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Add build scripts
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‎src/build.sh‎

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#!/bin/sh
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set -e
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export TMPDIR="$PWD/tmp"
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rm -rf "$TMPDIR"
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mkdir -p "$TMPDIR"
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if [ "$1" = debug ]; then
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out=out/Debug
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flags="
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is_debug=true
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is_component_build=true"
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else
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out=out/Release
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flags="
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is_official_build=true
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exclude_unwind_tables=true
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enable_resource_allowlist_generation=false
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symbol_level=0"
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fi
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. ./get-sysroot.sh
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# ccache
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case "$host_os" in
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linux|mac)
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if which ccache >/dev/null 2>&1; then
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export CCACHE_SLOPPINESS=time_macros
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export CCACHE_BASEDIR="$PWD"
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export CCACHE_CPP2=yes
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CCACHE=ccache
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fi
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;;
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win)
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if [ -f "$HOME"/.cargo/bin/sccache* ]; then
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export PATH="$PATH:$HOME/.cargo/bin"
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CCACHE=sccache
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fi
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;;
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esac
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if [ "$CCACHE" ]; then
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flags="$flags
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cc_wrapper=\"$CCACHE\""
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fi
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flags="$flags"'
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is_clang=true
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use_sysroot=false
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fatal_linker_warnings=false
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treat_warnings_as_errors=false
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is_cronet_build=true
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chrome_pgo_phase=2
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enable_base_tracing=false
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use_udev=false
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use_aura=false
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use_ozone=false
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use_gio=false
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use_platform_icu_alternatives=true
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use_glib=false
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disable_file_support=true
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enable_websockets=false
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use_kerberos=false
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disable_file_support=true
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disable_zstd_filter=false
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enable_mdns=false
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enable_reporting=false
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include_transport_security_state_preload_list=false
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enable_device_bound_sessions=false
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enable_bracketed_proxy_uris=true
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enable_quic_proxy_support=true
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use_nss_certs=false
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enable_backup_ref_ptr_support=false
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enable_dangling_raw_ptr_checks=false
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enable_shadow_metadata=false
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'
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if [ "$WITH_SYSROOT" ]; then
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flags="$flags
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target_sysroot=\"//$WITH_SYSROOT\""
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fi
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if [ "$host_os" = "mac" ]; then
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flags="$flags"'
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enable_dsyms=false'
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fi
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case "$EXTRA_FLAGS" in
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*target_os=\"android\"*)
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# default_min_sdk_version=24: 26 introduces unnecessary snew symbols
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# is_high_end_android=true: Does not optimize for size, Uses PGO profiles
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flags="$flags"'
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default_min_sdk_version=24
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is_high_end_android=true'
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;;
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esac
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# See https://github.com/llvm/llvm-project/issues/86430
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if [ "$target_os" = "linux" -a "$target_cpu" = "x64" ]; then
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flags="$flags"'
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use_cfi_icall=false'
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fi
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rm -rf "./$out"
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mkdir -p out
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export DEPOT_TOOLS_WIN_TOOLCHAIN=0
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./gn/out/gn gen "$out" --args="$flags $EXTRA_FLAGS"
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ninja -C "$out" naive

‎src/get-clang.sh‎

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#!/bin/sh
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set -ex
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. ./get-sysroot.sh
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if [ "$SYSROOT_ARCH" -a ! -d ./"$WITH_SYSROOT/lib" ]; then
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./build/linux/sysroot_scripts/sysroot_creator.py build "$SYSROOT_ARCH"
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fi
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if [ "$OPENWRT_FLAGS" ]; then
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./get-openwrt.sh
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fi
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# Clang
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# See src/tools/clang/scripts/update.py
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case "$host_os" in
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linux) WITH_CLANG=Linux_x64;;
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win) WITH_CLANG=Win;;
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mac) WITH_CLANG=Mac;;
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esac
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if [ "$host_os" = mac -a "$host_cpu" = arm64 ]; then
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WITH_CLANG=Mac_arm64
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fi
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mkdir -p third_party/llvm-build/Release+Asserts
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cd tools/clang/scripts
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CLANG_REVISION=$($PYTHON -c 'import update; print(update.PACKAGE_VERSION)')
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cd -
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echo $CLANG_REVISION >third_party/llvm-build/Release+Asserts/cr_build_revision
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if [ ! -d third_party/llvm-build/Release+Asserts/bin ]; then
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mkdir -p third_party/llvm-build/Release+Asserts
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clang_path="clang-$CLANG_REVISION.tar.xz"
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clang_url="https://commondatastorage.googleapis.com/chromium-browser-clang/$WITH_CLANG/$clang_path"
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curl "$clang_url" | tar xJf - -C third_party/llvm-build/Release+Asserts
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fi
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# sccache
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if [ "$host_os" = win -a ! -f ~/.cargo/bin/sccache.exe ]; then
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sccache_url="https://github.com/mozilla/sccache/releases/download/0.2.12/sccache-0.2.12-x86_64-pc-windows-msvc.tar.gz"
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mkdir -p ~/.cargo/bin
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curl -L "$sccache_url" | tar xzf - --strip=1 -C ~/.cargo/bin
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fi
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# GN
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# See src/DEPS
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case "$host_os" in
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linux) WITH_GN=linux-amd64;;
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win) WITH_GN=windows-amd64;;
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mac) WITH_GN=mac-amd64;;
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esac
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if [ "$host_os" = mac -a "$host_cpu" = arm64 ]; then
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WITH_GN=mac-arm64
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fi
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if [ ! -f gn/out/gn ]; then
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gn_version=$(grep "'gn_version':" DEPS | cut -d"'" -f4)
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mkdir -p gn/out
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curl -L "https://chrome-infra-packages.appspot.com/dl/gn/gn/$WITH_GN/+/$gn_version" -o gn.zip
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unzip gn.zip -d gn/out
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rm gn.zip
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fi
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# See src/build/config/compiler/pgo/BUILD.gn
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case "$target_os" in
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win)
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case "$target_cpu" in
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arm64) WITH_PGO=win-arm64;;
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x64) WITH_PGO=win64;;
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*) WITH_PGO=win32;;
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esac
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;;
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mac)
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case "$target_cpu" in
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arm64) WITH_PGO=mac-arm;;
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*) WITH_PGO=mac;;
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esac
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;;
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linux|openwrt)
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WITH_PGO=linux
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;;
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android)
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case "$target_cpu" in
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arm64) WITH_PGO=android-arm64;;
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*) WITH_PGO=android-arm32;;
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esac
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;;
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esac
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if [ "$WITH_PGO" ]; then
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PGO_PATH=$(cat chrome/build/$WITH_PGO.pgo.txt)
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fi
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if [ "$WITH_PGO" -a ! -f chrome/build/pgo_profiles/"$PGO_PATH" ]; then
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mkdir -p chrome/build/pgo_profiles
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cd chrome/build/pgo_profiles
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curl --limit-rate 10M -LO "https://storage.googleapis.com/chromium-optimization-profiles/pgo_profiles/$PGO_PATH"
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cd ../../..
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fi
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if [ "$target_os" = android -a ! -d third_party/android_toolchain/ndk ]; then
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# https://dl.google.com/android/repository/android-ndk-r25c-linux.zip
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android_ndk_version=$(grep 'default_android_ndk_version = ' build/config/android/config.gni | cut -d'"' -f2)
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curl -LO https://dl.google.com/android/repository/android-ndk-$android_ndk_version-linux.zip
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unzip android-ndk-$android_ndk_version-linux.zip
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mkdir -p third_party/android_toolchain/ndk
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cd android-ndk-$android_ndk_version
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cp -r --parents sources/android/cpufeatures ../third_party/android_toolchain/ndk
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cp -r --parents toolchains/llvm/prebuilt ../third_party/android_toolchain/ndk
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cd ..
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cd third_party/android_toolchain/ndk
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find toolchains -type f -regextype egrep \! -regex \
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'.*(lib(atomic|gcc|gcc_real|compiler_rt-extras|android_support|unwind).a|crt.*o|lib(android|c|dl|log|m).so|usr/local.*|usr/include.*)' -delete
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# Works around https://github.com/android/ndk/issues/2082
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# .../android/hardware_buffer.h:322:42: error: expression is not an integral constant expression
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# 322 | AHARDWAREBUFFER_USAGE_FRONT_BUFFER = 1UL << 32,
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# .../android/hardware_buffer.h:322:46: note: shift count 32 >= width of type 'unsigned long' (32 bits)
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# 322 | AHARDWAREBUFFER_USAGE_FRONT_BUFFER = 1UL << 32,
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sed -i 's/AHARDWAREBUFFER_USAGE_FRONT_BUFFER = 1UL /AHARDWAREBUFFER_USAGE_FRONT_BUFFER = 1ULL /' toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/include/android/hardware_buffer.h
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cd -
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rm -rf android-ndk-$android_ndk_version android-ndk-$android_ndk_version-linux.zip
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fi

‎src/get-openwrt.sh‎

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#!/bin/sh
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set -ex
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eval "$OPENWRT_FLAGS"
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sysroot=$PWD/out/sysroot-build/openwrt/$release/$arch
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if [ -d $sysroot/lib ]; then
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exit 0
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fi
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mkdir -p $sysroot
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case "$arch" in
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arm_*) abi=musl_eabi;;
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*) abi=musl;;
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esac
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major=${release%%.*}
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if [ "$major" -ge 22 ]; then
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path_suffix=toolchain
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else
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path_suffix=sdk
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fi
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if [ "$major" -ge 24 ]; then
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tarball_suffix=zst
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else
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tarball_suffix=xz
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fi
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if [ ! "$subtarget" ]; then
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subtarget=generic
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fi
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if [ "$subtarget" != generic -o "$major" -ge 22 ]; then
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SDK_PATH=openwrt-$path_suffix-$release-$target-${subtarget}_gcc-${gcc_ver}_${abi}.Linux-x86_64
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else
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SDK_PATH=openwrt-$path_suffix-$release-${target}_gcc-${gcc_ver}_${abi}.Linux-x86_64
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fi
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SDK_URL=https://downloads.openwrt.org/releases/$release/targets/$target/$subtarget/$SDK_PATH.tar.$tarball_suffix
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rm -rf $SDK_PATH
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if [ $tarball_suffix = xz ]; then
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curl $SDK_URL | tar xJf -
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elif [ $tarball_suffix = zst ]; then
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curl $SDK_URL | tar --zstd -xf -
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fi
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full_root=toolchain-*_gcc-${gcc_ver}_${abi}
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if [ "$major" -lt 22 ]; then
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mv $SDK_PATH/staging_dir/$full_root $SDK_PATH
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fi
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cd $SDK_PATH
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cat >include.txt <<EOF
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./include
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./lib/*.o
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./lib/gcc/*/libgcc.a
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./lib/gcc/*/libgcc_eh.a
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./lib/libatomic.so*
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./lib/libatomic.a
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./lib/libc.so
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./lib/libc.a
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./lib/libdl.a
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./lib/ld-*
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./lib/libgcc_s.*
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./lib/libm.a
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./lib/libpthread.a
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./lib/libresolv.a
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./lib/librt.a
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./usr
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EOF
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tar cf - -C $full_root --hard-dereference . | tar xf - -C $sysroot --wildcards --wildcards-match-slash -T include.txt
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rm -rf include.txt
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cd ..
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rm -rf $SDK_PATH
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# LLVM does not accept muslgnueabi as the target triple environment
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if [ -d "$sysroot/lib/gcc/arm-openwrt-linux-muslgnueabi" ]; then
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mv "$sysroot/lib/gcc/arm-openwrt-linux-muslgnueabi" "$sysroot/lib/gcc/arm-openwrt-linux-musleabi"
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fi

‎src/get-sysroot.sh‎

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eval "$EXTRA_FLAGS"
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case "$(uname)" in
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MINGW*|MSYS*) host_os=win;;
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Linux) host_os=linux;;
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Darwin) host_os=mac;;
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*) echo "Unsupported host OS" >&2; exit 1;;
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esac
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case "$(uname -m)" in
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x86_64|x64) host_cpu=x64;;
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x86|i386|i686) host_cpu=x86;;
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arm) host_cpu=arm;;
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arm64|aarch64|armv8b|armv8l) host_cpu=arm64;;
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*) echo "Unsupported host CPU" >&2; exit 1;;
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esac
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# See src/build/config/BUILDCONFIG.gn
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if [ ! "$target_os" ]; then
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target_os="$host_os"
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fi
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if [ ! "$target_cpu" ]; then
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target_cpu="$host_cpu"
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fi
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if which python3 >/dev/null 2>/dev/null; then
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PYTHON=python3
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else
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PYTHON=python
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fi
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# sysroot
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case "$target_os" in
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linux)
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case "$target_cpu" in
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x64) SYSROOT_ARCH=amd64;;
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x86) SYSROOT_ARCH=i386;;
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arm64) SYSROOT_ARCH=arm64;;
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arm) SYSROOT_ARCH=armhf;;
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mipsel) SYSROOT_ARCH=mipsel;;
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mips64el) SYSROOT_ARCH=mips64el;;
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riscv64) SYSROOT_ARCH=riscv64;;
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esac
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if [ "$SYSROOT_ARCH" ]; then
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WITH_SYSROOT="out/sysroot-build/bullseye/bullseye_${SYSROOT_ARCH}_staging"
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fi
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# This is the case where running ./build.sh without EXTRA_FLAGS
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# wants to avoid downloading sysroots.
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if [ ! "$EXTRA_FLAGS" -a "$target_cpu" = "$host_cpu" ]; then
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SYSROOT_ARCH=
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WITH_SYSROOT=
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fi
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;;
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openwrt)
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eval "$OPENWRT_FLAGS"
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WITH_SYSROOT="out/sysroot-build/openwrt/$release/$arch"
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;;
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android)
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WITH_SYSROOT=
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# https://dl.google.com/android/repository/sys-img/android/sys-img.xml
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# https://dl.google.com/android/repository/sys-img/google_apis/sys-img.xml
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case "$target_cpu" in
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x64) WITH_ANDROID_IMG=x86_64-24_r08;;
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x86) WITH_ANDROID_IMG=x86-24_r08;;
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arm64) WITH_ANDROID_IMG=arm64-v8a-24_r07;;
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arm) WITH_ANDROID_IMG=armeabi-v7a-24_r07;;
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esac
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;;
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esac

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