15545435eb
- if ${MKREPRO_TIMESTAMP} is used, synthesize all the information, instead
of eliding it.
290 lines
8.8 KiB
Bash
290 lines
8.8 KiB
Bash
#!/bin/sh -
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#
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# $NetBSD: newvers.sh,v 1.62 2017/04/08 18:24:09 christos Exp $
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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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# 3. 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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# newvers.sh -- Create a "vers.c" file containing version information.
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#
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# The "vers.c" file in the current directory is the primary output. It
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# contains C source code with several variables containing information
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# about the build. This file is expected to be incorporated into a
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# kernel, and when that kernel is booted then the information can be
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# queried by the uname(8) command.
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#
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# Command line options:
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#
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# -R Reproducible build: Do not embed directory
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# names, user names, time stamps, or other dynamic
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# information into the output file. This intended
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# to allow two builds done at different times and
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# even by different people on different hosts to
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# produce identical output.
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#
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# -r <timestamp> Reproducible build: Embed fixed information to
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# the output file.
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# This intended to allow two builds done at different
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# times and even by different people on different
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# hosts to produce identical output.
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#
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# -m <machine> Use the specified string as the value of the
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# machine variable
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#
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# -i <id> Use the specified string as the value of the
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# kernel_ident variable
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#
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# -n Do not include an ELF note section in the output
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# file.
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# Environment variables:
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#
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# BUILDID If defined, ${BUILDID} is appended to the
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# default value of the kernel_ident string.
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# (If the -i command line option is used, then
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# BUILDID is not appended.)
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#
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# BUILDINFO A string to be stored in the kernel's buildinfo
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# variable. ${BUILDINFO} may be a multi-line string,
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# and may use C-style backslash escapes.
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# Lines may be separated by either literal newlines
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# or "\n" escape sequences.
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#
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# Output files:
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#
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# vers.c The "vers.c" file in the current directory is
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# the primary output.
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#
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# version The "version" file in the current directory
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# is both an input and an output. See the
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# description under "Input files".
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#
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# Input files:
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#
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# version The "version" file in the current directory
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# contains an integer counter, representing the
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# number of times this script has been executed in
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# this directory, starting with "0" if the file
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# does not exist. The serial number in the file
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# is incremented after the file is read. so that
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# the incremented serial number is an output from
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# the present build and an input to the next build
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# that is performed in the same directory.
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#
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# copyright The "copyright" file (in the same directory as
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# this script itself) contains a copyright notice,
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# which is embedded in the copyright variable in
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# the output file.
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#
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# ident The "ident" file in the current directory is optional.
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# If this file exists, then its contents override the
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# default value of the kernel_ident string.
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#
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# Input from external commands:
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#
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# osrelease.sh This script is expected to print the OS revision.
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# The result is stored in the osrelease variable.
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#
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# FUNCTIONS
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# source_lines [input] --
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#
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# Convert a multi-line string to a format that's suitable for inclusion in
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# C source code. The result should look like this:
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#
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# "first line\n"
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# "second line\n"
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#
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# with <backslash><letter n> inside the quotes for each line,
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# literal quotation marks around each line,
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# and a literal newline separating one line from the next.
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#
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# Input is from "$1" if that is defined, or from stdin if $1 is not defined.
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#
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source_lines()
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{
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if [ -n "${1+set}" ]; then
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printf "%s" "$1"
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else
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cat
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fi \
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| awk '{
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# awk does not care about whether or not the last line
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# of input ends with a newline.
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# Convert <backslash> to <backslash><backslash>.
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gsub("\\\\","\\\\");
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# Convert <quote> to <backslash><quote>
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gsub("\"","\\\"");
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# Add <backslash><letter n> to the end of each line,
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# and wrap each line in double quotes.
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printf("\"%s\\n\"\n", $0);
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}'
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}
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# MAIN PROGRAM
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if [ ! -e version ]; then
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echo 0 > version
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fi
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Rflag=false
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nflag=false
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timestamp=
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pwd=$(pwd)
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while getopts "Rr:m:i:n" OPT; do
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case $OPT in
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R)
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# -R: Reproducible build
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Rflag=true
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;;
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r)
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# -r <timestamp>: timestamp
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timestamp="$OPTARG"
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;;
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m)
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# -m <machine>: machine
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machine="$OPTARG"
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;;
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i)
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# -i <id>: Use the secified string as the
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# value of the kernel_ident variable
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id="$OPTARG"
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;;
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n)
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# -n: Do not include a ELF note section in the output file.
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nflag=true
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;;
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*) echo "Usage: newvers.sh [-Rn] [-r <timestamp>] [-m <machine>] [-i <kernel>]" >&2
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exit 1;;
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esac
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done
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if [ -z "${id}" ]; then
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if [ -f ident ]; then
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id="$(cat ident)"
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else
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id=$(basename "${pwd}")
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fi
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# Append ".${BUILDID}" to the default value of <id>.
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# If the "-i <id>" command line option was used then this
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# branch is not taken, so the command-line value of <id>
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# is used without change.
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if [ -n "${BUILDID}" ]; then
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id="${id}.${BUILDID}"
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fi
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fi
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if ${Rflag}; then
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reproversion=
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else
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if [ -z "${timestamp}" ]; then
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v=$(cat version)
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t=$(LC_ALL=C date)
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u=${USER-root}
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h=$(hostname)
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d=$(pwd)
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# Increment the serial number in the version file
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echo $(expr ${v} + 1) > version
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else
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v=0
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t=$(LC_ALL=C TZ=UTC date -r "${timestamp}")
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u=mkrepro
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h=mkrepro.NetBSD.org
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d="/usr/src/sys/arch/${machine}/compile/${id}"
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fi
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reproversion=" #${v}: ${t}\n\t${u}@${h}:${d}"
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fi
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cwd=$(dirname "$0")
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copyright="$(cat "${cwd}/copyright")"
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osrelcmd=${cwd}/osrelease.sh
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ost="NetBSD"
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osr=$(sh $osrelcmd)
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fullversion="${ost} ${osr} (${id})${reproversion}\n"
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# Convert multi-line strings to C source code.
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# Also add an extra blank line to copyright.
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#
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copyright_source="$(printf "%s\n\n" "${copyright}" | source_lines)"
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fullversion_source="$(printf "%b" "${fullversion}" | source_lines)"
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buildinfo_source="$(printf "%b" "${BUILDINFO}" | source_lines)"
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# work around escaping issues with different shells
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emptyq='""'
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cat << _EOF > vers.c
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/*
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* Automatically generated file from $0
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* Do not edit.
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*/
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#include <sys/cdefs.h>
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/exec.h>
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#include <sys/exec_elf.h>
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const char ostype[] = "${ost}";
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const char osrelease[] = "${osr}";
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const char sccs[] = "@(#)" ${fullversion_source};
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const char version[] = ${fullversion_source};
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const char buildinfo[] = ${buildinfo_source:-${emptyq}};
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const char kernel_ident[] = "${id}";
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const char copyright[] = ${copyright_source};
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_EOF
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${nflag} && exit 0
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cat << _EOF >> vers.c
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/*
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* NetBSD identity note.
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*/
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#ifdef __arm__
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#define _SHT_NOTE %note
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#else
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#define _SHT_NOTE @note
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#endif
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#define _S(TAG) __STRING(TAG)
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__asm(
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".section\t\".note.netbsd.ident\", \"\"," _S(_SHT_NOTE) "\n"
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"\t.p2align\t2\n"
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"\t.long\t" _S(ELF_NOTE_NETBSD_NAMESZ) "\n"
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"\t.long\t" _S(ELF_NOTE_NETBSD_DESCSZ) "\n"
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"\t.long\t" _S(ELF_NOTE_TYPE_NETBSD_TAG) "\n"
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"\t.ascii\t" _S(ELF_NOTE_NETBSD_NAME) "\n"
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"\t.long\t" _S(__NetBSD_Version__) "\n"
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"\t.p2align\t2\n"
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);
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_EOF
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