diff options
Diffstat (limited to 'build/build-clang/build-clang.py')
| -rwxr-xr-x | build/build-clang/build-clang.py | 843 |
1 files changed, 843 insertions, 0 deletions
diff --git a/build/build-clang/build-clang.py b/build/build-clang/build-clang.py new file mode 100755 index 0000000000..08e05483f5 --- /dev/null +++ b/build/build-clang/build-clang.py @@ -0,0 +1,843 @@ +#!/usr/bin/python3 +# This Source Code Form is subject to the terms of the Mozilla Public +# License, v. 2.0. If a copy of the MPL was not distributed with this +# file, You can obtain one at http://mozilla.org/MPL/2.0/. + +# Only necessary for flake8 to be happy... +import argparse +import errno +import fnmatch +import glob +import json +import os +import os.path +import platform +import re +import shutil +import subprocess +import sys +import tarfile +from contextlib import contextmanager +from shutil import which + +import zstandard + +SUPPORTED_TARGETS = { + "x86_64-unknown-linux-gnu": ("Linux", "x86_64"), + "x86_64-pc-windows-msvc": ("Windows", "AMD64"), + "x86_64-apple-darwin": ("Darwin", "x86_64"), + "aarch64-apple-darwin": ("Darwin", "arm64"), +} + + +def is_llvm_toolchain(cc, cxx): + return "clang" in cc and "clang" in cxx + + +def check_run(args): + print(" ".join(args), file=sys.stderr, flush=True) + if args[0] == "cmake": + # CMake `message(STATUS)` messages, as appearing in failed source code + # compiles, appear on stdout, so we only capture that. + p = subprocess.Popen(args, stdout=subprocess.PIPE) + lines = [] + for line in p.stdout: + lines.append(line) + sys.stdout.write(line.decode()) + sys.stdout.flush() + r = p.wait() + if r != 0 and os.environ.get("UPLOAD_DIR"): + cmake_output_re = re.compile(b'See also "(.*/CMakeOutput.log)"') + cmake_error_re = re.compile(b'See also "(.*/CMakeError.log)"') + + def find_first_match(re): + for l in lines: + match = re.search(l) + if match: + return match + + output_match = find_first_match(cmake_output_re) + error_match = find_first_match(cmake_error_re) + + upload_dir = os.environ["UPLOAD_DIR"].encode("utf-8") + if output_match or error_match: + mkdir_p(upload_dir) + if output_match: + shutil.copy2(output_match.group(1), upload_dir) + if error_match: + shutil.copy2(error_match.group(1), upload_dir) + else: + r = subprocess.call(args) + assert r == 0 + + +def run_in(path, args): + with chdir(path): + check_run(args) + + +@contextmanager +def chdir(path): + d = os.getcwd() + print('cd "%s"' % path, file=sys.stderr) + os.chdir(path) + try: + yield + finally: + print('cd "%s"' % d, file=sys.stderr) + os.chdir(d) + + +def patch(patch, srcdir): + patch = os.path.realpath(patch) + check_run(["patch", "-d", srcdir, "-p1", "-i", patch, "--fuzz=0", "-s"]) + + +def import_clang_tidy(source_dir, build_clang_tidy_alpha, build_clang_tidy_external): + clang_plugin_path = os.path.join(os.path.dirname(sys.argv[0]), "..", "clang-plugin") + clang_tidy_path = os.path.join(source_dir, "clang-tools-extra/clang-tidy") + sys.path.append(clang_plugin_path) + from import_mozilla_checks import do_import + + import_options = { + "alpha": build_clang_tidy_alpha, + "external": build_clang_tidy_external, + } + do_import(clang_plugin_path, clang_tidy_path, import_options) + + +def build_package(package_build_dir, cmake_args): + if not os.path.exists(package_build_dir): + os.mkdir(package_build_dir) + # If CMake has already been run, it may have been run with different + # arguments, so we need to re-run it. Make sure the cached copy of the + # previous CMake run is cleared before running it again. + if os.path.exists(package_build_dir + "/CMakeCache.txt"): + os.remove(package_build_dir + "/CMakeCache.txt") + if os.path.exists(package_build_dir + "/CMakeFiles"): + shutil.rmtree(package_build_dir + "/CMakeFiles") + + run_in(package_build_dir, ["cmake"] + cmake_args) + run_in(package_build_dir, ["ninja", "install", "-v"]) + + +@contextmanager +def updated_env(env): + old_env = os.environ.copy() + os.environ.update(env) + yield + os.environ.clear() + os.environ.update(old_env) + + +def build_tar_package(name, base, directory): + name = os.path.realpath(name) + print("tarring {} from {}/{}".format(name, base, directory), file=sys.stderr) + assert name.endswith(".tar.zst") + + cctx = zstandard.ZstdCompressor() + with open(name, "wb") as f, cctx.stream_writer(f) as z: + with tarfile.open(mode="w|", fileobj=z) as tf: + with chdir(base): + tf.add(directory) + + +def mkdir_p(path): + try: + os.makedirs(path) + except OSError as e: + if e.errno != errno.EEXIST or not os.path.isdir(path): + raise + + +def delete(path): + if os.path.isdir(path): + shutil.rmtree(path) + else: + try: + os.unlink(path) + except Exception: + pass + + +def install_import_library(build_dir, clang_dir): + shutil.copy2( + os.path.join(build_dir, "lib", "clang.lib"), os.path.join(clang_dir, "lib") + ) + + +def is_darwin(target): + return "-apple-darwin" in target + + +def is_linux(target): + return "-linux-gnu" in target + + +def is_windows(target): + return "-windows-msvc" in target + + +def is_cross_compile(target): + return SUPPORTED_TARGETS[target] != (platform.system(), platform.machine()) + + +def build_one_stage( + cc, + cxx, + asm, + ar, + ranlib, + ldflags, + src_dir, + stage_dir, + package_name, + build_type, + assertions, + target, + targets, + is_final_stage=False, + profile=None, +): + if not os.path.exists(stage_dir): + os.mkdir(stage_dir) + + build_dir = stage_dir + "/build" + inst_dir = stage_dir + "/" + package_name + + # cmake doesn't deal well with backslashes in paths. + def slashify_path(path): + return path.replace("\\", "/") + + def cmake_base_args(cc, cxx, asm, ar, ranlib, ldflags, inst_dir): + machine_targets = targets if is_final_stage and targets else "X86" + + cmake_args = [ + "-GNinja", + "-DCMAKE_C_COMPILER=%s" % slashify_path(cc[0]), + "-DCMAKE_CXX_COMPILER=%s" % slashify_path(cxx[0]), + "-DCMAKE_ASM_COMPILER=%s" % slashify_path(asm[0]), + "-DCMAKE_AR=%s" % slashify_path(ar), + "-DCMAKE_C_FLAGS_INIT=%s" % " ".join(cc[1:]), + "-DCMAKE_CXX_FLAGS_INIT=%s" % " ".join(cxx[1:]), + "-DCMAKE_ASM_FLAGS_INIT=%s" % " ".join(asm[1:]), + "-DCMAKE_EXE_LINKER_FLAGS_INIT=%s" % " ".join(ldflags), + "-DCMAKE_SHARED_LINKER_FLAGS_INIT=%s" % " ".join(ldflags), + "-DCMAKE_BUILD_TYPE=%s" % build_type, + "-DCMAKE_INSTALL_PREFIX=%s" % inst_dir, + "-DLLVM_TARGETS_TO_BUILD=%s" % machine_targets, + "-DLLVM_ENABLE_PER_TARGET_RUNTIME_DIR=OFF", + "-DLLVM_ENABLE_ASSERTIONS=%s" % ("ON" if assertions else "OFF"), + "-DLLVM_ENABLE_BINDINGS=OFF", + "-DLLVM_ENABLE_CURL=OFF", + "-DLLVM_INCLUDE_TESTS=OFF", + ] + if is_llvm_toolchain(cc[0], cxx[0]): + cmake_args += ["-DLLVM_ENABLE_LLD=ON"] + elif is_windows(target) and is_cross_compile(target): + raise Exception( + "Cannot cross-compile for Windows with a compiler that is not clang" + ) + + if "TASK_ID" in os.environ: + cmake_args += [ + "-DCLANG_REPOSITORY_STRING=taskcluster-%s" % os.environ["TASK_ID"], + ] + projects = ["clang", "lld"] + if is_final_stage: + projects.append("clang-tools-extra") + else: + cmake_args.append("-DLLVM_TOOL_LLI_BUILD=OFF") + + cmake_args.append("-DLLVM_ENABLE_PROJECTS=%s" % ";".join(projects)) + + # There is no libxml2 on Windows except if we build one ourselves. + # libxml2 is only necessary for llvm-mt, but Windows can just use the + # native MT tool. + if not is_windows(target) and is_final_stage: + cmake_args += ["-DLLVM_ENABLE_LIBXML2=FORCE_ON"] + if is_linux(target) and is_final_stage: + sysroot = os.path.join(os.environ.get("MOZ_FETCHES_DIR", ""), "sysroot") + if os.path.exists(sysroot): + cmake_args += ["-DLLVM_BINUTILS_INCDIR=/usr/include"] + cmake_args += ["-DCMAKE_SYSROOT=%s" % sysroot] + # Work around the LLVM build system not building the i386 compiler-rt + # because it doesn't allow to use a sysroot for that during the cmake + # checks. + cmake_args += ["-DCAN_TARGET_i386=1"] + cmake_args += ["-DLLVM_ENABLE_TERMINFO=OFF"] + if is_windows(target): + cmake_args.insert(-1, "-DLLVM_EXPORT_SYMBOLS_FOR_PLUGINS=ON") + cmake_args.insert(-1, "-DCMAKE_MSVC_RUNTIME_LIBRARY=MultiThreaded") + if is_cross_compile(target): + cmake_args += [ + f"-DCMAKE_TOOLCHAIN_FILE={src_dir}/cmake/platforms/WinMsvc.cmake", + f"-DLLVM_NATIVE_TOOLCHAIN={os.path.dirname(os.path.dirname(cc[0]))}", + f"-DHOST_ARCH={target[: -len('-pc-windows-msvc')]}", + f"-DLLVM_WINSYSROOT={os.environ['VSINSTALLDIR']}", + "-DLLVM_DISABLE_ASSEMBLY_FILES=ON", + ] + else: + # libllvm as a shared library is not supported on Windows + cmake_args += ["-DLLVM_LINK_LLVM_DYLIB=ON"] + if ranlib is not None: + cmake_args += ["-DCMAKE_RANLIB=%s" % slashify_path(ranlib)] + if is_darwin(target) and is_cross_compile(target): + arch = "arm64" if target.startswith("aarch64") else "x86_64" + cmake_args += [ + "-DCMAKE_SYSTEM_NAME=Darwin", + "-DCMAKE_SYSTEM_VERSION=%s" % os.environ["MACOSX_DEPLOYMENT_TARGET"], + "-DCMAKE_OSX_SYSROOT=%s" % slashify_path(os.getenv("CROSS_SYSROOT")), + "-DCMAKE_FIND_ROOT_PATH=%s" % slashify_path(os.getenv("CROSS_SYSROOT")), + "-DCMAKE_FIND_ROOT_PATH_MODE_PROGRAM=NEVER", + "-DCMAKE_FIND_ROOT_PATH_MODE_LIBRARY=ONLY", + "-DCMAKE_FIND_ROOT_PATH_MODE_INCLUDE=ONLY", + "-DCMAKE_MACOSX_RPATH=ON", + "-DCMAKE_OSX_ARCHITECTURES=%s" % arch, + "-DDARWIN_osx_ARCHS=%s" % arch, + "-DDARWIN_osx_SYSROOT=%s" % slashify_path(os.getenv("CROSS_SYSROOT")), + "-DLLVM_DEFAULT_TARGET_TRIPLE=%s" % target, + "-DCMAKE_C_COMPILER_TARGET=%s" % target, + "-DCMAKE_CXX_COMPILER_TARGET=%s" % target, + "-DCMAKE_ASM_COMPILER_TARGET=%s" % target, + ] + if arch == "arm64": + cmake_args += [ + "-DDARWIN_osx_BUILTIN_ARCHS=arm64", + ] + # Starting in LLVM 11 (which requires SDK 10.12) the build tries to + # detect the SDK version by calling xcrun. Cross-compiles don't have + # an xcrun, so we have to set the version explicitly. + cmake_args += [ + "-DDARWIN_macosx_OVERRIDE_SDK_VERSION=%s" + % os.environ["MACOSX_DEPLOYMENT_TARGET"], + ] + + if profile == "gen": + # Per https://releases.llvm.org/10.0.0/docs/HowToBuildWithPGO.html + cmake_args += [ + "-DLLVM_BUILD_INSTRUMENTED=IR", + "-DLLVM_BUILD_RUNTIME=No", + ] + elif profile: + cmake_args += [ + "-DLLVM_PROFDATA_FILE=%s" % profile, + ] + + # Using LTO for both profile generation and usage to avoid most + # "function control flow change detected (hash mismatch)" error. + if profile and not is_windows(target): + cmake_args.append("-DLLVM_ENABLE_LTO=Thin") + return cmake_args + + cmake_args = [] + cmake_args += cmake_base_args(cc, cxx, asm, ar, ranlib, ldflags, inst_dir) + cmake_args += [src_dir] + build_package(build_dir, cmake_args) + + # For some reasons the import library clang.lib of clang.exe is not + # installed, so we copy it by ourselves. + if is_windows(target) and is_final_stage: + install_import_library(build_dir, inst_dir) + + +# Return the absolute path of a build tool. We first look to see if the +# variable is defined in the config file, and if so we make sure it's an +# absolute path to an existing tool, otherwise we look for a program in +# $PATH named "key". +# +# This expects the name of the key in the config file to match the name of +# the tool in the default toolchain on the system (for example, "ld" on Unix +# and "link" on Windows). +def get_tool(config, key): + f = None + if key in config: + f = config[key].format(**os.environ) + if os.path.isabs(f): + if not os.path.exists(f): + raise ValueError("%s must point to an existing path" % key) + return f + + # Assume that we have the name of some program that should be on PATH. + tool = which(f) if f else which(key) + if not tool: + raise ValueError("%s not found on PATH" % (f or key)) + return tool + + +# This function is intended to be called on the final build directory when +# building clang-tidy. Also clang-format binaries are included that can be used +# in conjunction with clang-tidy. +# As a separate binary we also ship clangd for the language server protocol that +# can be used as a plugin in `vscode`. +# Its job is to remove all of the files which won't be used for clang-tidy or +# clang-format to reduce the download size. Currently when this function +# finishes its job, it will leave final_dir with a layout like this: +# +# clang/ +# bin/ +# clang-apply-replacements +# clang-format +# clang-tidy +# clangd +# run-clang-tidy +# include/ +# * (nothing will be deleted here) +# lib/ +# clang/ +# 4.0.0/ +# include/ +# * (nothing will be deleted here) +# share/ +# clang/ +# clang-format-diff.py +# clang-tidy-diff.py +# run-clang-tidy.py +def prune_final_dir_for_clang_tidy(final_dir, target): + # Make sure we only have what we expect. + dirs = [ + "bin", + "include", + "lib", + "lib32", + "libexec", + "msbuild-bin", + "share", + "tools", + ] + if is_linux(target): + dirs.append("x86_64-unknown-linux-gnu") + for f in glob.glob("%s/*" % final_dir): + if os.path.basename(f) not in dirs: + raise Exception("Found unknown file %s in the final directory" % f) + if not os.path.isdir(f): + raise Exception("Expected %s to be a directory" % f) + + kept_binaries = [ + "clang-apply-replacements", + "clang-format", + "clang-tidy", + "clangd", + "clang-query", + "run-clang-tidy", + ] + re_clang_tidy = re.compile(r"^(" + "|".join(kept_binaries) + r")(\.exe)?$", re.I) + for f in glob.glob("%s/bin/*" % final_dir): + if re_clang_tidy.search(os.path.basename(f)) is None: + delete(f) + + # Keep include/ intact. + + # Remove the target-specific files. + if is_linux(target): + if os.path.exists(os.path.join(final_dir, "x86_64-unknown-linux-gnu")): + shutil.rmtree(os.path.join(final_dir, "x86_64-unknown-linux-gnu")) + + # In lib/, only keep lib/clang/N.M.O/include and the LLVM shared library. + re_ver_num = re.compile(r"^\d+(?:\.\d+\.\d+)?$", re.I) + for f in glob.glob("%s/lib/*" % final_dir): + name = os.path.basename(f) + if name == "clang": + continue + if is_darwin(target) and name in ["libLLVM.dylib", "libclang-cpp.dylib"]: + continue + if is_linux(target) and ( + fnmatch.fnmatch(name, "libLLVM*.so") + or fnmatch.fnmatch(name, "libclang-cpp.so*") + ): + continue + delete(f) + for f in glob.glob("%s/lib/clang/*" % final_dir): + if re_ver_num.search(os.path.basename(f)) is None: + delete(f) + for f in glob.glob("%s/lib/clang/*/*" % final_dir): + if os.path.basename(f) != "include": + delete(f) + + # Completely remove libexec/, msbuild-bin and tools, if it exists. + shutil.rmtree(os.path.join(final_dir, "libexec")) + for d in ("msbuild-bin", "tools"): + d = os.path.join(final_dir, d) + if os.path.exists(d): + shutil.rmtree(d) + + # In share/, only keep share/clang/*tidy* + re_clang_tidy = re.compile(r"format|tidy", re.I) + for f in glob.glob("%s/share/*" % final_dir): + if os.path.basename(f) != "clang": + delete(f) + for f in glob.glob("%s/share/clang/*" % final_dir): + if re_clang_tidy.search(os.path.basename(f)) is None: + delete(f) + + +def main(): + parser = argparse.ArgumentParser() + parser.add_argument( + "-c", + "--config", + action="append", + required=True, + type=argparse.FileType("r"), + help="Clang configuration file", + ) + parser.add_argument( + "--clean", required=False, action="store_true", help="Clean the build directory" + ) + parser.add_argument( + "--skip-tar", + required=False, + action="store_true", + help="Skip tar packaging stage", + ) + parser.add_argument( + "--skip-patch", + required=False, + action="store_true", + help="Do not patch source", + ) + + args = parser.parse_args() + + if not os.path.exists("llvm/README.txt"): + raise Exception( + "The script must be run from the root directory of the llvm-project tree" + ) + source_dir = os.getcwd() + build_dir = source_dir + "/build" + + if args.clean: + shutil.rmtree(build_dir) + os.sys.exit(0) + + llvm_source_dir = source_dir + "/llvm" + + config = {} + # Merge all the configs we got from the command line. + for c in args.config: + this_config_dir = os.path.dirname(c.name) + this_config = json.load(c) + patches = this_config.get("patches") + if patches: + this_config["patches"] = [os.path.join(this_config_dir, p) for p in patches] + for key, value in this_config.items(): + old_value = config.get(key) + if old_value is None: + config[key] = value + elif value is None: + if key in config: + del config[key] + elif type(old_value) != type(value): + raise Exception( + "{} is overriding `{}` with a value of the wrong type".format( + c.name, key + ) + ) + elif isinstance(old_value, list): + for v in value: + if v not in old_value: + old_value.append(v) + elif isinstance(old_value, dict): + raise Exception("{} is setting `{}` to a dict?".format(c.name, key)) + else: + config[key] = value + + stages = 2 + if "stages" in config: + stages = int(config["stages"]) + if stages not in (1, 2, 3, 4): + raise ValueError("We only know how to build 1, 2, 3, or 4 stages.") + skip_stages = 0 + if "skip_stages" in config: + # The assumption here is that the compiler given in `cc` and other configs + # is the result of the last skip stage, built somewhere else. + skip_stages = int(config["skip_stages"]) + if skip_stages >= stages: + raise ValueError("Cannot skip more stages than are built.") + pgo = False + if "pgo" in config: + pgo = config["pgo"] + if pgo not in (True, False): + raise ValueError("Only boolean values are accepted for pgo.") + build_type = "Release" + if "build_type" in config: + build_type = config["build_type"] + if build_type not in ("Release", "Debug", "RelWithDebInfo", "MinSizeRel"): + raise ValueError( + "We only know how to do Release, Debug, RelWithDebInfo or " + "MinSizeRel builds" + ) + targets = config.get("targets") + build_clang_tidy = False + if "build_clang_tidy" in config: + build_clang_tidy = config["build_clang_tidy"] + if build_clang_tidy not in (True, False): + raise ValueError("Only boolean values are accepted for build_clang_tidy.") + build_clang_tidy_alpha = False + # check for build_clang_tidy_alpha only if build_clang_tidy is true + if build_clang_tidy and "build_clang_tidy_alpha" in config: + build_clang_tidy_alpha = config["build_clang_tidy_alpha"] + if build_clang_tidy_alpha not in (True, False): + raise ValueError( + "Only boolean values are accepted for build_clang_tidy_alpha." + ) + build_clang_tidy_external = False + # check for build_clang_tidy_external only if build_clang_tidy is true + if build_clang_tidy and "build_clang_tidy_external" in config: + build_clang_tidy_external = config["build_clang_tidy_external"] + if build_clang_tidy_external not in (True, False): + raise ValueError( + "Only boolean values are accepted for build_clang_tidy_external." + ) + assertions = False + if "assertions" in config: + assertions = config["assertions"] + if assertions not in (True, False): + raise ValueError("Only boolean values are accepted for assertions.") + + for t in SUPPORTED_TARGETS: + if not is_cross_compile(t): + host = t + break + else: + raise Exception( + f"Cannot use this script on {platform.system()} {platform.machine()}" + ) + + target = config.get("target", host) + if target not in SUPPORTED_TARGETS: + raise ValueError(f"{target} is not a supported target.") + + if is_cross_compile(target) and not is_linux(host): + raise Exception("Cross-compilation is only supported on Linux") + + if is_darwin(target): + os.environ["MACOSX_DEPLOYMENT_TARGET"] = ( + "11.0" if target.startswith("aarch64") else "10.12" + ) + + if is_windows(target): + exe_ext = ".exe" + cc_name = "clang-cl" + cxx_name = "clang-cl" + else: + exe_ext = "" + cc_name = "clang" + cxx_name = "clang++" + + cc = get_tool(config, "cc") + cxx = get_tool(config, "cxx") + asm = get_tool(config, "ml" if is_windows(target) else "as") + # Not using lld here as default here because it's not in PATH. But clang + # knows how to find it when they are installed alongside each others. + ar = get_tool(config, "lib" if is_windows(target) else "ar") + ranlib = None if is_windows(target) else get_tool(config, "ranlib") + + if not os.path.exists(source_dir): + os.makedirs(source_dir) + + if not args.skip_patch: + for p in config.get("patches", []): + patch(p, source_dir) + + package_name = "clang" + if build_clang_tidy: + package_name = "clang-tidy" + if not args.skip_patch: + import_clang_tidy( + source_dir, build_clang_tidy_alpha, build_clang_tidy_external + ) + + if not os.path.exists(build_dir): + os.makedirs(build_dir) + + stage1_dir = build_dir + "/stage1" + stage1_inst_dir = stage1_dir + "/" + package_name + + final_stage_dir = stage1_dir + + if is_darwin(target): + extra_cflags = [] + extra_cxxflags = [] + extra_cflags2 = [] + extra_cxxflags2 = [] + extra_asmflags = [] + # It's unfortunately required to specify the linker used here because + # the linker flags are used in LLVM's configure step before + # -DLLVM_ENABLE_LLD is actually processed. + extra_ldflags = [ + "-fuse-ld=lld", + "-Wl,-dead_strip", + ] + elif is_linux(target): + extra_cflags = [] + extra_cxxflags = [] + extra_cflags2 = ["-fPIC"] + # Silence clang's warnings about arguments not being used in compilation. + extra_cxxflags2 = [ + "-fPIC", + "-Qunused-arguments", + ] + extra_asmflags = [] + # Avoid libLLVM internal function calls going through the PLT. + extra_ldflags = ["-Wl,-Bsymbolic-functions"] + # For whatever reason, LLVM's build system will set things up to turn + # on -ffunction-sections and -fdata-sections, but won't turn on the + # corresponding option to strip unused sections. We do it explicitly + # here. LLVM's build system is also picky about turning on ICF, so + # we do that explicitly here, too. + + # It's unfortunately required to specify the linker used here because + # the linker flags are used in LLVM's configure step before + # -DLLVM_ENABLE_LLD is actually processed. + if is_llvm_toolchain(cc, cxx): + extra_ldflags += ["-fuse-ld=lld", "-Wl,--icf=safe"] + extra_ldflags += ["-Wl,--gc-sections"] + elif is_windows(target): + extra_cflags = [] + extra_cxxflags = [] + # clang-cl would like to figure out what it's supposed to be emulating + # by looking at an MSVC install, but we don't really have that here. + # Force things on based on WinMsvc.cmake. + # Ideally, we'd just use WinMsvc.cmake as a toolchain file, but it only + # really works for cross-compiles, which this is not. + with open(os.path.join(llvm_source_dir, "cmake/platforms/WinMsvc.cmake")) as f: + compat = [ + item + for line in f + for item in line.split() + if "-fms-compatibility-version=" in item + ][0] + extra_cflags2 = [compat] + extra_cxxflags2 = [compat] + extra_asmflags = [] + extra_ldflags = [] + + upload_dir = os.getenv("UPLOAD_DIR") + if assertions and upload_dir: + extra_cflags2 += ["-fcrash-diagnostics-dir=%s" % upload_dir] + extra_cxxflags2 += ["-fcrash-diagnostics-dir=%s" % upload_dir] + + if skip_stages < 1: + build_one_stage( + [cc] + extra_cflags, + [cxx] + extra_cxxflags, + [asm] + extra_asmflags, + ar, + ranlib, + extra_ldflags, + llvm_source_dir, + stage1_dir, + package_name, + build_type, + assertions, + target, + targets, + is_final_stage=(stages == 1), + ) + + if stages >= 2 and skip_stages < 2: + stage2_dir = build_dir + "/stage2" + stage2_inst_dir = stage2_dir + "/" + package_name + final_stage_dir = stage2_dir + if skip_stages < 1: + cc = stage1_inst_dir + "/bin/%s%s" % (cc_name, exe_ext) + cxx = stage1_inst_dir + "/bin/%s%s" % (cxx_name, exe_ext) + asm = stage1_inst_dir + "/bin/%s%s" % (cc_name, exe_ext) + build_one_stage( + [cc] + extra_cflags2, + [cxx] + extra_cxxflags2, + [asm] + extra_asmflags, + ar, + ranlib, + extra_ldflags, + llvm_source_dir, + stage2_dir, + package_name, + build_type, + assertions, + target, + targets, + is_final_stage=(stages == 2), + profile="gen" if pgo else None, + ) + + if stages >= 3 and skip_stages < 3: + stage3_dir = build_dir + "/stage3" + stage3_inst_dir = stage3_dir + "/" + package_name + final_stage_dir = stage3_dir + if skip_stages < 2: + cc = stage2_inst_dir + "/bin/%s%s" % (cc_name, exe_ext) + cxx = stage2_inst_dir + "/bin/%s%s" % (cxx_name, exe_ext) + asm = stage2_inst_dir + "/bin/%s%s" % (cc_name, exe_ext) + build_one_stage( + [cc] + extra_cflags2, + [cxx] + extra_cxxflags2, + [asm] + extra_asmflags, + ar, + ranlib, + extra_ldflags, + llvm_source_dir, + stage3_dir, + package_name, + build_type, + assertions, + target, + targets, + (stages == 3), + ) + if pgo: + llvm_profdata = stage2_inst_dir + "/bin/llvm-profdata%s" % exe_ext + merge_cmd = [llvm_profdata, "merge", "-o", "merged.profdata"] + profraw_files = glob.glob( + os.path.join(stage2_dir, "build", "profiles", "*.profraw") + ) + run_in(stage3_dir, merge_cmd + profraw_files) + if stages == 3: + mkdir_p(upload_dir) + shutil.copy2(os.path.join(stage3_dir, "merged.profdata"), upload_dir) + return + + if stages >= 4 and skip_stages < 4: + stage4_dir = build_dir + "/stage4" + final_stage_dir = stage4_dir + profile = None + if pgo: + if skip_stages == 3: + profile_dir = os.environ.get("MOZ_FETCHES_DIR", "") + else: + profile_dir = stage3_dir + profile = os.path.join(profile_dir, "merged.profdata") + if skip_stages < 3: + cc = stage3_inst_dir + "/bin/%s%s" % (cc_name, exe_ext) + cxx = stage3_inst_dir + "/bin/%s%s" % (cxx_name, exe_ext) + asm = stage3_inst_dir + "/bin/%s%s" % (cc_name, exe_ext) + build_one_stage( + [cc] + extra_cflags2, + [cxx] + extra_cxxflags2, + [asm] + extra_asmflags, + ar, + ranlib, + extra_ldflags, + llvm_source_dir, + stage4_dir, + package_name, + build_type, + assertions, + target, + targets, + (stages == 4), + profile=profile, + ) + + if build_clang_tidy: + prune_final_dir_for_clang_tidy( + os.path.join(final_stage_dir, package_name), target + ) + + if not args.skip_tar: + build_tar_package("%s.tar.zst" % package_name, final_stage_dir, package_name) + + +if __name__ == "__main__": + main() |