llvm-project/lldb/scripts/Xcode/build-llvm.py

462 lines
12 KiB
Python
Executable File

#!/usr/bin/env python
import errno
import hashlib
import fnmatch
import os
import platform
import re
import repo
import subprocess
import sys
from lldbbuild import *
#### SETTINGS ####
def LLVM_HASH_INCLUDES_DIFFS():
return False
# For use with Xcode-style builds
def process_vcs(vcs):
return {
"svn": VCS.svn,
"git": VCS.git
}[vcs]
def process_root(name):
return {
"llvm": llvm_source_path(),
"clang": clang_source_path(),
"ninja": ninja_source_path()
}[name]
def process_repo(r):
return {
'name': r["name"],
'vcs': process_vcs(r["vcs"]),
'root': process_root(r["name"]),
'url': r["url"],
'ref': r["ref"]
}
def fallback_repo(name):
return {
'name': name,
'vcs': None,
'root': process_root(name),
'url': None,
'ref': None
}
def dirs_exist(names):
for name in names:
if not os.path.isdir(process_root(name)):
return False
return True
def XCODE_REPOSITORIES():
names = ["llvm", "clang", "ninja"]
if dirs_exist(names):
return [fallback_repo(n) for n in names]
override = repo.get_override()
if override:
return [process_repo(r) for r in override]
identifier = repo.identifier()
if identifier == None:
identifier = "<invalid>" # repo.find will just use the fallback file
set = repo.find(identifier)
return [process_repo(r) for r in set]
def get_c_compiler():
return subprocess.check_output([
'xcrun',
'--sdk', 'macosx',
'-find', 'clang'
]).rstrip()
def get_cxx_compiler():
return subprocess.check_output([
'xcrun',
'--sdk', 'macosx',
'-find', 'clang++'
]).rstrip()
# CFLAGS="-isysroot $(xcrun --sdk macosx --show-sdk-path) -mmacosx-version-min=${DARWIN_DEPLOYMENT_VERSION_OSX}" \
# LDFLAGS="-mmacosx-version-min=${DARWIN_DEPLOYMENT_VERSION_OSX}" \
def get_deployment_target():
return os.environ.get('MACOSX_DEPLOYMENT_TARGET', None)
def get_c_flags():
cflags = ''
# sdk_path = subprocess.check_output([
# 'xcrun',
# '--sdk', 'macosx',
# '--show-sdk-path']).rstrip()
# cflags += '-isysroot {}'.format(sdk_path)
deployment_target = get_deployment_target()
if deployment_target:
# cflags += ' -mmacosx-version-min={}'.format(deployment_target)
pass
return cflags
def get_cxx_flags():
return get_c_flags()
def get_common_linker_flags():
linker_flags = ""
deployment_target = get_deployment_target()
if deployment_target:
# if len(linker_flags) > 0:
# linker_flags += ' '
# linker_flags += '-mmacosx-version-min={}'.format(deployment_target)
pass
return linker_flags
def get_exe_linker_flags():
return get_common_linker_flags()
def get_shared_linker_flags():
return get_common_linker_flags()
def CMAKE_FLAGS():
return {
"Debug": [
"-DCMAKE_BUILD_TYPE=RelWithDebInfo",
"-DLLVM_ENABLE_ASSERTIONS=ON",
],
"DebugClang": [
"-DCMAKE_BUILD_TYPE=Debug",
"-DLLVM_ENABLE_ASSERTIONS=ON",
],
"Release": [
"-DCMAKE_BUILD_TYPE=Release",
"-DLLVM_ENABLE_ASSERTIONS=ON",
],
"BuildAndIntegration": [
"-DCMAKE_BUILD_TYPE=Release",
"-DLLVM_ENABLE_ASSERTIONS=OFF",
],
}
def CMAKE_ENVIRONMENT():
return {
}
#### COLLECTING ALL ARCHIVES ####
def collect_archives_in_path(path):
files = os.listdir(path)
# Only use libclang and libLLVM archives, and exclude libclang_rt
regexp = "^lib(clang[^_]|LLVM|gtest).*$"
return [
os.path.join(
path,
file) for file in files if file.endswith(".a") and re.match(
regexp,
file)]
def archive_list():
paths = library_paths()
archive_lists = [collect_archives_in_path(path) for path in paths]
return [archive for archive_list in archive_lists for archive in archive_list]
def write_archives_txt():
f = open(archives_txt(), 'w')
for archive in archive_list():
f.write(archive + "\n")
f.close()
#### COLLECTING REPOSITORY MD5S ####
def source_control_status(spec):
vcs_for_spec = vcs(spec)
if LLVM_HASH_INCLUDES_DIFFS():
return vcs_for_spec.status() + vcs_for_spec.diff()
else:
return vcs_for_spec.status()
def source_control_status_for_specs(specs):
statuses = [source_control_status(spec) for spec in specs]
return "".join(statuses)
def all_source_control_status():
return source_control_status_for_specs(XCODE_REPOSITORIES())
def md5(string):
m = hashlib.md5()
m.update(string)
return m.hexdigest()
def all_source_control_status_md5():
return md5(all_source_control_status())
#### CHECKING OUT AND BUILDING LLVM ####
def apply_patches(spec):
files = os.listdir(os.path.join(lldb_source_path(), 'scripts'))
patches = [
f for f in files if fnmatch.fnmatch(
f, spec['name'] + '.*.diff')]
for p in patches:
run_in_directory(["patch",
"-p1",
"-i",
os.path.join(lldb_source_path(),
'scripts',
p)],
spec['root'])
def check_out_if_needed(spec):
if not os.path.isdir(spec['root']):
vcs(spec).check_out()
apply_patches(spec)
def all_check_out_if_needed():
for r in XCODE_REPOSITORIES():
check_out_if_needed(r)
def should_build_llvm():
if build_type() == BuildType.Xcode:
# TODO use md5 sums
return True
def do_symlink(source_path, link_path):
print("Symlinking " + source_path + " to " + link_path)
if os.path.islink(link_path):
os.remove(link_path)
if not os.path.exists(link_path):
os.symlink(source_path, link_path)
def setup_source_symlink(repo):
source_path = repo["root"]
link_path = os.path.join(lldb_source_path(), os.path.basename(source_path))
do_symlink(source_path, link_path)
def setup_source_symlinks():
for r in XCODE_REPOSITORIES():
setup_source_symlink(r)
def setup_build_symlink():
# We don't use the build symlinks in llvm.org Xcode-based builds.
if build_type() != BuildType.Xcode:
source_path = package_build_path()
link_path = expected_package_build_path()
do_symlink(source_path, link_path)
def should_run_cmake(cmake_build_dir):
# We need to run cmake if our llvm build directory doesn't yet exist.
if not os.path.exists(cmake_build_dir):
return True
# Wee also need to run cmake if for some reason we don't have a ninja
# build file. (Perhaps the cmake invocation failed, which this current
# build may have fixed).
ninja_path = os.path.join(cmake_build_dir, "build.ninja")
return not os.path.exists(ninja_path)
def cmake_environment():
cmake_env = join_dicts(os.environ, CMAKE_ENVIRONMENT())
return cmake_env
def is_executable(path):
return os.path.isfile(path) and os.access(path, os.X_OK)
def find_executable_in_paths(program, paths_to_check):
program_dir, program_name = os.path.split(program)
if program_dir:
if is_executable(program):
return program
else:
for path_dir in paths_to_check:
path_dir = path_dir.strip('"')
executable_file = os.path.join(path_dir, program)
if is_executable(executable_file):
return executable_file
return None
def find_cmake():
# First check the system PATH env var for cmake
cmake_binary = find_executable_in_paths(
"cmake", os.environ["PATH"].split(os.pathsep))
if cmake_binary:
# We found it there, use it.
return cmake_binary
# Check a few more common spots. Xcode launched from Finder
# will have the default environment, and may not have
# all the normal places present.
extra_cmake_dirs = [
"/usr/local/bin",
"/opt/local/bin",
os.path.join(os.path.expanduser("~"), "bin")
]
if platform.system() == "Darwin":
# Add locations where an official CMake.app package may be installed.
extra_cmake_dirs.extend([
os.path.join(
os.path.expanduser("~"),
"Applications",
"CMake.app",
"Contents",
"bin"),
os.path.join(
os.sep,
"Applications",
"CMake.app",
"Contents",
"bin")])
cmake_binary = find_executable_in_paths("cmake", extra_cmake_dirs)
if cmake_binary:
# We found it in one of the usual places. Use that.
return cmake_binary
# We couldn't find cmake. Tell the user what to do.
raise Exception(
"could not find cmake in PATH ({}) or in any of these locations ({}), "
"please install cmake or add a link to it in one of those locations".format(
os.environ["PATH"], extra_cmake_dirs))
def cmake_flags():
cmake_flags = CMAKE_FLAGS()[lldb_configuration()]
cmake_flags += ["-GNinja",
"-DCMAKE_C_COMPILER={}".format(get_c_compiler()),
"-DCMAKE_CXX_COMPILER={}".format(get_cxx_compiler()),
"-DCMAKE_INSTALL_PREFIX={}".format(expected_package_build_path_for("llvm")),
"-DCMAKE_C_FLAGS={}".format(get_c_flags()),
"-DCMAKE_CXX_FLAGS={}".format(get_cxx_flags()),
"-DCMAKE_EXE_LINKER_FLAGS={}".format(get_exe_linker_flags()),
"-DCMAKE_SHARED_LINKER_FLAGS={}".format(get_shared_linker_flags()),
"-DHAVE_CRASHREPORTER_INFO=1"]
deployment_target = get_deployment_target()
if deployment_target:
cmake_flags.append(
"-DCMAKE_OSX_DEPLOYMENT_TARGET={}".format(deployment_target))
return cmake_flags
def run_cmake(cmake_build_dir, ninja_binary_path):
cmake_binary = find_cmake()
print("found cmake binary: using \"{}\"".format(cmake_binary))
command_line = [cmake_binary] + cmake_flags() + [
"-DCMAKE_MAKE_PROGRAM={}".format(ninja_binary_path),
llvm_source_path()]
print("running cmake like so: ({}) in dir ({})".format(command_line, cmake_build_dir))
subprocess.check_call(
command_line,
cwd=cmake_build_dir,
env=cmake_environment())
def create_directories_as_needed(path):
try:
os.makedirs(path)
except OSError as error:
# An error indicating that the directory exists already is fine.
# Anything else should be passed along.
if error.errno != errno.EEXIST:
raise error
def run_cmake_if_needed(ninja_binary_path):
cmake_build_dir = package_build_path()
if should_run_cmake(cmake_build_dir):
# Create the build directory as needed
create_directories_as_needed(cmake_build_dir)
run_cmake(cmake_build_dir, ninja_binary_path)
def build_ninja_if_needed():
# First check if ninja is in our path. If so, there's nothing to do.
ninja_binary_path = find_executable_in_paths(
"ninja", os.environ["PATH"].split(os.pathsep))
if ninja_binary_path:
# It's on the path. cmake will find it. We're good.
print("found ninja here: \"{}\"".format(ninja_binary_path))
return ninja_binary_path
# Figure out if we need to build it.
ninja_build_dir = ninja_source_path()
ninja_binary_path = os.path.join(ninja_build_dir, "ninja")
if not is_executable(ninja_binary_path):
# Build ninja
command_line = ["python", "configure.py", "--bootstrap"]
print("building ninja like so: ({}) in dir ({})".format(command_line, ninja_build_dir))
subprocess.check_call(
command_line,
cwd=ninja_build_dir,
env=os.environ)
return ninja_binary_path
def join_dicts(dict1, dict2):
d = dict1.copy()
d.update(dict2)
return d
def build_llvm(ninja_binary_path):
cmake_build_dir = package_build_path()
subprocess.check_call(
[ninja_binary_path],
cwd=cmake_build_dir,
env=cmake_environment())
def build_llvm_if_needed():
if should_build_llvm():
ninja_binary_path = build_ninja_if_needed()
run_cmake_if_needed(ninja_binary_path)
build_llvm(ninja_binary_path)
setup_build_symlink()
#### MAIN LOGIC ####
if __name__ == "__main__":
all_check_out_if_needed()
build_llvm_if_needed()
write_archives_txt()
sys.exit(0)