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revive/build-llvm.sh
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Sebastian Miasojed cece20deb1 Cleanup
2024-11-18 10:18:21 +01:00

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#!/usr/bin/env bash
set -euo pipefail
INSTALL_DIR="${PWD}/llvm18.0"
mkdir -p ${INSTALL_DIR}
./clone-llvm.sh
# Build LLVM, clang
LLVM_SRC_PREFIX=${PWD}/llvm-project
LLVM_SRC_DIR=${LLVM_SRC_PREFIX}/llvm
LLVM_BUILD_DIR=${LLVM_SRC_PREFIX}/build/llvm
if [ ! -d ${LLVM_BUILD_DIR} ] ; then
mkdir -p ${LLVM_BUILD_DIR}
fi
cmake -G Ninja \
-S ${LLVM_SRC_DIR} \
-B ${LLVM_BUILD_DIR} \
-DLLVM_ENABLE_ASSERTIONS=On \
-DLLVM_ENABLE_TERMINFO=Off \
-DLLVM_ENABLE_LIBXML2=Off \
-DLLVM_ENABLE_ZLIB=Off \
-DLLVM_ENABLE_PROJECTS='clang;lld' \
-DLLVM_TARGETS_TO_BUILD='RISCV' \
-DLLVM_ENABLE_ZSTD=Off \
-DCMAKE_BUILD_TYPE=MinSizeRel \
-DCMAKE_INSTALL_PREFIX=${INSTALL_DIR}
cmake --build ${LLVM_BUILD_DIR}
cmake --install ${LLVM_BUILD_DIR}
# Build compiler builtins
COMPILER_RT_SRC_DIR=${LLVM_SRC_PREFIX}/compiler-rt
COMPILER_RT_BUILD_DIR=${LLVM_SRC_PREFIX}/build/compiler-rt
if [ ! -d ${COMPILER_RT_BUILD_DIR} ] ; then
mkdir -p ${COMPILER_RT_BUILD_DIR}
fi
build_compiler_rt() {
case "$1" in
64) TARGET_ABI=lp64e ;;
32) TARGET_ABI=ilp32e ;;
*) exit -1
esac
CFLAGS="--target=riscv${1} -march=rv${1}em -mabi=${TARGET_ABI} -mcpu=generic-rv${1} -nostdlib -nodefaultlibs"
cmake -G Ninja \
-S ${COMPILER_RT_SRC_DIR} \
-B ${COMPILER_RT_BUILD_DIR} \
-DCMAKE_BUILD_TYPE=Release \
-DCMAKE_INSTALL_PREFIX=${INSTALL_DIR} \
-DCOMPILER_RT_BUILD_BUILTINS=ON \
-DCOMPILER_RT_BUILD_LIBFUZZER=OFF \
-DCOMPILER_RT_BUILD_MEMPROF=OFF \
-DCOMPILER_RT_BUILD_PROFILE=OFF \
-DCOMPILER_RT_BUILD_SANITIZERS=OFF \
-DCOMPILER_RT_BUILD_XRAY=OFF \
-DCMAKE_C_COMPILER=${INSTALL_DIR}/bin/clang \
-DCMAKE_C_COMPILER_TARGET=riscv${1} \
-DCMAKE_ASM_COMPILER_TARGET=riscv${1} \
-DCMAKE_CXX_COMPILER_TARGET=riscv${1} \
-DCMAKE_C_TARGET_BITS=riscv${1} \
-DCMAKE_ASM_TARGET_BITS=riscv${1} \
-DCMAKE_AR=${INSTALL_DIR}/bin/llvm-ar \
-DCMAKE_NM=${INSTALL_DIR}/bin/llvm-nm \
-DCMAKE_RANLIB=${INSTALL_DIR}/bin/llvm-ranlib \
-DCOMPILER_RT_BAREMETAL_BUILD=ON \
-DLLVM_CONFIG_PATH=${INSTALL_DIR}/bin/llvm-config \
-DCMAKE_C_FLAGS="${CFLAGS}" \
-DCMAKE_ASM_FLAGS="${CFLAGS}" \
-DCOMPILER_RT_TEST_COMPILER=${INSTALL_DIR}/bin/clang \
-DCMAKE_CXX_FLAGS="${CFLAGS}" \
-DCMAKE_SYSTEM_NAME=unknown \
-DCOMPILER_RT_DEFAULT_TARGET_ONLY=ON
cmake --build ${COMPILER_RT_BUILD_DIR}
cmake --install ${COMPILER_RT_BUILD_DIR}
}
build_compiler_rt 32
build_compiler_rt 64
echo ""
echo "success"
echo "add this directory to your PATH: ${INSTALL_DIR}/bin/"