ZLIB_INFLATE
  49         select ZLIB_DEFLATE
  50         help
  51           This is the ZFS filesystem from the ZFS On Linux project.
  52
  53           See http://zfsonlinux.org/
  54
  55           To compile this file system support as a module, choose M here.
  56
  57           If unsure, say N.
  58 EOF
  59
  60 {
  61         cat <<-"EOF"
  62         ZFS_MODULE_CFLAGS  = -I$(srctree)/include/zfs
  63         ZFS_MODULE_CFLAGS += -I$(srctree)/include/spl
  64         ZFS_MODULE_CFLAGS += -include $(srctree)/spl_config.h
  65         ZFS_MODULE_CFLAGS += -include $(srctree)/zfs_config.h
  66         ZFS_MODULE_CLFAGS += -std=gnu99
  67         export ZFS_MODULE_CFLAGS
  68
  69         obj-$(CONFIG_ZFS) :=
  70         EOF
  71
  72         for MODULE in "${MODULES[@]}"
  73         do
  74                 echo 'obj-$(CONFIG_ZFS) += ' "$MODULE/"
  75         done
  76 } > "$KERNEL_DIR/fs/zfs/Kbuild"
  77
  78 add_after()
  79 {
  80         local FILE="$1"
  81         local MARKER="$2"
  82         local NEW="$3"
  83         local LINE
  84
  85         while IFS='' read -r LINE
  86         do
  87                 echo "$LINE"
  88
  89                 if [ -n "$MARKER" -a "$LINE" = "$MARKER" ]
  90                 then
  91                         echo "$NEW"
  92                         MARKER=''
  93                         if IFS='' read -r LINE
  94                         then
  95                                 [ "$LINE" != "$NEW" ] && echo "$LINE"
  96                         fi
  97                 fi
  98         done < "$FILE" > "$FILE.new"
  99
 100         mv "$FILE.new" "$FILE"
 101 }
 102
 103 add_after "$KERNEL_DIR/fs/Kconfig" 'if BLOCK' 'source "fs/zfs/Kconfig"'
 104 add_after "$KERNEL_DIR/fs/Makefile" 'endif' 'obj-$(CONFIG_ZFS) += zfs/'
 105
 106 echo >&2
 107 echo "    $0: done." >&2
 108 echo "    $0: now you can build the kernel with ZFS support." >&2
 109 echo "    $0: make sure you enable ZFS support (CONFIG_ZFS) before building." >&2
 110 echo >&2