This script performs build testing, by building several configurations several times. The script is introduced to improve the consistency of testing changes in the kernel configuration.
This version build randconfig 9 times, as well as allyesconfig, allnoconfig and allmodconfig. Depending on the used machine and system setup, the script might take a while to finish. The script logs all the used config files, as well as the output of the build commands to a log directory "build_check_logs", so that this data can be retrieved after running the script. Signed-off-by: Norbert Manthey <[email protected]> --- scripts/check_build.sh | 136 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 136 insertions(+) create mode 100755 scripts/check_build.sh diff --git a/scripts/check_build.sh b/scripts/check_build.sh new file mode 100755 index 0000000..a100d99 --- /dev/null +++ b/scripts/check_build.sh @@ -0,0 +1,136 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 +# +# Check whether kernel changes compile with multiple configurations. +# Configurations that fail for the current commit are tested on an upstream +# commit, and failures are ignored in case the configuration fails on the +# upstream commit as well. +# +# Usage: +# ./scripts/check_build.sh [upstream-commit] +# +# Example: +# ./scripts/check_build.sh origin/master + +# Fail early on error or uninitialized values +set -e -u + +# Write all files to this directory +declare -r LOG_DIR=build_check_logs + +# Gather all configurations we should build, in form of make targets +collect_configurations () +{ + local CONFIGS="randconfig allyesconfig allnoconfig allmodconfig" + local -i I=0 + + while [ "$I" -le 8 ]; do I=$((I+1)); CONFIGS+=" randconfig"; done + + echo "$CONFIGS" +} + +# Build the kernel with the current configuration, return the status, log to $1 +build () +{ + local -r LOG_FILE="$1" + local -i STATUS=0 + + make clean -j $(nproc) &> /dev/null + make -j $(nproc) &>> "$LOG_FILE" || STATUS=$? + + echo "build status: $STATUS" >> "$LOG_FILE" + echo "[$SECONDS] build status: $STATUS" + return "$STATUS" +} + +# Check whether we're executing from a clean repository, and proper location +check_environment() +{ + local -r UPSTREAM_COMMIT="$1" + + if [ ! -x scripts/check_build.sh ]; then + echo "error: please execute script from repository root!" + exit 1 + fi + + if ! git diff-index --quiet HEAD --; then + echo "error: please commit or stash your local changes!" + exit 1 + fi + + if ! git cat-file -e "$UPSTREAM_COMMIT" &> /dev/null; then + echo "error: upstream commit $UPSTREAM_COMMIT does not exist!" + exit 1 + fi +} + +TEST_COMMIT=$(git rev-parse --short HEAD) + +LAST_TAG=$(git describe --abbrev=0) +DEFAULT_UPSTREAM="origin/master" +[ -z "$LAST_TAG" ] || DEFAULT_UPSTREAM="$LAST_TAG" +UPSTREAM_COMMIT="${1:-$DEFAULT_UPSTREAM}" + +# Before starting, check call location and git environment +check_environment "$UPSTREAM_COMMIT" + +# Collect status, as well as failing configuration file names +declare -i OVERALL_STATUS=0 +mkdir -p "$LOG_DIR" +BRANCH_FAILS="" +UPSTREAM_FAILS="" + +# Build multiple configurations +declare -i COUNT=0 +declare -r CONFIGS=$(collect_configurations) +echo "[$SECONDS] Check commit $TEST_COMMIT with upstream reference $UPSTREAM_COMMIT" +for config in $CONFIGS +do + COUNT=$((COUNT+1)) + echo "[$SECONDS] build $config as build nr $COUNT" + LOG_FILE=$LOG_DIR/build-"$COUNT"-"$config".log + + # Prepare configuration, and memorize it + STATUS=0 + make "$config" &> "$LOG_FILE" || STATUS=$? + cp .config $LOG_DIR/config-"$COUNT"-"$config" + + # Try to build with current configuration + build "$LOG_FILE" || STATUS=$? + + # Evaluate build failure + if [ "$STATUS" -ne 0 ] + then + cp .config "$LOG_DIR"/config-failing-branch-"$COUNT"-"$config" + echo "[$SECONDS] check whether current configuration fails upstream as well ..." + echo "[$SECONDS] go back in time to commit $UPSTREAM_COMMIT" + + # Check whether upstream commit builds + git checkout "$UPSTREAM_COMMIT" &>> "$LOG_FILE" + UPSTREAM_STATUS=0 + build "$LOG_FILE" || UPSTREAM_STATUS=$? + git checkout "$TEST_COMMIT" &>> "$LOG_FILE" + + if [ "$UPSTREAM_STATUS" -ne 0 ] + then + echo "[$SECONDS] upstream build fails as well, ignore failure" + cp .config "$LOG_DIR"/config-failing-upstream-"$COUNT"-"$config" + UPSTREAM_FAILS+=" config-$COUNT-$config" + else + echo "[$SECONDS] upstream build succeeds, while branch build fails" + BRANCH_FAILS+=" config-$COUNT-$config" + OVERALL_STATUS=1 + fi + + echo "[$SECONDS] jump back to commit under test, $TEST_COMMIT" + fi +done + +# Print summary, and exit with status of local changes +echo "Finished after $SECONDS seconds" +echo "Found upstream failures: $UPSTREAM_FAILS" +echo "Found branch failures: $BRANCH_FAILS" +echo "Collected configurations and logs can be found in $LOG_DIR" + +# Exit 0, if no build fails, or the upstream commit always fails as well +exit $OVERALL_STATUS -- 2.7.4 Amazon Development Center Germany GmbH Berlin - Dresden - Aachen main office: Krausenstr. 38, 10117 Berlin Geschaeftsfuehrer: Dr. Ralf Herbrich, Christian Schlaeger Ust-ID: DE289237879 Eingetragen am Amtsgericht Charlottenburg HRB 149173 B
