scons/gallium.py

   1 """gallium
   2
   3 Frontend-tool for Gallium3D architecture.
   4
   5 """
   6
   7 #
   8 # Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
   9 # All Rights Reserved.
  10 #
  11 # Permission is hereby granted, free of charge, to any person obtaining a
  12 # copy of this software and associated documentation files (the
  13 # "Software"), to deal in the Software without restriction, including
  14 # without limitation the rights to use, copy, modify, merge, publish,
  15 # distribute, sub license, and/or sell copies of the Software, and to
  16 # permit persons to whom the Software is furnished to do so, subject to
  17 # the following conditions:
  18 #
  19 # The above copyright notice and this permission notice (including the
  20 # next paragraph) shall be included in all copies or substantial portions
  21 # of the Software.
  22 #
  23 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  24 # OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  26 # IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  27 # ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  28 # TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  29 # SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  30 #
  31
  32
  33 import distutils.version
  34 import os
  35 import os.path
  36 import re
  37 import subprocess
  38
  39 import SCons.Action
  40 import SCons.Builder
  41 import SCons.Scanner
  42
  43
  44 def symlink(target, source, env):
  45     target = str(target[0])
  46     source = str(source[0])
  47     if os.path.islink(target) or os.path.exists(target):
  48         os.remove(target)
  49     os.symlink(os.path.basename(source), target)
  50
  51 def install(env, source, subdir):
  52     target_dir = os.path.join(env.Dir('#.').srcnode().abspath, env['build'], subdir)
  53     env.Install(target_dir, source)
  54
  55 def install_program(env, source):
  56     install(env, source, 'bin')
  57
  58 def install_shared_library(env, sources, version = ()):
  59     install_dir = os.path.join(env.Dir('#.').srcnode().abspath, env['build'])
  60     version = tuple(map(str, version))
  61     if env['SHLIBSUFFIX'] == '.dll':
  62         dlls = env.FindIxes(sources, 'SHLIBPREFIX', 'SHLIBSUFFIX')
  63         install(env, dlls, 'bin')
  64         libs = env.FindIxes(sources, 'LIBPREFIX', 'LIBSUFFIX')
  65         install(env, libs, 'lib')
  66     else:
  67         for source in sources:
  68             target_dir =  os.path.join(install_dir, 'lib')
  69             target_name = '.'.join((str(source),) + version)
  70             last = env.InstallAs(os.path.join(target_dir, target_name), source)
  71             while len(version):
  72                 version = version[:-1]
  73                 target_name = '.'.join((str(source),) + version)
  74                 action = SCons.Action.Action(symlink, "$TARGET -> $SOURCE")
  75                 last = env.Command(os.path.join(target_dir, target_name), last, action)
  76
  77 def createInstallMethods(env):
  78     env.AddMethod(install_program, 'InstallProgram')
  79     env.AddMethod(install_shared_library, 'InstallSharedLibrary')
  80
  81
  82 def num_jobs():
  83     try:
  84         return int(os.environ['NUMBER_OF_PROCESSORS'])
  85     except (ValueError, KeyError):
  86         pass
  87
  88     try:
  89         return os.sysconf('SC_NPROCESSORS_ONLN')
  90     except (ValueError, OSError, AttributeError):
  91         pass
  92
  93     try:
  94         return int(os.popen2("sysctl -n hw.ncpu")[1].read())
  95     except ValueError:
  96         pass
  97
  98     return 1
  99
 100
 101 def generate(env):
 102     """Common environment generation code"""
 103
 104     # Toolchain
 105     platform = env['platform']
 106     if env['toolchain'] == 'default':
 107         if platform == 'winddk':
 108             env['toolchain'] = 'winddk'
 109         elif platform == 'wince':
 110             env['toolchain'] = 'wcesdk'
 111     env.Tool(env['toolchain'])
 112
 113     if env['platform'] == 'embedded':
 114         # Allow overriding compiler from environment
 115         if os.environ.has_key('CC'):
 116             env['CC'] = os.environ['CC']
 117             # Update CCVERSION to match
 118             pipe = SCons.Action._subproc(env, [env['CC'], '--version'],
 119                                          stdin = 'devnull',
 120                                          stderr = 'devnull',
 121                                          stdout = subprocess.PIPE)
 122             if pipe.wait() == 0:
 123                 line = pipe.stdout.readline()
 124                 match = re.search(r'[0-9]+(\.[0-9]+)+', line)
 125                 if match:
 126                     env['CCVERSION'] = match.group(0)
 127
 128
 129     env['gcc'] = 'gcc' in os.path.basename(env['CC']).split('-')
 130     env['msvc'] = env['CC'] == 'cl'
 131
 132     # shortcuts
 133     debug = env['debug']
 134     machine = env['machine']
 135     platform = env['platform']
 136     x86 = env['machine'] == 'x86'
 137     ppc = env['machine'] == 'ppc'
 138     gcc = env['gcc']
 139     msvc = env['msvc']
 140
 141     # Put build output in a separate dir, which depends on the current
 142     # configuration. See also http://www.scons.org/wiki/AdvancedBuildExample
 143     build_topdir = 'build'
 144     build_subdir = env['platform']
 145     if env['machine'] != 'generic':
 146         build_subdir += '-' + env['machine']
 147     if env['debug']:
 148         build_subdir += "-debug"
 149     if env['profile']:
 150         build_subdir += "-profile"
 151     build_dir = os.path.join(build_topdir, build_subdir)
 152     # Place the .sconsign file in the build dir too, to avoid issues with
 153     # different scons versions building the same source file
 154     env['build'] = build_dir
 155     env.SConsignFile(os.path.join(build_dir, '.sconsign'))
 156     if 'SCONS_CACHE_DIR' in os.environ:
 157         print 'scons: Using build cache in %s.' % (os.environ['SCONS_CACHE_DIR'],)
 158         env.CacheDir(os.environ['SCONS_CACHE_DIR'])
 159     env['CONFIGUREDIR'] = os.path.join(build_dir, 'conf')
 160     env['CONFIGURELOG'] = os.path.join(os.path.abspath(build_dir), 'config.log')
 161
 162     # Parallel build
 163     if env.GetOption('num_jobs') <= 1:
 164         env.SetOption('num_jobs', num_jobs())
 165
 166     # C preprocessor options
 167     cppdefines = []
 168     if debug:
 169         cppdefines += ['DEBUG']
 170     else:
 171         cppdefines += ['NDEBUG']
 172     if env['profile']:
 173         cppdefines += ['PROFILE']
 174     if platform == 'windows':
 175         cppdefines += [
 176             'WIN32',
 177             '_WINDOWS',
 178             #'_UNICODE',
 179             #'UNICODE',
 180             # http://msdn.microsoft.com/en-us/library/aa383745.aspx
 181             ('_WIN32_WINNT', '0x0601'),
 182             ('WINVER', '0x0601'),
 183         ]
 184         if msvc and env['toolchain'] != 'winddk':
 185             cppdefines += [
 186                 'VC_EXTRALEAN',
 187                 '_USE_MATH_DEFINES',
 188                 '_CRT_SECURE_NO_WARNINGS',
 189                 '_CRT_SECURE_NO_DEPRECATE',
 190                 '_SCL_SECURE_NO_WARNINGS',
 191                 '_SCL_SECURE_NO_DEPRECATE',
 192             ]
 193         if debug:
 194             cppdefines += ['_DEBUG']
 195     if env['toolchain'] == 'winddk':
 196         # Mimic WINDDK's builtin flags. See also:
 197         # - WINDDK's bin/makefile.new i386mk.inc for more info.
 198         # - buildchk_wxp_x86.log files, generated by the WINDDK's build
 199         # - http://alter.org.ua/docs/nt_kernel/vc8_proj/
 200         if machine == 'x86':
 201             cppdefines += ['_X86_', 'i386']
 202         if machine == 'x86_64':
 203             cppdefines += ['_AMD64_', 'AMD64']
 204     if platform == 'winddk':
 205         cppdefines += [
 206             'STD_CALL',
 207             ('CONDITION_HANDLING', '1'),
 208             ('NT_INST', '0'),
 209             ('WIN32', '100'),
 210             ('_NT1X_', '100'),
 211             ('WINNT', '1'),
 212             ('_WIN32_WINNT', '0x0501'), # minimum required OS version
 213             ('WINVER', '0x0501'),
 214             ('_WIN32_IE', '0x0603'),
 215             ('WIN32_LEAN_AND_MEAN', '1'),
 216             ('DEVL', '1'),
 217             ('__BUILDMACHINE__', 'WinDDK'),
 218             ('FPO', '0'),
 219         ]
 220         if debug:
 221             cppdefines += [('DBG', 1)]
 222     if platform == 'wince':
 223         cppdefines += [
 224             '_CRT_SECURE_NO_DEPRECATE',
 225             '_USE_32BIT_TIME_T',
 226             'UNICODE',
 227             '_UNICODE',
 228             ('UNDER_CE', '600'),
 229             ('_WIN32_WCE', '0x600'),
 230             'WINCEOEM',
 231             'WINCEINTERNAL',
 232             'WIN32',
 233             'STRICT',
 234             'x86',
 235             '_X86_',
 236             'INTERNATIONAL',
 237             ('INTLMSG_CODEPAGE', '1252'),
 238         ]
 239     if platform == 'windows':
 240         cppdefines += ['PIPE_SUBSYSTEM_WINDOWS_USER']
 241     if platform == 'winddk':
 242         cppdefines += ['PIPE_SUBSYSTEM_WINDOWS_DISPLAY']
 243     if platform == 'wince':
 244         cppdefines += ['PIPE_SUBSYSTEM_WINDOWS_CE']
 245         cppdefines += ['PIPE_SUBSYSTEM_WINDOWS_CE_OGL']
 246     if platform == 'embedded':
 247         cppdefines += ['PIPE_OS_EMBEDDED']
 248     env.Append(CPPDEFINES = cppdefines)
 249
 250     # C compiler options
 251     cflags = [] # C
 252     cxxflags = [] # C++
 253     ccflags = [] # C & C++
 254     if gcc:
 255         ccversion = env['CCVERSION']
 256         if debug:
 257             ccflags += ['-O0', '-g3']
 258         elif ccversion.startswith('4.2.'):
 259             # gcc 4.2.x optimizer is broken
 260             print "warning: gcc 4.2.x optimizer is broken -- disabling optimizations"
 261             ccflags += ['-O0', '-g3']
 262         else:
 263             ccflags += ['-O3', '-g3']
 264         if env['profile']:
 265             # See http://code.google.com/p/jrfonseca/wiki/Gprof2Dot#Which_options_should_I_pass_to_gcc_when_compiling_for_profiling?
 266             ccflags += [
 267                 '-fno-omit-frame-pointer',
 268                 '-fno-optimize-sibling-calls',
 269             ]
 270         if env['machine'] == 'x86':
 271             ccflags += [
 272                 '-m32',
 273                 #'-march=pentium4',
 274                 #'-mfpmath=sse',
 275             ]
 276             if platform != 'windows':
 277                 # XXX: -mstackrealign causes stack corruption on MinGW. Ditto
 278                 # for -mincoming-stack-boundary=2.  Still enable it on other
 279                 # platforms for now, but we can't rely on it for cross platform
 280                 # code. We have to use __attribute__((force_align_arg_pointer))
 281                 # instead.
 282                 ccflags += [
 283                     '-mmmx', '-msse', '-msse2', # enable SIMD intrinsics
 284                 ]
 285             if platform in ['windows', 'darwin']:
 286                 # Workaround http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37216
 287                 ccflags += ['-fno-common']
 288             if distutils.version.LooseVersion(ccversion) >= distutils.version.LooseVersion('4.2'):
 289                 ccflags += [
 290                     '-mstackrealign', # ensure stack is aligned
 291                 ]
 292         if env['machine'] == 'x86_64':
 293             ccflags += ['-m64']
 294         # See also:
 295         # - http://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html
 296         ccflags += [
 297             '-Wall',
 298             '-Wno-long-long',
 299             '-ffast-math',
 300             '-fmessage-length=0', # be nice to Eclipse
 301         ]
 302         cflags += [
 303             '-Wmissing-prototypes',
 304             '-std=gnu99',
 305         ]
 306         if distutils.version.LooseVersion(ccversion) >= distutils.version.LooseVersion('4.0'):
 307             ccflags += [
 308                 '-Wmissing-field-initializers',
 309             ]
 310         if distutils.version.LooseVersion(ccversion) >= distutils.version.LooseVersion('4.2'):
 311             ccflags += [
 312                 '-Werror=pointer-arith',
 313             ]
 314             cflags += [
 315                 '-Werror=declaration-after-statement',
 316             ]
 317     if msvc:
 318         # See also:
 319         # - http://msdn.microsoft.com/en-us/library/19z1t1wy.aspx
 320         # - cl /?
 321         if debug:
 322             ccflags += [
 323               '/Od', # disable optimizations
 324               '/Oi', # enable intrinsic functions
 325               '/Oy-', # disable frame pointer omission
 326               '/GL-', # disable whole program optimization
 327             ]
 328         else:
 329             ccflags += [
 330                 '/O2', # optimize for speed
 331                 '/GL', # enable whole program optimization
 332             ]
 333         ccflags += [
 334             '/fp:fast', # fast floating point
 335             '/W3', # warning level
 336             #'/Wp64', # enable 64 bit porting warnings
 337         ]
 338         if env['machine'] == 'x86':
 339             ccflags += [
 340                 #'/arch:SSE2', # use the SSE2 instructions
 341             ]
 342         if platform == 'windows':
 343             ccflags += [
 344                 # TODO
 345             ]
 346         if platform == 'winddk':
 347             ccflags += [
 348                 '/Zl', # omit default library name in .OBJ
 349                 '/Zp8', # 8bytes struct member alignment
 350                 '/Gy', # separate functions for linker
 351                 '/Gm-', # disable minimal rebuild
 352                 '/WX', # treat warnings as errors
 353                 '/Gz', # __stdcall Calling convention
 354                 '/GX-', # disable C++ EH
 355                 '/GR-', # disable C++ RTTI
 356                 '/GF', # enable read-only string pooling
 357                 '/G6', # optimize for PPro, P-II, P-III
 358                 '/Ze', # enable extensions
 359                 '/Gi-', # disable incremental compilation
 360                 '/QIfdiv-', # disable Pentium FDIV fix
 361                 '/hotpatch', # prepares an image for hotpatching.
 362                 #'/Z7', #enable old-style debug info
 363             ]
 364         if platform == 'wince':
 365             # See also C:\WINCE600\public\common\oak\misc\makefile.def
 366             ccflags += [
 367                 '/Zl', # omit default library name in .OBJ
 368                 '/GF', # enable read-only string pooling
 369                 '/GR-', # disable C++ RTTI
 370                 '/GS', # enable security checks
 371                 # Allow disabling language conformance to maintain backward compat
 372                 #'/Zc:wchar_t-', # don't force wchar_t as native type, instead of typedef
 373                 #'/Zc:forScope-', # don't enforce Standard C++ for scoping rules
 374                 #'/wd4867',
 375                 #'/wd4430',
 376                 #'/MT',
 377                 #'/U_MT',
 378             ]
 379         # Automatic pdb generation
 380         # See http://scons.tigris.org/issues/show_bug.cgi?id=1656
 381         env.EnsureSConsVersion(0, 98, 0)
 382         env['PDB'] = '${TARGET.base}.pdb'
 383     env.Append(CCFLAGS = ccflags)
 384     env.Append(CFLAGS = cflags)
 385     env.Append(CXXFLAGS = cxxflags)
 386
 387     if env['platform'] == 'windows' and msvc:
 388         # Choose the appropriate MSVC CRT
 389         # http://msdn.microsoft.com/en-us/library/2kzt1wy3.aspx
 390         if env['debug']:
 391             env.Append(CCFLAGS = ['/MTd'])
 392             env.Append(SHCCFLAGS = ['/LDd'])
 393         else:
 394             env.Append(CCFLAGS = ['/MT'])
 395             env.Append(SHCCFLAGS = ['/LD'])
 396
 397     # Assembler options
 398     if gcc:
 399         if env['machine'] == 'x86':
 400             env.Append(ASFLAGS = ['-m32'])
 401         if env['machine'] == 'x86_64':
 402             env.Append(ASFLAGS = ['-m64'])
 403
 404     # Linker options
 405     linkflags = []
 406     shlinkflags = []
 407     if gcc:
 408         if env['machine'] == 'x86':
 409             linkflags += ['-m32']
 410         if env['machine'] == 'x86_64':
 411             linkflags += ['-m64']
 412         if env['platform'] not in ('darwin'):
 413             shlinkflags += [
 414                 '-Wl,-Bsymbolic',
 415             ]
 416         # Handle circular dependencies in the libraries
 417         if env['platform'] in ('darwin'):
 418             pass
 419         else:
 420             env['_LIBFLAGS'] = '-Wl,--start-group ' + env['_LIBFLAGS'] + ' -Wl,--end-group'
 421     if msvc:
 422         if not env['debug']:
 423             # enable Link-time Code Generation
 424             linkflags += ['/LTCG']
 425             env.Append(ARFLAGS = ['/LTCG'])
 426     if platform == 'windows' and msvc:
 427         # See also:
 428         # - http://msdn2.microsoft.com/en-us/library/y0zzbyt4.aspx
 429         linkflags += [
 430             '/fixed:no',
 431             '/incremental:no',
 432         ]
 433     if platform == 'winddk':
 434         linkflags += [
 435             '/merge:_PAGE=PAGE',
 436             '/merge:_TEXT=.text',
 437             '/section:INIT,d',
 438             '/opt:ref',
 439             '/opt:icf',
 440             '/ignore:4198,4010,4037,4039,4065,4070,4078,4087,4089,4221',
 441             '/incremental:no',
 442             '/fullbuild',
 443             '/release',
 444             '/nodefaultlib',
 445             '/wx',
 446             '/debug',
 447             '/debugtype:cv',
 448             '/version:5.1',
 449             '/osversion:5.1',
 450             '/functionpadmin:5',
 451             '/safeseh',
 452             '/pdbcompress',
 453             '/stack:0x40000,0x1000',
 454             '/driver',
 455             '/align:0x80',
 456             '/subsystem:native,5.01',
 457             '/base:0x10000',
 458
 459             '/entry:DrvEnableDriver',
 460         ]
 461         if env['debug'] or env['profile']:
 462             linkflags += [
 463                 '/MAP', # http://msdn.microsoft.com/en-us/library/k7xkk3e2.aspx
 464             ]
 465     if platform == 'wince':
 466         linkflags += [
 467             '/nodefaultlib',
 468             #'/incremental:no',
 469             #'/fullbuild',
 470             '/entry:_DllMainCRTStartup',
 471         ]
 472     env.Append(LINKFLAGS = linkflags)
 473     env.Append(SHLINKFLAGS = shlinkflags)
 474
 475     # Default libs
 476     env.Append(LIBS = [])
 477
 478     # Load LLVM
 479     if env['llvm']:
 480         env.Tool('llvm')
 481
 482     # Custom builders and methods
 483     env.Tool('custom')
 484     createInstallMethods(env)
 485
 486     # for debugging
 487     #print env.Dump()
 488
 489
 490 def exists(env):
 491     return 1