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https://github.com/FWGS/xash3d-fwgs.git
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wscript: refactoring, split optimization flags selection and fpic control into standalone modules
This commit is contained in:
Alibek Omarov
165
scripts/waifulib/compiler_optimizations.py
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165
scripts/waifulib/compiler_optimizations.py
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# encoding: utf-8
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# compiler_optimizations.py -- main entry point for configuring C/C++ compilers
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# Copyright (C) 2021 a1batross
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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try: from fwgslib import get_flags_by_type, get_flags_by_compiler
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except: from waflib.extras.fwgslib import get_flags_by_type, get_flags_by_compiler
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from waflib.Configure import conf
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from waflib import Logs
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'''
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Flags can be overriden and new types can be added
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by importing this as normal Python module
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Example:
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#!/usr/bin/env python
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from waflib.extras import compiler_optimizations
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compiler_optimizations.VALID_BUILD_TYPES += 'gottagofast'
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compiler_optimizations.CFLAGS['gottagofast'] = {
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'gcc': ['-Ogentoo']
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}
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'''
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VALID_BUILD_TYPES = ['fastnative', 'fast', 'release', 'debug', 'nooptimize', 'sanitize', 'none']
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LINKFLAGS = {
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'common': {
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'msvc': ['/DEBUG'], # always create PDB, doesn't affect result binaries
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'gcc': ['-Wl,--no-undefined'],
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'owcc': ['-Wl,option stack=512k']
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},
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'sanitize': {
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'clang': ['-fsanitize=undefined', '-fsanitize=address'],
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'gcc': ['-fsanitize=undefined', '-fsanitize=address'],
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}
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}
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CFLAGS = {
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'common': {
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# disable thread-safe local static initialization for C++11 code, as it cause crashes on Windows XP
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'msvc': ['/D_USING_V110_SDK71_', '/Zi', '/FS', '/Zc:threadSafeInit-', '/MT'],
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'clang': ['-g', '-gdwarf-2', '-fvisibility=hidden'],
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'gcc': ['-g', '-fvisibility=hidden'],
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'owcc': ['-fno-short-enum', '-ffloat-store', '-g3']
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},
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'fast': {
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'msvc': ['/O2', '/Oy'],
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'gcc': {
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'3': ['-O3', '-fomit-frame-pointer'],
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'default': ['-Ofast', '-funsafe-math-optimizations', '-funsafe-loop-optimizations', '-fomit-frame-pointer']
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},
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'clang': ['-Ofast'],
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'default': ['-O3']
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},
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'fastnative': {
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'msvc': ['/O2', '/Oy'],
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'gcc': ['-Ofast', '-march=native', '-funsafe-math-optimizations', '-funsafe-loop-optimizations', '-fomit-frame-pointer'],
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'clang': ['-Ofast', '-march=native'],
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'default': ['-O3']
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},
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'release': {
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'msvc': ['/O2'],
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'owcc': ['-O3', '-foptimize-sibling-calls', '-fomit-leaf-frame-pointer', '-fomit-frame-pointer', '-fschedule-insns', '-funsafe-math-optimizations', '-funroll-loops', '-frerun-optimizer', '-finline-functions', '-finline-limit=512', '-fguess-branch-probability', '-fno-strict-aliasing', '-floop-optimize'],
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'default': ['-O3']
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},
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'debug': {
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'msvc': ['/O1'],
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'gcc': ['-Og'],
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'owcc': ['-O0', '-fno-omit-frame-pointer', '-funwind-tables', '-fno-omit-leaf-frame-pointer'],
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'default': ['-O1']
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},
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'sanitize': {
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'msvc': ['/Od', '/RTC1'],
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'gcc': ['-Og', '-fsanitize=undefined', '-fsanitize=address'],
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'clang': ['-O0', '-fsanitize=undefined', '-fsanitize=address'],
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'default': ['-O0']
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},
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'nooptimize': {
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'msvc': ['/Od'],
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'default': ['-O0']
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}
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}
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LTO_CFLAGS = {
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'msvc': ['/GL'],
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'gcc': ['-flto'],
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'clang': ['-flto']
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}
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LTO_LINKFLAGS = {
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'msvc': ['/LTCG'],
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'gcc': ['-flto'],
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'clang': ['-flto']
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}
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POLLY_CFLAGS = {
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'gcc': ['-fgraphite-identity'],
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'clang': ['-mllvm', '-polly']
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# msvc sosat :(
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}
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def options(opt):
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grp = opt.add_option_group('Compiler optimization options')
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grp.add_option('-T', '--build-type', action='store', dest='BUILD_TYPE', default=None,
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help = 'build type: debug, release or none(custom flags)')
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grp.add_option('--enable-lto', action = 'store_true', dest = 'LTO', default = False,
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help = 'enable Link Time Optimization if possible [default: %default]')
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grp.add_option('--enable-poly-opt', action = 'store_true', dest = 'POLLY', default = False,
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help = 'enable polyhedral optimization if possible [default: %default]')
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def configure(conf):
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conf.start_msg('Build type')
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if conf.options.BUILD_TYPE == None:
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conf.end_msg('not set', color='RED')
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conf.fatal('Set a build type, for example "-T release"')
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elif not conf.options.BUILD_TYPE in VALID_BUILD_TYPES:
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conf.end_msg(conf.options.BUILD_TYPE, color='RED')
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conf.fatal('Invalid build type. Valid are: %s' % ', '.join(VALID_BUILD_TYPES))
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conf.end_msg(conf.options.BUILD_TYPE)
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conf.msg('LTO build', 'yes' if conf.options.LTO else 'no')
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conf.msg('PolyOpt build', 'yes' if conf.options.POLLY else 'no')
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# -march=native should not be used
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if conf.options.BUILD_TYPE.startswith('fast'):
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Logs.warn('WARNING: \'%s\' build type should not be used in release builds', conf.options.BUILD_TYPE)
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try:
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conf.env.CC_VERSION[0]
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except IndexError:
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conf.env.CC_VERSION = (0,)
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@conf
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def get_optimization_flags(conf):
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'''Returns a list of compile flags,
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depending on build type and options set by user
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NOTE: it doesn't filter out unsupported flags
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:returns: tuple of cflags and linkflags
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'''
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linkflags = conf.get_flags_by_type(LINKFLAGS, conf.options.BUILD_TYPE, conf.env.COMPILER_CC, conf.env.CC_VERSION[0])
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cflags = conf.get_flags_by_type(CFLAGS, conf.options.BUILD_TYPE, conf.env.COMPILER_CC, conf.env.CC_VERSION[0])
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if conf.options.LTO:
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linkflags+= conf.get_flags_by_compiler(LTO_LINKFLAGS, conf.env.COMPILER_CC)
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cflags += conf.get_flags_by_compiler(LTO_CFLAGS, conf.env.COMPILER_CC)
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if conf.options.POLLY:
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cflags += conf.get_flags_by_compiler(POLLY_CFLAGS, conf.env.COMPILER_CC)
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return cflags, linkflags
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