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wscript
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## -*- Mode: python; py-indent-offset: 4; indent-tabs-mode: nil; coding: utf-8; -*-
# python lib modules
from __future__ import print_function
import sys
import shutil
import types
import optparse
import os.path
import re
import shlex
import subprocess
import textwrap
import fileinput
import glob
from utils import read_config_file
# WAF modules
from waflib import Utils, Scripting, Configure, Build, Options, TaskGen, Context, Task, Logs, Errors
from waflib.Errors import WafError
# local modules
import wutils
# By default, all modules will be enabled, examples will be disabled,
# and tests will be disabled.
modules_enabled = ['all_modules']
examples_enabled = False
tests_enabled = False
# GCC minimum version requirements for C++17 support
gcc_min_version = (7, 0, 0)
# Bug 2181: clang warnings about unused local typedefs and potentially
# evaluated expressions affecting darwin clang/LLVM version 7.0.0 (Xcode 7)
# or clang/LLVM version 3.6 or greater. We must make this platform-specific.
darwin_clang_version_warn_unused_local_typedefs = (7, 0, 0)
darwin_clang_version_warn_potentially_evaluated = (7, 0, 0)
clang_version_warn_unused_local_typedefs = (3, 6, 0)
clang_version_warn_potentially_evaluated = (3, 6, 0)
# Get the information out of the NS-3 configuration file.
config_file_exists = False
(config_file_exists, modules_enabled, examples_enabled, tests_enabled) = read_config_file()
sys.path.insert(0, os.path.abspath('waf-tools'))
try:
import cflags # override the build profiles from waf
finally:
sys.path.pop(0)
cflags.profiles = {
# profile name: [optimization_level, warnings_level, debug_level]
'debug': [0, 2, 3],
'optimized': [3, 2, 1],
'release': [3, 2, 0],
}
cflags.default_profile = 'debug'
Configure.autoconfig = 0
# the following two variables are used by the target "waf dist"
with open("VERSION.info", "rt") as f:
VERSION = f.read().strip()
APPNAME = 'ns'
wutils.VERSION = VERSION
wutils.APPNAME = APPNAME
# we don't use VNUM anymore (see bug #1327 for details)
wutils.VNUM = None
# these variables are mandatory ('/' are converted automatically)
top = '.'
out = 'build'
def load_env():
bld_cls = getattr(Utils.g_module, 'build_context', Utils.Context)
bld_ctx = bld_cls()
bld_ctx.load_dirs(os.path.abspath(os.path.join (srcdir,'..')),
os.path.abspath(os.path.join (srcdir,'..', blddir)))
bld_ctx.load_envs()
env = bld_ctx.get_env()
return env
def get_files(base_dir):
retval = []
reference=os.path.dirname(base_dir)
for root, dirs, files in os.walk(base_dir):
if root.find('.hg') != -1:
continue
for file in files:
if file.find('.hg') != -1:
continue
fullname = os.path.join(root,file)
# we can't use os.path.relpath because it's new in python 2.6
relname = fullname.replace(reference + '/','')
retval.append([fullname,relname])
return retval
def dist_hook():
import tarfile
shutil.rmtree("doc/html", True)
shutil.rmtree("doc/latex", True)
shutil.rmtree("nsc", True)
# Print the sorted list of module names in columns.
def print_module_names(names):
"""Print the list of module names in 3 columns."""
for i, name in enumerate(sorted(names)):
if i % 3 == 2 or i == len(names) - 1:
print(name)
else:
print(name.ljust(25), end=' ')
# return types of some APIs differ in Python 2/3 (type string vs class bytes)
# This method will decode('utf-8') a byte object in Python 3,
# and do nothing in Python 2
def maybe_decode(input):
if sys.version_info < (3,):
return input
else:
try:
return input.decode('utf-8')
except:
sys.exc_clear()
return input
def options(opt):
# options provided by the modules
opt.load('md5_tstamp')
opt.load('compiler_c')
opt.load('compiler_cxx')
opt.load('cflags')
opt.load('gnu_dirs')
opt.load('boost', tooldir=['waf-tools'])
opt.add_option('--check-config',
help=('Print the current configuration.'),
action="store_true", default=False,
dest="check_config")
opt.add_option('--cwd',
help=('Set the working directory for a program.'),
action="store", type="string", default=None,
dest='cwd_launch')
opt.add_option('--enable-gcov',
help=('Enable code coverage analysis.'
' WARNING: this option only has effect '
'with the configure command.'),
action="store_true", default=False,
dest='enable_gcov')
opt.add_option('--no-task-lines',
help=("Don't print task lines, i.e. messages saying which tasks are being executed by WAF."
" Coupled with a single -v will cause WAF to output only the executed commands,"
" just like 'make' does by default."),
action="store_true", default=False,
dest='no_task_lines')
opt.add_option('--lcov-report',
help=('Generate a code coverage report '
'(use this option after configuring with --enable-gcov and running a program)'),
action="store_true", default=False,
dest='lcov_report')
opt.add_option('--lcov-zerocounters',
help=('Zero the lcov counters'
'(use this option before rerunning a program, when generating repeated lcov reports)'),
action="store_true", default=False,
dest='lcov_zerocounters')
opt.add_option('--run',
help=('Run a locally built program; argument can be a program name,'
' or a command starting with the program name.'),
type="string", default='', dest='run')
opt.add_option('--run-no-build',
help=('Run a locally built program without rebuilding the project; argument can be a program name,'
' or a command starting with the program name.'),
type="string", default='', dest='run_no_build')
opt.add_option('--visualize',
help=('Modify --run arguments to enable the visualizer'),
action="store_true", default=False, dest='visualize')
opt.add_option('--command-template',
help=('Template of the command used to run the program given by --run;'
' It should be a shell command string containing %s inside,'
' which will be replaced by the actual program.'),
type="string", default=None, dest='command_template')
opt.add_option('--pyrun',
help=('Run a python program using locally built ns3 python module;'
' argument is the path to the python program, optionally followed'
' by command-line options that are passed to the program.'),
type="string", default='', dest='pyrun')
opt.add_option('--pyrun-no-build',
help=('Run a python program using locally built ns3 python module without rebuilding the project;'
' argument is the path to the python program, optionally followed'
' by command-line options that are passed to the program.'),
type="string", default='', dest='pyrun_no_build')
opt.add_option('--gdb',
help=('Change the default command template to run programs and unit tests with gdb'),
action="store_true", default=False,
dest='gdb')
opt.add_option('--valgrind',
help=('Change the default command template to run programs and unit tests with valgrind'),
action="store_true", default=False,
dest='valgrind')
opt.add_option('--shell',
help=('DEPRECATED (run ./waf shell)'),
action="store_true", default=False,
dest='shell')
opt.add_option('--enable-sudo',
help=('Use sudo to setup suid bits on ns3 executables.'),
dest='enable_sudo', action='store_true',
default=False)
opt.add_option('--enable-tests',
help=('Build the ns-3 tests.'),
dest='enable_tests', action='store_true',
default=False)
opt.add_option('--disable-tests',
help=('Do not build the ns-3 tests.'),
dest='disable_tests', action='store_true',
default=False)
opt.add_option('--enable-examples',
help=('Build the ns-3 examples.'),
dest='enable_examples', action='store_true',
default=False)
opt.add_option('--disable-examples',
help=('Do not build the ns-3 examples.'),
dest='disable_examples', action='store_true',
default=False)
opt.add_option('--check',
help=('DEPRECATED (run ./test.py)'),
default=False, dest='check', action="store_true")
opt.add_option('--enable-static',
help=('Compile NS-3 statically: works only on linux, without python'),
dest='enable_static', action='store_true',
default=False)
opt.add_option('--enable-mpi',
help=('Compile NS-3 with MPI and distributed simulation support'),
dest='enable_mpi', action='store_true',
default=False)
opt.add_option('--doxygen-no-build',
help=('Run doxygen to generate html documentation from source comments, '
'but do not wait for ns-3 to finish the full build.'),
action="store_true", default=False,
dest='doxygen_no_build')
opt.add_option('--docset',
help=('Create Docset, without building. This requires the docsetutil tool from Xcode 9.2 or earlier. See Bugzilla 2196 for more details.'),
action="store_true", default=False,
dest="docset_build")
opt.add_option('--enable-des-metrics',
help=('Log all events in a json file with the name of the executable (which must call CommandLine::Parse(argc, argv)'),
action="store_true", default=False,
dest='enable_desmetrics')
opt.add_option('--cxx-standard',
help=('Compile NS-3 with the given C++ standard'),
type='string', dest='cxx_standard')
opt.add_option('--enable-asserts',
help=('Enable the asserts regardless of the compile mode'),
action="store_true", default=False,
dest='enable_asserts')
opt.add_option('--enable-logs',
help=('Enable the logs regardless of the compile mode'),
action="store_true", default=False,
dest='enable_logs')
# options provided in subdirectories
opt.recurse('src')
opt.recurse('bindings/python')
opt.recurse('src/internet')
opt.recurse('contrib')
def _check_compilation_flag(conf, flag, mode='cxx', linkflags=None):
"""
Checks if the C++ compiler accepts a certain compilation flag or flags
flag: can be a string or a list of strings
"""
l = []
if flag:
l.append(flag)
if isinstance(linkflags, list):
l.extend(linkflags)
else:
if linkflags:
l.append(linkflags)
if len(l) > 1:
flag_str = 'flags ' + ' '.join(l)
else:
flag_str = 'flag ' + ' '.join(l)
if len(flag_str) > 28:
flag_str = flag_str[:28] + "..."
conf.start_msg('Checking for compilation %s support' % (flag_str,))
env = conf.env.derive()
retval = False
if mode == 'cc':
mode = 'c'
if mode == 'cxx':
env.append_value('CXXFLAGS', flag)
else:
env.append_value('CFLAGS', flag)
if linkflags is not None:
env.append_value("LINKFLAGS", linkflags)
try:
retval = conf.check(compiler=mode, fragment='int main() { return 0; }', features='c', env=env)
except Errors.ConfigurationError:
ok = False
else:
ok = (retval == True)
conf.end_msg(ok)
return ok
def report_optional_feature(conf, name, caption, was_enabled, reason_not_enabled):
conf.env.append_value('NS3_OPTIONAL_FEATURES', [(name, caption, was_enabled, reason_not_enabled)])
def check_optional_feature(conf, name):
for (name1, caption, was_enabled, reason_not_enabled) in conf.env.NS3_OPTIONAL_FEATURES:
if name1 == name:
return was_enabled
raise KeyError("Feature %r not declared yet" % (name,))
# starting with waf 1.6, conf.check() becomes fatal by default if the
# test fails, this alternative method makes the test non-fatal, as it
# was in waf <= 1.5
def _check_nonfatal(conf, *args, **kwargs):
try:
return conf.check(*args, **kwargs)
except conf.errors.ConfigurationError:
return None
# Write a summary of optional features status
def print_config(env, phase='configure'):
if phase == 'configure':
profile = get_build_profile(env)
else:
profile = get_build_profile()
print("---- Summary of optional NS-3 features:")
print("%-30s: %s%s%s" % ("Build profile", Logs.colors('GREEN'),
profile, Logs.colors('NORMAL')))
bld = wutils.bld
print("%-30s: %s%s%s" % ("Build directory", Logs.colors('GREEN'),
Options.options.out, Logs.colors('NORMAL')))
for (name, caption, was_enabled, reason_not_enabled) in sorted(env['NS3_OPTIONAL_FEATURES'], key=lambda s : s[1]):
if was_enabled:
status = 'enabled'
color = 'GREEN'
else:
status = 'not enabled (%s)' % reason_not_enabled
color = 'RED'
print("%-30s: %s%s%s" % (caption, Logs.colors(color), status, Logs.colors('NORMAL')))
# Checking for boost headers and libraries
#
# There are four cases:
# A. Only need headers, and they are required
# B. Also need compiled libraries, and they are required
# C. Only use headers, but they are not required
# D. Use compiled libraries, but they are not required
#
# A. If you only need includes there are just two steps:
#
# A1. Add this in your module wscript configure function:
#
# if not conf.require_boost_incs('my-module', 'my module caption'):
# return
#
# A2. Do step FINAL below.
#
# B. If you also need some compiled boost libraries there are
# three steps (instead of the above):
#
# B1. Declare the libraries you need by adding to your module wscript:
#
# REQUIRED_BOOST_LIBS = ['lib1', 'lib2'...]
#
# def required_boost_libs(conf):
# conf.env['REQUIRED_BOOST_LIBS'] += REQUIRED_BOOST_LIBS
#
# B2. Check that the libs are present in your module wscript configure function:
#
# if conf.missing_boost_libs('my-module', 'my module caption', REQUIRED_BOOST_LIBS):
# return
#
# B3. Do step FINAL below.
#
# Finally,
#
# FINAL. Add boost to your module wscript build function:
#
# # Assuming you have
# # module = bld.create_ns3_module('my-module')
# module.use.append('BOOST')
#
# If your use of boost is optional it's even simpler.
#
# C. For optional headers only, the two steps above are modified a little:
#
# C1. Add this to your module wscript configure function:
#
# conf.require_boost_incs('my-module', 'my module caption', required=False)
# # Continue with config, adjusting for missing boost
#
# C2. Modify step FINAL as follows
#
# if bld.env['INCLUDES_BOOST']:
# module.use.append('BOOST')
#
# D. For compiled boost libraries
#
# D1. Do B1 above to declare the libraries you would like to use
#
# D2. If you need to take action at configure time,
# add to your module wscript configure function:
#
# missing_boost_libs = conf.missing_boost_libs('my-module', 'my module caption', REQUIRED_BOOST_LIBS, required=False)
# # Continue with config, adjusting for missing boost libs
#
# At this point you can inspect missing_boost_libs to see
# what libs were found and do the right thing.
# See below for preprocessor symbols which will be available
# in your source files.
#
# D3. If any of your libraries are present add to your
# module wscript build function:
#
# missing_boost_libs = bld.missing_boost_libs('lib-opt', REQUIRED_BOOST_LIBS)
# # Continue with build, adjusting for missing boost libs
#
# At this point you can inspect missing_boost_libs to see
# what libs were found and do the right thing.
#
# In all cases you can test for boost in your code with
#
# #ifdef HAVE_BOOST
#
# Each boost compiled library will be indicated with a 'HAVE_BOOST_<lib>'
# preprocessor symbol, which you can test. For example, for the boost
# Signals2 library:
#
# #ifdef HAVE_BOOST_SIGNALS2
#
def require_boost_incs(conf, module, caption, required=True):
conf.to_log('boost: %s wants incs, required: %s' % (module, required))
if conf.env['INCLUDES_BOOST']:
conf.to_log('boost: %s: have boost' % module)
return True
elif not required:
conf.to_log('boost: %s: no boost, but not required' % module)
return False
else:
conf.to_log('boost: %s: no boost, but required' % module)
conf.report_optional_feature(module, caption, False,
"boost headers required but not found")
# Add this module to the list of modules that won't be built
# if they are enabled.
conf.env['MODULES_NOT_BUILT'].append(module)
return False
# Report any required boost libs which are missing
# Return values of truthy are bad; falsey is good:
# If all are present return False (non missing)
# If boost not present, or no libs return True
# If some libs present, return the list of missing libs
def conf_missing_boost_libs(conf, module, caption, libs, required= True):
conf.to_log('boost: %s wants %s, required: %s' % (module, libs, required))
if not conf.require_boost_incs(module, caption, required):
# No headers found, so the libs aren't there either
return libs
missing_boost_libs = [lib for lib in libs if lib not in conf.boost_libs]
if required and missing_boost_libs:
if not conf.env['LIB_BOOST']:
conf.to_log('boost: %s requires libs, but none found' % module)
conf.report_optional_feature(module, caption, False,
"No boost libraries were found")
else:
conf.to_log('boost: %s requires libs, but missing %s' % (module, missing_boost_libs))
conf.report_optional_feature(module, caption, False,
"Required boost libraries not found, missing: %s" % missing_boost_libs)
# Add this module to the list of modules that won't be built
# if they are enabled.
conf.env['MODULES_NOT_BUILT'].append(module)
return missing_boost_libs
# Required libraries were found, or are not required
return missing_boost_libs
def get_boost_libs(libs):
names = set()
for lib in libs:
if lib.startswith("boost_"):
lib = lib[6:]
if lib.endswith("-mt"):
lib = lib[:-3]
names.add(lib)
return names
def configure_boost(conf):
conf.to_log('boost: loading conf')
conf.load('boost')
# Find Boost libraries by modules
conf.to_log('boost: scanning for required libs')
conf.env['REQUIRED_BOOST_LIBS'] = []
for modules_dir in ['src', 'contrib']:
conf.recurse (modules_dir, name="get_required_boost_libs", mandatory=False)
# Check for any required boost libraries
if conf.env['REQUIRED_BOOST_LIBS'] is not []:
conf.env['REQUIRED_BOOST_LIBS'] = list(set(conf.env['REQUIRED_BOOST_LIBS']))
conf.to_log("boost: libs required: %s" % conf.env['REQUIRED_BOOST_LIBS'])
conf.check_boost(lib=' '.join (conf.env['REQUIRED_BOOST_LIBS']), mandatory=False, required=False)
if not conf.env['LIB_BOOST']:
conf.env['LIB_BOOST'] = []
else:
# Check with no libs, so we find the includes
conf.check_boost(mandatory=False, required=False)
conf.to_log('boost: checking if we should define HAVE_BOOST')
if conf.env['INCLUDES_BOOST']:
conf.to_log('boost: defining HAVE_BOOST')
conf.env.append_value ('CPPFLAGS', '-DHAVE_BOOST')
# Some boost libraries may have been found.
# Add preprocessor symbols for them
conf.to_log('boost: checking which libs are present')
if conf.env['LIB_BOOST']:
conf.boost_libs = get_boost_libs(conf.env['LIB_BOOST'])
for lib in conf.boost_libs:
msg='boost: lib present: ' + lib
if lib in conf.env['REQUIRED_BOOST_LIBS']:
have = '-DHAVE_BOOST_' + lib.upper()
conf.to_log('%s, requested, adding %s' % (msg, have))
conf.env.append_value('CPPFLAGS', have)
else:
conf.to_log('%s, not required, ignoring' % msg)
boost_libs_missing = [lib for lib in conf.env['REQUIRED_BOOST_LIBS'] if lib not in conf.boost_libs]
for lib in boost_libs_missing:
conf.to_log('boost: lib missing: %s' % lib)
def bld_missing_boost_libs (bld, module, libs):
missing_boost_libs = [lib for lib in libs if lib not in bld.boost_libs]
return missing_boost_libs
def configure(conf):
# Waf does not work correctly if the absolute path contains whitespaces
if (re.search(r"\s", os.getcwd ())):
conf.fatal('Waf does not support whitespace in the path to current working directory: %s' % os.getcwd())
conf.load('relocation', tooldir=['waf-tools'])
# attach some extra methods
conf.check_nonfatal = types.MethodType(_check_nonfatal, conf)
conf.check_compilation_flag = types.MethodType(_check_compilation_flag, conf)
conf.report_optional_feature = types.MethodType(report_optional_feature, conf)
conf.check_optional_feature = types.MethodType(check_optional_feature, conf)
conf.require_boost_incs = types.MethodType(require_boost_incs, conf)
conf.missing_boost_libs = types.MethodType(conf_missing_boost_libs, conf)
conf.boost_libs = set()
conf.env['NS3_OPTIONAL_FEATURES'] = []
conf.load('compiler_c')
cc_string = '.'.join(conf.env['CC_VERSION'])
conf.msg('Checking for cc version',cc_string,'GREEN')
conf.load('compiler_cxx')
conf.load('cflags', tooldir=['waf-tools'])
conf.load('command', tooldir=['waf-tools'])
conf.load('gnu_dirs')
conf.load('clang_compilation_database', tooldir=['waf-tools'])
env = conf.env
if Options.options.enable_gcov:
env['GCOV_ENABLED'] = True
env.append_value('CCFLAGS', '-fprofile-arcs')
env.append_value('CCFLAGS', '-ftest-coverage')
env.append_value('CXXFLAGS', '-fprofile-arcs')
env.append_value('CXXFLAGS', '-ftest-coverage')
env.append_value('LINKFLAGS', '-lgcov')
env.append_value('LINKFLAGS', '-coverage')
if Options.options.build_profile == 'debug':
env.append_value('DEFINES', 'NS3_BUILD_PROFILE_DEBUG')
env.append_value('DEFINES', 'NS3_ASSERT_ENABLE')
env.append_value('DEFINES', 'NS3_LOG_ENABLE')
if Options.options.build_profile == 'release':
env.append_value('DEFINES', 'NS3_BUILD_PROFILE_RELEASE')
if Options.options.build_profile == 'optimized':
env.append_value('DEFINES', 'NS3_BUILD_PROFILE_OPTIMIZED')
if Options.options.enable_logs:
env.append_unique('DEFINES', 'NS3_LOG_ENABLE')
if Options.options.enable_asserts:
env.append_unique('DEFINES', 'NS3_ASSERT_ENABLE')
env['PLATFORM'] = sys.platform
env['BUILD_PROFILE'] = Options.options.build_profile
if Options.options.build_profile == "release":
env['BUILD_SUFFIX'] = ''
else:
env['BUILD_SUFFIX'] = '-'+Options.options.build_profile
env['APPNAME'] = wutils.APPNAME
env['VERSION'] = wutils.VERSION
if conf.env['CXX_NAME'] in ['gcc']:
if tuple(map(int, conf.env['CC_VERSION'])) < gcc_min_version:
conf.fatal('gcc version %s older than minimum supported version %s' %
('.'.join(conf.env['CC_VERSION']), '.'.join(map(str, gcc_min_version))))
if conf.env['CXX_NAME'] in ['gcc', 'icc']:
if Options.options.build_profile == 'release':
env.append_value('CXXFLAGS', '-fomit-frame-pointer')
if Options.options.build_profile == 'optimized':
if conf.check_compilation_flag('-march=native'):
env.append_value('CXXFLAGS', '-march=native')
env.append_value('CXXFLAGS', '-fstrict-overflow')
if conf.env['CXX_NAME'] in ['gcc']:
env.append_value('CXXFLAGS', '-Wstrict-overflow=2')
if sys.platform == 'win32':
env.append_value("LINKFLAGS", "-Wl,--enable-runtime-pseudo-reloc")
elif sys.platform == 'cygwin':
env.append_value("LINKFLAGS", "-Wl,--enable-auto-import")
cxx = env['CXX']
cxx_check_libstdcxx = cxx + ['-print-file-name=libstdc++.so']
p = subprocess.Popen(cxx_check_libstdcxx, stdout=subprocess.PIPE)
libstdcxx_output = maybe_decode(p.stdout.read().strip())
libstdcxx_location = os.path.dirname(libstdcxx_output)
p.wait()
if libstdcxx_location:
conf.env.append_value('NS3_MODULE_PATH', libstdcxx_location)
if Utils.unversioned_sys_platform() in ['linux']:
if conf.check_compilation_flag('-Wl,--soname=foo'):
env['WL_SONAME_SUPPORTED'] = True
# bug 2181 on clang warning suppressions
if conf.env['CXX_NAME'] in ['clang']:
if Utils.unversioned_sys_platform() == 'darwin':
if tuple(map(int, conf.env['CC_VERSION'])) >= darwin_clang_version_warn_unused_local_typedefs:
env.append_value('CXXFLAGS', '-Wno-unused-local-typedefs')
if tuple(map(int, conf.env['CC_VERSION'])) >= darwin_clang_version_warn_potentially_evaluated:
env.append_value('CXXFLAGS', '-Wno-potentially-evaluated-expression')
else:
if tuple(map(int, conf.env['CC_VERSION'])) >= clang_version_warn_unused_local_typedefs:
env.append_value('CXXFLAGS', '-Wno-unused-local-typedefs')
if tuple(map(int, conf.env['CC_VERSION'])) >= clang_version_warn_potentially_evaluated:
env.append_value('CXXFLAGS', '-Wno-potentially-evaluated-expression')
env['ENABLE_STATIC_NS3'] = False
if Options.options.enable_static:
if Utils.unversioned_sys_platform() == 'darwin':
if conf.check_compilation_flag(flag=[], linkflags=['-Wl,-all_load']):
conf.report_optional_feature("static", "Static build", True, '')
env['ENABLE_STATIC_NS3'] = True
else:
conf.report_optional_feature("static", "Static build", False,
"Link flag -Wl,-all_load does not work")
else:
if conf.check_compilation_flag(flag=[], linkflags=['-Wl,--whole-archive,-Bstatic', '-Wl,-Bdynamic,--no-whole-archive']):
conf.report_optional_feature("static", "Static build", True, '')
env['ENABLE_STATIC_NS3'] = True
else:
conf.report_optional_feature("static", "Static build", False,
"Link flag -Wl,--whole-archive,-Bstatic does not work")
# Checks if environment variable specifies the C++ language standard and/or
# if the user has specified the standard via the -cxx-standard argument
# to 'waf configure'. The following precedence and behavior is implemented:
# 1) if user does not specify anything, Waf will use the default standard
# configured for ns-3, which is configured below
# 2) if user specifies the '-cxx-standard' option, it will be used instead
# of the default.
# Example: ./waf configure --cxx-standard=-std=c++14
# 3) if user specifies the C++ standard via the CXXFLAGS environment
# variable, it will be used instead of the default.
# Example: CXXFLAGS="-std=c++14" ./waf configure
# 4) if user specifies both the CXXFLAGS environment variable and the
# -cxx-standard argument, the latter will take precedence and a warning
# will be emitted in the configure output if there were conflicting
# standards between the two.
# Example: CXXFLAGS="-std=c++14" ./waf configure --cxx-standard=-std=c++17
# (in the above scenario, Waf will use c++17 but warn about it)
# Note: If the C++ standard is not recognized, configuration will error exit
cxx_standard = ""
cxx_standard_env = ""
for flag in env['CXXFLAGS']:
if flag[:5] == "-std=":
cxx_standard_env = flag
if not cxx_standard_env and Options.options.cxx_standard:
cxx_standard = Options.options.cxx_standard
env.append_value('CXXFLAGS', cxx_standard)
elif cxx_standard_env and not Options.options.cxx_standard:
cxx_standard = cxx_standard_env
# No need to change CXXFLAGS
elif cxx_standard_env and Options.options.cxx_standard and cxx_standard_env != Options.options.cxx_standard:
Logs.warn("user-specified --cxx-standard (" +
Options.options.cxx_standard + ") does not match the value in CXXFLAGS (" + cxx_standard_env + "); Waf will use the --cxx-standard value")
cxx_standard = Options.options.cxx_standard
env['CXXFLAGS'].remove(cxx_standard_env)
env.append_value('CXXFLAGS', cxx_standard)
elif cxx_standard_env and Options.options.cxx_standard and cxx_standard_env == Options.options.cxx_standard:
cxx_standard = Options.options.cxx_standard
# No need to change CXXFLAGS
elif not cxx_standard and not Options.options.cxx_standard:
cxx_standard = "-std=c++17"
env.append_value('CXXFLAGS', cxx_standard)
if not conf.check_compilation_flag(cxx_standard):
raise Errors.ConfigurationError("Exiting because C++ standard value " + cxx_standard + " is not recognized")
# Handle boost
configure_boost(conf)
# Set this so that the lists won't be printed at the end of this
# configure command.
conf.env['PRINT_BUILT_MODULES_AT_END'] = False
conf.env['MODULES_NOT_BUILT'] = []
conf.recurse('bindings/python')
conf.recurse('src')
conf.recurse('contrib')
# Set the list of enabled modules.
if Options.options.enable_modules:
# Use the modules explicitly enabled.
_enabled_mods = []
_enabled_contrib_mods = []
for mod in Options.options.enable_modules.split(','):
if mod in conf.env['NS3_MODULES'] and mod.startswith('ns3-'):
_enabled_mods.append(mod)
elif 'ns3-' + mod in conf.env['NS3_MODULES']:
_enabled_mods.append('ns3-' + mod)
elif mod in conf.env['NS3_CONTRIBUTED_MODULES'] and mod.startswith('ns3-'):
_enabled_contrib_mods.append(mod)
elif 'ns3-' + mod in conf.env['NS3_CONTRIBUTED_MODULES']:
_enabled_contrib_mods.append('ns3-' + mod)
conf.env['NS3_ENABLED_MODULES'] = _enabled_mods
conf.env['NS3_ENABLED_CONTRIBUTED_MODULES'] = _enabled_contrib_mods
else:
# Use the enabled modules list from the ns3 configuration file.
if modules_enabled[0] == 'all_modules':
# Enable all modules if requested.
conf.env['NS3_ENABLED_MODULES'] = conf.env['NS3_MODULES']
conf.env['NS3_ENABLED_CONTRIBUTED_MODULES'] = conf.env['NS3_CONTRIBUTED_MODULES']
else:
# Enable the modules from the list.
_enabled_mods = []
_enabled_contrib_mods = []
for mod in modules_enabled:
if mod in conf.env['NS3_MODULES'] and mod.startswith('ns3-'):
_enabled_mods.append(mod)
elif 'ns3-' + mod in conf.env['NS3_MODULES']:
_enabled_mods.append('ns3-' + mod)
elif mod in conf.env['NS3_CONTRIBUTED_MODULES'] and mod.startswith('ns3-'):
_enabled_contrib_mods.append(mod)
elif 'ns3-' + mod in conf.env['NS3_CONTRIBUTED_MODULES']:
_enabled_contrib_mods.append('ns3-' + mod)
conf.env['NS3_ENABLED_MODULES'] = _enabled_mods
conf.env['NS3_ENABLED_CONTRIBUTED_MODULES'] = _enabled_contrib_mods
# Add the template module to the list of enabled modules that
# should not be built if this is a static build on Darwin. They
# don't work there for the template module, and this is probably
# because the template module has no source files.
if conf.env['ENABLE_STATIC_NS3'] and sys.platform == 'darwin':
conf.env['MODULES_NOT_BUILT'].append('template')
# Remove these modules from the list of enabled modules.
for not_built in conf.env['MODULES_NOT_BUILT']:
not_built_name = 'ns3-' + not_built
if not_built_name in conf.env['NS3_ENABLED_MODULES']:
conf.env['NS3_ENABLED_MODULES'].remove(not_built_name)
if not conf.env['NS3_ENABLED_MODULES']:
raise WafError('Exiting because the ' + not_built + ' module can not be built and it was the only one enabled.')
elif not_built_name in conf.env['NS3_ENABLED_CONTRIBUTED_MODULES']:
conf.env['NS3_ENABLED_CONTRIBUTED_MODULES'].remove(not_built_name)
# for suid bits
try:
conf.find_program('sudo', var='SUDO')
except WafError:
pass
why_not_sudo = "because we like it"
if Options.options.enable_sudo and conf.env['SUDO']:
env['ENABLE_SUDO'] = True
else:
env['ENABLE_SUDO'] = False
if Options.options.enable_sudo:
why_not_sudo = "program sudo not found"
else:
why_not_sudo = "option --enable-sudo not selected"
conf.report_optional_feature("ENABLE_SUDO", "Use sudo to set suid bit", env['ENABLE_SUDO'], why_not_sudo)
# Decide if tests will be built or not.
if Options.options.enable_tests:
# Tests were explicitly enabled.
env['ENABLE_TESTS'] = True
why_not_tests = "option --enable-tests selected"
elif Options.options.disable_tests:
# Tests were explicitly disabled.
env['ENABLE_TESTS'] = False
why_not_tests = "option --disable-tests selected"
else:
# Enable tests based on the ns3 configuration file.
env['ENABLE_TESTS'] = tests_enabled
if config_file_exists:
why_not_tests = "based on configuration file"
elif tests_enabled:
why_not_tests = "defaults to enabled"
else:
why_not_tests = "defaults to disabled"
conf.report_optional_feature("ENABLE_TESTS", "Tests", env['ENABLE_TESTS'], why_not_tests)
# Decide if examples will be built or not.
if Options.options.enable_examples:
# Examples were explicitly enabled.
env['ENABLE_EXAMPLES'] = True
why_not_examples = "option --enable-examples selected"
elif Options.options.disable_examples:
# Examples were explicitly disabled.
env['ENABLE_EXAMPLES'] = False
why_not_examples = "option --disable-examples selected"
else:
# Enable examples based on the ns3 configuration file.
env['ENABLE_EXAMPLES'] = examples_enabled
if config_file_exists:
why_not_examples = "based on configuration file"
elif examples_enabled:
why_not_examples = "defaults to enabled"
else:
why_not_examples = "defaults to disabled"
conf.report_optional_feature("ENABLE_EXAMPLES", "Examples", env['ENABLE_EXAMPLES'],
why_not_examples)
try:
for dir in os.listdir('examples'):
if dir.startswith('.') or dir == 'CVS':
continue
conf.env.append_value('EXAMPLE_DIRECTORIES', dir)
except OSError:
return
env['VALGRIND_FOUND'] = False
try:
conf.find_program('valgrind', var='VALGRIND')
env['VALGRIND_FOUND'] = True
except WafError:
pass
# These flags are used for the implicitly dependent modules.
if env['ENABLE_STATIC_NS3']:
if sys.platform == 'darwin':
env.STLIB_MARKER = '-Wl,-all_load'
else:
env.STLIB_MARKER = '-Wl,--whole-archive,-Bstatic'
env.SHLIB_MARKER = '-Wl,-Bdynamic,--no-whole-archive'
have_gsl = conf.check_cfg(package='gsl', args=['--cflags', '--libs'],
uselib_store='GSL', mandatory=False)
conf.env['ENABLE_GSL'] = have_gsl
conf.report_optional_feature("GSL", "GNU Scientific Library (GSL)",
conf.env['ENABLE_GSL'],
"GSL not found")
conf.find_program('libgcrypt-config', var='LIBGCRYPT_CONFIG', msg="libgcrypt-config", mandatory=False)
if env.LIBGCRYPT_CONFIG:
conf.check_cfg(path=env.LIBGCRYPT_CONFIG, msg="Checking for libgcrypt", args='--cflags --libs', package='',
define_name="HAVE_GCRYPT", global_define=True, uselib_store='GCRYPT', mandatory=False)
conf.report_optional_feature("libgcrypt", "Gcrypt library",
conf.env.HAVE_GCRYPT, "libgcrypt not found: you can use libgcrypt-config to find its location.")
why_not_desmetrics = "defaults to disabled"
if Options.options.enable_desmetrics:
conf.env['ENABLE_DES_METRICS'] = True
env.append_value('DEFINES', 'ENABLE_DES_METRICS')
why_not_desmetrics = "option --enable-des-metrics selected"
conf.report_optional_feature("DES Metrics", "DES Metrics event collection", conf.env['ENABLE_DES_METRICS'], why_not_desmetrics)
# for compiling C code, copy over the CXX* flags
conf.env.append_value('CCFLAGS', conf.env['CXXFLAGS'])
try:
conf.find_program('doxygen', var='DOXYGEN')
except WafError:
pass
# append user defined flags after all our ones
for (confvar, envvar) in [['CCFLAGS', 'CCFLAGS_EXTRA'],
['CXXFLAGS', 'CXXFLAGS_EXTRA'],
['LINKFLAGS', 'LINKFLAGS_EXTRA'],
['LINKFLAGS', 'LDFLAGS_EXTRA']]:
if envvar in os.environ:
value = shlex.split(os.environ[envvar])
conf.env.append_value(confvar, value)
print_config(env)
class SuidBuild_task(Task.Task):
"""task that makes a binary Suid
"""
after = ['cxxprogram', 'cxxshlib', 'cxxstlib']
def __init__(self, *args, **kwargs):
super(SuidBuild_task, self).__init__(*args, **kwargs)
self.m_display = 'build-suid'
try:
program_obj = wutils.find_program(self.generator.name, self.generator.env)
except ValueError as ex:
raise WafError(str(ex))
program_node = program_obj.path.find_or_declare(program_obj.target)
self.filename = program_node.get_bld().abspath()
def run(self):
print('setting suid bit on executable ' + self.filename, file=sys.stderr)
if subprocess.Popen(['sudo', 'chown', 'root', self.filename]).wait():
return 1
if subprocess.Popen(['sudo', 'chmod', 'u+s', self.filename]).wait():
return 1
return 0
def runnable_status(self):
"RUN_ME SKIP_ME or ASK_LATER"
try:
st = os.stat(self.filename)
except OSError:
return Task.ASK_LATER
if st.st_uid == 0:
return Task.SKIP_ME
else:
return Task.RUN_ME
def create_suid_program(bld, name):
grp = bld.current_group
bld.add_group() # this to make sure no two sudo tasks run at the same time
program = bld(features='cxx cxxprogram')
program.is_ns3_program = True
program.module_deps = list()
program.name = name
program.target = "%s%s-%s%s" % (wutils.APPNAME, wutils.VERSION, name, bld.env.BUILD_SUFFIX)
if bld.env['ENABLE_SUDO']:
program.create_task("SuidBuild_task")
bld.set_group(grp)
return program
def create_ns3_program(bld, name, dependencies=('core',)):
program = bld(features='cxx cxxprogram')
program.is_ns3_program = True
program.name = name
program.target = "%s%s-%s%s" % (wutils.APPNAME, wutils.VERSION, name, bld.env.BUILD_SUFFIX)
# Each of the modules this program depends on has its own library.
program.ns3_module_dependencies = ['ns3-'+dep for dep in dependencies]
program.includes = Context.out_dir
#make a copy here to prevent additions to program.use from polluting program.ns3_module_dependencies
program.use = program.ns3_module_dependencies.copy()