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