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build.py
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#!/usr/bin/env 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 https://mozilla.org/MPL/2.0/.
import argparse
import json
import os
import pathlib
import platform
import re
import subprocess
import sys
import tempfile
import docker
import zstandard
from pythonbuild.buildenv import build_environment
from pythonbuild.cpython import (
STDLIB_TEST_PACKAGES,
derive_setup_local,
extension_modules_config,
meets_python_maximum_version,
meets_python_minimum_version,
parse_setup_line,
)
from pythonbuild.docker import build_docker_image, get_image, write_dockerfiles
from pythonbuild.downloads import DOWNLOADS
from pythonbuild.logging import log, set_logger
from pythonbuild.utils import (
add_env_common,
add_licenses_to_extension_entry,
clang_toolchain,
create_tar_from_directory,
download_entry,
get_target_settings,
get_targets,
target_needs,
validate_python_json,
write_cpython_version,
write_package_versions,
write_target_settings,
write_triples_makefiles,
)
ROOT = pathlib.Path(os.path.abspath(__file__)).parent.parent
BUILD = ROOT / "build"
DOWNLOADS_PATH = BUILD / "downloads"
SUPPORT = ROOT / "cpython-unix"
EXTENSION_MODULES = SUPPORT / "extension-modules.yml"
TARGETS_CONFIG = SUPPORT / "targets.yml"
LINUX_ALLOW_SYSTEM_LIBRARIES = {
"c",
"crypt",
"dl",
"m",
"pthread",
"rt",
"util",
}
MACOS_ALLOW_SYSTEM_LIBRARIES = {"dl", "m", "pthread"}
MACOS_ALLOW_FRAMEWORKS = {"CoreFoundation"}
def install_sccache(build_env):
"""Attempt to install sccache into the build environment.
This will attempt to locate a sccache executable and copy it
into the root directory of the build environment.
"""
candidates = [
# Prefer a binary in the project itself.
ROOT / "sccache",
]
# Look for sccache in $PATH, but only if the build environment
# isn't isolated, as copying binaries into an isolated environment
# may not run. And running sccache in an isolated environment won't
# do anything meaningful unless an external cache is being used.
if not build_env.is_isolated:
for path in os.environ.get("PATH", "").split(":"):
if not path:
continue
candidates.append(pathlib.Path(path) / "sccache")
for candidate in candidates:
if candidate.exists():
build_env.copy_file(candidate)
return
def add_target_env(env, build_platform, target_triple, build_env):
add_env_common(env)
settings = get_target_settings(TARGETS_CONFIG, target_triple)
env["TOOLCHAIN"] = "llvm"
env["HOST_CC"] = settings["host_cc"]
env["HOST_CXX"] = settings["host_cxx"]
env["CC"] = settings["target_cc"]
# We always set CXX, otherwise a build could bypass our toolchain
# accidentally, e.g., on macOS where `g++` links to the system clang.
env["CXX"] = settings["target_cxx"]
if settings.get("bolt_capable"):
env["BOLT_CAPABLE"] = "1"
env["PYBUILD_PLATFORM"] = build_platform
env["TOOLS_PATH"] = build_env.tools_path
extra_target_cflags = list(settings.get("target_cflags", []))
extra_target_ldflags = list(settings.get("target_ldflags", []))
extra_host_cflags = []
extra_host_ldflags = []
if build_platform == "linux64":
env["BUILD_TRIPLE"] = "x86_64-unknown-linux-gnu"
env["TARGET_TRIPLE"] = (
target_triple.replace("x86_64_v2-", "x86_64-")
.replace("x86_64_v3-", "x86_64-")
.replace("x86_64_v4-", "x86_64-")
)
# This will make x86_64_v2, etc count as cross-compiling. This is
# semantically correct, since the current machine may not support
# instructions on the target machine type.
if env["BUILD_TRIPLE"] != target_triple or target_triple.endswith(
"-unknown-linux-musl"
):
env["CROSS_COMPILING"] = "1"
if build_platform == "macos":
machine = platform.machine()
if machine == "arm64":
env["BUILD_TRIPLE"] = "aarch64-apple-darwin"
elif machine == "x86_64":
env["BUILD_TRIPLE"] = "x86_64-apple-darwin"
else:
raise Exception("unhandled macOS machine value: %s" % machine)
# Sniff out the Apple SDK minimum deployment target from cflags and
# export in its own variable. This is used by CPython's configure, as
# it doesn't sniff the cflag.
for flag in extra_target_cflags:
m = re.search("-version-min=(.*)$", flag)
if m:
env["APPLE_MIN_DEPLOYMENT_TARGET"] = m.group(1)
break
else:
raise Exception("could not find minimum Apple SDK version in cflags")
sdk_platform = settings["apple_sdk_platform"]
env["APPLE_SDK_PLATFORM"] = sdk_platform
env["TARGET_TRIPLE"] = target_triple
if env["BUILD_TRIPLE"] != env["TARGET_TRIPLE"]:
env["CROSS_COMPILING"] = "1"
# We don't have build isolation on macOS. We nerf PATH to prevent
# non-system (e.g. Homebrew) executables from being used.
env["PATH"] = "/usr/bin:/bin"
if "APPLE_SDK_PATH" in os.environ:
sdk_path = os.environ["APPLE_SDK_PATH"]
else:
# macOS SDK has historically been in /usr courtesy of an
# installer provided by Xcode. But with Catalina, the files
# are now typically in
# /Applications/Xcode.app/Contents/Developer/Platforms/.
# The proper way to resolve this path is with xcrun, which
# will give us the headers that Xcode is configured to use.
res = subprocess.run(
["xcrun", "--sdk", sdk_platform, "--show-sdk-path"],
check=True,
capture_output=True,
encoding="utf-8",
)
sdk_path = res.stdout.strip()
if not os.path.exists(sdk_path):
raise Exception("macOS SDK path %s does not exist" % sdk_path)
env["APPLE_SDK_PATH"] = sdk_path
# Grab the version from the SDK so we can put it in PYTHON.json.
sdk_settings_path = pathlib.Path(sdk_path) / "SDKSettings.json"
with sdk_settings_path.open("rb") as fh:
sdk_settings = json.load(fh)
env["APPLE_SDK_VERSION"] = sdk_settings["Version"]
env["APPLE_SDK_CANONICAL_NAME"] = sdk_settings["CanonicalName"]
extra_target_cflags.extend(["-isysroot", sdk_path])
extra_target_ldflags.extend(["-isysroot", sdk_path])
# The host SDK may be for a different platform from the target SDK.
# Resolve that separately.
if "APPLE_HOST_SDK_PATH" in os.environ:
host_sdk_path = os.environ["APPLE_HOST_SDK_PATH"]
else:
host_sdk_path = subprocess.run(
["xcrun", "--show-sdk-path"],
check=True,
capture_output=True,
encoding="utf-8",
).stdout.strip()
if not os.path.exists(host_sdk_path):
raise Exception("macOS host SDK path %s does not exist" % host_sdk_path)
extra_host_cflags.extend(["-isysroot", host_sdk_path])
extra_host_ldflags.extend(["-isysroot", host_sdk_path])
env["EXTRA_HOST_CFLAGS"] = " ".join(extra_host_cflags)
env["EXTRA_HOST_LDFLAGS"] = " ".join(extra_host_ldflags)
env["EXTRA_TARGET_CFLAGS"] = " ".join(extra_target_cflags)
env["EXTRA_TARGET_LDFLAGS"] = " ".join(extra_target_ldflags)
def toolchain_archive_path(package_name, host_platform):
entry = DOWNLOADS[package_name]
basename = "%s-%s-%s.tar" % (package_name, entry["version"], host_platform)
return BUILD / basename
def install_binutils(platform):
return platform != "macos"
def simple_build(
settings,
client,
image,
entry,
host_platform,
target_triple,
build_options,
dest_archive,
extra_archives=None,
tools_path="deps",
):
archive = download_entry(entry, DOWNLOADS_PATH)
with build_environment(client, image, entry) as build_env:
if settings.get("needs_toolchain"):
build_env.install_toolchain(
BUILD,
host_platform,
target_triple,
binutils=install_binutils(host_platform),
clang=True,
musl="musl" in target_triple,
static="static" in build_options,
)
for a in extra_archives or []:
build_env.install_artifact_archive(BUILD, a, target_triple, build_options)
build_env.copy_file(archive)
build_env.copy_file(SUPPORT / ("build-%s.sh" % entry))
env = {
"%s_VERSION" % entry.upper().replace("-", "_").replace(".", "_"): DOWNLOADS[
entry
]["version"],
}
if "static" in build_options:
env["STATIC"] = 1
add_target_env(env, host_platform, target_triple, build_env)
if entry in ("openssl-1.1", "openssl-3.0"):
settings = get_targets(TARGETS_CONFIG)[target_triple]
env["OPENSSL_TARGET"] = settings["openssl_target"]
build_env.run("build-%s.sh" % entry, environment=env)
build_env.get_tools_archive(dest_archive, tools_path)
def build_binutils(client, image, host_platform):
"""Build binutils in the Docker image."""
archive = download_entry("binutils", DOWNLOADS_PATH)
with build_environment(client, image, "binutils") as build_env:
install_sccache(build_env)
build_env.copy_file(archive)
build_env.copy_file(SUPPORT / "build-binutils.sh")
env = {"BINUTILS_VERSION": DOWNLOADS["binutils"]["version"]}
add_env_common(env)
build_env.run(
"build-binutils.sh",
environment=env,
)
build_env.get_tools_archive(
toolchain_archive_path("binutils", host_platform), "host"
)
def materialize_clang(host_platform: str, target_triple: str):
entry = clang_toolchain(host_platform, target_triple)
tar_zst = download_entry(entry, DOWNLOADS_PATH)
local_filename = "%s-%s-%s.tar" % (
entry,
DOWNLOADS[entry]["version"],
host_platform,
)
dctx = zstandard.ZstdDecompressor()
with open(tar_zst, "rb") as ifh:
with open(BUILD / local_filename, "wb") as ofh:
dctx.copy_stream(ifh, ofh)
def build_musl(client, image, host_platform: str, target_triple: str, build_options):
static = "static" in build_options
musl = "musl-static" if static else "musl"
musl_archive = download_entry(musl, DOWNLOADS_PATH)
with build_environment(client, image, "musl") as build_env:
build_env.install_toolchain(
BUILD,
host_platform,
target_triple,
binutils=True,
clang=True,
static=False,
)
build_env.copy_file(musl_archive)
build_env.copy_file(SUPPORT / "build-musl.sh")
env = {
"MUSL_VERSION": DOWNLOADS[musl]["version"],
"TOOLCHAIN": "llvm",
}
if static:
env["STATIC"] = 1
build_env.run("build-musl.sh", environment=env)
build_env.get_tools_archive(toolchain_archive_path(musl, host_platform), "host")
def build_libedit(
settings, client, image, host_platform, target_triple, build_options, dest_archive
):
libedit_archive = download_entry("libedit", DOWNLOADS_PATH)
with build_environment(client, image, "libedit") as build_env:
if settings.get("needs_toolchain"):
build_env.install_toolchain(
BUILD,
host_platform,
target_triple,
binutils=install_binutils(host_platform),
clang=True,
musl="musl" in target_triple,
static="static" in build_options,
)
build_env.install_artifact_archive(
BUILD, "ncurses", target_triple, build_options
)
build_env.copy_file(libedit_archive)
build_env.copy_file(SUPPORT / "build-libedit.sh")
env = {
"LIBEDIT_VERSION": DOWNLOADS["libedit"]["version"],
}
add_target_env(env, host_platform, target_triple, build_env)
build_env.run("build-libedit.sh", environment=env)
build_env.get_tools_archive(dest_archive, "deps")
def build_tix(
settings, client, image, host_platform, target_triple, build_options, dest_archive
):
tcl_archive = download_entry("tcl", DOWNLOADS_PATH)
tk_archive = download_entry("tk", DOWNLOADS_PATH)
tix_archive = download_entry("tix", DOWNLOADS_PATH)
with build_environment(client, image, "tix") as build_env:
if settings.get("needs_toolchain"):
build_env.install_toolchain(
BUILD,
host_platform,
target_triple,
binutils=install_binutils(host_platform),
clang=True,
musl="musl" in target_triple,
static="static" in build_options,
)
depends = {"tcl", "tk"}
if host_platform != "macos":
depends |= {"libX11", "xorgproto"}
for p in sorted(depends):
build_env.install_artifact_archive(BUILD, p, target_triple, build_options)
for p in (tcl_archive, tk_archive, tix_archive, SUPPORT / "build-tix.sh"):
build_env.copy_file(p)
env = {
"TOOLCHAIN": "clang-%s" % host_platform,
"TCL_VERSION": DOWNLOADS["tcl"]["version"],
"TIX_VERSION": DOWNLOADS["tix"]["version"],
"TK_VERSION": DOWNLOADS["tk"]["version"],
}
add_target_env(env, host_platform, target_triple, build_env)
build_env.run("build-tix.sh", environment=env)
build_env.get_tools_archive(dest_archive, "deps")
def build_cpython_host(
client,
image,
entry,
host_platform: str,
target_triple: str,
build_options: list[str],
dest_archive,
):
"""Build binutils in the Docker image."""
archive = download_entry(entry, DOWNLOADS_PATH)
with build_environment(client, image, "cpython-host") as build_env:
python_version = DOWNLOADS[entry]["version"]
build_env.install_toolchain(
BUILD,
host_platform,
target_triple,
binutils=install_binutils(host_platform),
clang=True,
static="static" in build_options,
)
build_env.copy_file(archive)
support = {
"build-cpython-host.sh",
"patch-disable-multiarch.patch",
"patch-disable-multiarch-13.patch",
}
for s in sorted(support):
build_env.copy_file(SUPPORT / s)
packages = {
"autoconf",
"m4",
}
for p in sorted(packages):
build_env.install_artifact_archive(BUILD, p, target_triple, build_options)
env = {
"PYTHON_VERSION": python_version,
}
add_target_env(env, host_platform, target_triple, build_env)
# Set environment variables allowing convenient testing for Python
# version ranges.
for v in ("3.9", "3.10", "3.11", "3.12", "3.13", "3.14"):
normal_version = v.replace(".", "_")
if meets_python_minimum_version(python_version, v):
env[f"PYTHON_MEETS_MINIMUM_VERSION_{normal_version}"] = "1"
if meets_python_maximum_version(python_version, v):
env[f"PYTHON_MEETS_MAXIMUM_VERSION_{normal_version}"] = "1"
build_env.run(
"build-cpython-host.sh",
environment=env,
)
build_env.get_tools_archive(dest_archive, "host")
def python_build_info(
build_env,
version,
platform,
target_triple,
musl,
lto,
static,
extensions,
extra_metadata,
):
"""Obtain build metadata for the Python distribution."""
log("resolving Python distribution build info")
bi = {"core": {"objs": [], "links": []}, "extensions": {}}
binary_suffix = ""
if platform == "linux64":
bi["core"]["static_lib"] = (
"install/lib/python{version}/config-{version}{binary_suffix}-x86_64-linux-gnu/libpython{version}{binary_suffix}.a".format(
version=version, binary_suffix=binary_suffix
)
)
if not static:
bi["core"]["shared_lib"] = "install/lib/libpython%s%s.so.1.0" % (
version,
binary_suffix,
)
if lto:
llvm_version = DOWNLOADS[clang_toolchain(platform, target_triple)][
"version"
]
if "+" in llvm_version:
llvm_version = llvm_version.split("+")[0]
object_file_format = f"llvm-bitcode:%{llvm_version}"
else:
object_file_format = "elf"
elif platform == "macos":
bi["core"]["static_lib"] = (
"install/lib/python{version}/config-{version}{binary_suffix}-darwin/libpython{version}{binary_suffix}.a".format(
version=version, binary_suffix=binary_suffix
)
)
bi["core"]["shared_lib"] = "install/lib/libpython%s%s.dylib" % (
version,
binary_suffix,
)
if lto:
object_file_format = (
"llvm-bitcode:%s" % DOWNLOADS["llvm-aarch64-macos"]["version"]
)
else:
object_file_format = "mach-o"
else:
raise Exception("unsupported platform: %s" % platform)
bi["object_file_format"] = object_file_format
# Determine allowed libaries on Linux
mips = target_triple.split("-")[0] in {"mips", "mipsel"}
linux_allowed_system_libraries = LINUX_ALLOW_SYSTEM_LIBRARIES.copy()
if mips and version == "3.13":
# See https://github.com/astral-sh/python-build-standalone/issues/410
linux_allowed_system_libraries.add("atomic")
riscv = target_triple.split("-")[0] in {"riscv64"}
if riscv:
# RISC-V binary often comes with libatomic on old GCC versions
# See https://github.com/riscvarchive/riscv-gcc/issues/12
# https://github.com/riscvarchive/riscv-gcc/issues/337
# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86005
linux_allowed_system_libraries.add("atomic")
# Add in core linking annotations.
libs = extra_metadata["python_config_vars"].get("LIBS", "").split()
skip = False
for i, lib in enumerate(libs):
if skip:
skip = False
continue
if lib.startswith("-l"):
lib = lib[2:]
if platform == "linux64" and lib not in linux_allowed_system_libraries:
raise Exception("unexpected library in LIBS (%s): %s" % (libs, lib))
elif platform == "macos" and lib not in MACOS_ALLOW_SYSTEM_LIBRARIES:
raise Exception("unexpected library in LIBS (%s): %s" % (libs, lib))
log("adding core system link library: %s" % lib)
bi["core"]["links"].append(
{
"name": lib,
"system": True,
}
)
elif lib == "-framework":
skip = True
framework = libs[i + 1]
if framework not in MACOS_ALLOW_FRAMEWORKS:
raise Exception(
"unexpected framework in LIBS (%s): %s" % (libs, framework)
)
log("adding core link framework: %s" % framework)
bi["core"]["links"].append({"name": framework, "framework": True})
else:
raise Exception("unknown word in LIBS (%s): %s" % (libs, lib))
# Object files for the core distribution are found by walking the
# build artifacts.
core_objs = set()
modules_objs = set()
for f in build_env.find_output_files("python/build", "*.o"):
rel_path = pathlib.Path("build") / f
if rel_path.parts[1] in ("Objects", "Parser", "Python"):
core_objs.add(rel_path)
if rel_path.parts[1] == "Modules":
modules_objs.add(rel_path)
for p in sorted(core_objs):
log("adding core object file: %s" % p)
bi["core"]["objs"].append(str(p))
assert pathlib.Path("build/Modules/config.o") in modules_objs
bi["inittab_object"] = "build/Modules/config.o"
bi["inittab_source"] = "build/Modules/config.c"
# TODO ideally we'd get these from the build environment
bi["inittab_cflags"] = ["-std=c99", "-DNDEBUG", "-DPy_BUILD_CORE"]
libraries = set()
for f in build_env.find_output_files("python/build/lib", "*.a"):
# Strip "lib" prefix and ".a" suffix.
libname = f[3:-2]
libraries.add(libname)
for extension, info in sorted(extensions.items()):
log(f"processing extension module {extension}")
d = parse_setup_line(info["setup_line"], version)
if not d:
raise Exception(f"Setup line for {extension} failed to parse")
objs = []
for obj in sorted(d["posix_obj_paths"]):
obj = pathlib.Path("build") / obj
log("adding object file %s for extension %s" % (obj, extension))
objs.append(str(obj))
# Mark object file as used so we don't include it in the core
# object files below. .remove() would be nicer, as we would catch
# missing object files. But some sources (like math.c) are used by
# multiple modules!
modules_objs.discard(obj)
links = []
for framework in sorted(d["frameworks"]):
log("adding framework %s for extension %s" % (framework, extension))
links.append({"name": framework, "framework": True})
for libname in sorted(d["links"]):
# Explicitly annotated .a files are statically linked and don't need
# annotations.
if libname.endswith(".a"):
continue
log("adding library %s for extension %s" % (libname, extension))
if libname in libraries:
entry = {"name": libname, "path_static": "build/lib/lib%s.a" % libname}
links.append(entry)
else:
links.append({"name": libname, "system": True})
if targets := info.get("required-targets"):
required = any(re.match(p, target_triple) for p in targets)
else:
required = False
entry = {
"in_core": info["in_core"],
"init_fn": info["init_fn"],
"links": links,
"objs": objs,
"required": required,
"variant": d["variant"],
}
if info.get("build-mode") == "shared":
shared_dir = extra_metadata["python_config_vars"]["DESTSHARED"].strip("/")
extension_suffix = extra_metadata["python_config_vars"]["EXT_SUFFIX"]
entry["shared_lib"] = "%s/%s%s" % (shared_dir, extension, extension_suffix)
add_licenses_to_extension_entry(entry)
bi["extensions"].setdefault(extension, []).append(entry)
# Any paths left in modules_objs are not part of any extension and are
# instead part of the core distribution.
for p in sorted(modules_objs):
log("adding core object file %s" % p)
bi["core"]["objs"].append(str(p))
return bi
def build_cpython(
settings,
client,
image,
host_platform,
target_triple,
build_options,
dest_archive,
version=None,
python_source=None,
):
"""Build CPython in a Docker image'"""
parsed_build_options = set(build_options.split("+"))
entry_name = "cpython-%s" % version
entry = DOWNLOADS[entry_name]
if not python_source:
python_version = entry["version"]
python_archive = download_entry(entry_name, DOWNLOADS_PATH)
else:
python_version = os.environ["PYBUILD_PYTHON_VERSION"]
python_archive = DOWNLOADS_PATH / ("Python-%s.tar.xz" % python_version)
print("Compressing %s to %s" % (python_source, python_archive))
with python_archive.open("wb") as fh:
create_tar_from_directory(
fh, python_source, path_prefix="Python-%s" % python_version
)
setuptools_archive = download_entry("setuptools", DOWNLOADS_PATH)
pip_archive = download_entry("pip", DOWNLOADS_PATH)
ems = extension_modules_config(EXTENSION_MODULES)
setup = derive_setup_local(
python_archive,
python_version=python_version,
target_triple=target_triple,
build_options=parsed_build_options,
extension_modules=ems,
)
enabled_extensions = setup["extensions"]
setup_local_content = setup["setup_local"]
extra_make_content = setup["make_data"]
with build_environment(client, image, "cpython") as build_env:
if settings.get("needs_toolchain"):
build_env.install_toolchain(
BUILD,
host_platform,
target_triple,
binutils=install_binutils(host_platform),
clang=True,
musl="musl" in target_triple,
static="static" in build_options,
)
packages = target_needs(TARGETS_CONFIG, target_triple, python_version)
# Toolchain packages are handled specially.
packages.discard("binutils")
packages.discard("musl")
for p in sorted(packages):
build_env.install_artifact_archive(BUILD, p, target_triple, build_options)
build_env.install_toolchain_archive(
BUILD, entry_name, host_platform, version=python_version
)
for p in (
python_archive,
setuptools_archive,
pip_archive,
SUPPORT / "build-cpython.sh",
SUPPORT / "run_tests-13.py",
):
build_env.copy_file(p)
for f in sorted(os.listdir(ROOT)):
if f.startswith("LICENSE.") and f.endswith(".txt"):
build_env.copy_file(ROOT / f)
for f in sorted(os.listdir(SUPPORT)):
if f.endswith(".patch"):
build_env.copy_file(SUPPORT / f)
with tempfile.NamedTemporaryFile("wb") as fh:
# In case default file masks cause wonkiness.
os.chmod(fh.name, 0o644)
fh.write(setup_local_content)
fh.flush()
build_env.copy_file(fh.name, dest_name="Setup.local")
with tempfile.NamedTemporaryFile("wb") as fh:
os.chmod(fh.name, 0o644)
fh.write(extra_make_content)
fh.flush()
build_env.copy_file(fh.name, dest_name="Makefile.extra")
env = {
"PIP_VERSION": DOWNLOADS["pip"]["version"],
"PYTHON_VERSION": python_version,
"PYTHON_MAJMIN_VERSION": ".".join(python_version.split(".")[0:2]),
"SETUPTOOLS_VERSION": DOWNLOADS["setuptools"]["version"],
"TOOLCHAIN": "clang-%s" % host_platform,
}
# Set environment variables allowing convenient testing for Python
# version ranges.
for v in ("3.9", "3.10", "3.11", "3.12", "3.13", "3.14"):
normal_version = v.replace(".", "_")
if meets_python_minimum_version(python_version, v):
env[f"PYTHON_MEETS_MINIMUM_VERSION_{normal_version}"] = "1"
if meets_python_maximum_version(python_version, v):
env[f"PYTHON_MEETS_MAXIMUM_VERSION_{normal_version}"] = "1"
if "freethreaded" in parsed_build_options:
env["CPYTHON_FREETHREADED"] = "1"
if "debug" in parsed_build_options:
env["CPYTHON_DEBUG"] = "1"
if "pgo" in parsed_build_options:
env["CPYTHON_OPTIMIZED"] = "1"
if "lto" in parsed_build_options:
env["CPYTHON_LTO"] = "1"
if "static" in parsed_build_options:
env["CPYTHON_STATIC"] = "1"
add_target_env(env, host_platform, target_triple, build_env)
build_env.run("build-cpython.sh", environment=env)
extension_module_loading = ["builtin"]
crt_features = []
if host_platform == "linux64":
if "static" in parsed_build_options:
crt_features.append("static")
else:
extension_module_loading.append("shared-library")
if "musl" in target_triple:
crt_features.append("musl-dynamic")
musl_version = DOWNLOADS["musl"]["version"]
crt_features.append("musl-version:%s" % musl_version)
else:
crt_features.append("glibc-dynamic")
glibc_max_version = build_env.get_file("glibc_version.txt").strip()
if not glibc_max_version:
raise Exception("failed to retrieve glibc max symbol version")
crt_features.append(
"glibc-max-symbol-version:%s"
% glibc_max_version.decode("ascii")
)
python_symbol_visibility = "global-default"
elif host_platform == "macos":
python_symbol_visibility = "global-default"
extension_module_loading.append("shared-library")
crt_features.append("libSystem")
else:
raise ValueError("unhandled platform: %s" % host_platform)
extra_metadata = json.loads(build_env.get_file("metadata.json"))
# TODO: Remove `optimizations` in the future, deprecated in favor of
# `build_options` in metadata version 8.
optimizations = build_options.replace("freethreaded+", "")
# Create PYTHON.json file describing this distribution.
python_info = {
"version": "8",
"target_triple": target_triple,
"optimizations": optimizations,
"build_options": build_options,
"python_tag": entry["python_tag"],
"python_version": python_version,
"python_stdlib_test_packages": sorted(STDLIB_TEST_PACKAGES),
"python_symbol_visibility": python_symbol_visibility,
"python_extension_module_loading": extension_module_loading,
"libpython_link_mode": (
"static" if "static" in parsed_build_options else "shared"
),
"crt_features": crt_features,
"run_tests": "build/run_tests.py",
"build_info": python_build_info(
build_env,
version,
host_platform,
target_triple,
"musl" in target_triple,
"lto" in parsed_build_options,
"static" in parsed_build_options,
enabled_extensions,
extra_metadata,
),
"licenses": entry["licenses"],
"license_path": "licenses/LICENSE.cpython.txt",
}
python_info["tcl_library_path"] = "install/lib"
python_info["tcl_library_paths"] = [
"itcl4.2.4",
"tcl8",
"tcl8.6",
"thread2.8.7",
"tk8.6",
]
if "-apple" not in target_triple:
python_info["tcl_library_paths"].append("Tix8.4.3")
if "-apple" in target_triple:
python_info["apple_sdk_platform"] = env["APPLE_SDK_PLATFORM"]
python_info["apple_sdk_version"] = env["APPLE_SDK_VERSION"]
python_info["apple_sdk_canonical_name"] = env["APPLE_SDK_CANONICAL_NAME"]
python_info["apple_sdk_deployment_target"] = env[
"APPLE_MIN_DEPLOYMENT_TARGET"
]
# Add metadata derived from built distribution.
python_info.update(extra_metadata)
validate_python_json(python_info, extension_modules=ems)
with tempfile.NamedTemporaryFile("w") as fh:
json.dump(python_info, fh, sort_keys=True, indent=4)
fh.flush()
if image:
dest_path = "/build/out/python"
else:
dest_path = "out/python"
build_env.copy_file(fh.name, dest_path, dest_name="PYTHON.json")
with open(dest_archive, "wb") as fh:
fh.write(build_env.get_output_archive("python"))
def main():
BUILD.mkdir(exist_ok=True)
DOWNLOADS_PATH.mkdir(exist_ok=True)
(BUILD / "logs").mkdir(exist_ok=True)
if os.environ.get("PYBUILD_NO_DOCKER"):
client = None
else:
try:
client = docker.from_env(timeout=600)
client.ping()
except Exception as e:
print("unable to connect to Docker: %s" % e, file=sys.stderr)
return 1
# Note these arguments must be synced with `build-main.py`
parser = argparse.ArgumentParser()
parser.add_argument(
"--host-platform", required=True, help="Platform we are building from"
)
parser.add_argument(
"--target-triple",
required=True,
help="Host triple that we are building Python for",
)
# Construct possible options
options = set()
options.update({"debug", "noopt", "pgo", "lto", "pgo+lto"})
options.update({f"freethreaded+{option}" for option in options})
options.update({f"{option}+static" for option in options})
parser.add_argument(
"--options",
choices=options,