1 #!/bin/sh - 2 # 3 # $NetBSD: newvers.sh,v 1.64 2024/05/01 14:52:01 christos Exp $ 4 # 5 # Copyright (c) 1984, 1986, 1990, 1993 6 # The Regents of the University of California. All rights reserved. 7 # 8 # Redistribution and use in source and binary forms, with or without 9 # modification, are permitted provided that the following conditions 10 # are met: 11 # 1. Redistributions of source code must retain the above copyright 12 # notice, this list of conditions and the following disclaimer. 13 # 2. Redistributions in binary form must reproduce the above copyright 14 # notice, this list of conditions and the following disclaimer in the 15 # documentation and/or other materials provided with the distribution. 16 # 3. Neither the name of the University nor the names of its contributors 17 # may be used to endorse or promote products derived from this software 18 # without specific prior written permission. 19 # 20 # THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 # ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 # SUCH DAMAGE. 31 # 32 # @(#)newvers.sh 8.1 (Berkeley) 4/20/94 33 34 # newvers.sh -- Create a "vers.c" file containing version information. 35 # 36 # The "vers.c" file in the current directory is the primary output. It 37 # contains C source code with several variables containing information 38 # about the build. This file is expected to be incorporated into a 39 # kernel, and when that kernel is booted then the information can be 40 # queried by the uname(8) command. 41 # 42 # Command line options: 43 # 44 # -R Reproducible build: Do not embed directory 45 # names, user names, time stamps, or other dynamic 46 # information into the output file. This intended 47 # to allow two builds done at different times and 48 # even by different people on different hosts to 49 # produce identical output. 50 # 51 # -r <timestamp> Reproducible build: Embed fixed information to 52 # the output file. 53 # This intended to allow two builds done at different 54 # times and even by different people on different 55 # hosts to produce identical output. 56 # 57 # -m <machine> Use the specified string as the value of the 58 # machine variable 59 # 60 # -i <id> Use the specified string as the value of the 61 # kernel_ident variable 62 # 63 # -n Do not include an ELF note section in the output 64 # file. 65 # Environment variables: 66 # 67 # BUILDID If defined, ${BUILDID} is appended to the 68 # default value of the kernel_ident string. 69 # (If the -i command line option is used, then 70 # BUILDID is not appended.) 71 # 72 # BUILDINFO A string to be stored in the kernel's buildinfo 73 # variable. ${BUILDINFO} may be a multi-line string, 74 # and may use C-style backslash escapes. 75 # Lines may be separated by either literal newlines 76 # or "\n" escape sequences. 77 # 78 # Output files: 79 # 80 # vers.c The "vers.c" file in the current directory is 81 # the primary output. 82 # 83 # version The "version" file in the current directory 84 # is both an input and an output. See the 85 # description under "Input files". 86 # 87 # Input files: 88 # 89 # version The "version" file in the current directory 90 # contains an integer counter, representing the 91 # number of times this script has been executed in 92 # this directory, starting with "0" if the file 93 # does not exist. The serial number in the file 94 # is incremented after the file is read. so that 95 # the incremented serial number is an output from 96 # the present build and an input to the next build 97 # that is performed in the same directory. 98 # 99 # copyright The "copyright" file (in the same directory as 100 # this script itself) contains a copyright notice, 101 # which is embedded in the copyright variable in 102 # the output file. 103 # 104 # ident The "ident" file in the current directory is optional. 105 # If this file exists, then its contents override the 106 # default value of the kernel_ident string. 107 # 108 # Input from external commands: 109 # 110 # osrelease.sh This script is expected to print the OS revision. 111 # The result is stored in the osrelease variable. 112 # 113 114 # FUNCTIONS 115 116 # source_lines [input] -- 117 # 118 # Convert a multi-line string to a format that's suitable for inclusion in 119 # C source code. The result should look like this: 120 # 121 # "first line\n" 122 # "second line\n" 123 # 124 # with <backslash><letter n> inside the quotes for each line, 125 # literal quotation marks around each line, 126 # and a literal newline separating one line from the next. 127 # 128 # Input is from "$1" if that is defined, or from stdin if $1 is not defined. 129 # 130 source_lines() 131 { 132 if [ -n "${1+set}" ]; then 133 printf "%s" "$1" 134 else 135 cat 136 fi \ 137 | "${AWK}" '{ 138 # awk does not care about whether or not the last line 139 # of input ends with a newline. 140 # Convert <backslash> to <backslash><backslash>. 141 gsub("\\\\","\\\\"); 142 # Convert <quote> to <backslash><quote> 143 gsub("\"","\\\""); 144 # Add <backslash><letter n> to the end of each line, 145 # and wrap each line in double quotes. 146 printf("\"%s\\n\"\n", $0); 147 }' 148 } 149 150 # MAIN PROGRAM 151 152 if [ ! -e version ]; then 153 echo 0 > version 154 fi 155 156 DATE=${TOOL_DATE:-date} 157 AWK=${TOOL_AWK:-awk} 158 Rflag=false 159 nflag=false 160 timestamp= 161 pwd=$(pwd) 162 163 while getopts "Rr:m:i:n" OPT; do 164 case $OPT in 165 R) 166 # -R: Reproducible build 167 Rflag=true 168 ;; 169 r) 170 # -r <timestamp>: timestamp 171 timestamp="$OPTARG" 172 ;; 173 m) 174 # -m <machine>: machine 175 machine="$OPTARG" 176 ;; 177 i) 178 # -i <id>: Use the secified string as the 179 # value of the kernel_ident variable 180 id="$OPTARG" 181 ;; 182 n) 183 # -n: Do not include a ELF note section in the output file. 184 nflag=true 185 ;; 186 *) echo "Usage: newvers.sh [-Rn] [-r <timestamp>] [-m <machine>] [-i <kernel>]" >&2 187 exit 1;; 188 esac 189 done 190 191 if [ -z "${id}" ]; then 192 if [ -f ident ]; then 193 id="$(cat ident)" 194 else 195 id=$(basename "${pwd}") 196 fi 197 # Append ".${BUILDID}" to the default value of <id>. 198 # If the "-i <id>" command line option was used then this 199 # branch is not taken, so the command-line value of <id> 200 # is used without change. 201 if [ -n "${BUILDID}" ]; then 202 id="${id}.${BUILDID}" 203 fi 204 fi 205 206 if ${Rflag}; then 207 reproversion= 208 else 209 if [ -z "${timestamp}" ]; then 210 v=$(cat version) 211 t=$(LC_ALL=C ${DATE}) 212 u=${USER-root} 213 h=$(hostname) 214 d=$(pwd) 215 # Increment the serial number in the version file 216 echo $(expr ${v} + 1) > version 217 else 218 v=0 219 t=$(LC_ALL=C TZ=UTC ${DATE} -r "${timestamp}") 220 u=mkrepro 221 h=mkrepro.NetBSD.org 222 d="/usr/src/sys/arch/${machine}/compile/${id}" 223 fi 224 reproversion=" #${v}: ${t}\n\t${u}@${h}:${d}" 225 fi 226 227 cwd=$(dirname "$0") 228 copyright="$(cat "${cwd}/copyright")" 229 osrelcmd=${cwd}/osrelease.sh 230 231 ost="NetBSD" 232 osr=$(sh $osrelcmd) 233 234 fullversion="${ost} ${osr} (${id})${reproversion}\n" 235 236 # Convert multi-line strings to C source code. 237 # Also add an extra blank line to copyright. 238 # 239 copyright_source="$(printf "%s\n\n" "${copyright}" | source_lines)" 240 fullversion_source="$(printf "%b" "${fullversion}" | source_lines)" 241 buildinfo_source="$(printf "%b" "${BUILDINFO}" | source_lines)" 242 243 # work around escaping issues with different shells 244 emptyq='""' 245 246 cat << _EOF > vers.c 247 /* 248 * Automatically generated file from $0 249 * Do not edit. 250 */ 251 #include <sys/cdefs.h> 252 #include <sys/types.h> 253 #include <sys/param.h> 254 #include <sys/exec.h> 255 #include <sys/exec_elf.h> 256 257 const char ostype[] = "${ost}"; 258 const char osrelease[] = "${osr}"; 259 const char sccs[] = "@(#)" ${fullversion_source}; 260 const char version[] = ${fullversion_source}; 261 const char buildinfo[] = ${buildinfo_source:-${emptyq}}; 262 const char kernel_ident[] = "${id}"; 263 const char copyright[] = ${copyright_source}; 264 _EOF 265 266 ${nflag} && exit 0 267 268 cat << _EOF >> vers.c 269 270 /* 271 * NetBSD identity note. 272 */ 273 #ifdef __arm__ 274 #define _SHT_NOTE %note 275 #else 276 #define _SHT_NOTE @note 277 #endif 278 279 #define _S(TAG) __STRING(TAG) 280 __asm( 281 ".section\t\".note.netbsd.ident\", \"\"," _S(_SHT_NOTE) "\n" 282 "\t.p2align\t2\n" 283 "\t.long\t" _S(ELF_NOTE_NETBSD_NAMESZ) "\n" 284 "\t.long\t" _S(ELF_NOTE_NETBSD_DESCSZ) "\n" 285 "\t.long\t" _S(ELF_NOTE_TYPE_NETBSD_TAG) "\n" 286 "\t.ascii\t" _S(ELF_NOTE_NETBSD_NAME) "\n" 287 "\t.long\t" _S(__NetBSD_Version__) "\n" 288 "\t.p2align\t2\n" 289 ); 290 291 _EOF 292
Indexes created Sun Oct 12 09:09:55 GMT 2025