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|
#!/bin/bash
set -euf -o pipefail
scripts=$(dirname $0)
# shellcheck source=jenkins-helpers.sh
. $scripts/jenkins-helpers.sh
# shellcheck source=round-robin.sh
. $scripts/round-robin.sh
convert_args_to_variables "$@"
obligatory_variables rr[ci_project] rr[ci_config]
declare -A rr
# tcwg_aosp-code_size-{aosp_modules}
IFS=- read -a ci_project <<EOF
${rr[ci_project]}
EOF
aosp_modules=("${aosp_modules[@]-${ci_project[2]}}")
# {aosp_target}-{aosp_ver}
IFS=- read -a ci_config <<EOF
${rr[ci_config]}
EOF
aosp_target="${aosp_target-${ci_config[0]}}"
# Execution mode: build or bisect
rr[mode]="${rr[mode]-build}"
# Set custom revision for one of the projects, and use baseline revisions
# for all other projects.
rr[baseline_branch]="${rr[baseline_branch]-linaro-local/ci/${rr[ci_project]}/${rr[ci_config]}}"
rr[update_baseline]="${rr[update_baseline]-ignore}"
rr[top_artifacts]="${rr[top_artifacts]-$(pwd)/artifacts}"
rr[components]="aosp_superproject llvm toolchain_superproject"
# Use baseline branches by default.
for c in ${rr[components]}; do
rr[${c}_git]=${rr[${c}_git]-baseline}
done
start_at="${start_at-default}"
finish_at="${finish_at-default}"
verbose="${verbose-true}"
verbose2="${verbose2-false}"
if $verbose2; then set -x; fi
trap print_traceback EXIT
# Set start and finish steps for different modes.
default_start_at=""
default_finish_at=""
case "${rr[mode]}" in
"bisect")
case "$(print_single_updated_component)" in
toolchain_superproject) default_start_at="build_aosp_toolchain" ;;
llvm) default_start_at="build_shadow_llvm" ;;
aosp_superproject) default_start_at="build_aosp" ;;
*) assert false ;;
esac
;;
esac
if [ x"$start_at" = x"default" ]; then
start_at="$default_start_at"
fi
if [ x"$finish_at" = x"default" ]; then
finish_at="$default_finish_at"
fi
run_step_init "$start_at" "$finish_at" "${rr[top_artifacts]}" "$verbose"
# Clone AOSP repo
clone_aosp ()
{
(
set -euf -o pipefail
local dir="$1"
local superproject_rev="$2"
local supermanifest="$3"
mkdir -p "$dir"
cd "$dir"
# Remove locks from previous runs
find .repo -type f -name "shallow.lock" -delete || true
# Clean AOSP checkout
.repo/repo/repo forall -c "git reset --hard; git clean -fdx" \
>/dev/null &
if ! wait $!; then
# Wipe AOSP checkout on clean errors
cd ..
rm -rf "$dir"
mkdir "$dir"
cd "$dir"
fi
# Resync on superproject change
if ! [ -f repo_synced ] \
|| [ x"$(cat repo_synced)" != x"$superproject_rev" ]; then
rm -f repo_synced
local manifest_url manifest_branch manifest_rev
# Add a newline after supermanifest file to avoid "read" exiting with
# "1" due to EOF.
read manifest_url manifest_branch manifest_rev \
< <(cat "$supermanifest"; echo)
manifest_url="https://android.googlesource.com/$manifest_url"
rm -rf ./.repo/repo
repo init --partial-clone --clone-filter=blob:limit=10M \
--use-superproject -u "$manifest_url" -b "$manifest_branch"
# Use manifest specified in superproject. We then use --nmu option
# to "repo sync" to avoid manifest update.
git -C .repo/manifests fetch "$manifest_url" "$manifest_rev"
git -C .repo/manifests checkout FETCH_HEAD
# FIXME:
# Repo doesn't [yet] support fetching custom revisions of
# superproject. We workaround that by hacking command line
# for "git fetch branch:branch" to "git fetch SHA1:branch".
# This hack is effective only when we have $manifest_branch
# specified in "repo init", so don't remove "-b" option in "repo init".
sed -i -e "s#\[self._branch + \":\" + self._branch\]#\['$superproject_rev' + \":\" + self._branch\]#" ./.repo/repo/git_superproject.py
./.repo/repo/repo sync --nmu -j"$(nproc --all)" -q &
if ! wait $!; then
./.repo/repo/repo sync --nmu -j1 --fail-fast
fi
# FIXME:
# Verify that "repo sync" fetched the desired revision of superproject.
local super_git super_rev
super_git=$(find ./.repo/exp-superproject/ -name "*-superproject.git")
super_rev=$(git -C "$super_git" rev-parse "$manifest_branch")
assert_with_msg "Could not hack superproject repo" \
[ "$super_rev" = "$superproject_rev" ]
echo "$superproject_rev" > repo_synced
fi
)
}
# Build AOSP's LLVM
build_aosp_toolchain ()
{
(
set -euf -o pipefail
clone_repo toolchain_superproject
clone_aosp llvm-toolchain "$(get_current_git toolchain_superproject_rev)" \
"$(pwd)/toolchain_superproject/.supermanifest"
cd llvm-toolchain
assert_with_msg "Missing repo_synced file" [ -f repo_synced ]
# Check if sources were updated and rebuild AOSP toolchain on re-syncs.
if [ -f out/stage2/cmake_invocation.sh ] \
&& [ out/stage2/cmake_invocation.sh -ot repo_synced ]; then
# Re-generate cmake recipe
rm out/stage2/cmake_invocation.sh
fi
# Reproduce AOSP toolchain to get the cmake recipe
if ! [ -f out/stage2/cmake_invocation.sh ]; then
rm -rf out
local tf_loc
tf_loc="$(pip show tensorflow | grep Location | cut -d' ' -f2)" || true
[ -d "$tf_loc" ] && export TENSORFLOW_INSTALL="$tf_loc/tensorflow"
python toolchain/llvm_android/build.py --no-build lldb,windows \
--skip-runtimes --skip-tests --skip-package --mlgo
fi
)
}
# Build LLVM
build_shadow_llvm ()
{
(
set -euf -o pipefail
clone_repo llvm
cd llvm-toolchain
local cc cxx ninja
cc=$(cat out/stage2/cmake_invocation.sh \
| grep -e " -DCMAKE_C_COMPILER=" \
| sed -e "s/.* -DCMAKE_C_COMPILER=\([^ ]*\).*/\1/")
cxx=$(cat out/stage2/cmake_invocation.sh \
| grep -e " -DCMAKE_CXX_COMPILER=" \
| sed -e "s/.* -DCMAKE_CXX_COMPILER=\([^ ]*\).*/\1/")
ninja=$(cat out/stage2/cmake_invocation.sh \
| grep -e " -DCMAKE_MAKE_PROGRAM=" \
| sed -e "s/.* -DCMAKE_MAKE_PROGRAM=\([^ ]*\).*/\1/")
cd ..
local workspace
workspace=$(pwd)
# ${workspace:?}/bin is to avoid shellcheck warning that below never
# expands to "rm -rf /bin"
rm -rf "${workspace:?}/bin"
mkdir "$workspace/bin"
cat > "$workspace/bin/cc" <<EOF
#!/bin/sh
CCACHE_BASEDIR=$workspace exec ccache $cc "\$@"
EOF
chmod +x "$workspace/bin/cc"
cat > "$workspace/bin/c++" <<EOF
#!/bin/sh
CCACHE_BASEDIR=$workspace exec ccache $cxx "\$@"
EOF
chmod +x "$workspace/bin/c++"
rm -rf llvm-install
cd llvm-toolchain/out
cp stage2/cmake_invocation.sh ./
sed -i \
-e "s#/llvm-toolchain/out/llvm-project/llvm #/llvm/llvm #" \
-e "s#/llvm-toolchain/out/stage2-install #/llvm-install #" \
-e "s# -DCMAKE_C_COMPILER=[^ ]* # -DCMAKE_C_COMPILER=$workspace/bin/cc #" \
-e "s# -DCMAKE_CXX_COMPILER=[^ ]* # -DCMAKE_CXX_COMPILER=$workspace/bin/c++ #" \
cmake_invocation.sh
ccache -z
rm -rf stage3
mkdir stage3
cd stage3
set +e
source ../cmake_invocation.sh
local res=$?
set -e
if [ $res != 0 ] || ! $ninja; then
# Attempt to workaround failures in past LLVM versions.
cd ..
# Workaround failures to find BOLT, which seems to be unused anyway.
sed -i -e "s/bolt;//" cmake_invocation.sh
# Workaround failure to link x86_64's libc++.so against non-PIC
# libc++abi.a. Add -fPIC to x86_64 runtime's CFLAGS.
sed -i -e "s/ '-DRUNTIMES_x86_64-unknown-linux-gnu_CMAKE_C_FLAGS=/ '-DRUNTIMES_x86_64-unknown-linux-gnu_CMAKE_C_FLAGS=-fPIC /g" \
cmake_invocation.sh
sed -i -e "s/ '-DRUNTIMES_x86_64-unknown-linux-gnu_CMAKE_CXX_FLAGS=/ '-DRUNTIMES_x86_64-unknown-linux-gnu_CMAKE_CXX_FLAGS=-fPIC /g" \
cmake_invocation.sh
rm -rf stage3
mkdir stage3
cd stage3
source ../cmake_invocation.sh
$ninja
fi
$ninja install
ccache -s
)
}
# Build AOSP
build_aosp ()
{
(
set -euf -o pipefail
# Clone AOSP superproject
clone_repo aosp_superproject
# Clone AOSP
clone_aosp aosp "$(get_current_git aosp_superproject_rev)" \
"$(pwd)/aosp_superproject/.supermanifest"
# Remove old binaries
(set +f; rm -rf shadow*)
rm -rf aosp/out
# Install build wrappers
local prebuilts_clang_bin
while read -r prebuilts_clang_bin; do
$scripts/wrappers/install-wrappers.sh \
$prebuilts_clang_bin llvm-install/bin aosp shadow
done < <(find aosp/prebuilts/clang/host/linux-x86/ \
-maxdepth 2 -name "bin" -type d)
$scripts/wrappers/install-wrappers.sh \
aosp/build/soong/scripts llvm-install/bin aosp shadow strip.sh
# Build AOSP
(
cd aosp
set -e +ufx +o pipefail
local release=trunk_staging
source build/envsetup.sh
echo "RUN: lunch aosp_${aosp_target}-${release}-user"
lunch "aosp_${aosp_target}-${release}-user"
echo "RUN: m ${aosp_modules[*]}"
if [ x"${aosp_modules[*]}" = x"aosp" ]; then
m
else
m "${aosp_modules[@]}"
fi
)
)
}
# Check shadow build
process_shadow_data ()
{
(
set -euf -o pipefail
local success_code="$2"
if ! [ -f shadow.errors ]; then
success_code=$(($success_code + 1))
echo "# shadow build has no errors" >> $run_step_top_artifacts/results
echo "$success_code" >> $run_step_top_artifacts/results
else
echo "# shadow build has errors" >> $run_step_top_artifacts/results
cp shadow.errors $run_step_top_artifacts/
exit 1
fi
if [ -f shadow.size ]; then
cp shadow.size $run_step_top_artifacts/size.csv
success_code=$(($success_code + 1))
echo "# shadow.size present" >> $run_step_top_artifacts/results
echo "$success_code" >> $run_step_top_artifacts/results
fi
)
}
# Exit with code 0 if no regression compared to base-artifacts/results.
no_regression_p ()
{
(
set -euf -o pipefail
no_build_regression_p "$@"
if ! [ -f base-artifacts/size.csv ]; then
return 0
elif ! [ -f $run_step_top_artifacts/size.csv ]; then
return 1
fi
# Generate results-vs-prev/results.csv
mkdir -p $run_step_top_artifacts/results-vs-prev
$scripts/../bmk-scripts/csvs2table.py \
--relative "$(pwd)/base-artifacts/size.csv" \
$run_step_top_artifacts/size.csv \
> $run_step_top_artifacts/results-vs-prev/results.csv
# Read result lines from <(tail -n +2 ...) below.
# "-n +2" is to skip the header line.
local -a arr
local rel_text text1 text2 metric total1=0 total2=0
while IFS=, read -a arr; do
binary=${arr[0]}
rel_text=${arr[2]}
text1=${arr[3]}
text2=${arr[4]}
if [ x"$rel_text" = x"n/a" ]; then
case "$text1":"$text2" in
"-1:-1") ;;
"-1":*)
echo "-1,$binary now builds successfully" \
>> $run_step_artifacts/binary.improvements
;;
*:"-1")
echo "1,$binary now fails to build" \
>> $run_step_artifacts/binary.regressions
;;
esac
continue
fi
metric=$(($rel_text - 100))
if [ $metric -lt 0 ]; then
echo "$metric,$binary reduced in size by ${metric}% from $text1 to $text2" \
>> $run_step_artifacts/binary.improvements
elif [ $metric -gt 0 ]; then
echo "$metric,$binary increased in size by ${metric}% from $text1 to $text2" \
>> $run_step_artifacts/binary.regressions
fi
total1=$(($total1 + $text1))
total2=$(($total2 + $text2))
done < <(tail -n +2 $run_step_top_artifacts/results-vs-prev/results.csv)
if [ $total1 != 0 ]; then
metric=$(((100 * $total2) / $total1 - 100))
else
# Corner case when baseline results have no intersection with
# the current results. This happens when AOSP build fails and
# size.csv only has the header.
metric=0
fi
if [ $metric -lt 0 ]; then
echo "$metric,AOSP reduced in size by ${metric}% from $total1 to $total2" \
>> $run_step_artifacts/aosp.improvements
elif [ $metric -gt 0 ]; then
echo "$metric,AOSP increased in size by ${metric}% from $total1 to $total2" \
>> $run_step_artifacts/aosp.regressions
fi
local primary_change="" regression=false
if [ -f $run_step_artifacts/aosp.regressions ]; then
primary_change=$run_step_artifacts/aosp.regressions
regression=true
elif [ -f $run_step_artifacts/binary.regressions ]; then
primary_change=$run_step_artifacts/binary.regressions
regression=true
elif [ -f $run_step_artifacts/aosp.improvements ]; then
primary_change=$run_step_artifacts/aosp.improvements
elif [ -f $run_step_artifacts/binary.improvements ]; then
primary_change=$run_step_artifacts/binary.improvements
fi
if [ x"$primary_change" != x"" ]; then
sort -gr -o "$primary_change" "$primary_change"
if $regression; then
head -n1 "$primary_change" \
| sed -e "s/^/# /" > $run_step_artifacts/results.regressions
fi
fi
case "${rr[ci_project]}" in
"tcwg_aosp-build"*)
# We have passed no_build_regression_p() check above,
# so succeed.
return 0
;;
esac
local -a changed_components
IFS=" " read -r -a changed_components <<< "$(print_changed_components)"
case " ${changed_components[*]} " in
*" llvm "*) ;;
*)
# Code-size builds without changed LLVM we declare as
# non-regressing. Code-size changes are due to changes in AOSP,
# not in the compiler.
return 0
;;
esac
if $regression; then
return 1
fi
return 0
)
}
rr[breakup_changed_components]="breakup_changed_components llvm"
case "${rr[ci_project]}" in
"tcwg_aosp-build"*)
run_step stop_on_fail 0 reset_artifacts
run_step skip_on_fail 1 build_aosp_toolchain
run_step skip_on_fail 2 build_shadow_llvm
run_step skip_on_fail 3 build_aosp
run_step skip_on_fail x process_shadow_data -- 3
;;
*)
run_step stop_on_fail -10 reset_artifacts
run_step skip_on_fail -3 build_aosp_toolchain
run_step skip_on_fail -2 build_shadow_llvm
run_step skip_on_fail -1 build_aosp
run_step skip_on_fail x process_shadow_data -- -1
;;
esac
run_step reset_on_fail x check_regression
trap "" EXIT
|