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5d138b379d
We have been using the time of compilation to determine the
version string. This CL will keep doing that if the git repo has
uncommitted changes, but if the repo is clean we'll just use the
author date of the last commit. This ensures that the same source
will produce bitwise-identical builds (assuming no toolchain
changes, of course).
BUG=chrome-os-partner:45616
BRANCH=none
TEST=manual
cd src/platform/ec
make buildall
mv build build.one
make buildall
md5sum build{,.one}/*/ec.bin | sort
Observe that successive builds produce identical binaries.
Change-Id: Ie2ef44b216586097589c9c15f12e05c87a53f991
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/302140
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Reviewed-by: Shawn N <shawnn@chromium.org>
65 lines
2.0 KiB
Bash
Executable File
65 lines
2.0 KiB
Bash
Executable File
#!/bin/bash
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#
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# Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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#
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# Generate version information for the EC binary
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if ghash=`git rev-parse --short --verify HEAD 2>/dev/null`; then
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if gdesc=`git describe --dirty --match='v*' 2>/dev/null`; then
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IFS="-" fields=($gdesc)
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tag="${fields[0]}"
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IFS="." vernum=($tag)
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numcommits=$((${vernum[2]}+${fields[1]:-0}))
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ver_major="${vernum[0]}"
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ver_branch="${vernum[1]}"
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else
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numcommits=`git rev-list HEAD | wc -l`
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ver_major="v0"
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ver_branch="0"
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fi
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# avoid putting the -dirty attribute if only the timestamp
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# changed
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git status > /dev/null 2>&1
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dirty=`sh -c "[ '$(git diff-index --name-only HEAD)' ] && echo '-dirty'"`
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vbase="${ver_major}.${ver_branch}.${numcommits}-${ghash}${dirty}"
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else
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# Fall back to the VCSID provided by the packaging system if available.
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if ghash=${VCSID##*-}; then
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vbase="1.1.9999-${ghash:0:7}"
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else
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# then ultimately fails to "no_version"
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vbase="no_version"
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fi
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fi
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ver="${BOARD}_${vbase}"
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echo "/* This file is generated by util/getversion.sh */"
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echo "/* Version string for use by common/version.c */"
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echo "#ifdef SHIFT_CODE_FOR_TEST"
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echo "#define CROS_EC_VERSION \"${ver}_shift\""
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echo "#else"
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echo "#define CROS_EC_VERSION \"${ver}\""
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echo "#endif"
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echo "/* Version string, truncated to 31 chars (+ terminating null = 32) */"
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echo "#define CROS_EC_VERSION32 \"${ver:0:31}\""
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echo "/* Sub-fields for use in Makefile.rules and to form build info string"
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echo " * in common/version.c. */"
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echo "#define VERSION \"${ver}\""
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echo "#define BUILDER \"${USER}@`hostname`\""
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if [ -n "$dirty" ]; then
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echo "/* Repo is dirty, using time of last compilation */"
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echo "#define DATE \"$(date '+%F %T')\""
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else
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echo "/* Repo is clean, use the author date of the last commit */"
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gitdate=$(git log -1 --format='%ai' HEAD | cut -d ' ' -f '1 2')
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echo "#define DATE \"${gitdate}\""
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fi
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