105 lines
3.0 KiB
Bash
Executable File
105 lines
3.0 KiB
Bash
Executable File
#!/bin/bash
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#
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# Builds Clang and LLD from source.
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export WORKSPACE_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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export LLVM_PROJECT="${WORKSPACE_ROOT}/tools/llvm-project"
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: "${LLVM_REPO:=https://github.com/llvm-mirror/llvm.git}"
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: "${LLVM_REF:=master}"
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: "${CLANG_REPO:=https://github.com/llvm-mirror/clang.git}"
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: "${CLANG_REF:=master}"
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: "${LLD_REPO:=https://github.com/llvm-mirror/lld.git}"
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: "${LLD_REF:=master}"
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: "${LIBCXX_REPO:=https://github.com/llvm-mirror/libcxx.git}"
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: "${LIBCXX_REF:=master}"
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: "${LLVM_INSTALL_PREFIX:=$WORKSPACE_ROOT/build/llvm-install}"
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: "${CXX:=clang++}"
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: "${CC:=clang}"
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if [ ! -d "${LLVM_PROJECT}" ]; then
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mkdir -p "${LLVM_PROJECT}" || exit
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fi
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cd "${LLVM_PROJECT}" || exit
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if [ ! -d llvm/.git ]; then
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git clone --depth=1 -b "$LLVM_REF" -- "$LLVM_REPO" llvm || exit
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else
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(cd llvm &&
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git remote set-url origin "$LLVM_REPO" &&
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git fetch origin "$LLVM_REF" &&
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git checkout FETCH_HEAD) || exit
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fi
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if [ ! -d llvm/tools/clang/.git ]; then
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git clone --depth=1 -b "$CLANG_REF" -- "$CLANG_REPO" llvm/tools/clang || exit
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ln -s llvm/tools/clang clang || exit
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else
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(cd llvm/tools/clang &&
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git remote set-url origin "$CLANG_REPO" &&
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git fetch --depth=1 origin "$CLANG_REF" &&
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git checkout FETCH_HEAD) || exit
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fi
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if [ ! -d llvm/tools/lld/.git ]; then
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git clone --depth=1 -b "$LLD_REF" -- "$LLD_REPO" llvm/tools/lld || exit
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ln -s llvm/tools/lld lld || exit
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else
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(cd llvm/tools/lld &&
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git remote set-url origin "$LLD_REPO" &&
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git fetch --depth=1 origin "$LLD_REF" &&
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git checkout FETCH_HEAD) || exit
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fi
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if [ ! -d llvm/projects/libcxx/.git ]; then
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git clone --depth=1 -b "$LIBCXX_REF" -- "$LIBCXX_REPO" llvm/projects/libcxx || exit
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ln -s llvm/projects/libcxx libcxx || exit
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else
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(cd llvm/projects/libcxx &&
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git remote set-url origin "$LIBCXX_REPO" &&
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git fetch --depth=1 origin "$LIBCXX_REF" &&
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git checkout FETCH_HEAD) || exit
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fi
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cd "$WORKSPACE_ROOT" || exit
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if [ ! -d build/clang ]; then
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mkdir -p build/clang || exit
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fi
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# Build clang toolchain
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(mkdir -p build/clang && \
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cd build/clang && \
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cmake -GNinja \
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-DCMAKE_CXX_COMPILER="$CXX" \
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-DCMAKE_C_COMPILER="$CC" \
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-DCMAKE_BUILD_TYPE=MinSizeRel \
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-DCMAKE_INSTALL_PREFIX="${LLVM_INSTALL_PREFIX}" \
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-DCMAKE_BUILD_WITH_INSTALL_RPATH="yes" \
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-DLLVM_TARGETS_TO_BUILD=X86 \
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-DLLVM_ENABLE_PROJECTS="lld;clang" \
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"${LLVM_PROJECT}/llvm" && \
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ninja install-clang \
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install-clang-headers \
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install-llvm-ar \
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install-lld) || exit
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# Build libcxx using clang we just built
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(mkdir -p build/libcxx && \
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cd build/libcxx && \
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cmake -GNinja \
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-DCMAKE_CXX_COMPILER="${LLVM_INSTALL_PREFIX}/bin/clang++" \
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-DCMAKE_C_COMPILER="${LLVM_INSTALL_PREFIX}/bin/clang" \
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-DCMAKE_BUILD_TYPE=Release \
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-DCMAKE_INSTALL_PREFIX="${LLVM_INSTALL_PREFIX}" \
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-DLLVM_PATH="${LLVM_PROJECT}/llvm" \
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-DLIBCXX_CXX_ABI=libstdc++ \
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"${LLVM_PROJECT}/libcxx" && \
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ninja install) || exit
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