#!/bin/bash
set -x -e -v
# This script is for building a custom version of chromium-as-release
# First argument must be the artifact name
ARTIFACT_NAME=$(basename $TOOLCHAIN_ARTIFACT)
shift
# Use the rest of the arguments as the build config for gn
CONFIG=$(
echo $* | tr -d
"'")
# Android build flag
IS_ANDROID=false
if [[
"$ARTIFACT_NAME" == *
"android"* ]];
then
IS_ANDROID=true
fi
mkdir custom_car
cd custom_car
CUSTOM_CAR_DIR=$PWD
# Setup depot_tools
git clone
https://chromium.googlesource.com/chromium/tools/depot_tools.git
export PATH=
"$PATH:$CUSTOM_CAR_DIR/depot_tools"
# Bug 1901936 changes to config upstream for depot tools path
if [[ $(uname -s) ==
"Linux" ]];
then
export XDG_CONFIG_HOME=$CUSTOM_CAR_DIR
fi
# Log the current revision of depot tools for easier tracking in the future
DEPOT_TOOLS_REV=$(cd depot_tools && git rev-parse HEAD && cd ..)
echo "Current depot_tools revision: $DEPOT_TOOLS_REV"
# Set up some env variables depending on the target OS
# Linux is the default case, with minor adjustments for
# android since it is built with a linux host
# Final folder structure before compressing is
# the same for linux and windows
FINAL_BIN_PATH=
"src/out/Default"
# Final binary name for autoninja build sequence
FINAL_BIN=chrome
# Unique substring for PGO data for Linux
PGO_SUBSTR=
"chrome-linux-main"
# Default (non android) fetch name for upstream src
FETCH_NAME=chromium
# Android specific vars
if [
"$IS_ANDROID" = true ];
then
FETCH_NAME=android
PGO_SUBSTR=
"android64"
FINAL_BIN_PATH=
"src/out/Default/apks"
FINAL_BIN=chrome_public_apk
fi
# Logic for macosx64
if [[ $(uname -s) ==
"Darwin" ]];
then
export MACOS_SYSROOT=
"$MOZ_FETCHES_DIR/MacOSX26.5.sdk"
CONFIG=$(
echo $CONFIG mac_sdk_path=
'"'$MACOS_SYSROOT
'"')
# Ensure we don't use ARM64 profdata with this unique sub string
PGO_SUBSTR=
"chrome-mac-main"
# Temporary hacky way for now while we build this on intel workers.
# Afterwards we can replace it with a $(uname -m) == "arm64" check.
# Bug 1858740
if [[
"$ARTIFACT_NAME" == *
"macosx_arm"* ]];
then
PGO_SUBSTR=
"chrome-mac-arm-main"
fi
# macOS final build folder is different than linux/win
FINAL_BIN_PATH=
"src/out/Default/Chromium.app"
fi
# Logic for win64 using the mingw environment
if [[ $(uname -o) ==
"Msys" ]];
then
# Setup VS 2022
. $GECKO_PATH/taskcluster/scripts/misc/vs-setup.sh
# Setup some environment variables for chromium build scripts
export DEPOT_TOOLS_WIN_TOOLCHAIN=
0
export GYP_MSVS_OVERRIDE_PATH=
"$MOZ_FETCHES_DIR/VS"
export GYP_MSVS_VERSION=
2026
export vs2026_install=
"$MOZ_FETCHES_DIR/VS"
export WINDOWSSDKDIR=
"$MOZ_FETCHES_DIR/VS/Windows Kits/10"
export DEPOT_TOOLS_UPDATE=
1
export GCLIENT_PY3=
1
# Fool GYP
touch
"$MOZ_FETCHES_DIR/VS/VC/vcvarsall.bat"
# Construct some of our own dirs and move VS dlls + other files
# to a path that chromium build files & scripts are expecting
mkdir chrome_dll
cd chrome_dll
mkdir system32
cd ../
pushd
"$WINDOWSSDKDIR"
mkdir -p Debuggers/x64/
popd
MSVC_REDIST_VERSION=$(ls
"$MOZ_FETCHES_DIR/VS/VC/Redist/MSVC" | grep -E
'^[0-9]' | sort
-V | tail -1)
[[ -n "$MSVC_REDIST_VERSION" ]] || { echo "ERROR: no numeric MSVC redist version found"; exit 1; }
mv "$MOZ_FETCHES_DIR/VS/VC/Redist/MSVC/$MSVC_REDIST_VERSION/x64"/Microsoft.VC*.CRT/* chrome_dll/system32/
mv "$WINDOWSSDKDIR/App Certification Kit/"* "$WINDOWSSDKDIR"/Debuggers/x64/
export WINDIR="$PWD/chrome_dll"
# Run glcient once first to get some windows deps
gclient
# Ensure we don't use WIN32 profdata with this unique sub string
PGO_SUBSTR="chrome-win64-main"
fi
# Get chromium source code and dependencies
mkdir chromium
cd chromium
fetch --no-history --nohooks $FETCH_NAME
# Setup the .gclient file to ensure pgo profiles are downloaded.
# For some reason we need to set --name flag even though it already exists.
# Currently the gclient.py file does NOT recognize --custom-var as it's own argument
gclient config --name src "https://chromium.googlesource.com/chromium/src.git" --custom-var="checkout_pgo_profiles=True" --unmanaged
cd src
# Log the current revision of the chromium src for easier tracking in the future
CHROMIUM_REV=$(git rev-parse HEAD)
echo "Current chromium revision: $CHROMIUM_REV"
# Amend gclient file
if [ "$IS_ANDROID" = true ]; then
echo "target_os = [ 'android' ]" >> ../.gclient
fi
if [[ $(uname -o) == "Msys" ]]; then
# For fast fetches it seems we will be missing some dummy files in windows.
# We can create a dummy this way to satisfy the rest of the build sequence.
# This is ok because we are not doing any development here and don't need
# the development history, but this file is still needed to proceed.
python3 build/util/lastchange.py -o build/util/LASTCHANGE
# Override the SDK version hardcoded upstream to match our fetched Windows SDK.
echo "Using Windows SDK version: ${SDK_VERSION}"
sed -i "s/SDK_VERSION = '[0-9.]*'/SDK_VERSION = '${SDK_VERSION}'/" build/vs_toolchain.py
sed -i "s/SDK_VERSION = '[0-9.]*'/SDK_VERSION = '${SDK_VERSION}'/" build/toolchain/win/setup_toolchain.py
fi
if [[ $(uname -s) == "Linux" ]] || [[ $(uname -s) == "Darwin" ]]; then
# Bug 1847210
# Modifications to how the dirname and depot_tools and other env variables
# change how cipd is setup for Mac and Linux.
# Easily resolved by just running the setup script.
source ./third_party/depot_tools/cipd_bin_setup.sh
cipd_bin_setup
fi
# Sync again for android, after cipd bin setup
if [ "$IS_ANDROID" = true ]; then
gclient sync
fi
# Now we can run hooks and fetch PGO + everything else
gclient runhooks
# PGO data should be in src/chrome/build/pgo_profiles/
# with a name like "chrome-{OS}-<some unique identifier>"
export PGO_DATA_DIR="$CUSTOM_CAR_DIR/chromium/src/chrome/build/pgo_profiles"
for entry in "$PGO_DATA_DIR"/*
do
if [ -f "$entry" ]; then
if [[ "$entry" == *"$PGO_SUBSTR"* ]]; then
echo "Found the correct profdata"
export PGO_DATA_PATH="$entry"
break
fi
fi
done
PGO_FILE=$PGO_DATA_PATH
if [[ $(uname -o) == "Msys" ]]; then
# Compute a relative path that the build scripts looks for.
# This odd pathing seems to only happen on windows
PGO_FILE=${PGO_DATA_PATH#*/*/*/*/*/*/*/*/*/}
mv $PGO_DATA_PATH build/config/compiler/pgo/
fi
CONFIG=$(echo $CONFIG pgo_data_path='"'$PGO_FILE'"')
# Set up then build chrome
if [[ $(uname -s) == "Darwin" ]]; then
# Bug 2045375: build/config/mac/BUILD.gn's sdk_inputs action declares SDK
# files as outputs so RBE remote workers can access them. We don't use RBE,
# and GN rejects the action when mac_sdk_path is outside root_build_dir.
sed -i '' 's/if (use_system_xcode && current_toolchain == default_toolchain)/if (false)/' build/config/mac/BUILD.gn
grep -q 'use_system_xcode && current_toolchain == default_toolchain' build/config/mac/BUILD.gn && \
{ echo "ERROR: sdk_inputs patch failed - upstream BUILD.gn may have changed"; exit 1; }
fi
gn gen out/Default --args="$CONFIG"
autoninja -C out/Default $FINAL_BIN
# Make artifact smaller for win/linux
if [[ $(uname -s) == "Linux" ]] || [[ $(uname -o) == "Msys" ]]; then
if [ "$IS_ANDROID" = false ]; then
rm -rf out/Default/.ninjadeps
rm -rf out/Default/*_deps
rm -rf out/Default/gen/*
rm -rf out/Default/obj/*
rm -rf out/Default/thinlto-cache
rm -rf out/Default/*/gen/*
rm -rf out/Default/*/obj/*
fi
fi
# Gather binary and related files into a zip, and upload it
cd ..
mkdir chromium
mv "$FINAL_BIN_PATH" chromium
chmod -R +x chromium
tar -c chromium | python3 $GECKO_PATH/taskcluster/scripts/misc/zstdpy > $ARTIFACT_NAME
mkdir -p $UPLOAD_DIR
mv "$ARTIFACT_NAME" "$UPLOAD_DIR"
if [ "$IS_ANDROID" = true ]; then
# Package up symbols (lib.unstripped) from android build separately.
SYM_ARTIFACT="car_android_symbols.tar.zst"
SYM_DIR="src/out/Default/lib.unstripped"
tar -C "$(dirname "$SYM_DIR")" -c "$(basename "$SYM_DIR")" \
| python3 "$GECKO_PATH/taskcluster/scripts/misc/zstdpy" > "$SYM_ARTIFACT"
mv "$SYM_ARTIFACT" "$UPLOAD_DIR"
fi