util/genbuild_h/genbuild_h.sh

   1 #!/usr/bin/env sh
   2 #
   3 # SPDX-License-Identifier: GPL-2.0-only
   4
   5 DATE=""
   6 GITREV=""
   7 TIMESOURCE=""
   8 XGCCPATH="${XGCCPATH:-util/crossgcc/xgcc/bin/}"
   9 MAJOR_VER="0"
  10 MINOR_VER="0"
  11 COREBOOT_VERSION_FILE=".coreboot-version"
  12
  13 export LANG=C
  14 export LC_ALL=C
  15 export TZ=UTC0
  16
  17 XCOMPILE=$1
  18
  19 if [ -z "${XCOMPILE}" ] || [ "$1" = "--help" ]; then
  20         echo "usage: $0 <xcompile>" >&2
  21         exit 1
  22 fi
  23
  24 # $1: format string
  25 get_git_head_data() {
  26         LANG="" git log --no-show-signature --abbrev=12 -1 --format="format:$1" 2>/dev/null || \
  27         LANG="" git log --abbrev=12 -1 --format="format:$1"
  28 }
  29
  30 if [ "${BUILD_TIMELESS}" = "1" ]; then
  31         GITREV=Timeless
  32         TIMESOURCE="fixed"
  33         DATE=0
  34 elif [ "$(git rev-parse --is-inside-work-tree 2>/dev/null)" = "true" ]; then
  35         GITREV="$(get_git_head_data %h)"
  36         TIMESOURCE=git
  37         DATE="$(get_git_head_data %ct)"
  38         VERSION="$(git describe)"
  39         # Only use the `git describe` output if the tag is in the expected <major>.<minor>
  40         # format, e.g. 4.18. Forks of coreboot may have other tags in different formats.
  41         if echo "${VERSION}" | grep -q "^[0-9]\.[0-9][0-9]*"; then
  42                 MAJOR_VER="$(echo "${VERSION}" | sed 's/\([0-9]\)\.\([0-9][0-9]*\).*/\1/')"
  43                 MINOR_VER="$(echo "${VERSION}" | sed 's/\([0-9]\)\.\([0-9][0-9]*\).*/\2/')"
  44         fi
  45 else
  46         GITREV=Unknown
  47         TIMESOURCE="date"
  48         DATE=$(LANG="" LC_ALL=C TZ=UTC0 date +%s)
  49         if [ -f "${COREBOOT_VERSION_FILE}" ]; then
  50                 MAJOR_VER="$(sed 's/\([0-9]\)\.\([0-9][0-9]*\).*/\1/' "${COREBOOT_VERSION_FILE}")"
  51                 MINOR_VER="$(sed 's/\([0-9]\)\.\([0-9][0-9]*\).*/\2/' "${COREBOOT_VERSION_FILE}")"
  52         fi
  53 fi
  54
  55 our_date() {
  56 case $(uname) in
  57 NetBSD|OpenBSD|DragonFly|FreeBSD|Darwin)
  58         date -r "$1" "$2"
  59         ;;
  60 *)
  61         date -d "@$1" "$2"
  62 esac
  63 }
  64
  65 # Look for IASL in XGCCPATH and xcompile.  Unfortunately,
  66 # xcompile isn't available on the first build.
  67 # If neither of those gives a valid iasl, check the path.
  68 IASL="${XGCCPATH}iasl"
  69 eval "$(grep ^IASL:= "${XCOMPILE}" 2>/dev/null | sed s,:=,=,)"
  70 if [ ! -x "${IASL}" ]; then
  71         IASL=$(command -v iasl)
  72 fi
  73 IASLVERSION="$("${IASL}" -v 2>/dev/null | grep version | sed 's/.*version //')"
  74
  75 #Print out the information that goes into build.h
  76 printf "/* build system definitions (autogenerated) */\n"
  77 printf "#ifndef __BUILD_H\n"
  78 printf "#define __BUILD_H\n\n"
  79 printf "#define COREBOOT_VERSION %s\n" "\"${KERNELVERSION}\""
  80
  81 #See if the build is running in a git repo and the git command is available
  82 printf "/* timesource: %s */\n" "${TIMESOURCE}"
  83 printf "#define COREBOOT_VERSION_TIMESTAMP %s\n" "${DATE}"
  84 printf "#define COREBOOT_ORIGIN_GIT_REVISION \"%s\"\n" "${GITREV}"
  85
  86 printf "#define COREBOOT_EXTRA_VERSION \"%s\"\n" "${COREBOOT_EXTRA_VERSION}"
  87 printf "#define COREBOOT_MAJOR_VERSION %s\n" "${MAJOR_VER}"
  88 printf "#define COREBOOT_MINOR_VERSION %s\n" "${MINOR_VER}"
  89 printf "#define COREBOOT_BUILD \"%s\"\n" "$(our_date "${DATE}" "+%a %b %d %H:%M:%S %Z %Y")"
  90 printf "#define COREBOOT_BUILD_YEAR_BCD 0x%s\n" "$(our_date "${DATE}" "+%y")"
  91 printf "#define COREBOOT_BUILD_MONTH_BCD 0x%s\n" "$(our_date "${DATE}" "+%m")"
  92 printf "#define COREBOOT_BUILD_DAY_BCD 0x%s\n" "$(our_date "${DATE}" "+%d")"
  93 printf "#define COREBOOT_BUILD_WEEKDAY_BCD 0x%s\n" "$(our_date "${DATE}" "+%w")"
  94 printf "#define COREBOOT_BUILD_EPOCH \"%s\"\n" "$(our_date "${DATE}" "+%s")"
  95 printf "#define COREBOOT_DMI_DATE \"%s\"\n" "$(our_date "${DATE}" "+%m/%d/%Y")"
  96 printf "\n"
  97 printf "#define COREBOOT_COMPILE_TIME \"%s\"\n" "$(our_date "${DATE}" "+%T")"
  98 printf "#define ASL_VERSION 0x%s\n" "${IASLVERSION}"
  99 printf "#endif\n"