3 Frontend-tool for Gallium3D architecture.
8 # Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
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 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.
33 import distutils.version
38 import platform as _platform
45 def symlink(target, source, env):
46 target = str(target[0])
47 source = str(source[0])
48 if os.path.islink(target) or os.path.exists(target):
50 os.symlink(os.path.basename(source), target)
52 def install(env, source, subdir):
53 target_dir = os.path.join(env.Dir('#.').srcnode().abspath, env['build_dir'], subdir)
54 return env.Install(target_dir, source)
56 def install_program(env, source):
57 return install(env, source, 'bin')
59 def install_shared_library(env, sources, version = ()):
61 install_dir = os.path.join(env.Dir('#.').srcnode().abspath, env['build_dir'])
62 version = tuple(map(str, version))
63 if env['SHLIBSUFFIX'] == '.dll':
64 dlls = env.FindIxes(sources, 'SHLIBPREFIX', 'SHLIBSUFFIX')
65 targets += install(env, dlls, 'bin')
66 libs = env.FindIxes(sources, 'LIBPREFIX', 'LIBSUFFIX')
67 targets += install(env, libs, 'lib')
69 for source in sources:
70 target_dir = os.path.join(install_dir, 'lib')
71 target_name = '.'.join((str(source),) + version)
72 last = env.InstallAs(os.path.join(target_dir, target_name), source)
75 version = version[:-1]
76 target_name = '.'.join((str(source),) + version)
77 action = SCons.Action.Action(symlink, " Symlinking $TARGET ...")
78 last = env.Command(os.path.join(target_dir, target_name), last, action)
83 def createInstallMethods(env):
84 env.AddMethod(install_program, 'InstallProgram')
85 env.AddMethod(install_shared_library, 'InstallSharedLibrary')
90 return int(os.environ['NUMBER_OF_PROCESSORS'])
91 except (ValueError, KeyError):
95 return os.sysconf('SC_NPROCESSORS_ONLN')
96 except (ValueError, OSError, AttributeError):
100 return int(os.popen2("sysctl -n hw.ncpu")[1].read())
108 """Common environment generation code"""
110 # Tell tools which machine to compile for
111 env['TARGET_ARCH'] = env['machine']
112 env['MSVS_ARCH'] = env['machine']
115 platform = env['platform']
116 env.Tool(env['toolchain'])
118 # Allow override compiler and specify additional flags from environment
119 if os.environ.has_key('CC'):
120 env['CC'] = os.environ['CC']
121 # Update CCVERSION to match
122 pipe = SCons.Action._subproc(env, [env['CC'], '--version'],
125 stdout = subprocess.PIPE)
127 line = pipe.stdout.readline()
128 match = re.search(r'[0-9]+(\.[0-9]+)+', line)
130 env['CCVERSION'] = match.group(0)
131 if os.environ.has_key('CFLAGS'):
132 env['CCFLAGS'] += SCons.Util.CLVar(os.environ['CFLAGS'])
133 if os.environ.has_key('CXX'):
134 env['CXX'] = os.environ['CXX']
135 if os.environ.has_key('CXXFLAGS'):
136 env['CXXFLAGS'] += SCons.Util.CLVar(os.environ['CXXFLAGS'])
137 if os.environ.has_key('LDFLAGS'):
138 env['LINKFLAGS'] += SCons.Util.CLVar(os.environ['LDFLAGS'])
140 env['gcc'] = 'gcc' in os.path.basename(env['CC']).split('-')
141 env['msvc'] = env['CC'] == 'cl'
143 if env['msvc'] and env['toolchain'] == 'default' and env['machine'] == 'x86_64':
144 # MSVC x64 support is broken in earlier versions of scons
145 env.EnsurePythonVersion(2, 0)
148 machine = env['machine']
149 platform = env['platform']
150 x86 = env['machine'] == 'x86'
151 ppc = env['machine'] == 'ppc'
155 # Determine whether we are cross compiling; in particular, whether we need
156 # to compile code generators with a different compiler as the target code.
157 host_platform = _platform.system().lower()
158 if host_platform.startswith('cygwin'):
159 host_platform = 'cygwin'
160 host_machine = os.environ.get('PROCESSOR_ARCHITEW6432', os.environ.get('PROCESSOR_ARCHITECTURE', _platform.machine()))
170 }.get(host_machine, 'generic')
171 env['crosscompile'] = platform != host_platform
172 if machine == 'x86_64' and host_machine != 'x86_64':
173 env['crosscompile'] = True
174 env['hostonly'] = False
176 # Backwards compatability with the debug= profile= options
177 if env['build'] == 'debug':
179 print 'scons: warning: debug option is deprecated and will be removed eventually; use instead'
181 print ' scons build=release'
183 env['build'] = 'release'
185 print 'scons: warning: profile option is deprecated and will be removed eventually; use instead'
187 print ' scons build=profile'
189 env['build'] = 'profile'
191 # Enforce SConscripts to use the new build variable
193 env.popitem('profile')
195 # Backwards portability with older sconscripts
196 if env['build'] in ('debug', 'checked'):
198 env['profile'] = False
199 if env['build'] == 'profile':
201 env['profile'] = True
202 if env['build'] == 'release':
204 env['profile'] = False
206 # Put build output in a separate dir, which depends on the current
207 # configuration. See also http://www.scons.org/wiki/AdvancedBuildExample
208 build_topdir = 'build'
209 build_subdir = env['platform']
211 build_subdir = 'embedded-' + build_subdir
212 if env['machine'] != 'generic':
213 build_subdir += '-' + env['machine']
214 if env['build'] != 'release':
215 build_subdir += '-' + env['build']
216 build_dir = os.path.join(build_topdir, build_subdir)
217 # Place the .sconsign file in the build dir too, to avoid issues with
218 # different scons versions building the same source file
219 env['build_dir'] = build_dir
220 env.SConsignFile(os.path.join(build_dir, '.sconsign'))
221 if 'SCONS_CACHE_DIR' in os.environ:
222 print 'scons: Using build cache in %s.' % (os.environ['SCONS_CACHE_DIR'],)
223 env.CacheDir(os.environ['SCONS_CACHE_DIR'])
224 env['CONFIGUREDIR'] = os.path.join(build_dir, 'conf')
225 env['CONFIGURELOG'] = os.path.join(os.path.abspath(build_dir), 'config.log')
228 if env.GetOption('num_jobs') <= 1:
229 env.SetOption('num_jobs', num_jobs())
231 env.Decider('MD5-timestamp')
232 env.SetOption('max_drift', 60)
234 # C preprocessor options
236 if env['build'] in ('debug', 'checked'):
237 cppdefines += ['DEBUG']
239 cppdefines += ['NDEBUG']
240 if env['build'] == 'profile':
241 cppdefines += ['PROFILE']
242 if env['platform'] in ('posix', 'linux', 'freebsd', 'darwin'):
245 ('_POSIX_C_SOURCE', '199309L'),
250 'HAVE_POSIX_MEMALIGN',
252 if env['platform'] == 'darwin':
256 'GLX_DIRECT_RENDERING',
260 'GLX_DIRECT_RENDERING',
261 'GLX_INDIRECT_RENDERING',
263 if env['platform'] in ('linux', 'freebsd'):
264 cppdefines += ['HAVE_ALIAS']
266 cppdefines += ['GLX_ALIAS_UNSUPPORTED']
267 if platform == 'windows':
273 # http://msdn.microsoft.com/en-us/library/aa383745.aspx
274 ('_WIN32_WINNT', '0x0601'),
275 ('WINVER', '0x0601'),
278 cppdefines += [('__MSVCRT_VERSION__', '0x0700')]
283 '_CRT_SECURE_NO_WARNINGS',
284 '_CRT_SECURE_NO_DEPRECATE',
285 '_SCL_SECURE_NO_WARNINGS',
286 '_SCL_SECURE_NO_DEPRECATE',
288 if env['build'] in ('debug', 'checked'):
289 cppdefines += ['_DEBUG']
290 if platform == 'windows':
291 cppdefines += ['PIPE_SUBSYSTEM_WINDOWS_USER']
292 if platform == 'haiku':
293 cppdefines += ['BEOS_THREADS']
295 cppdefines += ['PIPE_SUBSYSTEM_EMBEDDED']
296 env.Append(CPPDEFINES = cppdefines)
301 ccflags = [] # C & C++
303 ccversion = env['CCVERSION']
304 if env['build'] == 'debug':
306 elif ccversion.startswith('4.2.'):
307 # gcc 4.2.x optimizer is broken
308 print "warning: gcc 4.2.x optimizer is broken -- disabling optimizations"
312 # gcc's builtin memcmp is slower than glibc's
313 # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43052
314 ccflags += ['-fno-builtin-memcmp']
315 # Work around aliasing bugs - developers should comment this out
316 ccflags += ['-fno-strict-aliasing']
318 if env['build'] in ('checked', 'profile'):
319 # See http://code.google.com/p/jrfonseca/wiki/Gprof2Dot#Which_options_should_I_pass_to_gcc_when_compiling_for_profiling?
321 '-fno-omit-frame-pointer',
322 '-fno-optimize-sibling-calls',
324 if env['machine'] == 'x86':
329 if distutils.version.LooseVersion(ccversion) >= distutils.version.LooseVersion('4.2') \
330 and (platform != 'windows' or env['build'] == 'debug' or True):
331 # NOTE: We need to ensure stack is realigned given that we
332 # produce shared objects, and have no control over the stack
333 # alignment policy of the application. Therefore we need
334 # -mstackrealign ore -mincoming-stack-boundary=2.
336 # XXX: -O and -mstackrealign causes stack corruption on MinGW
338 # XXX: We could have SSE without -mstackrealign if we always used
339 # __attribute__((force_align_arg_pointer)), but that's not
342 '-mstackrealign', # ensure stack is aligned
343 '-mmmx', '-msse', '-msse2', # enable SIMD intrinsics
346 if platform in ['windows', 'darwin']:
347 # Workaround http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37216
348 ccflags += ['-fno-common']
349 if env['machine'] == 'x86_64':
351 if platform == 'darwin':
352 ccflags += ['-fno-common']
353 if env['platform'] != 'windows':
354 ccflags += ['-fvisibility=hidden']
356 # - http://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html
361 '-fmessage-length=0', # be nice to Eclipse
364 '-Wmissing-prototypes',
367 if distutils.version.LooseVersion(ccversion) >= distutils.version.LooseVersion('4.0'):
369 '-Wmissing-field-initializers',
371 if distutils.version.LooseVersion(ccversion) >= distutils.version.LooseVersion('4.2'):
376 '-Wdeclaration-after-statement',
380 # - http://msdn.microsoft.com/en-us/library/19z1t1wy.aspx
382 if env['build'] == 'debug':
384 '/Od', # disable optimizations
385 '/Oi', # enable intrinsic functions
386 '/Oy-', # disable frame pointer omission
390 '/O2', # optimize for speed
392 if env['build'] == 'release':
394 '/GL', # enable whole program optimization
398 '/GL-', # disable whole program optimization
401 '/fp:fast', # fast floating point
402 '/W3', # warning level
403 #'/Wp64', # enable 64 bit porting warnings
404 '/wd4996', # disable deprecated POSIX name warnings
406 if env['machine'] == 'x86':
408 #'/arch:SSE2', # use the SSE2 instructions
410 if platform == 'windows':
414 # Automatic pdb generation
415 # See http://scons.tigris.org/issues/show_bug.cgi?id=1656
416 env.EnsureSConsVersion(0, 98, 0)
417 env['PDB'] = '${TARGET.base}.pdb'
418 env.Append(CCFLAGS = ccflags)
419 env.Append(CFLAGS = cflags)
420 env.Append(CXXFLAGS = cxxflags)
422 if env['platform'] == 'windows' and msvc:
423 # Choose the appropriate MSVC CRT
424 # http://msdn.microsoft.com/en-us/library/2kzt1wy3.aspx
425 if env['build'] in ('debug', 'checked'):
426 env.Append(CCFLAGS = ['/MTd'])
427 env.Append(SHCCFLAGS = ['/LDd'])
429 env.Append(CCFLAGS = ['/MT'])
430 env.Append(SHCCFLAGS = ['/LD'])
434 if env['machine'] == 'x86':
435 env.Append(ASFLAGS = ['-m32'])
436 if env['machine'] == 'x86_64':
437 env.Append(ASFLAGS = ['-m64'])
443 if env['machine'] == 'x86':
444 linkflags += ['-m32']
445 if env['machine'] == 'x86_64':
446 linkflags += ['-m64']
447 if env['platform'] not in ('darwin'):
451 # Handle circular dependencies in the libraries
452 if env['platform'] in ('darwin'):
455 env['_LIBFLAGS'] = '-Wl,--start-group ' + env['_LIBFLAGS'] + ' -Wl,--end-group'
456 if env['platform'] == 'windows':
457 # Avoid depending on gcc runtime DLLs
458 linkflags += ['-static-libgcc']
459 if 'w64' in env['CC'].split('-'):
460 linkflags += ['-static-libstdc++']
461 # Handle the @xx symbol munging of DLL exports
462 shlinkflags += ['-Wl,--enable-stdcall-fixup']
463 #shlinkflags += ['-Wl,--kill-at']
465 if env['build'] == 'release':
466 # enable Link-time Code Generation
467 linkflags += ['/LTCG']
468 env.Append(ARFLAGS = ['/LTCG'])
469 if platform == 'windows' and msvc:
471 # - http://msdn2.microsoft.com/en-us/library/y0zzbyt4.aspx
476 env.Append(LINKFLAGS = linkflags)
477 env.Append(SHLINKFLAGS = shlinkflags)
479 # We have C++ in several libraries, so always link with the C++ compiler
481 env['LINK'] = env['CXX']
485 if env['platform'] in ('posix', 'linux', 'freebsd', 'darwin'):
486 libs += ['m', 'pthread', 'dl']
487 env.Append(LIBS = libs)
492 env.Append(CCFLAGS = ['/openmp'])
493 # When building openmp release VS2008 link.exe crashes with LNK1103 error.
494 # Workaround: overwrite PDB flags with empty value as it isn't required anyways
495 if env['build'] == 'release':
498 env.Append(CCFLAGS = ['-fopenmp'])
499 env.Append(LIBS = ['gomp'])
507 # Custom builders and methods
509 createInstallMethods(env)
511 env.PkgCheckModules('X11', ['x11', 'xext', 'xdamage', 'xfixes'])
512 env.PkgCheckModules('XCB', ['x11-xcb', 'xcb-glx'])
513 env.PkgCheckModules('XF86VIDMODE', ['xxf86vm'])
514 env.PkgCheckModules('DRM', ['libdrm'])
515 env.PkgCheckModules('DRM_INTEL', ['libdrm_intel'])
516 env.PkgCheckModules('DRM_RADEON', ['libdrm_radeon'])
517 env.PkgCheckModules('XORG', ['xorg-server'])
518 env.PkgCheckModules('KMS', ['libkms'])
519 env.PkgCheckModules('UDEV', ['libudev'])
521 env['dri'] = env['x11'] and env['drm']