3 Frontend-tool for Gallium3D architecture.
8 # Copyright 2008 VMware, Inc.
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:
19 # The above copyright notice and this permission notice (including the
20 # next paragraph) shall be included in all copies or substantial portions
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 VMWARE 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.
33 import distutils.version
38 import platform as _platform
47 def symlink(target, source, env):
48 target = str(target[0])
49 source = str(source[0])
50 if os.path.islink(target) or os.path.exists(target):
52 os.symlink(os.path.basename(source), target)
54 def install(env, source, subdir):
55 target_dir = os.path.join(env.Dir('#.').srcnode().abspath, env['build_dir'], subdir)
56 return env.Install(target_dir, source)
58 def install_program(env, source):
59 return install(env, source, 'bin')
61 def install_shared_library(env, sources, version = ()):
63 install_dir = os.path.join(env.Dir('#.').srcnode().abspath, env['build_dir'])
64 version = tuple(map(str, version))
65 if env['SHLIBSUFFIX'] == '.dll':
66 dlls = env.FindIxes(sources, 'SHLIBPREFIX', 'SHLIBSUFFIX')
67 targets += install(env, dlls, 'bin')
68 libs = env.FindIxes(sources, 'LIBPREFIX', 'LIBSUFFIX')
69 targets += install(env, libs, 'lib')
71 for source in sources:
72 target_dir = os.path.join(install_dir, 'lib')
73 target_name = '.'.join((str(source),) + version)
74 last = env.InstallAs(os.path.join(target_dir, target_name), source)
77 version = version[:-1]
78 target_name = '.'.join((str(source),) + version)
79 action = SCons.Action.Action(symlink, " Symlinking $TARGET ...")
80 last = env.Command(os.path.join(target_dir, target_name), last, action)
85 def createInstallMethods(env):
86 env.AddMethod(install_program, 'InstallProgram')
87 env.AddMethod(install_shared_library, 'InstallSharedLibrary')
92 return int(os.environ['NUMBER_OF_PROCESSORS'])
93 except (ValueError, KeyError):
97 return os.sysconf('SC_NPROCESSORS_ONLN')
98 except (ValueError, OSError, AttributeError):
102 return int(os.popen2("sysctl -n hw.ncpu")[1].read())
109 def check_cc(env, cc, expr, cpp_opt = '-E'):
110 # Invoke C-preprocessor to determine whether the specified expression is
113 sys.stdout.write('Checking for %s ... ' % cc)
115 source = tempfile.NamedTemporaryFile(suffix='.c', delete=False)
116 source.write('#if !(%s)\n#error\n#endif\n' % expr)
119 pipe = SCons.Action._subproc(env, [env['CC'], cpp_opt, source.name],
123 result = pipe.wait() == 0
125 os.unlink(source.name)
127 sys.stdout.write(' %s\n' % ['no', 'yes'][int(bool(result))])
132 """Common environment generation code"""
134 # Tell tools which machine to compile for
135 env['TARGET_ARCH'] = env['machine']
136 env['MSVS_ARCH'] = env['machine']
139 platform = env['platform']
140 env.Tool(env['toolchain'])
142 # Allow override compiler and specify additional flags from environment
143 if os.environ.has_key('CC'):
144 env['CC'] = os.environ['CC']
145 # Update CCVERSION to match
146 pipe = SCons.Action._subproc(env, [env['CC'], '--version'],
149 stdout = subprocess.PIPE)
151 line = pipe.stdout.readline()
152 match = re.search(r'[0-9]+(\.[0-9]+)+', line)
154 env['CCVERSION'] = match.group(0)
155 if os.environ.has_key('CFLAGS'):
156 env['CCFLAGS'] += SCons.Util.CLVar(os.environ['CFLAGS'])
157 if os.environ.has_key('CXX'):
158 env['CXX'] = os.environ['CXX']
159 if os.environ.has_key('CXXFLAGS'):
160 env['CXXFLAGS'] += SCons.Util.CLVar(os.environ['CXXFLAGS'])
161 if os.environ.has_key('LDFLAGS'):
162 env['LINKFLAGS'] += SCons.Util.CLVar(os.environ['LDFLAGS'])
164 # Detect gcc/clang not by executable name, but through pre-defined macros
165 # as autoconf does, to avoid drawing wrong conclusions when using tools
166 # that overrice CC/CXX like scan-build.
170 if _platform.system() == 'Windows':
171 env['msvc'] = check_cc(env, 'MSVC', 'defined(_MSC_VER)', '/E')
173 env['gcc'] = check_cc(env, 'GCC', 'defined(__GNUC__) && !defined(__clang__)')
174 env['clang'] = check_cc(env, 'Clang', '__clang__')
175 env['suncc'] = env['platform'] == 'sunos' and os.path.basename(env['CC']) == 'cc'
176 env['icc'] = 'icc' == os.path.basename(env['CC'])
178 if env['msvc'] and env['toolchain'] == 'default' and env['machine'] == 'x86_64':
179 # MSVC x64 support is broken in earlier versions of scons
180 env.EnsurePythonVersion(2, 0)
183 machine = env['machine']
184 platform = env['platform']
185 x86 = env['machine'] == 'x86'
186 ppc = env['machine'] == 'ppc'
187 gcc_compat = env['gcc'] or env['clang']
192 # Determine whether we are cross compiling; in particular, whether we need
193 # to compile code generators with a different compiler as the target code.
194 host_platform = _platform.system().lower()
195 if host_platform.startswith('cygwin'):
196 host_platform = 'cygwin'
197 host_machine = os.environ.get('PROCESSOR_ARCHITEW6432', os.environ.get('PROCESSOR_ARCHITECTURE', _platform.machine()))
207 }.get(host_machine, 'generic')
208 env['crosscompile'] = platform != host_platform
209 if machine == 'x86_64' and host_machine != 'x86_64':
210 env['crosscompile'] = True
211 env['hostonly'] = False
213 # Backwards compatability with the debug= profile= options
214 if env['build'] == 'debug':
216 print 'scons: warning: debug option is deprecated and will be removed eventually; use instead'
218 print ' scons build=release'
220 env['build'] = 'release'
222 print 'scons: warning: profile option is deprecated and will be removed eventually; use instead'
224 print ' scons build=profile'
226 env['build'] = 'profile'
228 # Enforce SConscripts to use the new build variable
230 env.popitem('profile')
232 # Backwards portability with older sconscripts
233 if env['build'] in ('debug', 'checked'):
235 env['profile'] = False
236 if env['build'] == 'profile':
238 env['profile'] = True
239 if env['build'] == 'release':
241 env['profile'] = False
243 # Put build output in a separate dir, which depends on the current
244 # configuration. See also http://www.scons.org/wiki/AdvancedBuildExample
245 build_topdir = 'build'
246 build_subdir = env['platform']
248 build_subdir = 'embedded-' + build_subdir
249 if env['machine'] != 'generic':
250 build_subdir += '-' + env['machine']
251 if env['build'] != 'release':
252 build_subdir += '-' + env['build']
253 build_dir = os.path.join(build_topdir, build_subdir)
254 # Place the .sconsign file in the build dir too, to avoid issues with
255 # different scons versions building the same source file
256 env['build_dir'] = build_dir
257 env.SConsignFile(os.path.join(build_dir, '.sconsign'))
258 if 'SCONS_CACHE_DIR' in os.environ:
259 print 'scons: Using build cache in %s.' % (os.environ['SCONS_CACHE_DIR'],)
260 env.CacheDir(os.environ['SCONS_CACHE_DIR'])
261 env['CONFIGUREDIR'] = os.path.join(build_dir, 'conf')
262 env['CONFIGURELOG'] = os.path.join(os.path.abspath(build_dir), 'config.log')
265 if env.GetOption('num_jobs') <= 1:
266 env.SetOption('num_jobs', num_jobs())
268 env.Decider('MD5-timestamp')
269 env.SetOption('max_drift', 60)
271 # C preprocessor options
273 if env['build'] in ('debug', 'checked'):
274 cppdefines += ['DEBUG']
276 cppdefines += ['NDEBUG']
277 if env['build'] == 'profile':
278 cppdefines += ['PROFILE']
279 if env['platform'] in ('posix', 'linux', 'freebsd', 'darwin'):
282 ('_POSIX_C_SOURCE', '199309L'),
287 'HAVE_POSIX_MEMALIGN',
289 if env['platform'] == 'darwin':
293 'GLX_DIRECT_RENDERING',
297 'GLX_DIRECT_RENDERING',
298 'GLX_INDIRECT_RENDERING',
300 if env['platform'] in ('linux', 'freebsd'):
301 cppdefines += ['HAVE_ALIAS']
303 cppdefines += ['GLX_ALIAS_UNSUPPORTED']
305 if env['platform'] in ('linux', 'darwin'):
306 cppdefines += ['HAVE_XLOCALE_H']
308 if env['platform'] == 'haiku':
311 'HAVE_POSIX_MEMALIGN'
313 if platform == 'windows':
319 # http://msdn.microsoft.com/en-us/library/aa383745.aspx
320 ('_WIN32_WINNT', '0x0601'),
321 ('WINVER', '0x0601'),
324 cppdefines += [('__MSVCRT_VERSION__', '0x0700')]
329 '_CRT_SECURE_NO_WARNINGS',
330 '_CRT_SECURE_NO_DEPRECATE',
331 '_SCL_SECURE_NO_WARNINGS',
332 '_SCL_SECURE_NO_DEPRECATE',
333 '_ALLOW_KEYWORD_MACROS',
335 if env['build'] in ('debug', 'checked'):
336 cppdefines += ['_DEBUG']
337 if platform == 'windows':
338 cppdefines += ['PIPE_SUBSYSTEM_WINDOWS_USER']
340 cppdefines += ['PIPE_SUBSYSTEM_EMBEDDED']
341 if env['texture_float']:
342 print 'warning: Floating-point textures enabled.'
343 print 'warning: Please consult docs/patents.txt with your lawyer before building Mesa.'
344 cppdefines += ['TEXTURE_FLOAT_ENABLED']
345 env.Append(CPPDEFINES = cppdefines)
350 ccflags = [] # C & C++
352 ccversion = env['CCVERSION']
353 if env['build'] == 'debug':
355 elif env['gcc'] and ccversion.startswith('4.2.'):
356 # gcc 4.2.x optimizer is broken
357 print "warning: gcc 4.2.x optimizer is broken -- disabling optimizations"
362 # gcc's builtin memcmp is slower than glibc's
363 # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43052
364 ccflags += ['-fno-builtin-memcmp']
365 # Work around aliasing bugs - developers should comment this out
366 ccflags += ['-fno-strict-aliasing']
368 if env['build'] in ('checked', 'profile'):
369 # See http://code.google.com/p/jrfonseca/wiki/Gprof2Dot#Which_options_should_I_pass_to_gcc_when_compiling_for_profiling?
371 '-fno-omit-frame-pointer',
374 ccflags += ['-fno-optimize-sibling-calls']
375 if env['machine'] == 'x86':
380 if distutils.version.LooseVersion(ccversion) >= distutils.version.LooseVersion('4.2') \
381 and (platform != 'windows' or env['build'] == 'debug' or True) \
382 and platform != 'haiku':
383 # NOTE: We need to ensure stack is realigned given that we
384 # produce shared objects, and have no control over the stack
385 # alignment policy of the application. Therefore we need
386 # -mstackrealign ore -mincoming-stack-boundary=2.
388 # XXX: -O and -mstackrealign causes stack corruption on MinGW
390 # XXX: We could have SSE without -mstackrealign if we always used
391 # __attribute__((force_align_arg_pointer)), but that's not
394 '-mstackrealign', # ensure stack is aligned
395 '-mmmx', '-msse', '-msse2', # enable SIMD intrinsics
398 if platform in ['windows', 'darwin']:
399 # Workaround http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37216
400 ccflags += ['-fno-common']
401 if platform in ['haiku']:
402 # Make optimizations compatible with Pentium or higher on Haiku
404 '-mstackrealign', # ensure stack is aligned
405 '-march=i586', # Haiku target is Pentium
406 '-mtune=i686' # use i686 where we can
408 if env['machine'] == 'x86_64':
410 if platform == 'darwin':
411 ccflags += ['-fno-common']
412 if env['platform'] not in ('cygwin', 'haiku', 'windows'):
413 ccflags += ['-fvisibility=hidden']
415 # - http://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html
419 '-fmessage-length=0', # be nice to Eclipse
422 '-Wmissing-prototypes',
425 if distutils.version.LooseVersion(ccversion) >= distutils.version.LooseVersion('4.2'):
430 '-Wdeclaration-after-statement',
438 # - http://msdn.microsoft.com/en-us/library/19z1t1wy.aspx
440 if 'MSVC_VERSION' not in env or distutils.version.LooseVersion(env['MSVC_VERSION']) < distutils.version.LooseVersion('12.0'):
441 # Use bundled stdbool.h and stdint.h headers for older MSVC
442 # versions. stdint.h was introduced in MSVC 2010, but stdbool.h
443 # was only introduced in MSVC 2013.
444 top_dir = os.path.abspath(os.path.join(os.path.dirname(__file__), '..'))
445 env.Append(CPPPATH = [os.path.join(top_dir, 'include/c99')])
446 if env['build'] == 'debug':
448 '/Od', # disable optimizations
449 '/Oi', # enable intrinsic functions
452 if 'MSVC_VERSION' in env and distutils.version.LooseVersion(env['MSVC_VERSION']) < distutils.version.LooseVersion('11.0'):
453 print 'scons: warning: Visual Studio versions prior to 2012 are known to produce incorrect code when optimizations are enabled ( https://bugs.freedesktop.org/show_bug.cgi?id=58718 )'
455 '/O2', # optimize for speed
457 if env['build'] == 'release':
459 '/GL', # enable whole program optimization
463 '/Oy-', # disable frame pointer omission
464 '/GL-', # disable whole program optimization
467 '/W3', # warning level
468 '/wd4244', # conversion from 'type1' to 'type2', possible loss of data
469 '/wd4305', # truncation from 'type1' to 'type2'
470 '/wd4800', # forcing value to bool 'true' or 'false' (performance warning)
471 '/wd4996', # disable deprecated POSIX name warnings
473 if env['machine'] == 'x86':
475 #'/arch:SSE2', # use the SSE2 instructions
477 if platform == 'windows':
481 # Automatic pdb generation
482 # See http://scons.tigris.org/issues/show_bug.cgi?id=1656
483 env.EnsureSConsVersion(0, 98, 0)
484 env['PDB'] = '${TARGET.base}.pdb'
485 env.Append(CCFLAGS = ccflags)
486 env.Append(CFLAGS = cflags)
487 env.Append(CXXFLAGS = cxxflags)
489 if env['platform'] == 'windows' and msvc:
490 # Choose the appropriate MSVC CRT
491 # http://msdn.microsoft.com/en-us/library/2kzt1wy3.aspx
492 if env['build'] in ('debug', 'checked'):
493 env.Append(CCFLAGS = ['/MTd'])
494 env.Append(SHCCFLAGS = ['/LDd'])
496 env.Append(CCFLAGS = ['/MT'])
497 env.Append(SHCCFLAGS = ['/LD'])
499 # Static code analysis
502 # http://msdn.microsoft.com/en-us/library/ms173498.aspx
503 env.Append(CCFLAGS = [
505 #'/analyze:log', '${TARGET.base}.xml',
508 # scan-build will produce more comprehensive output
509 env.Append(CCFLAGS = ['--analyze'])
513 if env['machine'] == 'x86':
514 env.Append(ASFLAGS = ['-m32'])
515 if env['machine'] == 'x86_64':
516 env.Append(ASFLAGS = ['-m64'])
522 if env['machine'] == 'x86':
523 linkflags += ['-m32']
524 if env['machine'] == 'x86_64':
525 linkflags += ['-m64']
526 if env['platform'] not in ('darwin'):
530 # Handle circular dependencies in the libraries
531 if env['platform'] in ('darwin'):
534 env['_LIBFLAGS'] = '-Wl,--start-group ' + env['_LIBFLAGS'] + ' -Wl,--end-group'
535 if env['platform'] == 'windows':
537 '-Wl,--nxcompat', # DEP
538 '-Wl,--dynamicbase', # ASLR
540 # Avoid depending on gcc runtime DLLs
541 linkflags += ['-static-libgcc']
542 if 'w64' in env['CC'].split('-'):
543 linkflags += ['-static-libstdc++']
544 # Handle the @xx symbol munging of DLL exports
545 shlinkflags += ['-Wl,--enable-stdcall-fixup']
546 #shlinkflags += ['-Wl,--kill-at']
548 if env['build'] == 'release':
549 # enable Link-time Code Generation
550 linkflags += ['/LTCG']
551 env.Append(ARFLAGS = ['/LTCG'])
552 if platform == 'windows' and msvc:
554 # - http://msdn2.microsoft.com/en-us/library/y0zzbyt4.aspx
558 '/dynamicbase', # ASLR
561 env.Append(LINKFLAGS = linkflags)
562 env.Append(SHLINKFLAGS = shlinkflags)
564 # We have C++ in several libraries, so always link with the C++ compiler
566 env['LINK'] = env['CXX']
570 if env['platform'] in ('darwin', 'freebsd', 'linux', 'posix', 'sunos'):
571 libs += ['m', 'pthread', 'dl']
572 if env['platform'] in ('linux',):
574 if env['platform'] in ('haiku'):
575 libs += ['root', 'be', 'network', 'translation']
576 env.Append(LIBS = libs)
581 env.Append(CCFLAGS = ['/openmp'])
582 # When building openmp release VS2008 link.exe crashes with LNK1103 error.
583 # Workaround: overwrite PDB flags with empty value as it isn't required anyways
584 if env['build'] == 'release':
587 env.Append(CCFLAGS = ['-fopenmp'])
588 env.Append(LIBS = ['gomp'])
591 ccversion = env['CCVERSION']
593 'HAVE___BUILTIN_EXPECT',
594 'HAVE___BUILTIN_FFS',
595 'HAVE___BUILTIN_FFSLL',
596 'HAVE_FUNC_ATTRIBUTE_FLATTEN',
598 if distutils.version.LooseVersion(ccversion) >= distutils.version.LooseVersion('3'):
600 'HAVE_FUNC_ATTRIBUTE_FORMAT',
601 'HAVE_FUNC_ATTRIBUTE_PACKED',
603 if distutils.version.LooseVersion(ccversion) >= distutils.version.LooseVersion('3.4'):
605 'HAVE___BUILTIN_CTZ',
606 'HAVE___BUILTIN_POPCOUNT',
607 'HAVE___BUILTIN_POPCOUNTLL',
608 'HAVE___BUILTIN_CLZ',
609 'HAVE___BUILTIN_CLZLL',
611 if distutils.version.LooseVersion(ccversion) >= distutils.version.LooseVersion('4.5'):
612 cppdefines += ['HAVE___BUILTIN_UNREACHABLE']
620 # Custom builders and methods
622 createInstallMethods(env)
624 env.PkgCheckModules('X11', ['x11', 'xext', 'xdamage', 'xfixes'])
625 env.PkgCheckModules('XCB', ['x11-xcb', 'xcb-glx >= 1.8.1', 'xcb-dri2 >= 1.8'])
626 env.PkgCheckModules('XF86VIDMODE', ['xxf86vm'])
627 env.PkgCheckModules('DRM', ['libdrm >= 2.4.38'])
628 env.PkgCheckModules('UDEV', ['libudev >= 151'])
630 env['dri'] = env['x11'] and env['drm']