ladybird/Toolchain/BuildIt.sh
2020-05-20 16:24:26 +02:00

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#!/usr/bin/env bash
set -e
shopt -s globstar
# This file will need to be run in bash, for now.
# === CONFIGURATION AND SETUP ===
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
echo "$DIR"
ARCH=${ARCH:-"i686"}
TARGET="$ARCH-pc-serenity"
PREFIX="$DIR/Local"
BUILD=$(realpath "$DIR/../Build")
SYSROOT="$BUILD/Root"
MAKE="make"
MD5SUM="md5sum"
NPROC="nproc"
# Each cache entry is 260 MB. 8 entries are 4 GiB.
# It seems that Travis starts having trouble at 35 entries, so I think this is a good amount.
KEEP_CACHE_COUNT=8
if [ "$(uname -s)" = "OpenBSD" ]; then
MAKE=gmake
MD5SUM="md5 -q"
NPROC="sysctl -n hw.ncpuonline"
export CC=egcc
export CXX=eg++
export with_gmp=/usr/local
export LDFLAGS=-Wl,-z,notext
elif [ "$(uname -s)" = "FreeBSD" ]; then
MAKE=gmake
MD5SUM="md5 -q"
NPROC="sysctl -n hw.ncpu"
fi
git_patch=
while [ "$1" != "" ]; do
case $1 in
--dev ) git_patch=1
;;
esac
shift
done
echo PREFIX is "$PREFIX"
echo SYSROOT is "$SYSROOT"
mkdir -p "$DIR/Tarballs"
BINUTILS_VERSION="2.33.1"
BINUTILS_MD5SUM="1a6b16bcc926e312633fcc3fae14ba0a"
BINUTILS_NAME="binutils-$BINUTILS_VERSION"
BINUTILS_PKG="${BINUTILS_NAME}.tar.gz"
BINUTILS_BASE_URL="http://ftp.gnu.org/gnu/binutils"
GCC_VERSION="10.1.0"
GCC_MD5SUM="8a9fbd7e24d04c5d36e96bc894d3cd6b"
GCC_NAME="gcc-$GCC_VERSION"
GCC_PKG="${GCC_NAME}.tar.gz"
GCC_BASE_URL="http://ftp.gnu.org/gnu/gcc"
# === CHECK CACHE AND REUSE ===
pushd "$DIR"
if [ "${TRY_USE_LOCAL_TOOLCHAIN}" = "y" ] ; then
echo "Checking cached toolchain:"
DEPS_CONFIG="
uname=$(uname),TARGET=${TARGET},
BuildItHash=$($MD5SUM $(basename $0)),
MAKE=${MAKE},MD5SUM=${MD5SUM},NPROC=${NPROC},
CC=${CC},CXX=${CXX},with_gmp=${with_gmp},LDFLAGS=${LDFLAGS},
BINUTILS_VERSION=${BINUTILS_VERSION},BINUTILS_MD5SUM=${BINUTILS_MD5SUM},
GCC_VERSION=${GCC_VERSION},GCC_MD5SUM=${GCC_MD5SUM}"
echo "Config is:${DEPS_CONFIG}"
if ! DEPS_HASH=$("$DIR/ComputeDependenciesHash.sh" "$MD5SUM" <<<"${DEPS_CONFIG}"); then
echo "Dependency hashing failed"
echo "Will rebuild toolchain from scratch, and NOT SAVE THE RESULT."
echo "Someone should look into this, but for now it'll work, albeit inefficient."
# Should be empty anyway, but just to make sure:
DEPS_HASH=""
elif [ -r "Cache/ToolchainLocal_${DEPS_HASH}.tar.gz" ] ; then
echo "Cache at Cache/ToolchainLocal_${DEPS_HASH}.tar.gz exists!"
echo "Extracting toolchain from cache:"
tar xzf "Cache/ToolchainLocal_${DEPS_HASH}.tar.gz"
echo "Done 'building' the toolchain."
exit 0
else
echo "Cache at Cache/ToolchainLocal_${DEPS_HASH}.tar.gz does not exist."
echo "Will rebuild toolchain from scratch, and save the result."
echo "But first, getting rid of old, outdated caches. Current caches:"
pushd "Cache/"
ls -l
# Travis preserves timestamps. Don't ask me why, but it does.
# We can exploit this to get an easy approximation of recent-ness.
# Our purging algorithm is simple: keep only the newest X entries.
ls -t | tail "-n+${KEEP_CACHE_COUNT}" | xargs -r rm -v
echo "After deletion:"
ls -l
popd
fi
fi
popd
# === DOWNLOAD AND PATCH ===
pushd "$DIR/Tarballs"
md5="$($MD5SUM $BINUTILS_PKG | cut -f1 -d' ')"
echo "bu md5='$md5'"
if [ ! -e $BINUTILS_PKG ] || [ "$md5" != ${BINUTILS_MD5SUM} ] ; then
rm -f $BINUTILS_PKG
wget "$BINUTILS_BASE_URL/$BINUTILS_PKG"
else
echo "Skipped downloading binutils"
fi
md5="$($MD5SUM ${GCC_PKG} | cut -f1 -d' ')"
echo "gc md5='$md5'"
if [ ! -e $GCC_PKG ] || [ "$md5" != ${GCC_MD5SUM} ] ; then
rm -f $GCC_PKG
wget "$GCC_BASE_URL/$GCC_NAME/$GCC_PKG"
else
echo "Skipped downloading gcc"
fi
if [ ! -d ${BINUTILS_NAME} ]; then
echo "Extracting binutils..."
tar -xzf ${BINUTILS_PKG}
pushd ${BINUTILS_NAME}
if [ "$git_patch" = "1" ]; then
git init > /dev/null
git add . > /dev/null
git commit -am "BASE" > /dev/null
git apply "$DIR"/Patches/binutils.patch > /dev/null
else
patch -p1 < "$DIR"/Patches/binutils.patch > /dev/null
fi
popd
else
echo "Skipped extracting binutils"
fi
if [ ! -d $GCC_NAME ]; then
echo "Extracting gcc..."
tar -xzf $GCC_PKG
pushd $GCC_NAME
if [ "$git_patch" = "1" ]; then
git init > /dev/null
git add . > /dev/null
git commit -am "BASE" > /dev/null
git apply "$DIR"/Patches/gcc.patch > /dev/null
else
patch -p1 < "$DIR/Patches/gcc.patch" > /dev/null
fi
popd
else
echo "Skipped extracting gcc"
fi
if [ "$(uname)" = "Darwin" ]; then
pushd "gcc-${GCC_VERSION}"
./contrib/download_prerequisites
popd
fi
popd
# === COMPILE AND INSTALL ===
mkdir -p "$PREFIX"
mkdir -p "$DIR/Build/binutils"
mkdir -p "$DIR/Build/gcc"
if [ -z "$MAKEJOBS" ]; then
MAKEJOBS=$($NPROC)
fi
pushd "$DIR/Build/"
unset PKG_CONFIG_LIBDIR # Just in case
pushd binutils
"$DIR"/Tarballs/binutils-2.33.1/configure --prefix="$PREFIX" \
--target="$TARGET" \
--with-sysroot="$SYSROOT" \
--enable-shared \
--disable-nls || exit 1
if [ "$(uname)" = "Darwin" ]; then
# under macOS generated makefiles are not resolving the "intl"
# dependency properly to allow linking its own copy of
# libintl when building with --enable-shared.
"$MAKE" -j "$MAKEJOBS" || true
pushd intl
"$MAKE" all-yes
popd
fi
"$MAKE" -j "$MAKEJOBS" || exit 1
"$MAKE" install || exit 1
popd
pushd gcc
if [ "$(uname -s)" = "OpenBSD" ]; then
perl -pi -e 's/-no-pie/-nopie/g' "$DIR/Tarballs/gcc-$GCC_VERSION/gcc/configure"
fi
"$DIR/Tarballs/gcc-$GCC_VERSION/configure" --prefix="$PREFIX" \
--target="$TARGET" \
--with-sysroot="$SYSROOT" \
--disable-nls \
--with-newlib \
--enable-shared \
--enable-languages=c,c++ || exit 1
echo "XXX build gcc and libgcc"
"$MAKE" -j "$MAKEJOBS" all-gcc all-target-libgcc || exit 1
echo "XXX install gcc and libgcc"
"$MAKE" install-gcc install-target-libgcc || exit 1
echo "XXX serenity libc and libm"
mkdir -p "$BUILD"
pushd "$BUILD"
CXXFLAGS="-DBUILDING_SERENITY_TOOLCHAIN" cmake ..
"$MAKE" LibC
install -D Libraries/LibC/libc.a Libraries/LibM/libm.a Root/usr/lib/
SRC_ROOT=$(realpath "$DIR"/..)
for header in "$SRC_ROOT"/Libraries/Lib{C,M}/**/*.h; do
target=$(echo "$header" | sed -e "s@$SRC_ROOT/Libraries/LibC@@" -e "s@$SRC_ROOT/Libraries/LibM@@")
install -D "$header" "Root/usr/include/$target"
done
unset SRC_ROOT
popd
echo "XXX build libstdc++"
"$MAKE" all-target-libstdc++-v3 || exit 1
echo "XXX install libstdc++"
"$MAKE" install-target-libstdc++-v3 || exit 1
if [ "$(uname -s)" = "OpenBSD" ]; then
cd "$DIR/Local/libexec/gcc/i686-pc-serenity/$GCC_VERSION" && ln -sf liblto_plugin.so.0.0 liblto_plugin.so
fi
popd
popd
# == SAVE TO CACHE ==
pushd "$DIR"
if [ "${TRY_USE_LOCAL_TOOLCHAIN}" = "y" ] ; then
# TODO: Compress with -z. It's factor 3, and costs no time.
echo "Caching toolchain:"
if [ -z "${DEPS_HASH}" ] ; then
echo "NOT SAVED, because hashing failed."
echo "It's computed in the beginning; see there for the error message."
elif [ -e "Cache/ToolchainLocal_${DEPS_HASH}.tar.gz" ] ; then
# Note: This checks for *existence*. Initially we checked for
# *readability*. If Travis borks permissions, there's not much we can do.
echo "Cache exists but was not used?!"
echo "Not touching cache then."
else
mkdir -p Cache/
tar czf "Cache/ToolchainLocal_${DEPS_HASH}.tar.gz" Local/
fi
fi
popd