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#!/bin/bash
set -e
usage()
{
echo "usage: $0 <kernel source tree>" >&2
exit 1
}
[ "$#" -eq 1 ] || usage
KERNEL_DIR="$(readlink --canonicalize-existing "$1")"
MODULES=()
for MODULE_DIR in module/*
do
[ -d "$MODULE_DIR" ] || continue
MODULES+=("${MODULE_DIR##*/}")
done
if ! [ -e 'zfs_config.h' ]
then
echo >&2
echo " $0: you did not run configure, or you're not in the ZFS source directory." >&2
echo " $0: run configure with --with-linux=$KERNEL_DIR and --enable-linux-builtin." >&2
echo >&2
exit 1
fi
make clean || true
rm -rf "$KERNEL_DIR/include/zfs" "$KERNEL_DIR/fs/zfs"
cp --recursive include "$KERNEL_DIR/include/zfs"
cp --recursive module "$KERNEL_DIR/fs/zfs"
cp zfs_config.h "$KERNEL_DIR/"
adjust_obj_paths()
{
local FILE="$1"
local LINE OBJPATH
while IFS='' read -r LINE
do
OBJPATH="${LINE#\$(MODULE)-objs += }"
if [ "$OBJPATH" = "$LINE" ]
then
echo "$LINE"
else
echo "\$(MODULE)-objs += ${OBJPATH##*/}"
fi
done < "$FILE" > "$FILE.new"
mv "$FILE.new" "$FILE"
}
for MODULE in "${MODULES[@]}"
do
adjust_obj_paths "$KERNEL_DIR/fs/zfs/$MODULE/Makefile"
done
cat > "$KERNEL_DIR/fs/zfs/Kconfig" <<"EOF"
config ZFS
tristate "ZFS filesystem support"
depends on SPL
depends on EFI_PARTITION
select ZLIB_INFLATE
select ZLIB_DEFLATE
help
This is the ZFS filesystem from the ZFS On Linux project.
See http://zfsonlinux.org/
To compile this file system support as a module, choose M here.
If unsure, say N.
EOF
{
cat <<-"EOF"
ZFS_MODULE_CFLAGS = -I$(srctree)/include/zfs -I$(srctree)/include/spl
ZFS_MODULE_CFLAGS += -include $(srctree)/spl_config.h -include $(srctree)/zfs_config.h
export ZFS_MODULE_CFLAGS
obj-$(CONFIG_ZFS) :=
EOF
for MODULE in "${MODULES[@]}"
do
echo 'obj-$(CONFIG_ZFS) += ' "$MODULE/"
done
} > "$KERNEL_DIR/fs/zfs/Kbuild"
add_after()
{
local FILE="$1"
local MARKER="$2"
local NEW="$3"
local LINE
while IFS='' read -r LINE
do
echo "$LINE"
if [ -n "$MARKER" -a "$LINE" = "$MARKER" ]
then
echo "$NEW"
MARKER=''
if IFS='' read -r LINE
then
[ "$LINE" != "$NEW" ] && echo "$LINE"
fi
fi
done < "$FILE" > "$FILE.new"
mv "$FILE.new" "$FILE"
}
add_after "$KERNEL_DIR/fs/Kconfig" 'if BLOCK' 'source "fs/zfs/Kconfig"'
add_after "$KERNEL_DIR/fs/Makefile" 'endif' 'obj-$(CONFIG_ZFS) += zfs/'
echo >&2
echo " $0: done." >&2
echo " $0: now you can build the kernel with ZFS support." >&2
echo " $0: make sure you enable ZFS support (CONFIG_ZFS) before building." >&2
echo >&2
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