llvm-project/libcxx/utils/docker/scripts/build_llvm_version.sh

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#!/usr/bin/env bash
#===- libcxx/utils/docker/scripts/build_install_llvm_version_default.sh -----------------------===//
#
# Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
# See https://llvm.org/LICENSE.txt for license information.
# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#
#===-------------------------------------------------------------------------------------------===//
set -e
function show_usage() {
cat << EOF
Usage: build_install_llvm.sh [options] -- [cmake-args]
Run cmake with the specified arguments. Used inside docker container.
Passes additional -DCMAKE_INSTALL_PREFIX and puts the build results into
the directory specified by --to option.
Available options:
-h|--help show this help message
--install destination directory where to install the targets.
--branch the branch or tag of LLVM to build
Required options: --install, and --version.
All options after '--' are passed to CMake invocation.
EOF
}
LLVM_BRANCH=""
CMAKE_ARGS=""
LLVM_INSTALL_DIR=""
while [[ $# -gt 0 ]]; do
case "$1" in
--install)
shift
LLVM_INSTALL_DIR="$1"
shift
;;
--branch)
shift
LLVM_BRANCH="$1"
shift
;;
--)
shift
CMAKE_ARGS="$*"
shift $#
;;
-h|--help)
show_usage
exit 0
;;
*)
echo "Unknown option: $1"
exit 1
esac
done
if [ "$LLVM_INSTALL_DIR" == "" ]; then
echo "No install directory. Please specify the --install argument."
exit 1
fi
if [ "$LLVM_BRANCH" == "" ]; then
echo "No install directory. Please specify the --branch argument."
exit 1
fi
if [ "$CMAKE_ARGS" == "" ]; then
CMAKE_ARGS="-DCMAKE_BUILD_TYPE=RELEASE '-DCMAKE_C_FLAGS=-gline-tables-only' '-DCMAKE_CXX_FLAGS=-gline-tables-only' -DLLVM_ENABLE_ASSERTIONS=ON -DLLVM_INSTALL_TOOLCHAIN_ONLY=ON"
fi
set -x
TMP_ROOT="$(mktemp -d -p /tmp)"
LLVM_SOURCE_DIR="$TMP_ROOT/llvm-project"
LLVM_BUILD_DIR="$TMP_ROOT/build"
LLVM="$LLVM_SOURCE_DIR/llvm"
git clone --branch $LLVM_BRANCH --single-branch --depth=1 https://github.com/llvm/llvm-project.git $LLVM_SOURCE_DIR
pushd "$LLVM_SOURCE_DIR"
# Setup the source-tree using the old style layout
ln -s $LLVM_SOURCE_DIR/libcxx $LLVM/projects/libcxx
ln -s $LLVM_SOURCE_DIR/libcxxabi $LLVM/projects/libcxxabi
ln -s $LLVM_SOURCE_DIR/compiler-rt $LLVM/projects/compiler-rt
ln -s $LLVM_SOURCE_DIR/clang $LLVM/tools/clang
ln -s $LLVM_SOURCE_DIR/clang-tools-extra $LLVM/tools/clang/tools/extra
popd
# Configure and build
mkdir "$LLVM_BUILD_DIR"
pushd "$LLVM_BUILD_DIR"
cmake -GNinja "-DCMAKE_INSTALL_PREFIX=$LLVM_INSTALL_DIR" $CMAKE_ARGS $LLVM
ninja install
popd
# Cleanup
rm -rf "$TMP_ROOT/"
echo "Done"