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