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 os
  34 import os.path
  35 import re
  36
  37 import SCons.Action
  38 import SCons.Builder
  39 import SCons.Scanner
  40
  41
  42 def quietCommandLines(env):
  43     # Quiet command lines
  44     # See also http://www.scons.org/wiki/HidingCommandLinesInOutput
  45     env['CCCOMSTR'] = "Compiling $SOURCE ..."
  46     env['CXXCOMSTR'] = "Compiling $SOURCE ..."
  47     env['ARCOMSTR'] = "Archiving $TARGET ..."
  48     env['RANLIBCOMSTR'] = ""
  49     env['LINKCOMSTR'] = "Linking $TARGET ..."
  50
  51
  52 def createConvenienceLibBuilder(env):
  53     """This is a utility function that creates the ConvenienceLibrary
  54     Builder in an Environment if it is not there already.
  55
  56     If it is already there, we return the existing one.
  57
  58     Based on the stock StaticLibrary and SharedLibrary builders.
  59     """
  60
  61     try:
  62         convenience_lib = env['BUILDERS']['ConvenienceLibrary']
  63     except KeyError:
  64         action_list = [ SCons.Action.Action("$ARCOM", "$ARCOMSTR") ]
  65         if env.Detect('ranlib'):
  66             ranlib_action = SCons.Action.Action("$RANLIBCOM", "$RANLIBCOMSTR")
  67             action_list.append(ranlib_action)
  68
  69         convenience_lib = SCons.Builder.Builder(action = action_list,
  70                                   emitter = '$LIBEMITTER',
  71                                   prefix = '$LIBPREFIX',
  72                                   suffix = '$LIBSUFFIX',
  73                                   src_suffix = '$SHOBJSUFFIX',
  74                                   src_builder = 'SharedObject')
  75         env['BUILDERS']['ConvenienceLibrary'] = convenience_lib
  76
  77     return convenience_lib
  78
  79
  80 # TODO: handle import statements with multiple modules
  81 # TODO: handle from import statements
  82 import_re = re.compile(r'^import\s+(\S+)$', re.M)
  83
  84 def python_scan(node, env, path):
  85     # http://www.scons.org/doc/0.98.5/HTML/scons-user/c2781.html#AEN2789
  86     contents = node.get_contents()
  87     source_dir = node.get_dir()
  88     imports = import_re.findall(contents)
  89     results = []
  90     for imp in imports:
  91         for dir in path:
  92             file = os.path.join(str(dir), imp.replace('.', os.sep) + '.py')
  93             if os.path.exists(file):
  94                 results.append(env.File(file))
  95                 break
  96             file = os.path.join(str(dir), imp.replace('.', os.sep), '__init__.py')
  97             if os.path.exists(file):
  98                 results.append(env.File(file))
  99                 break
 100     return results
 101
 102 python_scanner = SCons.Scanner.Scanner(function = python_scan, skeys = ['.py'])
 103
 104
 105 def code_generate(env, script, target, source, command):
 106     """Method to simplify code generation via python scripts.
 107
 108     http://www.scons.org/wiki/UsingCodeGenerators
 109     http://www.scons.org/doc/0.98.5/HTML/scons-user/c2768.html
 110     """
 111
 112     # We're generating code using Python scripts, so we have to be
 113     # careful with our scons elements.  This entry represents
 114     # the generator file *in the source directory*.
 115     script_src = env.File(script).srcnode()
 116
 117     # This command creates generated code *in the build directory*.
 118     command = command.replace('$SCRIPT', script_src.path)
 119     code = env.Command(target, source, command)
 120
 121     # Explicitly mark that the generated code depends on the generator,
 122     # and on implicitly imported python modules
 123     path = (script_src.get_dir(),)
 124     deps = [script_src]
 125     deps += script_src.get_implicit_deps(env, python_scanner, path)
 126     env.Depends(code, deps)
 127
 128     # Running the Python script causes .pyc files to be generated in the
 129     # source directory.  When we clean up, they should go too. So add side
 130     # effects for .pyc files
 131     for dep in deps:
 132         pyc = env.File(str(dep) + 'c')
 133         env.SideEffect(pyc, code)
 134
 135     return code
 136
 137
 138 def createCodeGenerateMethod(env):
 139     env.Append(SCANNERS = python_scanner)
 140     env.AddMethod(code_generate, 'CodeGenerate')
 141
 142
 143 def symlink(target, source, env):
 144     target = str(target[0])
 145     source = str(source[0])
 146     if os.path.islink(target) or os.path.exists(target):
 147         os.remove(target)
 148     os.symlink(os.path.basename(source), target)
 149
 150 def install_shared_library(env, source, version = ()):
 151     source = str(source[0])
 152     version = tuple(map(str, version))
 153     target_dir =  os.path.join(env.Dir('#.').srcnode().abspath, env['build'], 'lib')
 154     target_name = '.'.join((str(source),) + version)
 155     last = env.InstallAs(os.path.join(target_dir, target_name), source)
 156     while len(version):
 157         version = version[:-1]
 158         target_name = '.'.join((str(source),) + version)
 159         action = SCons.Action.Action(symlink, "$TARGET -> $SOURCE")
 160         last = env.Command(os.path.join(target_dir, target_name), last, action)
 161
 162 def createInstallMethods(env):
 163     env.AddMethod(install_shared_library, 'InstallSharedLibrary')
 164
 165
 166 def generate(env):
 167     """Common environment generation code"""
 168
 169     # FIXME: this is already too late
 170     #if env.get('quiet', False):
 171     #    quietCommandLines(env)
 172
 173     # Toolchain
 174     platform = env['platform']
 175     if env['toolchain'] == 'default':
 176         if platform == 'winddk':
 177             env['toolchain'] = 'winddk'
 178         elif platform == 'wince':
 179             env['toolchain'] = 'wcesdk'
 180     env.Tool(env['toolchain'])
 181
 182     # shortcuts
 183     debug = env['debug']
 184     machine = env['machine']
 185     platform = env['platform']
 186     x86 = env['machine'] == 'x86'
 187     gcc = env['platform'] in ('linux', 'freebsd', 'darwin') or env['toolchain'] == 'crossmingw'
 188     msvc = env['platform'] in ('windows', 'winddk', 'wince') and env['toolchain'] != 'crossmingw'
 189
 190     # Put build output in a separate dir, which depends on the current
 191     # configuration. See also http://www.scons.org/wiki/AdvancedBuildExample
 192     build_topdir = 'build'
 193     build_subdir = env['platform']
 194     if env['dri']:
 195         build_subdir += "-dri"
 196     if env['llvm']:
 197         build_subdir += "-llvm"
 198     if env['machine'] != 'generic':
 199         build_subdir += '-' + env['machine']
 200     if env['debug']:
 201         build_subdir += "-debug"
 202     if env['profile']:
 203         build_subdir += "-profile"
 204     build_dir = os.path.join(build_topdir, build_subdir)
 205     # Place the .sconsign file in the build dir too, to avoid issues with
 206     # different scons versions building the same source file
 207     env['build'] = build_dir
 208     env.SConsignFile(os.path.join(build_dir, '.sconsign'))
 209
 210     # C preprocessor options
 211     cppdefines = []
 212     if debug:
 213         cppdefines += ['DEBUG']
 214     else:
 215         cppdefines += ['NDEBUG']
 216     if env['profile']:
 217         cppdefines += ['PROFILE']
 218     if platform == 'windows':
 219         cppdefines += [
 220             'WIN32',
 221             '_WINDOWS',
 222             '_UNICODE',
 223             'UNICODE',
 224             ('_WIN32_WINNT', '0x0501'), # minimum required OS version
 225             ('WINVER', '0x0501'),
 226             # http://msdn2.microsoft.com/en-us/library/6dwk3a1z.aspx,
 227             'WIN32_LEAN_AND_MEAN',
 228             'VC_EXTRALEAN',
 229             '_CRT_SECURE_NO_DEPRECATE',
 230         ]
 231         if debug:
 232             cppdefines += ['_DEBUG']
 233     if platform == 'winddk':
 234         # Mimic WINDDK's builtin flags. See also:
 235         # - WINDDK's bin/makefile.new i386mk.inc for more info.
 236         # - buildchk_wxp_x86.log files, generated by the WINDDK's build
 237         # - http://alter.org.ua/docs/nt_kernel/vc8_proj/
 238         cppdefines += [
 239             ('_X86_', '1'),
 240             ('i386', '1'),
 241             'STD_CALL',
 242             ('CONDITION_HANDLING', '1'),
 243             ('NT_INST', '0'),
 244             ('WIN32', '100'),
 245             ('_NT1X_', '100'),
 246             ('WINNT', '1'),
 247             ('_WIN32_WINNT', '0x0501'), # minimum required OS version
 248             ('WINVER', '0x0501'),
 249             ('_WIN32_IE', '0x0603'),
 250             ('WIN32_LEAN_AND_MEAN', '1'),
 251             ('DEVL', '1'),
 252             ('__BUILDMACHINE__', 'WinDDK'),
 253             ('FPO', '0'),
 254         ]
 255         if debug:
 256             cppdefines += [('DBG', 1)]
 257     if platform == 'wince':
 258         cppdefines += [
 259             '_CRT_SECURE_NO_DEPRECATE',
 260             '_USE_32BIT_TIME_T',
 261             'UNICODE',
 262             '_UNICODE',
 263             ('UNDER_CE', '600'),
 264             ('_WIN32_WCE', '0x600'),
 265             'WINCEOEM',
 266             'WINCEINTERNAL',
 267             'WIN32',
 268             'STRICT',
 269             'x86',
 270             '_X86_',
 271             'INTERNATIONAL',
 272             ('INTLMSG_CODEPAGE', '1252'),
 273         ]
 274     if platform == 'windows':
 275         cppdefines += ['PIPE_SUBSYSTEM_WINDOWS_USER']
 276     if platform == 'winddk':
 277         cppdefines += ['PIPE_SUBSYSTEM_WINDOWS_DISPLAY']
 278     if platform == 'wince':
 279         cppdefines += ['PIPE_SUBSYSTEM_WINDOWS_CE']
 280     env.Append(CPPDEFINES = cppdefines)
 281
 282     # C preprocessor includes
 283     if platform == 'winddk':
 284         env.Append(CPPPATH = [
 285             env['SDK_INC_PATH'],
 286             env['DDK_INC_PATH'],
 287             env['WDM_INC_PATH'],
 288             env['CRT_INC_PATH'],
 289         ])
 290
 291     # C compiler options
 292     cflags = []
 293     if gcc:
 294         if debug:
 295             cflags += ['-O0', '-g3']
 296         else:
 297             cflags += ['-O3', '-g3']
 298         if env['profile']:
 299             cflags += ['-pg']
 300         if env['machine'] == 'x86':
 301             cflags += [
 302                 '-m32',
 303                 #'-march=pentium4',
 304                 '-mmmx', '-msse', '-msse2', # enable SIMD intrinsics
 305                 #'-mfpmath=sse',
 306             ]
 307         if env['machine'] == 'x86_64':
 308             cflags += ['-m64']
 309         cflags += [
 310             '-Wall',
 311             '-Wmissing-prototypes',
 312             '-Wno-long-long',
 313             '-ffast-math',
 314             '-pedantic',
 315             '-fmessage-length=0', # be nice to Eclipse
 316         ]
 317     if msvc:
 318         # See also:
 319         # - http://msdn.microsoft.com/en-us/library/19z1t1wy.aspx
 320         # - cl /?
 321         if debug:
 322             cflags += [
 323               '/Od', # disable optimizations
 324               '/Oi', # enable intrinsic functions
 325               '/Oy-', # disable frame pointer omission
 326             ]
 327         else:
 328             cflags += [
 329               '/Ox', # maximum optimizations
 330               '/Oi', # enable intrinsic functions
 331               '/Ot', # favor code speed
 332               #'/fp:fast', # fast floating point
 333             ]
 334         if env['profile']:
 335             cflags += [
 336                 '/Gh', # enable _penter hook function
 337                 '/GH', # enable _pexit hook function
 338             ]
 339         cflags += [
 340             '/W3', # warning level
 341             #'/Wp64', # enable 64 bit porting warnings
 342         ]
 343         if env['machine'] == 'x86':
 344             cflags += [
 345                 #'/QIfist', # Suppress _ftol
 346                 #'/arch:SSE2', # use the SSE2 instructions
 347             ]
 348         if platform == 'windows':
 349             cflags += [
 350                 # TODO
 351             ]
 352         if platform == 'winddk':
 353             cflags += [
 354                 '/Zl', # omit default library name in .OBJ
 355                 '/Zp8', # 8bytes struct member alignment
 356                 '/Gy', # separate functions for linker
 357                 '/Gm-', # disable minimal rebuild
 358                 '/WX', # treat warnings as errors
 359                 '/Gz', # __stdcall Calling convention
 360                 '/GX-', # disable C++ EH
 361                 '/GR-', # disable C++ RTTI
 362                 '/GF', # enable read-only string pooling
 363                 '/G6', # optimize for PPro, P-II, P-III
 364                 '/Ze', # enable extensions
 365                 '/Gi-', # disable incremental compilation
 366                 '/QIfdiv-', # disable Pentium FDIV fix
 367                 '/hotpatch', # prepares an image for hotpatching.
 368                 #'/Z7', #enable old-style debug info
 369             ]
 370         if platform == 'wince':
 371             # See also C:\WINCE600\public\common\oak\misc\makefile.def
 372             cflags += [
 373                 '/Zl', # omit default library name in .OBJ
 374                 '/GF', # enable read-only string pooling
 375                 '/GR-', # disable C++ RTTI
 376                 '/GS', # enable security checks
 377                 # Allow disabling language conformance to maintain backward compat
 378                 #'/Zc:wchar_t-', # don't force wchar_t as native type, instead of typedef
 379                 #'/Zc:forScope-', # don't enforce Standard C++ for scoping rules
 380                 #'/wd4867',
 381                 #'/wd4430',
 382                 #'/MT',
 383                 #'/U_MT',
 384             ]
 385         # Automatic pdb generation
 386         # See http://scons.tigris.org/issues/show_bug.cgi?id=1656
 387         env.EnsureSConsVersion(0, 98, 0)
 388         env['PDB'] = '${TARGET.base}.pdb'
 389     env.Append(CFLAGS = cflags)
 390     env.Append(CXXFLAGS = cflags)
 391
 392     # Assembler options
 393     if gcc:
 394         if env['machine'] == 'x86':
 395             env.Append(ASFLAGS = ['-m32'])
 396         if env['machine'] == 'x86_64':
 397             env.Append(ASFLAGS = ['-m64'])
 398
 399     # Linker options
 400     linkflags = []
 401     if gcc:
 402         if env['machine'] == 'x86':
 403             linkflags += ['-m32']
 404         if env['machine'] == 'x86_64':
 405             linkflags += ['-m64']
 406     if platform == 'winddk':
 407         # See also:
 408         # - http://msdn2.microsoft.com/en-us/library/y0zzbyt4.aspx
 409         linkflags += [
 410             '/merge:_PAGE=PAGE',
 411             '/merge:_TEXT=.text',
 412             '/section:INIT,d',
 413             '/opt:ref',
 414             '/opt:icf',
 415             '/ignore:4198,4010,4037,4039,4065,4070,4078,4087,4089,4221',
 416             '/incremental:no',
 417             '/fullbuild',
 418             '/release',
 419             '/nodefaultlib',
 420             '/wx',
 421             '/debug',
 422             '/debugtype:cv',
 423             '/version:5.1',
 424             '/osversion:5.1',
 425             '/functionpadmin:5',
 426             '/safeseh',
 427             '/pdbcompress',
 428             '/stack:0x40000,0x1000',
 429             '/driver',
 430             '/align:0x80',
 431             '/subsystem:native,5.01',
 432             '/base:0x10000',
 433
 434             '/entry:DrvEnableDriver',
 435         ]
 436         if env['profile']:
 437             linkflags += [
 438                 '/MAP', # http://msdn.microsoft.com/en-us/library/k7xkk3e2.aspx
 439             ]
 440     if platform == 'wince':
 441         linkflags += [
 442             '/nodefaultlib',
 443             #'/incremental:no',
 444             #'/fullbuild',
 445             '/entry:_DllMainCRTStartup',
 446         ]
 447     env.Append(LINKFLAGS = linkflags)
 448
 449     # Default libs
 450     env.Append(LIBS = [])
 451
 452     # Custom builders and methods
 453     createConvenienceLibBuilder(env)
 454     createCodeGenerateMethod(env)
 455     createInstallMethods(env)
 456
 457     # for debugging
 458     #print env.Dump()
 459
 460
 461 def exists(env):
 462     return 1