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|
#! /bin/bash
#----------------------------------------------------------------------
# Description: Hacked down & butchered scripts/prepare-kernel.sh..
# Script to copy assorted sources to a temp directory and
# generate a kernel patch without the need of a virgin
# linux source tree.
#----------------------------------------------------------------------
set -e
unset CDPATH
patch_file=xenomai_all.patch
supported_arch="$*"
patch_append() {
file="$1"
# echo "diff -u1wbr orig/$file new/$file" >> $patch_file
echo "--- linux/$file 1970-01-01 01:00:00.000000000 +0100" >> $patch_file
echo "+++ linux-patched/$file 2007-03-06 17:55:58.000000000 +0000" >> $patch_file
echo "@@ -500000,0 +500000,2 @@" >> $patch_file
echo "+" >> $patch_file
cat >> $patch_file
}
patch_link() {
recursive="$1" # "r" or "n"
link_makefiles="$2" # "m" or "n"
target_dir="$3"
link_dir="$4"
(
recursive_opt=""
directorytype_opt=""
if test x$recursive = xr; then
recursive_opts="-mindepth 1"
directorytype_opt="-type d -o"
else
recursive_opt="-maxdepth 1"
fi
link_makefiles_opt=""
if test x$link_makefiles = xm; then
link_makefiles_opt="-name Makefile -o"
fi
cd $xenomai_root/$target_dir &&
find . $recursive_opt \( $link_makefiles_opt -name Kconfig -o -name '*.[chS]' \) |
while read f; do
f=`echo $f | cut -d/ -f2-`
d=`dirname $f`
if test ! -d $temp_tree/$link_dir/$d ; then
mkdir -p $temp_tree/$link_dir/$d
fi
cp $xenomai_root/$target_dir/$f $temp_tree/$link_dir/$f
done
)
}
generate_patch() {
(
cd "$temp_tree"
find . -name demos -o -name snippets -exec rm -fR {} \+ &&
find . -type f |
while read f ; do
diff -Naurd "$linux_tree/$f" "$f" |
sed -e "s,^--- ${linux_tree}/\.\(/.*\)$,--- linux\1," \
-e "s,^+++ \.\(/.*\)$,+++ linux-patched\1,"
done
)
}
diff_addons() {
lines=`cat $xenomai_root/scripts/Kconfig.frag | wc -l`
echo "--- linux/init/Kconfig 1970-01-01 01:00:00.000000000 +0100" >> $patch_file
echo "+++ linux-patched/init/Kconfig 2007-03-06 17:55:58.000000000 +0000" >> $patch_file
echo "@@ -500000,0 +500000,$lines @@" >> $patch_file
sed -e "s,@LINUX_ARCH@,$linux_arch,g" $xenomai_root/scripts/Kconfig.frag | sed 's/^/+/' >> $patch_file
echo " " >> $patch_file
}
xenomai_root=`dirname $0`/..
xenomai_root=`cd $xenomai_root && pwd`
rm -fR $xenomai_root/tmp
rm -f $patch_file
mkdir -p $xenomai_root/tmp/linux
mkdir -p $xenomai_root/tmp/linux.new
linux_tree="$xenomai_root/tmp/linux"
temp_tree="$xenomai_root/tmp/linux.new"
for linux_arch in $supported_arch ; do
case $linux_arch in
i386)
base_arch=x86
;;
x86_64)
base_arch=x86
;;
x86)
base_arch=x86
;;
*)
base_arch=$linux_arch
;;
esac
patch_link r m ksrc/arch/$base_arch arch/$linux_arch/xenomai
patch_link r n include/asm-$base_arch arch/$linux_arch/include/asm/xenomai
p="+drivers-\$(CONFIG_XENOMAI) += arch/$linux_arch/xenomai/"
echo $p | patch_append arch/$linux_arch/Makefile
diff_addons
done
p="+obj-\$(CONFIG_XENOMAI) += xenomai/"
echo $p | patch_append drivers/Makefile
p="+obj-\$(CONFIG_XENOMAI) += xenomai/"
echo $p | patch_append kernel/Makefile
# Create local directories then symlink to the source files from
# there, so that we don't pollute the Xenomai source tree with
# compilation files.
patch_link n m ksrc/ kernel/xenomai
patch_link n m ksrc/arch kernel/xenomai/arch
patch_link r m ksrc/arch/generic kernel/xenomai/arch/generic
patch_link n m ksrc/nucleus kernel/xenomai/nucleus
patch_link r m ksrc/skins kernel/xenomai/skins
patch_link r m ksrc/drivers drivers/xenomai
patch_link r n include/asm-generic include/asm-generic/xenomai
patch_link n n include include/xenomai
cd $xenomai_root
for d in include/* ; do
if test -d $d -a -z "`echo $d | grep '^include/asm-'`"; then
destdir=`echo $d | sed -e 's,^\(include\)\(/.*\)$,\1/xenomai\2,'`
patch_link r n $d $destdir
fi
done
generate_patch >> $patch_file
cd $xenomai_root
find $xenomai_root/ksrc/ -name "*ipipe*-$supported_arch-*.patch" |
while read f ; do
file=`basename $f`
arch=`echo $file | cut -d- -f4`
kver=`echo $file | cut -d- -f3`
case $arch in
arm)
march=arm
;;
i386)
march=i386
;;
ppc|ppc64|powerpc)
march=powerpc
;;
x86_64)
march=amd64
;;
x86)
march=i386
;;
esac
cp $f $xenomai_root/$file
cat $xenomai_root/$patch_file >> $xenomai_root/$file
done
exit 0
|
