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Add directory arg support to clone-llvm

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This commit is contained in:
Sebastian Miasojed
2024-11-20 17:15:55 +01:00
parent 491850760f
commit 0a82addf02
5 changed files with 43 additions and 37 deletions
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emscripten-build-llvm.sh
+24 -26
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@@ -3,46 +3,44 @@
set -euo pipefail
INSTALL_DIR="${PWD}/llvm18.0-emscripten"
mkdir -p ${INSTALL_DIR}
./clone-llvm.sh
# Build LLVM, clang
cd llvm-project
mkdir -p "${INSTALL_DIR}"
# Check if EMSDK_ROOT is defined
if [ -z "$EMSDK_ROOT" ]; then
if [ -z "${EMSDK_ROOT:-}" ]; then
echo "Error: EMSDK_ROOT is not defined."
echo "Please set the EMSDK_ROOT environment variable to the root directory of your Emscripten SDK."
exit 1
fi
source ${EMSDK_ROOT}/emsdk_env.sh
source "${EMSDK_ROOT}/emsdk_env.sh"
LLVM_SRC=$(pwd)
LLVM_SRC=$(pwd)/llvm-project
LLVM_SRC=$(realpath "$LLVM_SRC")
LLVM_NATIVE=$LLVM_SRC/build-native
LLVM_WASM=$LLVM_SRC/build-wasm
LLVM_NATIVE="${LLVM_SRC}/build-native"
LLVM_WASM="${LLVM_SRC}/build-wasm"
# Cross compiling llvm needs a native build of "llvm-tblgen" and "clang-tblgen"
if [ ! -d $LLVM_NATIVE/ ]; then
./clone-llvm.sh "${LLVM_SRC}"
# Cross-compiling LLVM requires a native build of "llvm-tblgen" and "clang-tblgen"
if [ ! -d "${LLVM_NATIVE}" ]; then
cmake -G Ninja \
-S $LLVM_SRC/llvm/ \
-B $LLVM_NATIVE/ \
-S "${LLVM_SRC}/llvm" \
-B "${LLVM_NATIVE}" \
-DCMAKE_BUILD_TYPE=Release \
-DLLVM_TARGETS_TO_BUILD=WebAssembly \
-DLLVM_ENABLE_PROJECTS="clang"
fi
cmake --build $LLVM_NATIVE/ -- llvm-tblgen clang-tblgen llvm-config
if [ ! -d $LLVM_WASM/ ]; then
cmake --build "${LLVM_NATIVE}" -- llvm-tblgen clang-tblgen llvm-config
if [ ! -d "${LLVM_WASM}" ]; then
EMCC_DEBUG=2 \
CXXFLAGS="-Dwait4=__syscall_wait4" \
LDFLAGS="-lnodefs.js -s NO_INVOKE_RUN -s EXIT_RUNTIME -s INITIAL_MEMORY=64MB -s ALLOW_MEMORY_GROWTH -s \
EXPORTED_RUNTIME_METHODS=FS,callMain,NODEFS -s MODULARIZE -s EXPORT_ES6 -s WASM_BIGINT" \
emcmake cmake -G Ninja \
-S $LLVM_SRC/llvm/ \
-B $LLVM_WASM/ \
-S "${LLVM_SRC}/llvm" \
-B "${LLVM_WASM}" \
-DCMAKE_BUILD_TYPE=Release \
-DLLVM_TARGETS_TO_BUILD='RISCV' \
-DLLVM_ENABLE_PROJECTS="clang;lld" \
@@ -58,15 +56,15 @@ if [ ! -d $LLVM_WASM/ ]; then
-DLLVM_ENABLE_LIBXML2=Off \
-DLLVM_ENABLE_ZLIB=Off \
-DLLVM_ENABLE_ZSTD=Off \
-DLLVM_TABLEGEN=$LLVM_NATIVE/bin/llvm-tblgen \
-DCLANG_TABLEGEN=$LLVM_NATIVE/bin/clang-tblgen \
-DCMAKE_INSTALL_PREFIX=${INSTALL_DIR}/
-DLLVM_TABLEGEN="${LLVM_NATIVE}/bin/llvm-tblgen" \
-DCLANG_TABLEGEN="${LLVM_NATIVE}/bin/clang-tblgen" \
-DCMAKE_INSTALL_PREFIX="${INSTALL_DIR}"
fi
cmake --build $LLVM_WASM/
cmake --install $LLVM_WASM/
cmake --build "${LLVM_WASM}"
cmake --install "${LLVM_WASM}"
cp $LLVM_NATIVE/bin/llvm-config $INSTALL_DIR/bin
cp "${LLVM_NATIVE}/bin/llvm-config" "${INSTALL_DIR}/bin"
echo ""
echo "success"
echo "LLVM cross-compilation for WebAssembly completed successfully."