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build_llvm.py
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build_llvm.py
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import os
import subprocess
import sys
from warp.build_dll import *
# set build output path off this file
base_path = os.path.dirname(os.path.realpath(__file__))
build_path = os.path.join(base_path, "warp")
llvm_project_path = os.path.join(base_path, "external/llvm-project")
llvm_build_path = os.path.join(llvm_project_path, "out/build/")
llvm_install_path = os.path.join(llvm_project_path, "out/install/")
# Fetch prebuilt Clang/LLVM libraries
def fetch_prebuilt_libraries(arch):
if os.name == "nt":
packman = "tools\\packman\\packman.cmd"
packages = {"x86_64": "15.0.7-windows-x86_64-ptx-vs142"}
else:
packman = "./tools/packman/packman"
if sys.platform == "darwin":
packages = {
"aarch64": "15.0.7-darwin-aarch64-macos11",
"x86_64": "15.0.7-darwin-x86_64-macos11",
}
else:
packages = {
"aarch64": "15.0.7-linux-aarch64-gcc7.5",
"x86_64": "18.1.3-linux-x86_64-gcc9.4",
}
try:
subprocess.check_output(
[
packman,
"install",
"-l",
f"./_build/host-deps/llvm-project/release-{arch}",
"clang+llvm-warp",
packages[arch],
],
stderr=subprocess.STDOUT,
text=True,
)
except subprocess.CalledProcessError as e:
print(e.output)
raise e
def build_from_source_for_arch(args, arch, llvm_source):
# Check out the LLVM project Git repository, unless it already exists
if not os.path.exists(llvm_source):
# Install dependencies
subprocess.check_call([sys.executable, "-m", "pip", "install", "gitpython"])
subprocess.check_call([sys.executable, "-m", "pip", "install", "cmake"])
subprocess.check_call([sys.executable, "-m", "pip", "install", "ninja"])
from git import Repo
repo_url = "https://github.com/llvm/llvm-project.git"
print(f"Cloning LLVM project from {repo_url}...")
shallow_clone = True # https://github.blog/2020-12-21-get-up-to-speed-with-partial-clone-and-shallow-clone/
version = "18.1.3"
if shallow_clone:
repo = Repo.clone_from(
repo_url,
to_path=llvm_source,
single_branch=True,
branch=f"llvmorg-{version}",
depth=1,
)
else:
repo = Repo.clone_from(repo_url, to_path=llvm_source)
repo.git.checkout(f"tags/llvmorg-{version}", "-b", f"llvm-{version}")
print(f"Using LLVM project source from {llvm_source}")
# CMake supports Debug, Release, RelWithDebInfo, and MinSizeRel builds
if args.mode == "release":
msvc_runtime = "MultiThreaded"
# prefer smaller size over aggressive speed
cmake_build_type = "MinSizeRel"
else:
msvc_runtime = "MultiThreadedDebug"
# When args.mode == "debug" we build a Debug version of warp.dll but
# we generally don't want warp-clang.dll to be a slow Debug version.
if args.debug_llvm:
cmake_build_type = "Debug"
else:
# The GDB/LLDB debugger observes the __jit_debug_register_code symbol
# defined by the LLVM JIT, for which it needs debug info.
cmake_build_type = "RelWithDebInfo"
# Location of cmake and ninja installed through pip (see build.bat / build.sh)
python_bin = "python/Scripts" if sys.platform == "win32" else "python/bin"
os.environ["PATH"] = os.path.join(base_path, "_build/target-deps/" + python_bin) + os.pathsep + os.environ["PATH"]
if arch == "aarch64":
target_backend = "AArch64"
else:
target_backend = "X86"
if sys.platform == "darwin":
host_triple = f"{arch}-apple-macos11"
osx_architectures = arch # build one architecture only
abi_version = ""
elif os.name == "nt":
host_triple = f"{arch}-pc-windows"
osx_architectures = ""
abi_version = ""
else:
host_triple = f"{arch}-pc-linux"
osx_architectures = ""
abi_version = "-fabi-version=13" # GCC 8.2+
llvm_path = os.path.join(llvm_source, "llvm")
build_path = os.path.join(llvm_build_path, f"{args.mode}-{arch}")
install_path = os.path.join(llvm_install_path, f"{args.mode}-{arch}")
# Build LLVM and Clang
# fmt: off
cmake_gen = [
"cmake",
"-S", llvm_path,
"-B", build_path,
"-G", "Ninja",
"-D", f"CMAKE_BUILD_TYPE={cmake_build_type}",
"-D", f"CMAKE_MSVC_RUNTIME_LIBRARY={msvc_runtime}",
"-D", f"LLVM_TARGETS_TO_BUILD={target_backend};NVPTX",
"-D", "LLVM_ENABLE_PROJECTS=clang",
"-D", "LLVM_ENABLE_ZLIB=FALSE",
"-D", "LLVM_ENABLE_ZSTD=FALSE",
"-D", "LLVM_ENABLE_TERMINFO=FALSE",
"-D", "LLVM_BUILD_LLVM_C_DYLIB=FALSE",
"-D", "LLVM_BUILD_RUNTIME=FALSE",
"-D", "LLVM_BUILD_RUNTIMES=FALSE",
"-D", "LLVM_BUILD_TOOLS=FALSE",
"-D", "LLVM_BUILD_UTILS=FALSE",
"-D", "LLVM_INCLUDE_BENCHMARKS=FALSE",
"-D", "LLVM_INCLUDE_DOCS=FALSE",
"-D", "LLVM_INCLUDE_EXAMPLES=FALSE",
"-D", "LLVM_INCLUDE_RUNTIMES=FALSE",
"-D", "LLVM_INCLUDE_TESTS=FALSE",
"-D", "LLVM_INCLUDE_TOOLS=TRUE", # Needed by Clang
"-D", "LLVM_INCLUDE_UTILS=FALSE",
"-D", f"CMAKE_CXX_FLAGS=-D_GLIBCXX_USE_CXX11_ABI=0 {abi_version}", # The pre-C++11 ABI is still the default on the CentOS 7 toolchain
"-D", f"CMAKE_INSTALL_PREFIX={install_path}",
"-D", f"LLVM_HOST_TRIPLE={host_triple}",
"-D", f"CMAKE_OSX_ARCHITECTURES={osx_architectures}",
# Disable unused tools and features
"-D", "CLANG_BUILD_TOOLS=FALSE",
"-D", "LLVM_ENABLE_PLUGINS=FALSE",
"-D", "CLANG_PLUGIN_SUPPORT=FALSE",
"-D", "CLANG_ENABLE_ARCMT=FALSE",
"-D", "CLANG_ENABLE_STATIC_ANALYZER=FALSE",
"-D", "CLANG_TOOLING_BUILD_AST_INTROSPECTION=FALSE",
"-D", "CLANG_TOOL_AMDGPU_ARCH_BUILD=FALSE",
"-D", "CLANG_TOOL_APINOTES_TEST_BUILD=FALSE",
"-D", "CLANG_TOOL_ARCMT_TEST_BUILD=FALSE",
"-D", "CLANG_TOOL_CLANG_CHECK_BUILD=FALSE",
"-D", "CLANG_TOOL_CLANG_DIFF_BUILD=FALSE",
"-D", "CLANG_TOOL_CLANG_EXTDEF_MAPPING_BUILD=FALSE",
"-D", "CLANG_TOOL_CLANG_FORMAT_BUILD=FALSE",
"-D", "CLANG_TOOL_CLANG_FORMAT_VS_BUILD=FALSE",
"-D", "CLANG_TOOL_CLANG_FUZZER_BUILD=FALSE",
"-D", "CLANG_TOOL_CLANG_IMPORT_TEST_BUILD=FALSE",
"-D", "CLANG_TOOL_CLANG_LINKER_WRAPPER_BUILD=FALSE",
"-D", "CLANG_TOOL_CLANG_NVLINK_WRAPPER_BUILD=FALSE",
"-D", "CLANG_TOOL_CLANG_OFFLOAD_BUNDLER_BUILD=FALSE",
"-D", "CLANG_TOOL_CLANG_OFFLOAD_PACKAGER_BUILD=FALSE",
"-D", "CLANG_TOOL_CLANG_OFFLOAD_WRAPPER_BUILD=FALSE",
"-D", "CLANG_TOOL_CLANG_REFACTOR_BUILD=FALSE",
"-D", "CLANG_TOOL_CLANG_RENAME_BUILD=FALSE",
"-D", "CLANG_TOOL_CLANG_REPL_BUILD=FALSE",
"-D", "CLANG_TOOL_CLANG_SCAN_DEPS_BUILD=FALSE",
"-D", "CLANG_TOOL_CLANG_SHLIB_BUILD=FALSE",
"-D", "CLANG_TOOL_C_ARCMT_TEST_BUILD=FALSE",
"-D", "CLANG_TOOL_C_INDEX_TEST_BUILD=FALSE",
"-D", "CLANG_TOOL_DIAGTOOL_BUILD=FALSE",
"-D", "CLANG_TOOL_DRIVER_BUILD=FALSE",
"-D", "CLANG_TOOL_LIBCLANG_BUILD=FALSE",
"-D", "CLANG_TOOL_SCAN_BUILD_BUILD=FALSE",
"-D", "CLANG_TOOL_SCAN_BUILD_PY_BUILD=FALSE",
"-D", "CLANG_TOOL_CLANG_OFFLOAD_BUNDLER_BUILD=FALSE",
"-D", "CLANG_TOOL_SCAN_VIEW_BUILD=FALSE",
"-D", "LLVM_ENABLE_BINDINGS=FALSE",
"-D", "LLVM_ENABLE_OCAMLDOC=FALSE",
"-D", "LLVM_TOOL_BUGPOINT_BUILD=FALSE",
"-D", "LLVM_TOOL_BUGPOINT_PASSES_BUILD=FALSE",
"-D", "LLVM_TOOL_CLANG_BUILD=FALSE",
"-D", "LLVM_TOOL_DSYMUTIL_BUILD=FALSE",
"-D", "LLVM_TOOL_DXIL_DIS_BUILD=FALSE",
"-D", "LLVM_TOOL_GOLD_BUILD=FALSE",
"-D", "LLVM_TOOL_LLC_BUILD=FALSE",
"-D", "LLVM_TOOL_LLDB_BUILD=FALSE",
"-D", "LLVM_TOOL_LLI_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_AR_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_AS_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_AS_FUZZER_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_BCANALYZER_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_CAT_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_CFI_VERIFY_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_CONFIG_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_COV_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_CVTRES_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_CXXDUMP_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_CXXFILT_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_CXXMAP_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_C_TEST_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_DEBUGINFOD_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_DEBUGINFOD_FIND_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_DIFF_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_DIS_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_DIS_FUZZER_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_DLANG_DEMANGLE_FUZZER_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_DWARFDUMP_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_DWARFUTIL_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_DWP_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_EXEGESIS_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_EXTRACT_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_GO_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_GSYMUTIL_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_IFS_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_ISEL_FUZZER_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_ITANIUM_DEMANGLE_FUZZER_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_JITLINK_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_JITLISTENER_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_LIBTOOL_DARWIN_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_LINK_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_LIPO_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_LTO2_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_LTO_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_MCA_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_MC_ASSEMBLE_FUZZER_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_MC_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_MC_DISASSEMBLE_FUZZER_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_MICROSOFT_DEMANGLE_FUZZER_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_ML_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_MODEXTRACT_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_MT_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_NM_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_OBJCOPY_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_OBJDUMP_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_OPT_FUZZER_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_OPT_REPORT_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_PDBUTIL_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_PROFDATA_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_PROFGEN_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_RC_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_READOBJ_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_REDUCE_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_REMARK_SIZE_DIFF_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_RTDYLD_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_RUST_DEMANGLE_FUZZER_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_SHLIB_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_SIM_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_SIZE_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_SPECIAL_CASE_LIST_FUZZER_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_SPLIT_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_STRESS_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_STRINGS_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_SYMBOLIZER_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_TAPI_DIFF_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_TLI_CHECKER_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_UNDNAME_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_XRAY_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_YAML_NUMERIC_PARSER_FUZZER_BUILD=FALSE",
"-D", "LLVM_TOOL_LLVM_YAML_PARSER_FUZZER_BUILD=FALSE",
"-D", "LLVM_TOOL_LTO_BUILD=FALSE",
"-D", "LLVM_TOOL_OBJ2YAML_BUILD=FALSE",
"-D", "LLVM_TOOL_OPT_BUILD=FALSE",
"-D", "LLVM_TOOL_OPT_VIEWER_BUILD=FALSE",
"-D", "LLVM_TOOL_REMARKS_SHLIB_BUILD=FALSE",
"-D", "LLVM_TOOL_SANCOV_BUILD=FALSE",
"-D", "LLVM_TOOL_SANSTATS_BUILD=FALSE",
"-D", "LLVM_TOOL_SPLIT_FILE_BUILD=FALSE",
"-D", "LLVM_TOOL_VERIFY_USELISTORDER_BUILD=FALSE",
"-D", "LLVM_TOOL_VFABI_DEMANGLE_FUZZER_BUILD=FALSE",
"-D", "LLVM_TOOL_XCODE_TOOLCHAIN_BUILD=FALSE",
"-D", "LLVM_TOOL_YAML2OBJ_BUILD=FALSE",
]
# fmt: on
subprocess.check_call(cmake_gen, stderr=subprocess.STDOUT)
cmake_build = ["cmake", "--build", build_path]
subprocess.check_call(cmake_build, stderr=subprocess.STDOUT)
cmake_install = ["cmake", "--install", build_path]
subprocess.check_call(cmake_install, stderr=subprocess.STDOUT)
def build_from_source(args):
print("Building Clang/LLVM from source...")
if args.llvm_source_path is not None:
llvm_source = args.llvm_source_path
else:
llvm_source = llvm_project_path
# build for the machine's architecture
build_from_source_for_arch(args, machine_architecture(), llvm_source)
# for Apple systems also cross-compile for building a universal binary
if sys.platform == "darwin":
if machine_architecture() == "x86_64":
build_from_source_for_arch(args, "aarch64", llvm_source)
else:
build_from_source_for_arch(args, "x86_64", llvm_source)
# build warp-clang.dll
def build_warp_clang_for_arch(args, lib_name, arch):
try:
cpp_sources = [
"native/clang/clang.cpp",
"native/crt.cpp",
]
clang_cpp_paths = [os.path.join(build_path, cpp) for cpp in cpp_sources]
clang_dll_path = os.path.join(build_path, f"bin/{lib_name}")
if args.build_llvm:
# obtain Clang and LLVM libraries from the local build
install_path = os.path.join(llvm_install_path, f"{args.mode}-{arch}")
libpath = os.path.join(install_path, "lib")
else:
# obtain Clang and LLVM libraries from packman
fetch_prebuilt_libraries(arch)
libpath = os.path.join(base_path, f"_build/host-deps/llvm-project/release-{arch}/lib")
libs = []
for _, _, libraries in os.walk(libpath):
libs.extend(libraries)
break # just the top level contains library files
if os.name == "nt":
libs.append("Version.lib")
libs.append("Ws2_32.lib")
libs.append(f'/LIBPATH:"{libpath}"')
else:
libs = [f"-l{lib[3:-2]}" for lib in libs if os.path.splitext(lib)[1] == ".a"]
if sys.platform == "darwin":
libs += libs # prevents unresolved symbols due to link order
else:
libs.insert(0, "-Wl,--start-group")
libs.append("-Wl,--end-group")
libs.append(f"-L{libpath}")
libs.append("-lpthread")
libs.append("-ldl")
if sys.platform != "darwin":
libs.append("-lrt")
build_dll_for_arch(
args,
dll_path=clang_dll_path,
cpp_paths=clang_cpp_paths,
cu_path=None,
libs=libs,
arch=arch,
mode=args.mode if args.build_llvm else "release",
)
except Exception as e:
# output build error
print(f"Warp Clang/LLVM build error: {e}")
# report error
sys.exit(1)
def build_warp_clang(args, lib_name):
if sys.platform == "darwin":
# create a universal binary by combining x86-64 and AArch64 builds
build_warp_clang_for_arch(args, lib_name + "-x86_64", "x86_64")
build_warp_clang_for_arch(args, lib_name + "-aarch64", "aarch64")
dylib_path = os.path.join(build_path, f"bin/{lib_name}")
run_cmd(f"lipo -create -output {dylib_path} {dylib_path}-x86_64 {dylib_path}-aarch64")
os.remove(f"{dylib_path}-x86_64")
os.remove(f"{dylib_path}-aarch64")
else:
build_warp_clang_for_arch(args, lib_name, machine_architecture())