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https://github.com/xen-project/xen.git
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cl349@firebug.cl.cam.ac.uk
853a0f3cca
Support Xen-ifying a complete NetBSD source tree. Signed-off-by: Christian Limpach <cl@NetBSD.org>
129 lines
3.2 KiB
Bash
Executable File
129 lines
3.2 KiB
Bash
Executable File
#!/bin/bash
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# mkbuildtree <build tree>
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#
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# Creates symbolic links in <build tree> for the sparse tree
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# in the current directory.
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# Script to determine the relative path between two directories.
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# Copyright (c) D. J. Hawkey Jr. 2002
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# Fixed for Xen project by K. Fraser in 2003.
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abs_to_rel ()
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{
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local CWD SRCPATH
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if [ "$1" != "/" -a "${1##*[^/]}" = "/" ]; then
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SRCPATH=${1%?}
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else
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SRCPATH=$1
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fi
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if [ "$2" != "/" -a "${2##*[^/]}" = "/" ]; then
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DESTPATH=${2%?}
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else
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DESTPATH=$2
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fi
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CWD=$PWD
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[ "${1%%[^/]*}" != "/" ] && cd $1 && SRCPATH=$PWD
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[ "${2%%[^/]*}" != "/" ] && cd $2 && DESTPATH=$PWD
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[ "$CWD" != "$PWD" ] && cd $CWD
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BASEPATH=$SRCPATH
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[ "$SRCPATH" = "$DESTPATH" ] && DESTPATH="." && return
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[ "$SRCPATH" = "/" ] && DESTPATH=${DESTPATH#?} && return
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while [ "$BASEPATH/" != "${DESTPATH%${DESTPATH#$BASEPATH/}}" ]; do
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BASEPATH=${BASEPATH%/*}
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done
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SRCPATH=${SRCPATH#$BASEPATH}
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DESTPATH=${DESTPATH#$BASEPATH}
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DESTPATH=${DESTPATH#?}
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while [ -n "$SRCPATH" ]; do
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SRCPATH=${SRCPATH%/*}
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DESTPATH="../$DESTPATH"
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done
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[ -z "$BASEPATH" ] && BASEPATH="/"
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[ "${DESTPATH##*[^/]}" = "/" ] && DESTPATH=${DESTPATH%?}
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}
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# relative_lndir <target_dir>
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# Creates a tree of symlinks in the current working directory that mirror
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# real files in <target_dir>. <target_dir> should be relative to the current
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# working directory. Symlinks in <target_dir> are ignored. Source-control files
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# are ignored.
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relative_lndir ()
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{
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local SYMLINK_DIR REAL_DIR pref i j
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SYMLINK_DIR=$PWD
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REAL_DIR=$1
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(
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cd $REAL_DIR
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for i in `find . -type d | grep -v SCCS`; do
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[ -d $SYMLINK_DIR/$i ] || mkdir -p $SYMLINK_DIR/$i
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(
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cd $i
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pref=`echo $i | sed -e 's#/[^/]*#../#g' -e 's#^\.##'`
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for j in `find . -type f -o -type l -maxdepth 1`; do
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ln -sf ${pref}${REAL_DIR}/$i/$j ${SYMLINK_DIR}/$i/$j
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done
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)
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done
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)
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}
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[ "$1" == "" ] && { echo "Syntax: $0 <linux tree to xenify>"; exit 1; }
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# Get absolute path to the destination directory
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pushd . >/dev/null
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cd ${1}
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AD=$PWD
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popd >/dev/null
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# Get absolute path to the source directory
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AS=`pwd`
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# Get name of sparse directory
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SDN=$(basename $AS)
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# Get path to source, relative to destination
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abs_to_rel ${AD} ${AS}
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RS=$DESTPATH
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# Remove old copies of files and directories at the destination
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for i in `find sys -type f -o -type l` ; do rm -f ${AD}/${i#./} ; done
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# We now work from the destination directory
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cd ${AD}
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# Remove old symlinks
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find sys -type l | while read f
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do
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case $(readlink $f) in
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*/$SDN/*)
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rm -f $f
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;;
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esac
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done
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if [ -f ${AD}/BUILDING ]; then
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# Create symlinks of files and directories which exist in the sparse source
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(cd sys && relative_lndir ../${RS}/sys)
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else
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# Create symlinks of files and directories which exist in the sparse source
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relative_lndir ${RS}
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rm -f mkbuildtree
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fi
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# Create links to the shared definitions of the Xen interface
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rm -rf ${AD}/sys/arch/xen/include/xen-public
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mkdir ${AD}/sys/arch/xen/include/xen-public
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cd ${AD}/sys/arch/xen/include/xen-public
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relative_lndir ../../../../../${RS}/../xen/include/public
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# Remove files which don't exist anymore
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rm -rf ${AD}/sys/arch/xen/xen/events.c
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rm -rf ${AD}/sys/arch/xen/include/events.h
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