| # Copyright 2008 the V8 project authors. All rights reserved. |
| # Redistribution and use in source and binary forms, with or without |
| # modification, are permitted provided that the following conditions are |
| # met: |
| # |
| # * Redistributions of source code must retain the above copyright |
| # notice, this list of conditions and the following disclaimer. |
| # * Redistributions in binary form must reproduce the above |
| # copyright notice, this list of conditions and the following |
| # disclaimer in the documentation and/or other materials provided |
| # with the distribution. |
| # * Neither the name of Google Inc. nor the names of its |
| # contributors may be used to endorse or promote products derived |
| # from this software without specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| import platform |
| import re |
| import sys |
| import os |
| from os.path import join, dirname, abspath |
| from types import DictType |
| root_dir = dirname(File('SConstruct').rfile().abspath) |
| sys.path.append(join(root_dir, 'tools')) |
| import js2c, utils |
| |
| |
| LIBRARY_FLAGS = { |
| 'all': { |
| 'CPPDEFINES': ['ENABLE_LOGGING_AND_PROFILING'] |
| }, |
| 'gcc': { |
| 'all': { |
| 'DIALECTFLAGS': ['-ansi'], |
| 'CCFLAGS': ['$DIALECTFLAGS', '$WARNINGFLAGS', |
| '-fno-strict-aliasing'], |
| 'CXXFLAGS': ['$CCFLAGS', '-fno-rtti', '-fno-exceptions'], |
| 'LIBS': ['pthread'] |
| }, |
| 'mode:debug': { |
| 'CCFLAGS': ['-g', '-O0'], |
| 'CPPDEFINES': ['ENABLE_DISASSEMBLER', 'DEBUG'] |
| }, |
| 'mode:release': { |
| 'CCFLAGS': ['-O2'] |
| }, |
| 'wordsize:64': { |
| 'CCFLAGS': ['-m32'], |
| 'LINKFLAGS': ['-m32'] |
| } |
| }, |
| 'msvc': { |
| 'all': { |
| 'DIALECTFLAGS': ['/nologo'], |
| 'CCFLAGS': ['$DIALECTFLAGS', '$WARNINGFLAGS'], |
| 'CXXFLAGS': ['$CCFLAGS', '/GR-', '/Gy'], |
| 'CPPDEFINES': ['WIN32', '_USE_32BIT_TIME_T', 'PCRE_STATIC'], |
| 'LINKFLAGS': ['/NOLOGO', '/MACHINE:X86', '/INCREMENTAL:NO', |
| '/NXCOMPAT', '/IGNORE:4221'], |
| 'ARFLAGS': ['/NOLOGO'], |
| 'CCPDBFLAGS': ['/Zi'] |
| }, |
| 'mode:debug': { |
| 'CCFLAGS': ['/Od', '/Gm', '/MTd'], |
| 'CPPDEFINES': ['_DEBUG', 'ENABLE_DISASSEMBLER', 'DEBUG'], |
| 'LINKFLAGS': ['/DEBUG'] |
| }, |
| 'mode:release': { |
| 'CCFLAGS': ['/Ox', '/MT', '/Ob2', '/Oi', '/Oy'], |
| 'LINKFLAGS': ['/OPT:REF', '/OPT:ICF'] |
| } |
| } |
| } |
| |
| |
| V8_EXTRA_FLAGS = { |
| 'gcc': { |
| 'all': { |
| 'CXXFLAGS': [], #['-fvisibility=hidden'], |
| 'WARNINGFLAGS': ['-pedantic', '-Wall', '-Werror', '-W', |
| '-Wno-unused-parameter'] |
| }, |
| 'arch:arm': { |
| 'CPPDEFINES': ['ARM'] |
| }, |
| 'disassembler:on': { |
| 'CPPDEFINES': ['ENABLE_DISASSEMBLER'] |
| } |
| }, |
| 'msvc': { |
| 'all': { |
| 'WARNINGFLAGS': ['/W3', '/WX', '/wd4355', '/wd4800'] |
| }, |
| 'library:shared': { |
| 'CPPDEFINES': ['BUILDING_V8_SHARED'] |
| }, |
| 'arch:arm': { |
| 'CPPDEFINES': ['ARM'] |
| }, |
| 'disassembler:on': { |
| 'CPPDEFINES': ['ENABLE_DISASSEMBLER'] |
| } |
| } |
| } |
| |
| |
| JSCRE_EXTRA_FLAGS = { |
| 'gcc': { |
| 'all': { |
| 'CPPDEFINES': ['SUPPORT_UTF8', 'NO_RECURSE', 'SUPPORT_UCP'], |
| 'WARNINGFLAGS': ['-w'] |
| }, |
| }, |
| 'msvc': { |
| 'all': { |
| 'CPPDEFINES': ['SUPPORT_UTF8', 'NO_RECURSE', 'SUPPORT_UCP'], |
| 'WARNINGFLAGS': ['/W3', '/WX', '/wd4355', '/wd4800'] |
| }, |
| 'library:shared': { |
| 'CPPDEFINES': ['BUILDING_V8_SHARED'] |
| } |
| } |
| } |
| |
| |
| DTOA_EXTRA_FLAGS = { |
| 'gcc': { |
| 'all': { |
| 'WARNINGFLAGS': ['-Werror'] |
| } |
| }, |
| 'msvc': { |
| 'all': { |
| 'WARNINGFLAGS': ['/WX', '/wd4018', '/wd4244'] |
| } |
| } |
| } |
| |
| |
| CCTEST_EXTRA_FLAGS = { |
| 'all': { |
| 'CPPPATH': [join(root_dir, 'src')], |
| 'LIBS': ['$LIBRARY'] |
| }, |
| 'gcc': { |
| 'all': { |
| 'LIBPATH': [abspath('.')] |
| }, |
| 'wordsize:64': { |
| 'CCFLAGS': ['-m32'], |
| 'LINKFLAGS': ['-m32'] |
| }, |
| }, |
| 'msvc': { |
| 'all': { |
| 'CPPDEFINES': ['_HAS_EXCEPTIONS=0'] |
| }, |
| 'library:shared': { |
| 'CPPDEFINES': ['USING_V8_SHARED'] |
| } |
| } |
| } |
| |
| |
| SAMPLE_FLAGS = { |
| 'all': { |
| 'CPPPATH': [join(abspath('.'), 'include')], |
| 'LIBS': ['$LIBRARY'], |
| }, |
| 'gcc': { |
| 'all': { |
| 'LIBS': ['pthread'], |
| 'LIBPATH': ['.'] |
| }, |
| 'wordsize:64': { |
| 'CCFLAGS': ['-m32'], |
| 'LINKFLAGS': ['-m32'] |
| }, |
| 'mode:debug': { |
| 'CCFLAGS': ['-g', '-O0'] |
| } |
| }, |
| 'msvc': { |
| 'all': { |
| 'CCFLAGS': ['/nologo'], |
| }, |
| 'library:shared': { |
| 'CPPDEFINES': ['USING_V8_SHARED'] |
| }, |
| 'mode:release': { |
| 'CCFLAGS': ['/MT'], |
| }, |
| 'mode:debug': { |
| 'CCFLAGS': ['/MTd'] |
| } |
| } |
| } |
| |
| |
| SUFFIXES = { |
| 'release': '', |
| 'debug': '_g' |
| } |
| |
| |
| def Abort(message): |
| print message |
| sys.exit(1) |
| |
| |
| def GuessOS(): |
| id = platform.system() |
| if id == 'Linux': |
| return 'linux' |
| elif id == 'Darwin': |
| return 'macos' |
| elif id == 'Windows': |
| return 'win32' |
| else: |
| return None |
| |
| |
| def GuessWordsize(): |
| if '64' in platform.machine(): |
| return '64' |
| else: |
| return '32' |
| |
| |
| def GuessToolchain(os): |
| tools = Environment()['TOOLS'] |
| if 'gcc' in tools: |
| return 'gcc' |
| elif 'msvc' in tools: |
| return 'msvc' |
| else: |
| return None |
| |
| |
| OS_GUESS = GuessOS() |
| TOOLCHAIN_GUESS = GuessToolchain(OS_GUESS) |
| ARCH_GUESS = utils.GuessArchitecture() |
| WORDSIZE_GUESS = GuessWordsize() |
| |
| |
| SIMPLE_OPTIONS = { |
| 'toolchain': { |
| 'values': ['gcc', 'msvc'], |
| 'default': TOOLCHAIN_GUESS, |
| 'help': 'the toolchain to use' |
| }, |
| 'os': { |
| 'values': ['linux', 'macos', 'win32'], |
| 'default': OS_GUESS, |
| 'help': 'the os to build for' |
| }, |
| 'arch': { |
| 'values':['arm', 'ia32'], |
| 'default': ARCH_GUESS, |
| 'help': 'the architecture to build for' |
| }, |
| 'snapshot': { |
| 'values': ['on', 'off'], |
| 'default': 'off', |
| 'help': 'build using snapshots for faster start-up' |
| }, |
| 'library': { |
| 'values': ['static', 'shared'], |
| 'default': 'static', |
| 'help': 'the type of library to produce' |
| }, |
| 'wordsize': { |
| 'values': ['64', '32'], |
| 'default': WORDSIZE_GUESS, |
| 'help': 'the word size' |
| }, |
| 'simulator': { |
| 'values': ['arm', 'none'], |
| 'default': 'none', |
| 'help': 'build with simulator' |
| }, |
| 'disassembler': { |
| 'values': ['on', 'off'], |
| 'default': 'off', |
| 'help': 'enable the disassembler to inspect generated code' |
| }, |
| 'sourcesignatures': { |
| 'values': ['MD5', 'timestamp'], |
| 'default': 'MD5', |
| 'help': 'set how the build system detects file changes' |
| } |
| } |
| |
| |
| def GetOptions(): |
| result = Options() |
| result.Add('mode', 'compilation mode (debug, release)', 'release') |
| result.Add('sample', 'build sample (shell, process)', '') |
| result.Add('env', 'override environment settings (NAME1:value1,NAME2:value2)', '') |
| for (name, option) in SIMPLE_OPTIONS.items(): |
| help = '%s (%s)' % (name, ", ".join(option['values'])) |
| result.Add(name, help, option.get('default')) |
| return result |
| |
| |
| def SplitList(str): |
| return [ s for s in str.split(",") if len(s) > 0 ] |
| |
| |
| def IsLegal(env, option, values): |
| str = env[option] |
| for s in SplitList(str): |
| if not s in values: |
| Abort("Illegal value for option %s '%s'." % (option, s)) |
| return False |
| return True |
| |
| |
| def VerifyOptions(env): |
| if not IsLegal(env, 'mode', ['debug', 'release']): |
| return False |
| if not IsLegal(env, 'sample', ["shell", "process"]): |
| return False |
| for (name, option) in SIMPLE_OPTIONS.items(): |
| if (not option.get('default')) and (name not in ARGUMENTS): |
| message = ("A value for option %s must be specified (%s)." % |
| (name, ", ".join(option['values']))) |
| Abort(message) |
| if not env[name] in option['values']: |
| message = ("Unknown %s value '%s'. Possible values are (%s)." % |
| (name, env[name], ", ".join(option['values']))) |
| Abort(message) |
| |
| |
| class BuildContext(object): |
| |
| def __init__(self, options, env_overrides, samples): |
| self.library_targets = [] |
| self.cctest_targets = [] |
| self.sample_targets = [] |
| self.options = options |
| self.env_overrides = env_overrides |
| self.samples = samples |
| self.use_snapshot = (options['snapshot'] == 'on') |
| self.flags = None |
| |
| def AddRelevantFlags(self, initial, flags): |
| result = initial.copy() |
| self.AppendFlags(result, flags.get('all')) |
| toolchain = self.options['toolchain'] |
| self.AppendFlags(result, flags[toolchain].get('all')) |
| for option in sorted(self.options.keys()): |
| value = self.options[option] |
| self.AppendFlags(result, flags[toolchain].get(option + ':' + value)) |
| return result |
| |
| def GetRelevantSources(self, source): |
| result = [] |
| result += source.get('all', []) |
| for (name, value) in self.options.items(): |
| result += source.get(name + ':' + value, []) |
| return sorted(result) |
| |
| def AppendFlags(self, options, added): |
| if not added: |
| return |
| for (key, value) in added.items(): |
| if not key in options: |
| options[key] = value |
| else: |
| options[key] = options[key] + value |
| |
| def ConfigureObject(self, env, input, **kw): |
| if self.options['library'] == 'static': |
| return env.StaticObject(input, **kw) |
| else: |
| return env.SharedObject(input, **kw) |
| |
| def ApplyEnvOverrides(self, env): |
| if not self.env_overrides: |
| return |
| if type(env['ENV']) == DictType: |
| env['ENV'].update(**self.env_overrides) |
| else: |
| env['ENV'] = self.env_overrides |
| |
| |
| def PostprocessOptions(options): |
| # Adjust architecture if the simulator option has been set |
| if (options['simulator'] != 'none') and (options['arch'] != options['simulator']): |
| if 'arch' in ARGUMENTS: |
| # Print a warning if arch has explicitly been set |
| print "Warning: forcing architecture to match simulator (%s)" % options['simulator'] |
| options['arch'] = options['simulator'] |
| |
| |
| def ParseEnvOverrides(arg): |
| # The environment overrides are in the format NAME1:value1,NAME2:value2 |
| overrides = {} |
| for override in arg.split(','): |
| pos = override.find(':') |
| if pos == -1: |
| continue |
| overrides[override[:pos].strip()] = override[pos+1:].strip() |
| return overrides |
| |
| |
| def BuildSpecific(env, mode, env_overrides): |
| options = {'mode': mode} |
| for option in SIMPLE_OPTIONS: |
| options[option] = env[option] |
| PostprocessOptions(options) |
| |
| context = BuildContext(options, env_overrides, samples=SplitList(env['sample'])) |
| |
| library_flags = context.AddRelevantFlags(os.environ, LIBRARY_FLAGS) |
| v8_flags = context.AddRelevantFlags(library_flags, V8_EXTRA_FLAGS) |
| jscre_flags = context.AddRelevantFlags(library_flags, JSCRE_EXTRA_FLAGS) |
| dtoa_flags = context.AddRelevantFlags(library_flags, DTOA_EXTRA_FLAGS) |
| cctest_flags = context.AddRelevantFlags(v8_flags, CCTEST_EXTRA_FLAGS) |
| sample_flags = context.AddRelevantFlags(os.environ, SAMPLE_FLAGS) |
| |
| context.flags = { |
| 'v8': v8_flags, |
| 'jscre': jscre_flags, |
| 'dtoa': dtoa_flags, |
| 'cctest': cctest_flags, |
| 'sample': sample_flags |
| } |
| |
| target_id = mode |
| suffix = SUFFIXES[target_id] |
| library_name = 'v8' + suffix |
| env['LIBRARY'] = library_name |
| |
| # Build the object files by invoking SCons recursively. |
| object_files = env.SConscript( |
| join('src', 'SConscript'), |
| build_dir=join('obj', target_id), |
| exports='context', |
| duplicate=False |
| ) |
| |
| # Link the object files into a library. |
| env.Replace(**context.flags['v8']) |
| context.ApplyEnvOverrides(env) |
| if context.options['library'] == 'static': |
| library = env.StaticLibrary(library_name, object_files) |
| else: |
| # There seems to be a glitch in the way scons decides where to put |
| # PDB files when compiling using MSVC so we specify it manually. |
| # This should not affect any other platforms. |
| pdb_name = library_name + '.dll.pdb' |
| library = env.SharedLibrary(library_name, object_files, PDB=pdb_name) |
| context.library_targets.append(library) |
| |
| for sample in context.samples: |
| sample_env = Environment(LIBRARY=library_name) |
| sample_env.Replace(**context.flags['sample']) |
| context.ApplyEnvOverrides(sample_env) |
| sample_object = sample_env.SConscript( |
| join('samples', 'SConscript'), |
| build_dir=join('obj', 'sample', sample, target_id), |
| exports='sample context', |
| duplicate=False |
| ) |
| sample_name = sample + suffix |
| sample_program = sample_env.Program(sample_name, sample_object) |
| sample_env.Depends(sample_program, library) |
| context.sample_targets.append(sample_program) |
| |
| cctest_program = env.SConscript( |
| join('test', 'cctest', 'SConscript'), |
| build_dir=join('obj', 'test', target_id), |
| exports='context object_files', |
| duplicate=False |
| ) |
| context.cctest_targets.append(cctest_program) |
| |
| return context |
| |
| |
| def Build(): |
| opts = GetOptions() |
| env = Environment(options=opts) |
| Help(opts.GenerateHelpText(env)) |
| VerifyOptions(env) |
| env_overrides = ParseEnvOverrides(env['env']) |
| |
| SourceSignatures(env['sourcesignatures']) |
| |
| libraries = [] |
| cctests = [] |
| samples = [] |
| modes = SplitList(env['mode']) |
| for mode in modes: |
| context = BuildSpecific(env.Copy(), mode, env_overrides) |
| libraries += context.library_targets |
| cctests += context.cctest_targets |
| samples += context.sample_targets |
| |
| env.Alias('library', libraries) |
| env.Alias('cctests', cctests) |
| env.Alias('sample', samples) |
| |
| if env['sample']: |
| env.Default('sample') |
| else: |
| env.Default('library') |
| |
| |
| # We disable deprecation warnings because we need to be able to use |
| # env.Copy without getting warnings for compatibility with older |
| # version of scons. Also, there's a bug in some revisions that |
| # doesn't allow this flag to be set, so we swallow any exceptions. |
| # Lovely. |
| try: |
| SetOption('warn', 'no-deprecated') |
| except: |
| pass |
| |
| |
| Build() |