"""gallium Frontend-tool for Gallium3D architecture. """ # # Copyright 2008 VMware, Inc. # All Rights Reserved. # # Permission is hereby granted, free of charge, to any person obtaining a # copy of this software and associated documentation files (the # "Software"), to deal in the Software without restriction, including # without limitation the rights to use, copy, modify, merge, publish, # distribute, sub license, and/or sell copies of the Software, and to # permit persons to whom the Software is furnished to do so, subject to # the following conditions: # # The above copyright notice and this permission notice (including the # next paragraph) shall be included in all copies or substantial portions # of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS # OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. # IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR # ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, # TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE # SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. # import distutils.version import os import os.path import re import subprocess import platform as host_platform import sys import tempfile import SCons.Action import SCons.Builder import SCons.Scanner def symlink(target, source, env): target = str(target[0]) source = str(source[0]) if os.path.islink(target) or os.path.exists(target): os.remove(target) os.symlink(os.path.basename(source), target) def install(env, source, subdir): target_dir = os.path.join(env.Dir('#.').srcnode().abspath, env['build_dir'], subdir) return env.Install(target_dir, source) def install_program(env, source): return install(env, source, 'bin') def install_shared_library(env, sources, version = ()): targets = [] install_dir = os.path.join(env.Dir('#.').srcnode().abspath, env['build_dir']) version = tuple(map(str, version)) if env['SHLIBSUFFIX'] == '.dll': dlls = env.FindIxes(sources, 'SHLIBPREFIX', 'SHLIBSUFFIX') targets += install(env, dlls, 'bin') libs = env.FindIxes(sources, 'LIBPREFIX', 'LIBSUFFIX') targets += install(env, libs, 'lib') else: for source in sources: target_dir = os.path.join(install_dir, 'lib') target_name = '.'.join((str(source),) + version) last = env.InstallAs(os.path.join(target_dir, target_name), source) targets += last while len(version): version = version[:-1] target_name = '.'.join((str(source),) + version) action = SCons.Action.Action(symlink, " Symlinking $TARGET ...") last = env.Command(os.path.join(target_dir, target_name), last, action) targets += last return targets def msvc2013_compat(env): if env['gcc']: env.Append(CCFLAGS = [ '-Werror=vla', '-Werror=pointer-arith', ]) def unit_test(env, test_name, program_target, args=None): env.InstallProgram(program_target) cmd = [program_target[0].abspath] if args is not None: cmd += args cmd = ' '.join(cmd) # http://www.scons.org/wiki/UnitTests action = SCons.Action.Action(cmd, " Running $SOURCE ...") alias = env.Alias(test_name, program_target, action) env.AlwaysBuild(alias) env.Depends('check', alias) def num_jobs(): try: return int(os.environ['NUMBER_OF_PROCESSORS']) except (ValueError, KeyError): pass try: return os.sysconf('SC_NPROCESSORS_ONLN') except (ValueError, OSError, AttributeError): pass try: return int(os.popen2("sysctl -n hw.ncpu")[1].read()) except ValueError: pass return 1 def check_cc(env, cc, expr, cpp_opt = '-E'): # Invoke C-preprocessor to determine whether the specified expression is # true or not. sys.stdout.write('Checking for %s ... ' % cc) source = tempfile.NamedTemporaryFile(suffix='.c', delete=False) source.write('#if !(%s)\n#error\n#endif\n' % expr) source.close() pipe = SCons.Action._subproc(env, [env['CC'], cpp_opt, source.name], stdin = 'devnull', stderr = 'devnull', stdout = 'devnull') result = pipe.wait() == 0 os.unlink(source.name) sys.stdout.write(' %s\n' % ['no', 'yes'][int(bool(result))]) return result def check_prog(env, prog): """Check whether this program exists.""" sys.stdout.write('Checking for %s ... ' % prog) result = env.Detect(prog) sys.stdout.write(' %s\n' % ['no', 'yes'][int(bool(result))]) return result def generate(env): """Common environment generation code""" # Tell tools which machine to compile for env['TARGET_ARCH'] = env['machine'] env['MSVS_ARCH'] = env['machine'] # Toolchain platform = env['platform'] env.Tool(env['toolchain']) # Allow override compiler and specify additional flags from environment if os.environ.has_key('CC'): env['CC'] = os.environ['CC'] if os.environ.has_key('CFLAGS'): env['CCFLAGS'] += SCons.Util.CLVar(os.environ['CFLAGS']) if os.environ.has_key('CXX'): env['CXX'] = os.environ['CXX'] if os.environ.has_key('CXXFLAGS'): env['CXXFLAGS'] += SCons.Util.CLVar(os.environ['CXXFLAGS']) if os.environ.has_key('LDFLAGS'): env['LINKFLAGS'] += SCons.Util.CLVar(os.environ['LDFLAGS']) # Detect gcc/clang not by executable name, but through pre-defined macros # as autoconf does, to avoid drawing wrong conclusions when using tools # that overrice CC/CXX like scan-build. env['gcc_compat'] = 0 env['clang'] = 0 env['msvc'] = 0 if host_platform.system() == 'Windows': env['msvc'] = check_cc(env, 'MSVC', 'defined(_MSC_VER)', '/E') if not env['msvc']: env['gcc_compat'] = check_cc(env, 'GCC', 'defined(__GNUC__)') env['clang'] = check_cc(env, 'Clang', '__clang__') env['gcc'] = env['gcc_compat'] and not env['clang'] env['suncc'] = env['platform'] == 'sunos' and os.path.basename(env['CC']) == 'cc' env['icc'] = 'icc' == os.path.basename(env['CC']) if env['msvc'] and env['toolchain'] == 'default' and env['machine'] == 'x86_64': # MSVC x64 support is broken in earlier versions of scons env.EnsurePythonVersion(2, 0) # shortcuts machine = env['machine'] platform = env['platform'] x86 = env['machine'] == 'x86' ppc = env['machine'] == 'ppc' gcc_compat = env['gcc_compat'] msvc = env['msvc'] suncc = env['suncc'] icc = env['icc'] # Determine whether we are cross compiling; in particular, whether we need # to compile code generators with a different compiler as the target code. hosthost_platform = host_platform.system().lower() if hosthost_platform.startswith('cygwin'): hosthost_platform = 'cygwin' host_machine = os.environ.get('PROCESSOR_ARCHITEW6432', os.environ.get('PROCESSOR_ARCHITECTURE', host_platform.machine())) host_machine = { 'x86': 'x86', 'i386': 'x86', 'i486': 'x86', 'i586': 'x86', 'i686': 'x86', 'ppc' : 'ppc', 'AMD64': 'x86_64', 'x86_64': 'x86_64', }.get(host_machine, 'generic') env['crosscompile'] = platform != hosthost_platform if machine == 'x86_64' and host_machine != 'x86_64': env['crosscompile'] = True env['hostonly'] = False # Backwards compatability with the debug= profile= options if env['build'] == 'debug': if not env['debug']: print 'scons: warning: debug option is deprecated and will be removed eventually; use instead' print print ' scons build=release' print env['build'] = 'release' if env['profile']: print 'scons: warning: profile option is deprecated and will be removed eventually; use instead' print print ' scons build=profile' print env['build'] = 'profile' if False: # Enforce SConscripts to use the new build variable env.popitem('debug') env.popitem('profile') else: # Backwards portability with older sconscripts if env['build'] in ('debug', 'checked'): env['debug'] = True env['profile'] = False if env['build'] == 'profile': env['debug'] = False env['profile'] = True if env['build'] == 'release': env['debug'] = False env['profile'] = False # Put build output in a separate dir, which depends on the current # configuration. See also http://www.scons.org/wiki/AdvancedBuildExample build_topdir = 'build' build_subdir = env['platform'] if env['embedded']: build_subdir = 'embedded-' + build_subdir if env['machine'] != 'generic': build_subdir += '-' + env['machine'] if env['build'] != 'release': build_subdir += '-' + env['build'] build_dir = os.path.join(build_topdir, build_subdir) # Place the .sconsign file in the build dir too, to avoid issues with # different scons versions building the same source file env['build_dir'] = build_dir env.SConsignFile(os.path.join(build_dir, '.sconsign')) if 'SCONS_CACHE_DIR' in os.environ: print 'scons: Using build cache in %s.' % (os.environ['SCONS_CACHE_DIR'],) env.CacheDir(os.environ['SCONS_CACHE_DIR']) env['CONFIGUREDIR'] = os.path.join(build_dir, 'conf') env['CONFIGURELOG'] = os.path.join(os.path.abspath(build_dir), 'config.log') # Parallel build if env.GetOption('num_jobs') <= 1: env.SetOption('num_jobs', num_jobs()) env.Decider('MD5-timestamp') env.SetOption('max_drift', 60) # C preprocessor options cppdefines = [] cppdefines += [ '__STDC_LIMIT_MACROS', '__STDC_CONSTANT_MACROS', 'HAVE_NO_AUTOCONF', ] if env['build'] in ('debug', 'checked'): cppdefines += ['DEBUG'] else: cppdefines += ['NDEBUG'] if env['build'] == 'profile': cppdefines += ['PROFILE'] if env['platform'] in ('posix', 'linux', 'freebsd', 'darwin'): cppdefines += [ '_POSIX_SOURCE', ('_POSIX_C_SOURCE', '199309L'), '_SVID_SOURCE', '_BSD_SOURCE', '_GNU_SOURCE', '_DEFAULT_SOURCE', ] if env['platform'] == 'darwin': cppdefines += [ '_DARWIN_C_SOURCE', 'GLX_USE_APPLEGL', 'GLX_DIRECT_RENDERING', ] else: cppdefines += [ 'GLX_DIRECT_RENDERING', 'GLX_INDIRECT_RENDERING', ] if env['platform'] in ('linux', 'freebsd'): cppdefines += ['HAVE_ALIAS'] else: cppdefines += ['GLX_ALIAS_UNSUPPORTED'] if env['platform'] in ('linux', 'darwin'): cppdefines += ['HAVE_XLOCALE_H'] if platform == 'windows': cppdefines += [ 'WIN32', '_WINDOWS', #'_UNICODE', #'UNICODE', # http://msdn.microsoft.com/en-us/library/aa383745.aspx ('_WIN32_WINNT', '0x0601'), ('WINVER', '0x0601'), ] if gcc_compat: cppdefines += [('__MSVCRT_VERSION__', '0x0700')] if msvc: cppdefines += [ 'VC_EXTRALEAN', '_USE_MATH_DEFINES', '_CRT_SECURE_NO_WARNINGS', '_CRT_SECURE_NO_DEPRECATE', '_SCL_SECURE_NO_WARNINGS', '_SCL_SECURE_NO_DEPRECATE', '_ALLOW_KEYWORD_MACROS', '_HAS_EXCEPTIONS=0', # Tell C++ STL to not use exceptions ] if env['build'] in ('debug', 'checked'): cppdefines += ['_DEBUG'] if platform == 'windows': cppdefines += ['PIPE_SUBSYSTEM_WINDOWS_USER'] if env['embedded']: cppdefines += ['PIPE_SUBSYSTEM_EMBEDDED'] if env['texture_float']: print 'warning: Floating-point textures enabled.' print 'warning: Please consult docs/patents.txt with your lawyer before building Mesa.' cppdefines += ['TEXTURE_FLOAT_ENABLED'] env.Append(CPPDEFINES = cppdefines) # C compiler options cflags = [] # C cxxflags = [] # C++ ccflags = [] # C & C++ if gcc_compat: if env['build'] == 'debug': ccflags += ['-O0'] else: ccflags += ['-O3'] if env['gcc']: # gcc's builtin memcmp is slower than glibc's # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43052 ccflags += ['-fno-builtin-memcmp'] # Work around aliasing bugs - developers should comment this out ccflags += ['-fno-strict-aliasing'] ccflags += ['-g'] if env['build'] in ('checked', 'profile') or env['asan']: # See http://code.google.com/p/jrfonseca/wiki/Gprof2Dot#Which_options_should_I_pass_to_gcc_when_compiling_for_profiling? ccflags += [ '-fno-omit-frame-pointer', ] if env['gcc']: ccflags += ['-fno-optimize-sibling-calls'] if env['machine'] == 'x86': ccflags += [ '-m32', #'-march=pentium4', ] if platform != 'haiku': # NOTE: We need to ensure stack is realigned given that we # produce shared objects, and have no control over the stack # alignment policy of the application. Therefore we need # -mstackrealign ore -mincoming-stack-boundary=2. # # XXX: We could have SSE without -mstackrealign if we always used # __attribute__((force_align_arg_pointer)), but that's not # always the case. ccflags += [ '-mstackrealign', # ensure stack is aligned '-msse', '-msse2', # enable SIMD intrinsics '-mfpmath=sse', # generate SSE floating-point arithmetic ] if platform in ['windows', 'darwin']: # Workaround http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37216 ccflags += ['-fno-common'] if platform in ['haiku']: # Make optimizations compatible with Pentium or higher on Haiku ccflags += [ '-mstackrealign', # ensure stack is aligned '-march=i586', # Haiku target is Pentium '-mtune=i686' # use i686 where we can ] if env['machine'] == 'x86_64': ccflags += ['-m64'] if platform == 'darwin': ccflags += ['-fno-common'] if env['platform'] not in ('cygwin', 'haiku', 'windows'): ccflags += ['-fvisibility=hidden'] # See also: # - http://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html ccflags += [ '-Wall', '-Wno-long-long', '-fmessage-length=0', # be nice to Eclipse ] cflags += [ '-Wmissing-prototypes', '-std=gnu99', ] if icc: cflags += [ '-std=gnu99', ] if msvc: # See also: # - http://msdn.microsoft.com/en-us/library/19z1t1wy.aspx # - cl /? if env['build'] == 'debug': ccflags += [ '/Od', # disable optimizations '/Oi', # enable intrinsic functions ] else: ccflags += [ '/O2', # optimize for speed ] if env['build'] == 'release': if not env['clang']: ccflags += [ '/GL', # enable whole program optimization ] else: ccflags += [ '/Oy-', # disable frame pointer omission ] ccflags += [ '/W3', # warning level '/wd4018', # signed/unsigned mismatch '/wd4056', # overflow in floating-point constant arithmetic '/wd4244', # conversion from 'type1' to 'type2', possible loss of data '/wd4267', # 'var' : conversion from 'size_t' to 'type', possible loss of data '/wd4305', # truncation from 'type1' to 'type2' '/wd4351', # new behavior: elements of array 'array' will be default initialized '/wd4756', # overflow in constant arithmetic '/wd4800', # forcing value to bool 'true' or 'false' (performance warning) '/wd4996', # disable deprecated POSIX name warnings ] if env['clang']: ccflags += [ '-Wno-microsoft-enum-value', # enumerator value is not representable in underlying type 'int' ] if env['machine'] == 'x86': ccflags += [ '/arch:SSE2', # use the SSE2 instructions (default since MSVC 2012) ] if platform == 'windows': ccflags += [ # TODO ] # Automatic pdb generation # See http://scons.tigris.org/issues/show_bug.cgi?id=1656 env.EnsureSConsVersion(0, 98, 0) env['PDB'] = '${TARGET.base}.pdb' env.Append(CCFLAGS = ccflags) env.Append(CFLAGS = cflags) env.Append(CXXFLAGS = cxxflags) if env['platform'] == 'windows' and msvc: # Choose the appropriate MSVC CRT # http://msdn.microsoft.com/en-us/library/2kzt1wy3.aspx if env['build'] in ('debug', 'checked'): env.Append(CCFLAGS = ['/MTd']) env.Append(SHCCFLAGS = ['/LDd']) else: env.Append(CCFLAGS = ['/MT']) env.Append(SHCCFLAGS = ['/LD']) # Static code analysis if env['analyze']: if env['msvc']: # http://msdn.microsoft.com/en-us/library/ms173498.aspx env.Append(CCFLAGS = [ '/analyze', #'/analyze:log', '${TARGET.base}.xml', '/wd28251', # Inconsistent annotation for function ]) if env['clang']: # scan-build will produce more comprehensive output env.Append(CCFLAGS = ['--analyze']) # https://github.com/google/sanitizers/wiki/AddressSanitizer if env['asan']: if gcc_compat: env.Append(CCFLAGS = [ '-fsanitize=address', ]) env.Append(LINKFLAGS = [ '-fsanitize=address', ]) # Assembler options if gcc_compat: if env['machine'] == 'x86': env.Append(ASFLAGS = ['-m32']) if env['machine'] == 'x86_64': env.Append(ASFLAGS = ['-m64']) # Linker options linkflags = [] shlinkflags = [] if gcc_compat: if env['machine'] == 'x86': linkflags += ['-m32'] if env['machine'] == 'x86_64': linkflags += ['-m64'] if env['platform'] not in ('darwin'): shlinkflags += [ '-Wl,-Bsymbolic', ] # Handle circular dependencies in the libraries if env['platform'] in ('darwin'): pass else: env['_LIBFLAGS'] = '-Wl,--start-group ' + env['_LIBFLAGS'] + ' -Wl,--end-group' if env['platform'] == 'windows': linkflags += [ '-Wl,--nxcompat', # DEP '-Wl,--dynamicbase', # ASLR ] # Avoid depending on gcc runtime DLLs linkflags += ['-static-libgcc'] if 'w64' in env['CC'].split('-'): linkflags += ['-static-libstdc++'] # Handle the @xx symbol munging of DLL exports shlinkflags += ['-Wl,--enable-stdcall-fixup'] #shlinkflags += ['-Wl,--kill-at'] if msvc: if env['build'] == 'release' and not env['clang']: # enable Link-time Code Generation linkflags += ['/LTCG'] env.Append(ARFLAGS = ['/LTCG']) if platform == 'windows' and msvc: # See also: # - http://msdn2.microsoft.com/en-us/library/y0zzbyt4.aspx linkflags += [ '/fixed:no', '/incremental:no', '/dynamicbase', # ASLR '/nxcompat', # DEP ] env.Append(LINKFLAGS = linkflags) env.Append(SHLINKFLAGS = shlinkflags) # We have C++ in several libraries, so always link with the C++ compiler if gcc_compat: env['LINK'] = env['CXX'] # Default libs libs = [] if env['platform'] in ('darwin', 'freebsd', 'linux', 'posix', 'sunos'): libs += ['m', 'pthread', 'dl'] if env['platform'] in ('linux',): libs += ['rt'] if env['platform'] in ('haiku'): libs += ['root', 'be', 'network', 'translation'] env.Append(LIBS = libs) # OpenMP if env['openmp']: if env['msvc']: env.Append(CCFLAGS = ['/openmp']) # When building openmp release VS2008 link.exe crashes with LNK1103 error. # Workaround: overwrite PDB flags with empty value as it isn't required anyways if env['build'] == 'release': env['PDB'] = '' if env['gcc']: env.Append(CCFLAGS = ['-fopenmp']) env.Append(LIBS = ['gomp']) # Load tools env.Tool('lex') if env['msvc']: env.Append(LEXFLAGS = [ # Force flex to use const keyword in prototypes, as relies on # __cplusplus or __STDC__ macro to determine whether it's safe to # use const keyword, but MSVC never defines __STDC__ unless we # disable all MSVC extensions. '-DYY_USE_CONST=', ]) # Flex relies on __STDC_VERSION__>=199901L to decide when to include # C99 inttypes.h. We always have inttypes.h available with MSVC # (either the one bundled with MSVC 2013, or the one we bundle # ourselves), but we can't just define __STDC_VERSION__ without # breaking stuff, as MSVC doesn't fully support C99. There's also no # way to premptively include stdint. env.Append(CCFLAGS = ['-FIinttypes.h']) if host_platform.system() == 'Windows': # Prefer winflexbison binaries, as not only they are easier to install # (no additional dependencies), but also better Windows support. if check_prog(env, 'win_flex'): env["LEX"] = 'win_flex' env.Append(LEXFLAGS = [ # windows compatibility (uses <io.h> instead of <unistd.h> and # _isatty, _fileno functions) '--wincompat' ]) env.Tool('yacc') if host_platform.system() == 'Windows': if check_prog(env, 'win_bison'): env["YACC"] = 'win_bison' if env['llvm']: env.Tool('llvm') # Custom builders and methods env.Tool('custom') env.AddMethod(install_program, 'InstallProgram') env.AddMethod(install_shared_library, 'InstallSharedLibrary') env.AddMethod(msvc2013_compat, 'MSVC2013Compat') env.AddMethod(unit_test, 'UnitTest') env.PkgCheckModules('X11', ['x11', 'xext', 'xdamage', 'xfixes', 'glproto >= 1.4.13']) env.PkgCheckModules('XCB', ['x11-xcb', 'xcb-glx >= 1.8.1', 'xcb-dri2 >= 1.8']) env.PkgCheckModules('XF86VIDMODE', ['xxf86vm']) env.PkgCheckModules('DRM', ['libdrm >= 2.4.38']) env.PkgCheckModules('UDEV', ['libudev >= 151']) if env['x11']: env.Append(CPPPATH = env['X11_CPPPATH']) env['dri'] = env['x11'] and env['drm'] # for debugging #print env.Dump() def exists(env): return 1