#!/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 'spl_config.h' ] then echo >&2 echo " $0: you did not run configure, or you're not in the SPL 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 "$KERNEL_DIR/include/spl" "$KERNEL_DIR/spl" cp --recursive include "$KERNEL_DIR/include/spl" cp --recursive module "$KERNEL_DIR/spl" cp spl_config.h "$KERNEL_DIR/" cp spl.release.in "$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 "$KERNEL_DIR/spl/$MODULE/Makefile" sed -i.bak '/obj =/d' "$KERNEL_DIR/spl/$MODULE/Makefile" sed -i.bak '/src =/d' "$KERNEL_DIR/spl/$MODULE/Makefile" done cat > "$KERNEL_DIR/spl/Kconfig" <<"EOF" config SPL tristate "Solaris Porting Layer (SPL)" help This is the SPL library from the ZFS On Linux project. See http://zfsonlinux.org/ To compile this library as a module, choose M here. If unsure, say N. EOF { cat <<-"EOF" SPL_MODULE_CFLAGS = -I$(srctree)/include/spl SPL_MODULE_CFLAGS += -include $(srctree)/spl_config.h export SPL_MODULE_CFLAGS obj-$(CONFIG_SPL) := EOF for MODULE in "${MODULES[@]}" do echo 'obj-$(CONFIG_SPL) += ' "$MODULE/" done } > "$KERNEL_DIR/spl/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/Kconfig" 'source "arch/$SRCARCH/Kconfig"' 'source "spl/Kconfig"' # We must take care to build SPL before ZFS, otherwise the symbols required # to link ZFS will not be available. sed -i 's~mm/ fs/~mm/ spl/ fs/~' "$KERNEL_DIR/Makefile" echo >&2 echo " $0: done." >&2 echo " $0: now you can build the kernel with SPL support." >&2 echo " $0: make sure you enable SPL support (CONFIG_SPL) before building." >&2 echo >&2