426 lines
14 KiB
Python
426 lines
14 KiB
Python
#!/usr/bin/python2.7
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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import os
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import os.path
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import shutil
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import subprocess
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import platform
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import json
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import argparse
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import tempfile
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import glob
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import errno
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import re
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from contextlib import contextmanager
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import sys
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import which
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DEBUG = os.getenv("DEBUG")
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def symlink(source, link_name):
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os_symlink = getattr(os, "symlink", None)
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if callable(os_symlink):
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os_symlink(source, link_name)
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else:
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if os.path.isdir(source):
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# Fall back to copying the directory :(
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copy_dir_contents(source, link_name)
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def check_run(args):
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global DEBUG
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if DEBUG:
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print >> sys.stderr, ' '.join(args)
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r = subprocess.call(args)
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assert r == 0
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def run_in(path, args):
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d = os.getcwd()
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global DEBUG
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if DEBUG:
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print >> sys.stderr, 'cd "%s"' % path
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os.chdir(path)
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check_run(args)
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if DEBUG:
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print >> sys.stderr, 'cd "%s"' % d
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os.chdir(d)
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def patch(patch, srcdir):
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patch = os.path.realpath(patch)
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check_run(['patch', '-d', srcdir, '-p1', '-i', patch, '--fuzz=0',
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'-s'])
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def build_package(package_build_dir, run_cmake, cmake_args):
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if not os.path.exists(package_build_dir):
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os.mkdir(package_build_dir)
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if run_cmake:
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run_in(package_build_dir, ["cmake"] + cmake_args)
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run_in(package_build_dir, ["ninja", "install"])
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@contextmanager
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def updated_env(env):
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old_env = os.environ.copy()
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os.environ.update(env)
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yield
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os.environ.clear()
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os.environ.update(old_env)
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def build_tar_package(tar, name, base, directory):
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name = os.path.realpath(name)
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# On Windows, we have to convert this into an msys path so that tar can
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# understand it.
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if is_windows():
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name = name.replace('\\', '/')
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def f(match):
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return '/' + match.group(1).lower()
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name = re.sub(r'^([A-Z]):', f, name)
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run_in(base, [tar,
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"-c",
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"-%s" % ("J" if ".xz" in name else "j"),
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"-f",
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name, directory])
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def copy_dir_contents(src, dest):
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for f in glob.glob("%s/*" % src):
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try:
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destname = "%s/%s" % (dest, os.path.basename(f))
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if os.path.isdir(f):
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shutil.copytree(f, destname)
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else:
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shutil.copy2(f, destname)
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except OSError as e:
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if e.errno == errno.ENOTDIR:
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shutil.copy2(f, destname)
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elif e.errno == errno.EEXIST:
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if os.path.isdir(f):
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copy_dir_contents(f, destname)
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else:
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os.remove(destname)
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shutil.copy2(f, destname)
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else:
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raise Exception('Directory not copied. Error: %s' % e)
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def mkdir_p(path):
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try:
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os.makedirs(path)
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except OSError as e:
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if e.errno != errno.EEXIST or not os.path.isdir(path):
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raise
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def install_libgcc(gcc_dir, clang_dir):
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out = subprocess.check_output([os.path.join(gcc_dir, "bin", "gcc"),
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'-print-libgcc-file-name'])
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libgcc_dir = os.path.dirname(out.rstrip())
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clang_lib_dir = os.path.join(clang_dir, "lib", "gcc",
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"x86_64-unknown-linux-gnu",
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os.path.basename(libgcc_dir))
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mkdir_p(clang_lib_dir)
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copy_dir_contents(libgcc_dir, clang_lib_dir)
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libgcc_dir = os.path.join(gcc_dir, "lib64")
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clang_lib_dir = os.path.join(clang_dir, "lib")
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copy_dir_contents(libgcc_dir, clang_lib_dir)
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include_dir = os.path.join(gcc_dir, "include")
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clang_include_dir = os.path.join(clang_dir, "include")
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copy_dir_contents(include_dir, clang_include_dir)
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def svn_co(source_dir, url, directory, revision):
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run_in(source_dir, ["svn", "co", "-q", "-r", revision, url, directory])
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def svn_update(directory, revision):
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run_in(directory, ["svn", "update", "-q", "-r", revision])
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def get_platform():
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p = platform.system()
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if p == "Darwin":
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return "macosx64"
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elif p == "Linux":
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if platform.architecture() == "AMD64":
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return "linux64"
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else:
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return "linux32"
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elif p == "Windows":
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if platform.architecture() == "AMD64":
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return "win64"
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else:
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return "win32"
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else:
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raise NotImplementedError("Not supported platform")
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def is_darwin():
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return platform.system() == "Darwin"
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def is_linux():
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return platform.system() == "Linux"
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def is_windows():
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return platform.system() == "Windows"
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def build_one_stage(cc, cxx, src_dir, stage_dir, build_libcxx,
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build_type, assertions, python_path, gcc_dir):
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if not os.path.exists(stage_dir):
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os.mkdir(stage_dir)
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build_dir = stage_dir + "/build"
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inst_dir = stage_dir + "/clang"
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run_cmake = True
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if os.path.exists(build_dir + "/build.ninja"):
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run_cmake = False
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# cmake doesn't deal well with backslashes in paths.
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def slashify_path(path):
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return path.replace('\\', '/')
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cmake_args = ["-GNinja",
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"-DCMAKE_C_COMPILER=%s" % slashify_path(cc[0]),
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"-DCMAKE_CXX_COMPILER=%s" % slashify_path(cxx[0]),
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"-DCMAKE_ASM_COMPILER=%s" % slashify_path(cc[0]),
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"-DCMAKE_C_FLAGS=%s" % ' '.join(cc[1:]),
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"-DCMAKE_CXX_FLAGS=%s" % ' '.join(cxx[1:]),
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"-DCMAKE_BUILD_TYPE=%s" % build_type,
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"-DLLVM_TARGETS_TO_BUILD=X86;ARM",
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"-DLLVM_ENABLE_ASSERTIONS=%s" % ("ON" if assertions else "OFF"),
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"-DPYTHON_EXECUTABLE=%s" % slashify_path(python_path),
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"-DCMAKE_INSTALL_PREFIX=%s" % inst_dir,
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"-DLLVM_TOOL_LIBCXX_BUILD=%s" % ("ON" if build_libcxx else "OFF"),
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"-DLIBCXX_LIBCPPABI_VERSION=\"\"",
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src_dir];
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build_package(build_dir, run_cmake, cmake_args)
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if is_linux():
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install_libgcc(gcc_dir, inst_dir)
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def get_compiler(config, key):
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if key not in config:
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raise ValueError("Config file needs to set %s" % key)
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f = config[key]
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if os.path.isabs(f):
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if not os.path.exists(f):
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raise ValueError("%s must point to an existing path" % key)
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return f
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# Assume that we have the name of some program that should be on PATH.
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try:
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return which.which(f)
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except which.WhichError:
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raise ValueError("%s not found on PATH" % f)
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if __name__ == "__main__":
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# The directories end up in the debug info, so the easy way of getting
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# a reproducible build is to run it in a know absolute directory.
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# We use a directory in /builds/slave because the mozilla infrastructure
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# cleans it up automatically.
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base_dir = "/builds/slave/moz-toolchain"
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if is_windows():
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# TODO: Because Windows taskcluster builds are run with distinct
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# user IDs for each job, we can't store things in some globally
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# accessible directory: one job will run, checkout LLVM to that
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# directory, and then if another job runs, the new user won't be
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# able to access the previously-checked out code--or be able to
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# delete it. So on Windows, we build in the task-specific home
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# directory; we will eventually add -fdebug-prefix-map options
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# to the LLVM build to bring back reproducibility.
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base_dir = os.path.join(os.getcwd(), 'llvm-sources')
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source_dir = base_dir + "/src"
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build_dir = base_dir + "/build"
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llvm_source_dir = source_dir + "/llvm"
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clang_source_dir = source_dir + "/clang"
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compiler_rt_source_dir = source_dir + "/compiler-rt"
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libcxx_source_dir = source_dir + "/libcxx"
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libcxxabi_source_dir = source_dir + "/libcxxabi"
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if is_darwin():
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os.environ['MACOSX_DEPLOYMENT_TARGET'] = '10.7'
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exe_ext = ""
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if is_windows():
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exe_ext = ".exe"
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cc_name = "clang"
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cxx_name = "clang++"
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if is_windows():
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cc_name = "clang-cl"
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cxx_name = "clang-cl"
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parser = argparse.ArgumentParser()
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parser.add_argument('-c', '--config', required=True,
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type=argparse.FileType('r'),
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help="Clang configuration file")
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parser.add_argument('--clean', required=False,
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action='store_true',
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help="Clean the build directory")
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args = parser.parse_args()
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config = json.load(args.config)
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if args.clean:
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shutil.rmtree(build_dir)
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os.sys.exit(0)
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llvm_revision = config["llvm_revision"]
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llvm_repo = config["llvm_repo"]
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clang_repo = config["clang_repo"]
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compiler_repo = config["compiler_repo"]
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libcxx_repo = config["libcxx_repo"]
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libcxxabi_repo = config.get("libcxxabi_repo")
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stages = 3
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if "stages" in config:
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stages = int(config["stages"])
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if stages not in (1, 2, 3):
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raise ValueError("We only know how to build 1, 2, or 3 stages")
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build_type = "Release"
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if "build_type" in config:
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build_type = config["build_type"]
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if build_type not in ("Release", "Debug", "RelWithDebInfo", "MinSizeRel"):
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raise ValueError("We only know how to do Release, Debug, RelWithDebInfo or MinSizeRel builds")
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build_libcxx = False
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if "build_libcxx" in config:
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build_libcxx = config["build_libcxx"]
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if build_libcxx not in (True, False):
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raise ValueError("Only boolean values are accepted for build_libcxx.")
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assertions = False
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if "assertions" in config:
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assertions = config["assertions"]
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if assertions not in (True, False):
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raise ValueError("Only boolean values are accepted for assertions.")
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python_path = None
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if "python_path" not in config:
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raise ValueError("Config file needs to set python_path")
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python_path = config["python_path"]
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gcc_dir = None
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if "gcc_dir" in config:
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gcc_dir = config["gcc_dir"]
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if not os.path.exists(gcc_dir):
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raise ValueError("gcc_dir must point to an existing path")
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if is_linux() and gcc_dir is None:
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raise ValueError("Config file needs to set gcc_dir")
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cc = get_compiler(config, "cc")
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cxx = get_compiler(config, "cxx")
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if not os.path.exists(source_dir):
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os.makedirs(source_dir)
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svn_co(source_dir, llvm_repo, llvm_source_dir, llvm_revision)
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svn_co(source_dir, clang_repo, clang_source_dir, llvm_revision)
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svn_co(source_dir, compiler_repo, compiler_rt_source_dir, llvm_revision)
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svn_co(source_dir, libcxx_repo, libcxx_source_dir, llvm_revision)
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if libcxxabi_repo:
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svn_co(source_dir, libcxxabi_repo, libcxxabi_source_dir, llvm_revision)
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for p in config.get("patches", {}).get(get_platform(), []):
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patch(p, source_dir)
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else:
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svn_update(llvm_source_dir, llvm_revision)
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svn_update(clang_source_dir, llvm_revision)
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svn_update(compiler_rt_source_dir, llvm_revision)
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svn_update(libcxx_source_dir, llvm_revision)
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if libcxxabi_repo:
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svn_update(libcxxabi_source_dir, llvm_revision)
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symlinks = [(source_dir + "/clang",
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llvm_source_dir + "/tools/clang"),
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(source_dir + "/compiler-rt",
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llvm_source_dir + "/projects/compiler-rt"),
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(source_dir + "/libcxx",
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llvm_source_dir + "/projects/libcxx"),
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(source_dir + "/libcxxabi",
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llvm_source_dir + "/projects/libcxxabi")]
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for l in symlinks:
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# On Windows, we have to re-copy the whole directory every time.
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if not is_windows() and os.path.islink(l[1]):
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continue
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if os.path.isdir(l[1]):
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shutil.rmtree(l[1])
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elif os.path.exists(l[1]):
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os.unlink(l[1])
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if os.path.exists(l[0]):
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symlink(l[0], l[1])
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if not os.path.exists(build_dir):
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os.makedirs(build_dir)
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stage1_dir = build_dir + '/stage1'
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stage1_inst_dir = stage1_dir + '/clang'
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final_stage_dir = stage1_dir
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if is_darwin():
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extra_cflags = []
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extra_cxxflags = ["-stdlib=libc++"]
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extra_cflags2 = []
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extra_cxxflags2 = ["-stdlib=libc++"]
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elif is_linux():
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extra_cflags = ["-static-libgcc"]
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extra_cxxflags = ["-static-libgcc", "-static-libstdc++"]
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extra_cflags2 = ["-fPIC"]
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extra_cxxflags2 = ["-fPIC", "-static-libstdc++"]
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if os.environ.has_key('LD_LIBRARY_PATH'):
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os.environ['LD_LIBRARY_PATH'] = '%s/lib64/:%s' % (gcc_dir, os.environ['LD_LIBRARY_PATH']);
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else:
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os.environ['LD_LIBRARY_PATH'] = '%s/lib64/' % gcc_dir
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elif is_windows():
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extra_cflags = []
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extra_cxxflags = []
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# clang-cl would like to figure out what it's supposed to be emulating
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# by looking at an MSVC install, but we don't really have that here.
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# Force things on.
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extra_cflags2 = []
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extra_cxxflags2 = ['-fms-compatibility-version=19.00.24213', '-Xclang', '-std=c++14']
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build_one_stage(
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[cc] + extra_cflags,
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[cxx] + extra_cxxflags,
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llvm_source_dir, stage1_dir, build_libcxx,
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build_type, assertions, python_path, gcc_dir)
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if stages > 1:
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stage2_dir = build_dir + '/stage2'
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stage2_inst_dir = stage2_dir + '/clang'
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final_stage_dir = stage2_dir
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build_one_stage(
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[stage1_inst_dir + "/bin/%s%s" %
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(cc_name, exe_ext)] + extra_cflags2,
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[stage1_inst_dir + "/bin/%s%s" %
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(cxx_name, exe_ext)] + extra_cxxflags2,
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llvm_source_dir, stage2_dir, build_libcxx,
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build_type, assertions, python_path, gcc_dir)
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if stages > 2:
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stage3_dir = build_dir + '/stage3'
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final_stage_dir = stage3_dir
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build_one_stage(
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[stage2_inst_dir + "/bin/%s%s" %
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(cc_name, exe_ext)] + extra_cflags2,
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[stage2_inst_dir + "/bin/%s%s" %
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(cxx_name, exe_ext)] + extra_cxxflags2,
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llvm_source_dir, stage3_dir, build_libcxx,
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build_type, assertions, python_path, gcc_dir)
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if is_darwin() or is_windows():
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build_tar_package("tar", "clang.tar.bz2", final_stage_dir, "clang")
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else:
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build_tar_package("tar", "clang.tar.xz", final_stage_dir, "clang")
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