diff options
Diffstat (limited to 'src/VBox/HostDrivers/linux/build_in_tmp')
| -rwxr-xr-x | src/VBox/HostDrivers/linux/build_in_tmp | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/src/VBox/HostDrivers/linux/build_in_tmp b/src/VBox/HostDrivers/linux/build_in_tmp new file mode 100755 index 00000000..0c467038 --- /dev/null +++ b/src/VBox/HostDrivers/linux/build_in_tmp @@ -0,0 +1,104 @@ +#!/bin/sh +# $Id: build_in_tmp $ +## @file +# Script to build a kernel module in /tmp. +# +# Useful if the module sources are installed in read-only directory. +# + +# +# Copyright (C) 2007-2022 Oracle and/or its affiliates. +# +# This file is part of VirtualBox base platform packages, as +# available from https://www.virtualbox.org. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License +# as published by the Free Software Foundation, in version 3 of the +# License. +# +# This program is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, see <https://www.gnu.org/licenses>. +# +# The contents of this file may alternatively be used under the terms +# of the Common Development and Distribution License Version 1.0 +# (CDDL), a copy of it is provided in the "COPYING.CDDL" file included +# in the VirtualBox distribution, in which case the provisions of the +# CDDL are applicable instead of those of the GPL. +# +# You may elect to license modified versions of this file under the +# terms and conditions of either the GPL or the CDDL or both. +# +# SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 +# + +# find a unique temp directory +num=0 +while true; do + tmpdir="/tmp/vbox.$num" + if mkdir -m 0755 "$tmpdir" 2> /dev/null; then + break + fi + num=`expr $num + 1` + if [ $num -gt 200 ]; then + echo "Could not find a valid tmp directory" + exit 1 + fi +done + +# Guest optimal number of make jobs. +MAKE_JOBS=`grep vendor_id /proc/cpuinfo | wc -l` +if [ "${MAKE_JOBS}" -le "0" ]; then MAKE_JOBS=1; fi + +# Parse our arguments, anything we don't grok is for make. +while true; do + if [ "$1" = "--save-module-symvers" ]; then + shift + SAVE_MOD_SYMVERS="$1" + shift + elif [ "$1" = "--use-module-symvers" ]; then + shift + USE_MOD_SYMVERS="$1" + shift + elif [ "$1" = "--module-source" ]; then + shift + MODULE_SOURCE="$1" + shift + else + break + fi +done + +# copy +if [ -n "$MODULE_SOURCE" ]; then + cp -a "$MODULE_SOURCE"/* $tmpdir/ +else + cp -a ${0%/*}/* $tmpdir/ +fi +if [ -n "$USE_MOD_SYMVERS" ]; then + cp $USE_MOD_SYMVERS $tmpdir/Module.symvers + MAKE_EXTRAOPTS="KBUILD_EXTRA_SYMBOLS=$tmpdir/Module.symvers" +fi + +# make, cleanup if success +cd "$tmpdir" +if make CONFIG_MODULE_COMPRESS_GZIP= CONFIG_MODULE_COMPRESS_XZ= CONFIG_MODULE_COMPRESS_ZSTD= "-j`echo ${MAKE_JOBS}`" "$@" ${MAKE_EXTRAOPTS}; then # strip leading space from "MAKE_JOBS" + if [ -n "$SAVE_MOD_SYMVERS" ]; then + if [ -f Module.symvers ]; then + cp -f Module.symvers $SAVE_MOD_SYMVERS + else + cat /dev/null > $SAVE_MOD_SYMVERS + fi + fi + rm -rf $tmpdir + exit 0 +fi + +# failure +rm -rf $tmpdir +exit 1 |