efe5d5fe9d
LLDB has many branches in a variety of repositories. The build-script.py file is subtly different for each set. This is unnecessary and causes merge headaches. This patch makes build-llvm.py consult a directory full of .json files, each one of which matches a particular branch using a regular expression. This update to the patch introduces a FALLBACK file whose contents take precedence if the current branch could not be identified. If the current branch could be identified, FALLBACK is updated, allowing the user to e.g. cut branches off of known branches and still have the automatic checkout mechanism work. It also documents all of this. Differential revision: https://reviews.llvm.org/D30275 llvm-svn: 295922
438 lines
12 KiB
Python
Executable File
438 lines
12 KiB
Python
Executable File
#!/usr/bin/env python
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import errno
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import hashlib
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import fnmatch
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import os
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import platform
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import re
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import repo
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import subprocess
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import sys
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from lldbbuild import *
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#### SETTINGS ####
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def LLVM_HASH_INCLUDES_DIFFS():
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return False
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# For use with Xcode-style builds
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def process_vcs(vcs):
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return {
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"svn": VCS.svn,
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"git": VCS.git
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}[vcs]
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def process_root(name):
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return {
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"llvm": llvm_source_path(),
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"clang": clang_source_path(),
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"ninja": ninja_source_path()
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}[name]
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def process_repo(r):
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return {
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'name': r["name"],
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'vcs': process_vcs(r["vcs"]),
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'root': process_root(r["name"]),
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'url': r["url"],
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'ref': r["ref"]
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}
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def XCODE_REPOSITORIES():
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identifier = repo.identifier()
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if identifier == None:
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identifier = "<invalid>" # repo.find will just use the fallback file
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set = repo.find(identifier)
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return [process_repo(r) for r in set]
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def get_c_compiler():
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return subprocess.check_output([
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'xcrun',
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'--sdk', 'macosx',
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'-find', 'clang'
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]).rstrip()
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def get_cxx_compiler():
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return subprocess.check_output([
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'xcrun',
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'--sdk', 'macosx',
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'-find', 'clang++'
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]).rstrip()
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# CFLAGS="-isysroot $(xcrun --sdk macosx --show-sdk-path) -mmacosx-version-min=${DARWIN_DEPLOYMENT_VERSION_OSX}" \
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# LDFLAGS="-mmacosx-version-min=${DARWIN_DEPLOYMENT_VERSION_OSX}" \
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def get_deployment_target():
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return os.environ.get('MACOSX_DEPLOYMENT_TARGET', None)
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def get_c_flags():
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cflags = ''
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# sdk_path = subprocess.check_output([
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# 'xcrun',
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# '--sdk', 'macosx',
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# '--show-sdk-path']).rstrip()
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# cflags += '-isysroot {}'.format(sdk_path)
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deployment_target = get_deployment_target()
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if deployment_target:
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# cflags += ' -mmacosx-version-min={}'.format(deployment_target)
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pass
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return cflags
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def get_cxx_flags():
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return get_c_flags()
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def get_common_linker_flags():
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linker_flags = ""
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deployment_target = get_deployment_target()
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if deployment_target:
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# if len(linker_flags) > 0:
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# linker_flags += ' '
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# linker_flags += '-mmacosx-version-min={}'.format(deployment_target)
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pass
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return linker_flags
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def get_exe_linker_flags():
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return get_common_linker_flags()
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def get_shared_linker_flags():
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return get_common_linker_flags()
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def CMAKE_FLAGS():
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return {
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"Debug": [
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"-DCMAKE_BUILD_TYPE=RelWithDebInfo",
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"-DLLVM_ENABLE_ASSERTIONS=ON",
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],
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"DebugClang": [
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"-DCMAKE_BUILD_TYPE=Debug",
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"-DLLVM_ENABLE_ASSERTIONS=ON",
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],
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"Release": [
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"-DCMAKE_BUILD_TYPE=Release",
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"-DLLVM_ENABLE_ASSERTIONS=ON",
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],
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"BuildAndIntegration": [
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"-DCMAKE_BUILD_TYPE=Release",
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"-DLLVM_ENABLE_ASSERTIONS=OFF",
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],
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}
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def CMAKE_ENVIRONMENT():
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return {
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}
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#### COLLECTING ALL ARCHIVES ####
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def collect_archives_in_path(path):
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files = os.listdir(path)
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# Only use libclang and libLLVM archives, and exclude libclang_rt
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regexp = "^lib(clang[^_]|LLVM|gtest).*$"
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return [
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os.path.join(
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path,
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file) for file in files if file.endswith(".a") and re.match(
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regexp,
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file)]
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def archive_list():
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paths = library_paths()
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archive_lists = [collect_archives_in_path(path) for path in paths]
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return [archive for archive_list in archive_lists for archive in archive_list]
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def write_archives_txt():
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f = open(archives_txt(), 'w')
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for archive in archive_list():
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f.write(archive + "\n")
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f.close()
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#### COLLECTING REPOSITORY MD5S ####
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def source_control_status(spec):
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vcs_for_spec = vcs(spec)
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if LLVM_HASH_INCLUDES_DIFFS():
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return vcs_for_spec.status() + vcs_for_spec.diff()
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else:
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return vcs_for_spec.status()
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def source_control_status_for_specs(specs):
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statuses = [source_control_status(spec) for spec in specs]
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return "".join(statuses)
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def all_source_control_status():
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return source_control_status_for_specs(XCODE_REPOSITORIES())
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def md5(string):
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m = hashlib.md5()
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m.update(string)
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return m.hexdigest()
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def all_source_control_status_md5():
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return md5(all_source_control_status())
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#### CHECKING OUT AND BUILDING LLVM ####
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def apply_patches(spec):
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files = os.listdir(os.path.join(lldb_source_path(), 'scripts'))
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patches = [
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f for f in files if fnmatch.fnmatch(
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f, spec['name'] + '.*.diff')]
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for p in patches:
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run_in_directory(["patch",
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"-p0",
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"-i",
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os.path.join(lldb_source_path(),
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'scripts',
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p)],
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spec['root'])
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def check_out_if_needed(spec):
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if not os.path.isdir(spec['root']):
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vcs(spec).check_out()
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apply_patches(spec)
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def all_check_out_if_needed():
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map(check_out_if_needed, XCODE_REPOSITORIES())
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def should_build_llvm():
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if build_type() == BuildType.Xcode:
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# TODO use md5 sums
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return True
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def do_symlink(source_path, link_path):
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print "Symlinking " + source_path + " to " + link_path
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if not os.path.exists(link_path):
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os.symlink(source_path, link_path)
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def setup_source_symlink(repo):
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source_path = repo["root"]
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link_path = os.path.join(lldb_source_path(), os.path.basename(source_path))
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do_symlink(source_path, link_path)
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def setup_source_symlinks():
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map(setup_source_symlink, XCODE_REPOSITORIES())
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def setup_build_symlink():
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# We don't use the build symlinks in llvm.org Xcode-based builds.
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if build_type() != BuildType.Xcode:
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source_path = package_build_path()
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link_path = expected_package_build_path()
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do_symlink(source_path, link_path)
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def should_run_cmake(cmake_build_dir):
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# We need to run cmake if our llvm build directory doesn't yet exist.
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if not os.path.exists(cmake_build_dir):
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return True
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# Wee also need to run cmake if for some reason we don't have a ninja
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# build file. (Perhaps the cmake invocation failed, which this current
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# build may have fixed).
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ninja_path = os.path.join(cmake_build_dir, "build.ninja")
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return not os.path.exists(ninja_path)
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def cmake_environment():
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cmake_env = join_dicts(os.environ, CMAKE_ENVIRONMENT())
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return cmake_env
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def is_executable(path):
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return os.path.isfile(path) and os.access(path, os.X_OK)
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def find_executable_in_paths(program, paths_to_check):
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program_dir, program_name = os.path.split(program)
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if program_dir:
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if is_executable(program):
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return program
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else:
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for path_dir in paths_to_check:
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path_dir = path_dir.strip('"')
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executable_file = os.path.join(path_dir, program)
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if is_executable(executable_file):
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return executable_file
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return None
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def find_cmake():
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# First check the system PATH env var for cmake
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cmake_binary = find_executable_in_paths(
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"cmake", os.environ["PATH"].split(os.pathsep))
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if cmake_binary:
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# We found it there, use it.
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return cmake_binary
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# Check a few more common spots. Xcode launched from Finder
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# will have the default environment, and may not have
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# all the normal places present.
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extra_cmake_dirs = [
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"/usr/local/bin",
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"/opt/local/bin",
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os.path.join(os.path.expanduser("~"), "bin")
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]
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if platform.system() == "Darwin":
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# Add locations where an official CMake.app package may be installed.
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extra_cmake_dirs.extend([
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os.path.join(
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os.path.expanduser("~"),
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"Applications",
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"CMake.app",
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"Contents",
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"bin"),
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os.path.join(
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os.sep,
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"Applications",
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"CMake.app",
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"Contents",
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"bin")])
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cmake_binary = find_executable_in_paths("cmake", extra_cmake_dirs)
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if cmake_binary:
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# We found it in one of the usual places. Use that.
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return cmake_binary
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# We couldn't find cmake. Tell the user what to do.
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raise Exception(
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"could not find cmake in PATH ({}) or in any of these locations ({}), "
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"please install cmake or add a link to it in one of those locations".format(
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os.environ["PATH"], extra_cmake_dirs))
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def cmake_flags():
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cmake_flags = CMAKE_FLAGS()[lldb_configuration()]
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cmake_flags += ["-GNinja",
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"-DCMAKE_C_COMPILER={}".format(get_c_compiler()),
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"-DCMAKE_CXX_COMPILER={}".format(get_cxx_compiler()),
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"-DCMAKE_INSTALL_PREFIX={}".format(expected_package_build_path_for("llvm")),
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"-DCMAKE_C_FLAGS={}".format(get_c_flags()),
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"-DCMAKE_CXX_FLAGS={}".format(get_cxx_flags()),
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"-DCMAKE_EXE_LINKER_FLAGS={}".format(get_exe_linker_flags()),
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"-DCMAKE_SHARED_LINKER_FLAGS={}".format(get_shared_linker_flags()),
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"-DHAVE_CRASHREPORTER_INFO=1"]
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deployment_target = get_deployment_target()
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if deployment_target:
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cmake_flags.append(
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"-DCMAKE_OSX_DEPLOYMENT_TARGET={}".format(deployment_target))
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return cmake_flags
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def run_cmake(cmake_build_dir, ninja_binary_path):
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cmake_binary = find_cmake()
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print "found cmake binary: using \"{}\"".format(cmake_binary)
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command_line = [cmake_binary] + cmake_flags() + [
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"-DCMAKE_MAKE_PROGRAM={}".format(ninja_binary_path),
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llvm_source_path()]
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print "running cmake like so: ({}) in dir ({})".format(command_line, cmake_build_dir)
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subprocess.check_call(
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command_line,
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cwd=cmake_build_dir,
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env=cmake_environment())
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def create_directories_as_needed(path):
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try:
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os.makedirs(path)
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except OSError as error:
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# An error indicating that the directory exists already is fine.
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# Anything else should be passed along.
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if error.errno != errno.EEXIST:
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raise error
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def run_cmake_if_needed(ninja_binary_path):
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cmake_build_dir = package_build_path()
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if should_run_cmake(cmake_build_dir):
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# Create the build directory as needed
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create_directories_as_needed(cmake_build_dir)
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run_cmake(cmake_build_dir, ninja_binary_path)
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def build_ninja_if_needed():
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# First check if ninja is in our path. If so, there's nothing to do.
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ninja_binary_path = find_executable_in_paths(
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"ninja", os.environ["PATH"].split(os.pathsep))
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if ninja_binary_path:
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# It's on the path. cmake will find it. We're good.
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print "found ninja here: \"{}\"".format(ninja_binary_path)
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return ninja_binary_path
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# Figure out if we need to build it.
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ninja_build_dir = ninja_source_path()
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ninja_binary_path = os.path.join(ninja_build_dir, "ninja")
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if not is_executable(ninja_binary_path):
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# Build ninja
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command_line = ["python", "configure.py", "--bootstrap"]
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print "building ninja like so: ({}) in dir ({})".format(command_line, ninja_build_dir)
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subprocess.check_call(
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command_line,
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cwd=ninja_build_dir,
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env=os.environ)
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return ninja_binary_path
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def join_dicts(dict1, dict2):
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d = dict1.copy()
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d.update(dict2)
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return d
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def build_llvm(ninja_binary_path):
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cmake_build_dir = package_build_path()
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subprocess.check_call(
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[ninja_binary_path],
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cwd=cmake_build_dir,
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env=cmake_environment())
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def build_llvm_if_needed():
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if should_build_llvm():
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ninja_binary_path = build_ninja_if_needed()
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run_cmake_if_needed(ninja_binary_path)
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build_llvm(ninja_binary_path)
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setup_build_symlink()
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#### MAIN LOGIC ####
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all_check_out_if_needed()
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build_llvm_if_needed()
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write_archives_txt()
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sys.exit(0)
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