mirror of
https://github.com/SerenityOS/serenity
synced 2024-07-09 05:00:46 +00:00
357 lines
11 KiB
Bash
Executable File
357 lines
11 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -eo pipefail
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# === CONFIGURATION AND SETUP ===
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DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
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# shellcheck source=/dev/null
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. "${DIR}/../Meta/shell_include.sh"
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exit_if_running_as_root "Do not run BuildClang.sh as root, parts of your Toolchain directory will become root-owned"
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echo "$DIR"
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PREFIX="$DIR/Local/clang/"
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BUILD="$DIR/../Build/"
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USERLAND_ARCHS="x86_64"
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ARCHS="$USERLAND_ARCHS aarch64 riscv64"
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MD5SUM="md5sum"
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REALPATH="realpath"
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INSTALL="install"
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SED="sed"
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SYSTEM_NAME="$(uname -s)"
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if [ "$SYSTEM_NAME" = "OpenBSD" ]; then
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MD5SUM="md5 -q"
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REALPATH="readlink -f"
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export CC=egcc
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export CXX=eg++
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export LDFLAGS=-Wl,-z,notext
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elif [ "$SYSTEM_NAME" = "FreeBSD" ]; then
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MD5SUM="md5 -q"
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elif [ "$SYSTEM_NAME" = "Darwin" ]; then
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MD5SUM="md5 -q"
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REALPATH="grealpath" # GNU coreutils
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INSTALL="ginstall" # GNU coreutils
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fi
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NPROC=$(get_number_of_processing_units)
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[ -z "$MAKEJOBS" ] && MAKEJOBS=${NPROC}
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if [ ! -d "$BUILD" ]; then
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mkdir -p "$BUILD"
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fi
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BUILD=$($REALPATH "$BUILD")
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dev=
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ci=
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while [ "$1" != "" ]; do
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case $1 in
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--dev ) dev=1
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;;
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--ci ) ci=1
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;;
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esac
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shift
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done
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if [ "$dev" = "1" ] && [ "$ci" = "1" ]; then
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echo "Please only set one of --dev or --ci."
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exit 1
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fi
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echo PREFIX is "$PREFIX"
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mkdir -p "$DIR/Tarballs"
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LLVM_VERSION="16.0.6"
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LLVM_MD5SUM="dc13938a604f70379d3b38d09031de98"
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LLVM_NAME="llvm-project-$LLVM_VERSION.src"
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LLVM_PKG="$LLVM_NAME.tar.xz"
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LLVM_URL="https://github.com/llvm/llvm-project/releases/download/llvmorg-$LLVM_VERSION/$LLVM_PKG"
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buildstep() {
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NAME=$1
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shift
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"$@" 2>&1 | "$SED" $'s|^|\e[34m['"${NAME}"$']\e[39m |'
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}
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buildstep_ninja() {
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# When ninja writes to a pipe, it strips ANSI escape codes and prints one line per buildstep.
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# Instead, use NINJA_STATUS so that we get colored output from LLVM's build and fewer lines of output when running in a tty.
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# ANSI escape codes in NINJA_STATUS are slightly janky (ninja thinks that "\e[34m" needs 5 output characters instead of 5, so
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# its middle elision is slightly off; also it would happily elide the "\e39m" which messes up the output if the terminal is too
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# narrow), but it's still working better than the alternative.
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NAME=$1
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shift
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env NINJA_STATUS=$'\e[34m['"${NAME}"$']\e[39m [%f/%t] ' "$@"
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}
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# === DEPENDENCIES ===
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buildstep dependencies echo "Checking whether Ninja is available..."
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if ! command -v ninja >/dev/null; then
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buildstep dependencies echo "Please make sure to install Ninja."
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exit 1
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fi
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buildstep dependencies echo "Checking whether CMake is available..."
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if ! command -v cmake >/dev/null; then
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buildstep dependencies echo "Please make sure to install CMake."
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exit 1
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fi
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buildstep dependencies echo "Checking whether 'patch' is available..."
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if ! command -v patch >/dev/null; then
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buildstep dependencies echo "Please make sure to install GNU patch."
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fi
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buildstep dependencies echo "Checking whether your C compiler works..."
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if ! ${CC:-cc} -o /dev/null -xc - >/dev/null <<'PROGRAM'
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int main() {}
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PROGRAM
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then
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buildstep dependencies echo "Please make sure to install a working C compiler."
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exit 1
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fi
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buildstep dependencies echo "Checking whether your C++ compiler works..."
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if ! ${CXX:-c++} -o /dev/null -xc - >/dev/null <<'PROGRAM'
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int main() {}
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PROGRAM
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then
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buildstep dependencies echo "Please make sure to install a working C++ compiler."
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exit 1
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fi
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link_lld=
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buildstep dependencies echo "Checking whether the LLD linker is available..."
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if ${CXX:-c++} -o /dev/null -fuse-ld=lld -xc - >/dev/null 2>/dev/null << 'PROGRAM'
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int main() {}
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PROGRAM
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then
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link_lld=1
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buildstep dependencies echo "Using LLD for linking LLVM."
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else
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buildstep dependencies echo "LLD not found. Using the default linker."
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fi
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buildstep setup echo "Determining if LLVM should be built with -march=native..."
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if [ "$ci" = "1" ]; then
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# The toolchain cache is shared among all runners, which might have different CPUs.
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buildstep setup echo "On a CI runner. Using the default compiler settings."
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elif [ -z "${CFLAGS+x}" ] && [ -z "${CXXFLAGS+x}" ]; then
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if ${CXX:-c++} -o /dev/null -march=native -xc - >/dev/null 2>/dev/null << 'PROGRAM'
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int main() {}
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PROGRAM
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then
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export CFLAGS="-march=native"
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export CXXFLAGS="-march=native"
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buildstep setup echo "Using -march=native for compiling LLVM."
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else
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buildstep setup echo "-march=native is not supported by the compiler. Using the default settings."
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fi
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else
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buildstep setup echo "Using user-provided CFLAGS/CXXFLAGS."
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fi
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# === CHECK CACHE AND REUSE ===
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pushd "$DIR"
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if [ "$TRY_USE_LOCAL_TOOLCHAIN" = "y" ]; then
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mkdir -p Cache
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echo "Cache (before):"
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ls -l Cache
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CACHED_TOOLCHAIN_ARCHIVE="Cache/ToolchainBinariesGithubActions.tar.gz"
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if [ -r "${CACHED_TOOLCHAIN_ARCHIVE}" ] ; then
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echo "Cache at ${CACHED_TOOLCHAIN_ARCHIVE} exists!"
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echo "Extracting toolchain from cache:"
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if tar xzf "${CACHED_TOOLCHAIN_ARCHIVE}" ; then
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echo "Done 'building' the toolchain."
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echo "Cache unchanged."
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exit 0
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else
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echo
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echo
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echo
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echo "Could not extract cached toolchain archive."
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echo "This means the cache is broken and *should be removed*!"
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echo "As Github Actions cannot update a cache, this will unnecessarily"
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echo "slow down all future builds for this hash, until someone"
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echo "resets the cache."
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echo
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echo
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echo
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rm -f "${CACHED_TOOLCHAIN_ARCHIVE}"
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fi
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else
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echo "Cache at ${CACHED_TOOLCHAIN_ARCHIVE} does not exist."
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echo "Will rebuild toolchain from scratch, and save the result."
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fi
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fi
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echo "::group::Actually building Toolchain"
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popd
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# === DOWNLOAD AND PATCH ===
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pushd "$DIR/Tarballs"
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md5=""
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if [ -e "$LLVM_PKG" ]; then
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md5="$($MD5SUM ${LLVM_PKG} | cut -f1 -d' ')"
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echo "llvm md5='$md5'"
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fi
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if [ "$md5" != "$LLVM_MD5SUM" ] ; then
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rm -f "$LLVM_PKG"
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curl -LO "$LLVM_URL"
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else
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echo "Skipped downloading LLVM"
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fi
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patch_md5="$($MD5SUM "$DIR"/Patches/llvm/*.patch)"
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if [ ! -d "$LLVM_NAME" ] || [ "$(cat $LLVM_NAME/.patch.applied)" != "$patch_md5" ]; then
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if [ -d "$LLVM_NAME" ]; then
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# Drop the previously patched extracted dir
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rm -rf "${LLVM_NAME}"
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fi
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rm -rf "$DIR/Build/clang"
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echo "Extracting LLVM..."
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tar -xJf "$LLVM_PKG"
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pushd "$LLVM_NAME"
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if [ "$dev" = "1" ]; then
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git init > /dev/null
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git add . > /dev/null
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git commit -am "BASE" > /dev/null
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git am --keep-non-patch "$DIR"/Patches/llvm/*.patch > /dev/null
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else
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for patch in "$DIR"/Patches/llvm/*.patch; do
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patch -p1 < "$patch" > /dev/null
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done
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fi
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echo "$patch_md5" > .patch.applied
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popd
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else
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echo "Using existing LLVM source directory"
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fi
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popd
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# === COPY HEADERS ===
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SRC_ROOT=$($REALPATH "$DIR"/..)
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FILES=$(find \
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"$SRC_ROOT"/Kernel/API \
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"$SRC_ROOT"/Kernel/Arch \
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"$SRC_ROOT"/Userland/Libraries/LibC \
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"$SRC_ROOT"/Userland/Libraries/LibELF/ELFABI.h \
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"$SRC_ROOT"/Userland/Libraries/LibRegex/RegexDefs.h \
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-name '*.h' -print)
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for arch in $ARCHS; do
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mkdir -p "$BUILD/${arch}clang"
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pushd "$BUILD/${arch}clang"
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mkdir -p Root/usr/include/
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for header in $FILES; do
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target=$(echo "$header" | "$SED" \
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-e "s|$SRC_ROOT/Kernel/|Kernel/|" \
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-e "s|$SRC_ROOT/Userland/Libraries/LibC||" \
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-e "s|$SRC_ROOT/Userland/Libraries/LibELF/|LibELF/|" \
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-e "s|$SRC_ROOT/Userland/Libraries/LibRegex/|LibRegex/|")
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buildstep "system_headers" "$INSTALL" -D "$header" "Root/usr/include/$target"
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done
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popd
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done
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unset SRC_ROOT
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# === COPY LIBRARY STUBS ===
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for arch in $USERLAND_ARCHS; do
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pushd "$BUILD/${arch}clang"
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mkdir -p Root/usr/lib/
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for lib in "$DIR/Stubs/${arch}clang/"*".so"; do
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lib_name=$(basename "$lib")
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[ ! -f "Root/usr/lib/${lib_name}" ] && cp "$lib" "Root/usr/lib/${lib_name}"
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done
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popd
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done
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# === COMPILE AND INSTALL ===
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rm -rf "$PREFIX"
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mkdir -p "$PREFIX"
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mkdir -p "$DIR/Build/clang"
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pushd "$DIR/Build/clang"
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mkdir -p llvm
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pushd llvm
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buildstep "llvm/configure" cmake "$DIR/Tarballs/$LLVM_NAME/llvm" \
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-G Ninja \
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-DSERENITY_x86_64-pc-serenity_SYSROOT="$BUILD/x86_64clang/Root" \
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-DSERENITY_aarch64-pc-serenity_SYSROOT="$BUILD/aarch64clang/Root" \
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-DSERENITY_riscv64-pc-serenity_SYSROOT="$BUILD/riscv64clang/Root" \
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-DCMAKE_INSTALL_PREFIX="$PREFIX" \
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-DSERENITY_MODULE_PATH="$DIR/CMake" \
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-C "$DIR/CMake/LLVMConfig.cmake" \
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${link_lld:+"-DLLVM_ENABLE_LLD=ON"} \
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${dev:+"-DLLVM_CCACHE_BUILD=ON"} \
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${ci:+"-DLLVM_CCACHE_BUILD=ON"} \
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${ci:+"-DLLVM_CCACHE_DIR=$LLVM_CCACHE_DIR"} \
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${ci:+"-DLLVM_CCACHE_MAXSIZE=$LLVM_CCACHE_MAXSIZE"}
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buildstep_ninja "llvm/build" ninja -j "$MAKEJOBS"
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buildstep_ninja "llvm/install" ninja install/strip
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popd
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for arch in $ARCHS; do
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mkdir -p runtimes/"$arch"
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pushd runtimes/"$arch"
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buildstep "runtimes/$arch/configure" cmake "$DIR/Tarballs/$LLVM_NAME/runtimes" \
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-G Ninja \
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-DSERENITY_TOOLCHAIN_ARCH="$arch" \
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-DSERENITY_TOOLCHAIN_ROOT="$PREFIX" \
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-DSERENITY_BUILD_DIR="$BUILD/${arch}clang/" \
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-DSERENITY_MODULE_PATH="$DIR/CMake" \
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-DCMAKE_INSTALL_PREFIX="$PREFIX" \
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-C "$DIR/CMake/LLVMRuntimesConfig.cmake"
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buildstep_ninja "runtimes/$arch/build" ninja -j "$MAKEJOBS"
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buildstep_ninja "runtimes/$arch/install" ninja install
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popd
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done
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popd
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pushd "$DIR/Local/clang/bin/"
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ln -s ../../mold/bin/mold ld.mold
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for arch in $ARCHS; do
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ln -s clang "$arch"-pc-serenity-clang
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ln -s clang++ "$arch"-pc-serenity-clang++
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ln -s llvm-nm "$arch"-pc-serenity-nm
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echo "--sysroot=$BUILD/${arch}clang/Root" > "$arch"-pc-serenity.cfg
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done
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popd
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# === SAVE TO CACHE ===
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pushd "$DIR"
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if [ "$TRY_USE_LOCAL_TOOLCHAIN" = "y" ]; then
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echo "::endgroup::"
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echo "Building cache tar:"
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echo "Building cache tar:"
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rm -f "${CACHED_TOOLCHAIN_ARCHIVE}" # Just in case
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tar czf "${CACHED_TOOLCHAIN_ARCHIVE}" Local/
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echo "Cache (after):"
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ls -l Cache
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fi
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popd
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