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SConstruct
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SConstruct
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# -*- mode: python; -*-
import atexit
import copy
import errno
import json
import os
import re
import platform
import shlex
import shutil
import stat
import subprocess
import sys
import textwrap
import uuid
from glob import glob
from pkg_resources import parse_version
import SCons
# This must be first, even before EnsureSConsVersion, if
# we are to avoid bulk loading all tools in the DefaultEnvironment.
DefaultEnvironment(tools=[])
# These come from site_scons/mongo. Import these things
# after calling DefaultEnvironment, for the sake of paranoia.
import mongo
import mongo.platform as mongo_platform
import mongo.toolchain as mongo_toolchain
import mongo.generators as mongo_generators
import mongo.install_actions as install_actions
from mongo.build_profiles import BUILD_PROFILES
EnsurePythonVersion(3, 6)
EnsureSConsVersion(3, 1, 1)
# Monkey patch SCons.FS.File.release_target_info to be a no-op.
# See https://github.com/SCons/scons/issues/3454
def release_target_info_noop(self):
pass
SCons.Node.FS.File.release_target_info = release_target_info_noop
from buildscripts import utils
from buildscripts import moduleconfig
import psutil
scons_invocation = '{} {}'.format(sys.executable, ' '.join(sys.argv))
print('scons: running with args {}'.format(scons_invocation))
atexit.register(mongo.print_build_failures)
def add_option(name, **kwargs):
if 'dest' not in kwargs:
kwargs['dest'] = name
if 'metavar' not in kwargs and kwargs.get('type', None) == 'choice':
kwargs['metavar'] = '[' + '|'.join(kwargs['choices']) + ']'
AddOption('--' + name, **kwargs)
def get_option(name):
return GetOption(name)
def has_option(name):
optval = GetOption(name)
# Options with nargs=0 are true when their value is the empty tuple. Otherwise,
# if the value is falsish (empty string, None, etc.), coerce to False.
return True if optval == () else bool(optval)
def use_system_version_of_library(name):
return has_option('use-system-all') or has_option('use-system-' + name)
# Returns true if we have been configured to use a system version of any C++ library. If you
# add a new C++ library dependency that may be shimmed out to the system, add it to the below
# list.
def using_system_version_of_cxx_libraries():
cxx_library_names = ["tcmalloc", "boost"]
return True in [use_system_version_of_library(x) for x in cxx_library_names]
def make_variant_dir_generator():
memoized_variant_dir = [False]
def generate_variant_dir(target, source, env, for_signature):
if not memoized_variant_dir[0]:
memoized_variant_dir[0] = env.subst('$BUILD_ROOT/$VARIANT_DIR')
return memoized_variant_dir[0]
return generate_variant_dir
# Always randomize the build order to shake out missing edges, and to help the cache:
# https://scons.org/doc/production/HTML/scons-user/ch24s06.html
SetOption('random', 1)
# Options TODOs:
#
# - We should either alphabetize the entire list of options, or split them into logical groups
# with clear boundaries, and then alphabetize the groups. There is no way in SCons though to
# inform it of options groups.
#
# - Many of these options are currently only either present or absent. This is not good for
# scripting the build invocation because it means you need to interpolate in the presence of
# the whole option. It is better to make all options take an optional on/off or true/false
# using the nargs='const' mechanism.
#
add_option(
'build-profile',
choices=list(BUILD_PROFILES.keys()),
default='default',
type='choice',
help='''Short hand for common build options. These profiles are well supported by SDP and are
kept up to date. Unless you need something specific, it is recommended that you only build with
these. san is the recommeneded profile since it exposes bugs before they are found in patch
builds. Check out site_scons/mongo/build_profiles.py to see each profile.''',
)
build_profile = BUILD_PROFILES[get_option('build-profile')]
add_option(
'ninja',
choices=['enabled', 'disabled'],
default=build_profile.ninja,
nargs='?',
const='enabled',
type='choice',
help='Enable the build.ninja generator tool stable or canary version',
)
add_option(
'force-jobs',
help='Allow more jobs than available cpu\'s when icecream is not enabled.',
nargs=0,
)
add_option(
'build-tools',
choices=['stable', 'next'],
default='stable',
type='choice',
help='Enable experimental build tools',
)
add_option(
'legacy-tarball',
choices=['true', 'false'],
default='false',
const='true',
nargs='?',
type='choice',
help='Build a tarball matching the old MongoDB dist targets',
)
add_option(
'lint-scope',
choices=['all', 'changed'],
default='all',
type='choice',
help='Lint files in the current git diff instead of all files',
)
add_option(
'install-mode',
choices=['hygienic'],
default='hygienic',
help='select type of installation',
nargs=1,
type='choice',
)
add_option(
'install-action',
choices=([*install_actions.available_actions] + ['default']),
default='default',
help=
'select mechanism to use to install files (advanced option to reduce disk IO and utilization)',
nargs=1,
type='choice',
)
add_option(
'build-dir',
default='#build',
help='build output directory',
)
add_option(
'release',
help='release build',
nargs=0,
)
add_option(
'lto',
help='enable link time optimizations (experimental, except with MSVC)',
nargs=0,
)
add_option(
'endian',
choices=['big', 'little', 'auto'],
default='auto',
help='endianness of target platform',
nargs=1,
type='choice',
)
add_option(
'disable-minimum-compiler-version-enforcement',
help='allow use of unsupported older compilers (NEVER for production builds)',
nargs=0,
)
add_option(
'ssl',
help='Enable or Disable SSL',
choices=['on', 'off'],
default='on',
const='on',
nargs='?',
type='choice',
)
add_option(
'wiredtiger',
choices=['on', 'off'],
const='on',
default='on',
help='Enable wiredtiger',
nargs='?',
type='choice',
)
add_option(
'ocsp-stapling',
choices=['on', 'off'],
default='on',
help='Enable OCSP Stapling on servers',
nargs='?',
type='choice',
)
js_engine_choices = ['mozjs', 'none']
add_option(
'js-engine',
choices=js_engine_choices,
default=js_engine_choices[0],
help='JavaScript scripting engine implementation',
type='choice',
)
add_option(
'server-js',
choices=['on', 'off'],
default='on',
help='Build mongod without JavaScript support',
type='choice',
)
add_option(
'libc++',
help='use libc++ (experimental, requires clang)',
nargs=0,
)
add_option(
'use-glibcxx-debug',
help='Enable the glibc++ debug implementations of the C++ standard libary',
nargs=0,
)
add_option(
'noshell',
help="don't build shell",
nargs=0,
)
add_option(
'dbg',
choices=['on', 'off'],
const='on',
default=build_profile.dbg,
help='Enable runtime debugging checks',
nargs='?',
type='choice',
)
add_option(
'separate-debug',
choices=['on', 'off'],
const='on',
default='off',
help='Produce separate debug files',
nargs='?',
type='choice',
)
add_option(
'spider-monkey-dbg',
choices=['on', 'off'],
const='on',
default='off',
help='Enable SpiderMonkey debug mode',
nargs='?',
type='choice',
)
add_option(
'opt',
choices=['on', 'size', 'off'],
const='on',
help='Enable compile-time optimization',
nargs='?',
type='choice',
)
experimental_optimizations = [
'O3',
'builtin-memcmp',
'fnsi',
'nofp',
'nordyn',
'sandybridge',
'tbaa',
'treevec',
'vishidden',
]
experimental_optimization_choices = ['*']
experimental_optimization_choices.extend("+" + opt for opt in experimental_optimizations)
experimental_optimization_choices.extend("-" + opt for opt in experimental_optimizations)
add_option(
'experimental-optimization',
action="append",
choices=experimental_optimization_choices,
const=experimental_optimization_choices[0],
default=['+sandybridge'],
help='Enable experimental optimizations',
nargs='?',
type='choice',
)
add_option(
'debug-compress',
action="append",
choices=["off", "as", "ld"],
default=["auto"],
help="Compress debug sections",
)
add_option(
'sanitize',
help='enable selected sanitizers',
metavar='san1,san2,...sanN',
default=build_profile.sanitize,
)
add_option(
'sanitize-coverage',
help='enable selected coverage sanitizers',
metavar='cov1,cov2,...covN',
)
add_option(
'allocator',
choices=["auto", "system", "tcmalloc", "tcmalloc-experimental"],
default=build_profile.allocator,
help='allocator to use (use "auto" for best choice for current platform)',
type='choice',
)
add_option(
'gdbserver',
help='build in gdb server support',
nargs=0,
)
add_option(
'lldb-server',
help='build in lldb server support',
nargs=0,
)
add_option(
'gcov',
help='compile with flags for gcov',
nargs=0,
)
add_option(
'enable-free-mon',
choices=["auto", "on", "off"],
default="auto",
help='Disable support for Free Monitoring to avoid HTTP client library dependencies',
type='choice',
)
add_option(
'enable-http-client',
choices=["auto", "on", "off"],
default="auto",
help='Enable support for HTTP client requests (required WinHTTP or cURL)',
type='choice',
)
add_option(
'use-sasl-client',
help='Support SASL authentication in the client library',
nargs=0,
)
add_option(
'use-diagnostic-latches',
choices=['on', 'off'],
default='on',
help='Enable annotated Mutex types',
type='choice',
)
# Most of the "use-system-*" options follow a simple form.
for pack in [
(
'asio',
'ASIO',
),
('boost', ),
('fmt', ),
('google-benchmark', 'Google benchmark'),
('icu', 'ICU'),
('intel_decimal128', 'intel decimal128'),
('kms-message', ),
('pcre2', ),
('snappy', ),
('stemmer', ),
('tcmalloc', ),
('libunwind', ),
('valgrind', ),
('wiredtiger', ),
('yaml', ),
('zlib', ),
('zstd', 'Zstandard'),
]:
name = pack[0]
pretty = name
if len(pack) == 2:
pretty = pack[1]
add_option(
f'use-system-{name}',
help=f'use system version of {pretty} library',
nargs=0,
)
add_option(
'system-boost-lib-search-suffixes',
help='Comma delimited sequence of boost library suffixes to search',
)
add_option(
'use-system-mongo-c',
choices=['on', 'off', 'auto'],
const='on',
default="auto",
help="use system version of the mongo-c-driver (auto will use it if it's found)",
nargs='?',
type='choice',
)
add_option(
'use-system-all',
help='use all system libraries',
nargs=0,
)
add_option(
'build-fast-and-loose',
choices=['on', 'off', 'auto'],
const='on',
default='auto',
help='looser dependency checking',
nargs='?',
type='choice',
)
add_option(
"disable-warnings-as-errors",
action="append",
choices=["configure", "source"],
const="source",
default=[],
help=
"Don't add a warnings-as-errors flag to compiler command lines in selected contexts; defaults to 'source' if no argument is provided",
nargs="?",
type="choice",
)
add_option(
'detect-odr-violations',
help="Have the linker try to detect ODR violations, if supported",
nargs=0,
)
add_option(
'variables-help',
help='Print the help text for SCons variables',
nargs=0,
)
add_option(
'osx-version-min',
help='minimum OS X version to support',
)
# https://docs.microsoft.com/en-us/cpp/porting/modifying-winver-and-win32-winnt?view=vs-2017
# https://docs.microsoft.com/en-us/windows-server/get-started/windows-server-release-info
win_version_min_choices = {
'win10': ('0A00', '0000'),
'ws2016': ('0A00', '1607'),
'ws2019': ('0A00', '1809'),
}
add_option(
'win-version-min',
choices=list(win_version_min_choices.keys()),
default=None,
help='minimum Windows version to support',
type='choice',
)
add_option(
'cache',
choices=["all", "nolinked"],
const='all',
help='Use an object cache rather than a per-build variant directory (experimental)',
nargs='?',
)
add_option(
'cache-dir',
default='$BUILD_ROOT/scons/cache',
help='Specify the directory to use for caching objects if --cache is in use',
)
add_option(
'cache-signature-mode',
choices=['none', 'validate'],
default="none",
help='Extra check to validate integrity of cache files after pulling from cache',
)
add_option(
"cxx-std",
choices=["17", "20"],
default="17",
help="Select the C++ language standard to build with",
)
def find_mongo_custom_variables():
files = []
paths = [path for path in sys.path if 'site_scons' in path]
for path in paths:
probe = os.path.join(path, 'mongo_custom_variables.py')
if os.path.isfile(probe):
files.append(probe)
return files
add_option(
'variables-files',
default=build_profile.variables_files,
action="append",
help="Specify variables files to load.",
)
link_model_choices = ['auto', 'object', 'static', 'dynamic', 'dynamic-strict', 'dynamic-sdk']
add_option(
'link-model',
choices=link_model_choices,
default=build_profile.link_model,
help='Select the linking model for the project',
type='choice',
)
add_option(
'linker',
choices=['auto', 'gold', 'lld', 'bfd'],
default='auto',
help='Specify the type of linker to use.',
type='choice',
)
variable_parse_mode_choices = ['auto', 'posix', 'other']
add_option(
'variable-parse-mode',
choices=variable_parse_mode_choices,
default=variable_parse_mode_choices[0],
help='Select which parsing mode is used to interpret command line variables',
type='choice',
)
add_option(
'modules',
help="Comma-separated list of modules to build. Empty means none. Default is all.",
)
add_option(
'runtime-hardening',
choices=["on", "off"],
default="on",
help="Enable runtime hardening features (e.g. stack smash protection)",
type='choice',
)
experimental_runtime_hardenings = [
'cfex',
'controlflow',
'stackclash',
]
experimental_runtime_hardening_choices = ['*']
experimental_runtime_hardening_choices.extend("+" + opt for opt in experimental_runtime_hardenings)
experimental_runtime_hardening_choices.extend("-" + opt for opt in experimental_runtime_hardenings)
add_option(
'experimental-runtime-hardening',
action="append",
choices=experimental_runtime_hardening_choices,
const=experimental_runtime_hardening_choices[0],
default=[],
help='Enable experimental runtime hardenings',
nargs='?',
type='choice',
)
add_option(
'use-hardware-crc32',
choices=["on", "off"],
default="on",
help="Enable CRC32 hardware acceleration",
type='choice',
)
add_option(
'git-decider',
choices=["on", "off"],
const='on',
default="off",
help="Use git metadata for out-of-date detection for source files",
nargs='?',
type="choice",
)
add_option(
'toolchain-root',
default=None,
help="Name a toolchain root for use with toolchain selection Variables files in etc/scons",
)
add_option(
'msvc-debugging-format',
choices=["codeview", "pdb"],
default="codeview",
help=
'Debugging format in debug builds using msvc. Codeview (/Z7) or Program database (/Zi). Default is codeview.',
type='choice',
)
add_option(
'use-libunwind',
choices=["on", "off", "auto"],
const="on",
default="auto",
help="Enable libunwind for backtraces",
nargs="?",
type='choice',
)
add_option(
'jlink',
help="Limit link concurrency. Takes either an integer to limit to or a"
" float between 0 and 1.0 whereby jobs will be multiplied to get the final"
" jlink value."
"\n\nExample: --jlink=0.75 --jobs 8 will result in a jlink value of 6",
const=0.5,
default=None,
nargs='?',
type=float,
)
add_option(
'enable-usdt-probes',
choices=["on", "off", "auto"],
default="auto",
help=
'Enable USDT probes. Default is auto, which is enabled only on Linux with SystemTap headers',
type='choice',
nargs='?',
const='on',
)
add_option(
'libdeps-debug',
choices=['on', 'off'],
const='off',
help='Print way too much debugging information on how libdeps is handling dependencies.',
nargs='?',
type='choice',
)
add_option(
'libdeps-linting',
choices=['on', 'off', 'print'],
const='on',
default='on',
help='Enable linting of libdeps. Default is on, optionally \'print\' will not stop the build.',
nargs='?',
type='choice',
)
add_option(
'build-metrics',
metavar="FILE",
const='build-metrics.json',
default='',
help='Enable tracking of build performance and output data as json.'
' Use "-" to output json to stdout, or supply a path to the desired'
' file to output to. If no argument is supplied, the default log'
' file will be "build-metrics.json".',
nargs='?',
type=str,
)
add_option(
'visibility-support',
choices=['auto', 'on', 'off'],
const='auto',
default='auto',
help='Enable visibility annotations',
nargs='?',
type='choice',
)
add_option(
'force-macos-dynamic-link',
default=False,
action='store_true',
help='Bypass link-model=dynamic check for macos versions <12.',
)
try:
with open("version.json", "r") as version_fp:
version_data = json.load(version_fp)
if 'version' not in version_data:
print("version.json does not contain a version string")
Exit(1)
if 'githash' not in version_data:
version_data['githash'] = utils.get_git_version()
except IOError as e:
# If the file error wasn't because the file is missing, error out
if e.errno != errno.ENOENT:
print(("Error opening version.json: {0}".format(e.strerror)))
Exit(1)
version_data = {
'version': utils.get_git_describe()[1:],
'githash': utils.get_git_version(),
}
except ValueError as e:
print(("Error decoding version.json: {0}".format(e)))
Exit(1)
# Setup the command-line variables
def variable_shlex_converter(val):
# If the argument is something other than a string, propagate
# it literally.
if not isinstance(val, str):
return val
parse_mode = get_option('variable-parse-mode')
if parse_mode == 'auto':
parse_mode = 'other' if mongo_platform.is_running_os('windows') else 'posix'
return shlex.split(val, posix=(parse_mode == 'posix'))
def variable_arch_converter(val):
arches = {
'x86_64': 'x86_64',
'amd64': 'x86_64',
'emt64': 'x86_64',
'x86': 'i386',
}
val = val.lower()
if val in arches:
return arches[val]
# Uname returns a bunch of possible x86's on Linux.
# Check whether the value is an i[3456]86 processor.
if re.match(r'^i[3-6]86$', val):
return 'i386'
# Return whatever val is passed in - hopefully it's legit
return val
# The Scons 'default' tool enables a lot of tools that we don't actually need to enable.
# On platforms like Solaris, it actually does the wrong thing by enabling the sunstudio
# toolchain first. As such it is simpler and more efficient to manually load the precise
# set of tools we need for each platform.
# If we aren't on a platform where we know the minimal set of tools, we fall back to loading
# the 'default' tool.
def decide_platform_tools():
if mongo_platform.is_running_os('windows'):
# we only support MS toolchain on windows
return ['msvc', 'mslink', 'mslib', 'masm', 'vcredist']
elif mongo_platform.is_running_os('linux', 'solaris'):
return ['gcc', 'g++', 'gnulink', 'ar', 'gas']
elif mongo_platform.is_running_os('darwin'):
return ['gcc', 'g++', 'applelink', 'ar', 'libtool', 'as', 'xcode']
else:
return ["default"]
def variable_tools_converter(val):
tool_list = shlex.split(val)
# This list is intentionally not sorted; the order of tool loading
# matters as some of the tools have dependencies on other tools.
return tool_list + [
"distsrc",
"gziptool",
"idl_tool",
"jsheader",
"mongo_test_execution",
"mongo_test_list",
"mongo_benchmark",
"mongo_integrationtest",
"mongo_unittest",
"mongo_libfuzzer",
"textfile",
]
def variable_distsrc_converter(val):
if not val.endswith("/"):
return val + "/"
return val
def fatal_error(env, msg, *args):
print(msg.format(*args))
Exit(1)
# Apply the default variables files, and walk the provided
# arguments. Interpret any falsy argument (like the empty string) as
# resetting any prior state. This makes the argument
# --variables-files= destructive of any prior variables files
# arguments, including the default.
variables_files_args = get_option('variables-files')
variables_files = find_mongo_custom_variables()
for variables_file in variables_files_args:
if variables_file:
variables_files.append(variables_file)
else:
variables_files = []
for vf in variables_files:
if not os.path.isfile(vf):
fatal_error(None, f"Specified variables file '{vf}' does not exist")
print(f"Using variable customization file {vf}")
env_vars = Variables(
files=variables_files,
args=ARGUMENTS,
)
sconsflags = os.environ.get('SCONSFLAGS', None)
if sconsflags:
print(("Using SCONSFLAGS environment variable arguments: %s" % sconsflags))
env_vars.Add(
'ABIDW',
help="Configures the path to the 'abidw' (a libabigail) utility",
)
env_vars.Add(
'AR',
help='Sets path for the archiver',
)
env_vars.Add(
'ARFLAGS',
help='Sets flags for the archiver',
converter=variable_shlex_converter,
)
env_vars.Add(
'CCACHE',
help='Tells SCons where the ccache binary is',
default=build_profile.CCACHE,
)
env_vars.Add(
'CACHE_SIZE',
help='Maximum size of the SCons cache (in gigabytes)',
default=32,
converter=lambda x: int(x),
)
env_vars.Add(
'CACHE_PRUNE_TARGET',
help='Maximum percent in-use in SCons cache after pruning',
default=66,
converter=lambda x: int(x),
)
env_vars.Add(
'CC',
help='Selects the C compiler to use',
)
env_vars.Add(
'CCFLAGS',
help='Sets flags for the C and C++ compiler',
converter=variable_shlex_converter,
)
env_vars.Add(
'ASFLAGS',
help='Sets assembler specific flags',
converter=variable_shlex_converter,
)
env_vars.Add(
'CFLAGS',
help='Sets flags for the C compiler',
converter=variable_shlex_converter,
)
env_vars.Add(
'CPPDEFINES',
help='Sets pre-processor definitions for C and C++',
converter=variable_shlex_converter,
default=[],
)
env_vars.Add(
'CPPPATH',
help='Adds paths to the preprocessor search path',
converter=variable_shlex_converter,
)
env_vars.Add(
'CXX',
help='Selects the C++ compiler to use',
)
env_vars.Add(
'CXXFLAGS',
help='Sets flags for the C++ compiler',
converter=variable_shlex_converter,
)
default_destdir = '$BUILD_ROOT/install'
if get_option('ninja') != 'disabled':
# Workaround for SERVER-53952 where issues wih different
# ninja files building to the same install dir. Different
# ninja files need to build to different install dirs.
default_destdir = '$BUILD_DIR/install'
env_vars.Add(
'DESTDIR',
help='Where builds will install files',
default=default_destdir,
)
env_vars.Add(
'DSYMUTIL',
help='Path to the dsymutil utility',
)
env_vars.Add(
'GITDIFFFLAGS',
help='Sets flags for git diff',
default='',
)