484df459f0
One reason the kernel does not build reproducibly is that it includes a timestamp in the version string. SOURCE_DATE_EPOCH provides a standard method to address this: it should be set to the last modification time of the source, and build processes use the specified timestamp instead of the "current" date and time. This change uses SOURCE_DATE_EPOCH if it is set; how it gets set needs to be addressed elsewhere. Reviewed by: bapt MFC after: 1 week Sponsored by: The FreeBSD Foundation
243 lines
6.5 KiB
Bash
243 lines
6.5 KiB
Bash
#!/bin/sh -
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#
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# Copyright (c) 1984, 1986, 1990, 1993
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# The Regents of the University of California. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# 4. Neither the name of the University nor the names of its contributors
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# may be used to endorse or promote products derived from this software
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# without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# @(#)newvers.sh 8.1 (Berkeley) 4/20/94
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# $FreeBSD$
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TYPE="FreeBSD"
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REVISION="11.0"
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BRANCH="CURRENT"
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if [ -n "${BRANCH_OVERRIDE}" ]; then
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BRANCH=${BRANCH_OVERRIDE}
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fi
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RELEASE="${REVISION}-${BRANCH}"
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VERSION="${TYPE} ${RELEASE}"
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if [ -z "${SYSDIR}" ]; then
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SYSDIR=$(dirname $0)/..
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fi
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if [ -n "${PARAMFILE}" ]; then
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RELDATE=$(awk '/__FreeBSD_version.*propagated to newvers/ {print $3}' \
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${PARAMFILE})
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else
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RELDATE=$(awk '/__FreeBSD_version.*propagated to newvers/ {print $3}' \
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${SYSDIR}/sys/param.h)
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fi
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b=share/examples/etc/bsd-style-copyright
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if [ -r "${SYSDIR}/../COPYRIGHT" ]; then
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year=$(sed -Ee '/^Copyright .* The FreeBSD Project/!d;s/^.*1992-([0-9]*) .*$/\1/g' ${SYSDIR}/../COPYRIGHT)
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else
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year=$(date +%Y)
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fi
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# look for copyright template
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for bsd_copyright in ../$b ../../$b ../../../$b /usr/src/$b /usr/$b
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do
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if [ -r "$bsd_copyright" ]; then
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COPYRIGHT=`sed \
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-e "s/\[year\]/1992-$year/" \
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-e 's/\[your name here\]\.* /The FreeBSD Project./' \
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-e 's/\[your name\]\.*/The FreeBSD Project./' \
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-e '/\[id for your version control system, if any\]/d' \
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$bsd_copyright`
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break
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fi
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done
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# no copyright found, use a dummy
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if [ -z "$COPYRIGHT" ]; then
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COPYRIGHT="/*-
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* Copyright (c) 1992-$year The FreeBSD Project.
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* All rights reserved.
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*
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*/"
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fi
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# add newline
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COPYRIGHT="$COPYRIGHT
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"
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# VARS_ONLY means no files should be generated, this is just being
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# included.
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if [ -n "$VARS_ONLY" ]; then
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return 0
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fi
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LC_ALL=C; export LC_ALL
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if [ ! -r version ]
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then
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echo 0 > version
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fi
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touch version
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v=`cat version` u=${USER:-root} d=`pwd` h=${HOSTNAME:-`hostname`}
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if [ -n "$SOURCE_DATE_EPOCH" ]; then
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if ! t=`date -r $SOURCE_DATE_EPOCH 2>/dev/null`; then
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echo "Invalid SOURCE_DATE_EPOCH" >&2
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exit 1
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fi
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else
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t=`date`
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fi
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i=`${MAKE:-make} -V KERN_IDENT`
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compiler_v=$($(${MAKE:-make} -V CC) -v 2>&1 | grep -w 'version')
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for dir in /usr/bin /usr/local/bin; do
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if [ ! -z "${svnversion}" ] ; then
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break
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fi
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if [ -x "${dir}/svnversion" ] && [ -z ${svnversion} ] ; then
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# Run svnversion from ${dir} on this script; if return code
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# is not zero, the checkout might not be compatible with the
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# svnversion being used.
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${dir}/svnversion $(realpath ${0}) >/dev/null 2>&1
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if [ $? -eq 0 ]; then
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svnversion=${dir}/svnversion
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break
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fi
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fi
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done
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if [ -z "${svnversion}" ] && [ -x /usr/bin/svnliteversion ] ; then
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/usr/bin/svnliteversion $(realpath ${0}) >/dev/null 2>&1
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if [ $? -eq 0 ]; then
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svnversion=/usr/bin/svnliteversion
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else
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svnversion=
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fi
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fi
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for dir in /usr/bin /usr/local/bin; do
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if [ -x "${dir}/p4" ] && [ -z ${p4_cmd} ] ; then
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p4_cmd=${dir}/p4
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fi
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done
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if [ -d "${SYSDIR}/../.git" ] ; then
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for dir in /usr/bin /usr/local/bin; do
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if [ -x "${dir}/git" ] ; then
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git_cmd="${dir}/git --git-dir=${SYSDIR}/../.git"
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break
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fi
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done
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fi
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if [ -d "${SYSDIR}/../.hg" ] ; then
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for dir in /usr/bin /usr/local/bin; do
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if [ -x "${dir}/hg" ] ; then
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hg_cmd="${dir}/hg -R ${SYSDIR}/.."
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break
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fi
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done
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fi
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if [ -n "$svnversion" ] ; then
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svn=`cd ${SYSDIR} && $svnversion 2>/dev/null`
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case "$svn" in
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[0-9]*) svn=" r${svn}" ;;
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*) unset svn ;;
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esac
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fi
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if [ -n "$git_cmd" ] ; then
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git=`$git_cmd rev-parse --verify --short HEAD 2>/dev/null`
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svn=`$git_cmd svn find-rev $git 2>/dev/null`
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if [ -n "$svn" ] ; then
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svn=" r${svn}"
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git="=${git}"
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else
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svn=`$git_cmd log | fgrep 'git-svn-id:' | head -1 | \
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sed -n 's/^.*@\([0-9][0-9]*\).*$/\1/p'`
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if [ -z "$svn" ] ; then
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svn=`$git_cmd log --format='format:%N' | \
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grep '^svn ' | head -1 | \
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sed -n 's/^.*revision=\([0-9][0-9]*\).*$/\1/p'`
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fi
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if [ -n "$svn" ] ; then
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svn=" r${svn}"
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git="+${git}"
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else
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git=" ${git}"
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fi
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fi
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git_b=`$git_cmd rev-parse --abbrev-ref HEAD`
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if [ -n "$git_b" ] ; then
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git="${git}(${git_b})"
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fi
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if $git_cmd --work-tree=${SYSDIR}/.. diff-index \
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--name-only HEAD | read dummy; then
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git="${git}-dirty"
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fi
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fi
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if [ -n "$p4_cmd" ] ; then
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p4version=`cd ${SYSDIR} && $p4_cmd changes -m1 "./...#have" 2>&1 | \
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awk '{ print $2 }'`
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case "$p4version" in
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[0-9]*)
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p4version=" ${p4version}"
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p4opened=`cd ${SYSDIR} && $p4_cmd opened ./... 2>&1`
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case "$p4opened" in
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File*) ;;
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//*) p4version="${p4version}+edit" ;;
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esac
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;;
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*) unset p4version ;;
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esac
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fi
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if [ -n "$hg_cmd" ] ; then
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hg=`$hg_cmd id 2>/dev/null`
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svn=`$hg_cmd svn info 2>/dev/null | \
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awk -F': ' '/Revision/ { print $2 }'`
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if [ -n "$svn" ] ; then
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svn=" r${svn}"
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fi
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if [ -n "$hg" ] ; then
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hg=" ${hg}"
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fi
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fi
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cat << EOF > vers.c
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$COPYRIGHT
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#define SCCSSTR "@(#)${VERSION} #${v}${svn}${git}${hg}${p4version}: ${t}"
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#define VERSTR "${VERSION} #${v}${svn}${git}${hg}${p4version}: ${t}\\n ${u}@${h}:${d}\\n"
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#define RELSTR "${RELEASE}"
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char sccs[sizeof(SCCSSTR) > 128 ? sizeof(SCCSSTR) : 128] = SCCSSTR;
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char version[sizeof(VERSTR) > 256 ? sizeof(VERSTR) : 256] = VERSTR;
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char compiler_version[] = "${compiler_v}";
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char ostype[] = "${TYPE}";
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char osrelease[sizeof(RELSTR) > 32 ? sizeof(RELSTR) : 32] = RELSTR;
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int osreldate = ${RELDATE};
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char kern_ident[] = "${i}";
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EOF
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echo $((v + 1)) > version
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