[build] Add new build_sysroot.sh and peru.yaml
Update the build_sysroot to build an LLVM 11 sysroot, dealing with LLVM's change in structure. Also re-add peru.yaml for getting a pre-built sysroot via peru. See: https://github.com/buildinspace/peru
This commit is contained in:
Justin C. Miller
@@ -1,131 +1,126 @@
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#!/usr/bin/env bash
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#!/bin/bash
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TARGET="x86_64-elf"
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LLVM_BRANCH="release_80"
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set -o errexit
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set -o errtrace
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set -o pipefail
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set -o nounset
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TOOLS="clang lld" # lld libunwind libcxxabi libcxx"
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PROJECTS="compiler-rt libcxxabi libcxx libunwind"
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#RUNTIMES="compiler-rt libcxxabi libcxx libunwind"
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function errmsg () {
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echo "Error: $(caller)"
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echo "Working directory not cleaned up!"
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}
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set -e
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trap errmsg ERR
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README=$(realpath "$(dirname $0)/readme_for_prebuilt_sysroots.md")
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SYSROOT=$(realpath "$(dirname $0)/../sysroot")
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WORK=$(realpath "$(dirname $0)/sysroot")
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mkdir -p "${SYSROOT}"
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mkdir -p "${WORK}"
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LLVM_VERSION=11
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J6_TOOLCHAINS="${J6_TOOLCHAINS:-$(realpath ~/.local/lib/jsix)}"
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CHAIN_NAME="llvm-${LLVM_VERSION}"
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LLVM_BRANCH="release/${LLVM_VERSION}.x"
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export CC=clang
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export CXX=clang++
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SYSROOT="${J6_TOOLCHAINS}/sysroots/${CHAIN_NAME}"
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if [[ ! -d "${WORK}/llvm" ]]; then
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echo "Downloading LLVM..."
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git clone -q \
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--branch "${LLVM_BRANCH}" \
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--depth 1 \
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"https://git.llvm.org/git/llvm.git" "${WORK}/llvm"
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ROOT=$(realpath ${1:-$(mktemp -d "sysroot_build.XXX")})
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OUT="${ROOT}/sysroot"
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echo "Working in ${ROOT}"
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if [ ! -d "${ROOT}/llvm-project" ]; then
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echo "* Downloading LLVM ${LLVM_VERSION}"
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git clone -q --depth 1 \
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--branch "${LLVM_BRANCH}" \
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"https://github.com/llvm/llvm-project" \
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"${ROOT}/llvm-project"
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fi
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for tool in ${TOOLS}; do
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if [[ ! -d "${WORK}/llvm/tools/${tool}" ]]; then
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echo "Downloading ${tool}..."
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git clone -q \
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--branch "${LLVM_BRANCH}" \
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--depth 1 \
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"https://git.llvm.org/git/${tool}.git" "${WORK}/llvm/tools/${tool}"
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fi
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done
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if [[ ! -d "${WORK}/llvm/tools/clang/tools/extra" ]]; then
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echo "Downloading clang-tools-extra..."
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git clone -q \
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--branch "${LLVM_BRANCH}" \
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--depth 1 \
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"https://git.llvm.org/git/clang-tools-extra.git" "${WORK}/llvm/tools/clang/tools/extra"
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if [ -d "${OUT}" ]; then
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rm -rf "${OUT}"
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fi
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mkdir -p "${OUT}"
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for proj in ${PROJECTS}; do
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if [[ ! -d "${WORK}/llvm/projects/${proj}" ]]; then
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echo "Downloading ${proj}..."
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git clone -q \
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--branch "${LLVM_BRANCH}" \
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--depth 1 \
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"https://git.llvm.org/git/${proj}.git" "${WORK}/llvm/projects/${proj}"
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fi
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done
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## Stage1: build an LLVM toolchain that doesn't rely on the host libraries,
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## compiler, runtime, etc.
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for proj in ${RUNTIMES}; do
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if [[ ! -d "${WORK}/llvm/runtimes/${proj}" ]]; then
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echo "Downloading ${proj}..."
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git clone -q \
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--branch "${LLVM_BRANCH}" \
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--depth 1 \
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"https://git.llvm.org/git/${proj}.git" "${WORK}/llvm/runtime/${proj}"
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fi
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done
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mkdir -p "${WORK}/build/llvm"
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pushd "${WORK}/build/llvm"
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echo "Configuring LLVM..."
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echo "* Configuring stage1"
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mkdir -p "${ROOT}/stage1"
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cmake -G Ninja \
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-S "${ROOT}/llvm-project/llvm" \
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-B "${ROOT}/stage1" \
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-DCLANG_DEFAULT_RTLIB=compiler-rt \
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-DCLANG_DEFAULT_STD_C=c11 \
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-DCLANG_DEFAULT_STD_CXX=cxx14 \
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-DCMAKE_BUILD_TYPE=Release \
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-DCMAKE_C_COMPILER="clang" \
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-DCMAKE_C_COMPILER_LAUNCHER=ccache \
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-DCMAKE_CXX_COMPILER="clang++" \
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-DCMAKE_CXX_FLAGS="-Wno-unused-parameter -D_LIBCPP_HAS_NO_ALIGNED_ALLOCATION -D_LIBUNWIND_IS_BAREMETAL=1 -U_LIBUNWIND_SUPPORT_DWARF_UNWIND" \
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-DCMAKE_INSTALL_PREFIX="${SYSROOT}" \
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-DCMAKE_MAKE_PROGRAM=`which ninja` \
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-DDEFAULT_SYSROOT="${SYSROOT}" \
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-DLIBCXX_CXX_ABI=libcxxabi \
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-DLIBCXX_CXX_ABI_INCLUDE_PATHS="${WORK}/llvm/projects/libcxxabi/include" \
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-DLIBCXX_CXX_ABI_LIBRARY_PATH=lib \
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-DLIBCXX_ENABLE_EXPERIMENTAL_LIBRARY=OFF \
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-DLIBCXX_ENABLE_NEW_DELETE_DEFINITIONS=ON \
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-DLIBCXX_ENABLE_SHARED=OFF \
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-DLIBCXX_ENABLE_STATIC_ABI_LIBRARY=ON \
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-DLIBCXX_ENABLE_THREADS=OFF \
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-DLIBCXX_INCLUDE_BENCHMARKS=OFF \
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-DLIBCXX_USE_COMPILER_RT=ON \
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-DLIBCXXABI_ENABLE_NEW_DELETE_DEFINITIONS=OFF \
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-DLIBCXXABI_ENABLE_SHARED=OFF \
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-DLIBCXXABI_ENABLE_STATIC_UNWINDER=ON \
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-DLIBCXXABI_ENABLE_THREADS=OFF \
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-DLIBCXXABI_LIBCXX_PATH="${WORK}/llvm/projects/libcxx" \
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-DCMAKE_CXX_COMPILER_LAUNCHER=ccache \
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-DCMAKE_SHARED_LINKER_FLAGS="-fuse-ld=lld" \
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-DLIBCXXABI_USE_COMPILER_RT=ON \
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-DLIBCXXABI_USE_LLVM_UNWINDER=ON \
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-DLIBUNWIND_ENABLE_SHARED=OFF \
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-DLIBUNWIND_ENABLE_THREADS=OFF \
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-DLIBCXX_CXX_ABI=libcxxabi \
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-DLIBUNWIND_USE_COMPILER_RT=ON \
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-DLLVM_CONFIG_PATH="${SYSROOT}/bin/llvm-config" \
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-DLLVM_DEFAULT_TARGET_TRIPLE="x86_64-unknown-elf" \
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-DLLVM_ENABLE_LIBCXX=ON \
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-DLLVM_ENABLE_LLD=ON \
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-DLLVM_ENABLE_PIC=OFF \
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-DLLVM_ENABLE_THREADS=OFF \
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-DLLVM_INSTALL_BINUTILS_SYMLINKS=ON \
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-DLLVM_BUILD_TOOLS=OFF \
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-DLLVM_ENABLE_BINDINGS=OFF \
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-DLLVM_ENABLE_PROJECTS="clang;lld;libcxx;libcxxabi;libunwind;compiler-rt" \
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-DLLVM_INCLUDE_BENCHMARKS=OFF \
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-DLLVM_INCLUDE_EXAMPLES=OFF \
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-DLLVM_INCLUDE_TESTS=OFF \
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-DLLVM_INCLUDE_UTILS=OFF \
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-DLLVM_TARGETS_TO_BUILD="X86" \
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${WORK}/llvm > cmake_configure.log
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-DLLVM_USE_LINKER="lld" \
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2>&1 > "${ROOT}/configure_stage1.log"
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# -DCMAKE_ASM_COMPILER=nasm \
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# -DCMAKE_LINKER="${SYSROOT}/bin/ld.lld" \
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# -DCOMPILER_RT_ENABLE_LLD=ON \
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# -DLIBCXX_ENABLE_LLD=ON \
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# -DLIBCXX_ENABLE_STATIC_UNWINDER=ON \
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# -DLIBCXXABI_ENABLE_LLD=ON \
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# -DLIBUNWIND_ENABLE_LLD=ON \
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# -DLLVM_ENABLE_PROJECTS="libcxx;libcxxabi;libunwind;compiler-rt" \
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# -DCOMPILER_RT_BAREMETAL_BUILD=ON \
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# -DLIBCXXABI_BAREMETAL=ON \
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echo "* Building stage1"
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echo "Building LLVM..."
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ninja && ninja install
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ninja cxx cxxabi compiler-rt
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ninja install-compiler-rt install-cxx install-cxxabi
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popd
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ninja -C "${ROOT}/stage1" -v > "${ROOT}/build_stage1.log"
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STAGE1="${ROOT}/stage1/bin"
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## Stage2: build the sysroot libraries with the stage1 toolchain
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cp "${README}" "${SYSROOT}/README.md"
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echo "* Configuring stage2"
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mkdir -p "${ROOT}/stage2"
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cmake -G Ninja \
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-S "${ROOT}/llvm-project/llvm" \
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-B "${ROOT}/stage2" \
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-DCMAKE_BUILD_TYPE=Release \
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-DCMAKE_C_COMPILER="${STAGE1}/clang" \
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-DCMAKE_C_COMPILER_LAUNCHER=ccache \
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-DCMAKE_CXX_COMPILER="${STAGE1}/clang++" \
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-DCMAKE_CXX_COMPILER_LAUNCHER=ccache \
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-DCMAKE_INSTALL_PREFIX="${OUT}" \
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-DCMAKE_SHARED_LINKER_FLAGS="-fuse-ld=${STAGE1}/ld.lld" \
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-DLIBCXXABI_ENABLE_STATIC_UNWINDER=ON \
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-DLIBCXXABI_USE_COMPILER_RT=ON \
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-DLIBCXXABI_USE_LLVM_UNWINDER=ON \
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-DLIBCXX_CXX_ABI=libcxxabi \
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-DLIBCXX_INCLUDE_BENCHMARKS=OFF \
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-DLIBUNWIND_USE_COMPILER_RT=ON \
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-DLLVM_DEFAULT_TARGET_TRIPLE="x86_64-unknown-elf" \
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-DLLVM_ENABLE_BINDINGS=OFF \
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-DLLVM_ENABLE_LIBCXX=ON \
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-DLLVM_ENABLE_PROJECTS="libcxx;libcxxabi;libunwind" \
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-DLLVM_INCLUDE_BENCHMARKS=OFF \
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-DLLVM_INCLUDE_EXAMPLES=OFF \
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-DLLVM_INCLUDE_TESTS=OFF \
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-DLLVM_INCLUDE_TOOLS=OFF \
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-DLLVM_INCLUDE_UTILS=OFF \
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-DLLVM_TARGETS_TO_BUILD="X86" \
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-DLLVM_USE_LINKER="${STAGE1}/ld.lld" \
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2>&1 > "${ROOT}/configure_stage2.log"
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echo "* Building stage2"
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ninja -C "${ROOT}/stage2" -v > "${ROOT}/build_stage2.log"
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echo "* Installing stage2"
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ninja -C "${ROOT}/stage2" -v install/strip > "${ROOT}/install_stage2.log"
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echo "* Installing new sysroot"
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rm -rf "${SYSROOT}"
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mv "${OUT}" "${SYSROOT}"
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echo "* Cleaning up"
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trap - ERR
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rm -rf "${ROOT}"
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echo "Done"
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