1"""gallium 2 3Frontend-tool for Gallium3D architecture. 4 5""" 6 7# 8# Copyright 2008 VMware, Inc. 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 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. 30# 31 32from __future__ import print_function 33 34import distutils.version 35import os 36import os.path 37import re 38import subprocess 39import platform as host_platform 40import sys 41import tempfile 42 43import SCons.Action 44import SCons.Builder 45import SCons.Scanner 46 47 48def symlink(target, source, env): 49 target = str(target[0]) 50 source = str(source[0]) 51 if os.path.islink(target) or os.path.exists(target): 52 os.remove(target) 53 os.symlink(os.path.basename(source), target) 54 55def install(env, source, subdir): 56 target_dir = os.path.join(env.Dir('#.').srcnode().abspath, env['build_dir'], subdir) 57 return env.Install(target_dir, source) 58 59def install_program(env, source): 60 return install(env, source, 'bin') 61 62def install_shared_library(env, sources, version = ()): 63 targets = [] 64 install_dir = os.path.join(env.Dir('#.').srcnode().abspath, env['build_dir']) 65 version = tuple(map(str, version)) 66 if env['SHLIBSUFFIX'] == '.dll': 67 dlls = env.FindIxes(sources, 'SHLIBPREFIX', 'SHLIBSUFFIX') 68 targets += install(env, dlls, 'bin') 69 libs = env.FindIxes(sources, 'LIBPREFIX', 'LIBSUFFIX') 70 targets += install(env, libs, 'lib') 71 else: 72 for source in sources: 73 target_dir = os.path.join(install_dir, 'lib') 74 target_name = '.'.join((str(source),) + version) 75 last = env.InstallAs(os.path.join(target_dir, target_name), source) 76 targets += last 77 while len(version): 78 version = version[:-1] 79 target_name = '.'.join((str(source),) + version) 80 action = SCons.Action.Action(symlink, " Symlinking $TARGET ...") 81 last = env.Command(os.path.join(target_dir, target_name), last, action) 82 targets += last 83 return targets 84 85 86def msvc2013_compat(env): 87 if env['gcc']: 88 env.Append(CCFLAGS = [ 89 '-Werror=vla', 90 '-Werror=pointer-arith', 91 ]) 92 93 94def unit_test(env, test_name, program_target, args=None): 95 env.InstallProgram(program_target) 96 97 cmd = [program_target[0].abspath] 98 if args is not None: 99 cmd += args 100 cmd = ' '.join(cmd) 101 102 # http://www.scons.org/wiki/UnitTests 103 action = SCons.Action.Action(cmd, " Running $SOURCE ...") 104 alias = env.Alias(test_name, program_target, action) 105 env.AlwaysBuild(alias) 106 env.Depends('check', alias) 107 108 109def num_jobs(): 110 try: 111 return int(os.environ['NUMBER_OF_PROCESSORS']) 112 except (ValueError, KeyError): 113 pass 114 115 try: 116 return os.sysconf('SC_NPROCESSORS_ONLN') 117 except (ValueError, OSError, AttributeError): 118 pass 119 120 try: 121 return int(os.popen2("sysctl -n hw.ncpu")[1].read()) 122 except ValueError: 123 pass 124 125 return 1 126 127 128def check_cc(env, cc, expr, cpp_opt = '-E'): 129 # Invoke C-preprocessor to determine whether the specified expression is 130 # true or not. 131 132 sys.stdout.write('Checking for %s ... ' % cc) 133 134 source = tempfile.NamedTemporaryFile(suffix='.c', delete=False) 135 source.write(('#if !(%s)\n#error\n#endif\n' % expr).encode()) 136 source.close() 137 138 # sys.stderr.write('%r %s %s\n' % (env['CC'], cpp_opt, source.name)); 139 140 pipe = SCons.Action._subproc(env, env.Split(env['CC']) + [cpp_opt, source.name], 141 stdin = 'devnull', 142 stderr = 'devnull', 143 stdout = 'devnull') 144 result = pipe.wait() == 0 145 146 os.unlink(source.name) 147 148 sys.stdout.write(' %s\n' % ['no', 'yes'][int(bool(result))]) 149 return result 150 151def check_header(env, header): 152 '''Check if the header exist''' 153 154 conf = SCons.Script.Configure(env) 155 have_header = False 156 157 if conf.CheckHeader(header): 158 have_header = True 159 160 env = conf.Finish() 161 return have_header 162 163def check_functions(env, functions): 164 '''Check if all of the functions exist''' 165 166 conf = SCons.Script.Configure(env) 167 have_functions = True 168 169 for function in functions: 170 if not conf.CheckFunc(function): 171 have_functions = False 172 173 env = conf.Finish() 174 return have_functions 175 176def check_prog(env, prog): 177 """Check whether this program exists.""" 178 179 sys.stdout.write('Checking for %s ... ' % prog) 180 181 result = env.Detect(prog) 182 183 sys.stdout.write(' %s\n' % ['no', 'yes'][int(bool(result))]) 184 return result 185 186 187def generate(env): 188 """Common environment generation code""" 189 190 # Tell tools which machine to compile for 191 env['TARGET_ARCH'] = env['machine'] 192 env['MSVS_ARCH'] = env['machine'] 193 194 # Toolchain 195 platform = env['platform'] 196 env.Tool(env['toolchain']) 197 198 # Allow override compiler and specify additional flags from environment 199 if 'CC' in os.environ: 200 env['CC'] = os.environ['CC'] 201 if 'CFLAGS' in os.environ: 202 env['CCFLAGS'] += SCons.Util.CLVar(os.environ['CFLAGS']) 203 if 'CXX' in os.environ: 204 env['CXX'] = os.environ['CXX'] 205 if 'CXXFLAGS' in os.environ: 206 env['CXXFLAGS'] += SCons.Util.CLVar(os.environ['CXXFLAGS']) 207 if 'LDFLAGS' in os.environ: 208 env['LINKFLAGS'] += SCons.Util.CLVar(os.environ['LDFLAGS']) 209 210 # Detect gcc/clang not by executable name, but through pre-defined macros 211 # as autoconf does, to avoid drawing wrong conclusions when using tools 212 # that overrice CC/CXX like scan-build. 213 env['gcc_compat'] = 0 214 env['clang'] = 0 215 env['msvc'] = 0 216 if host_platform.system() == 'Windows': 217 env['msvc'] = check_cc(env, 'MSVC', 'defined(_MSC_VER)', '/E') 218 if not env['msvc']: 219 env['gcc_compat'] = check_cc(env, 'GCC', 'defined(__GNUC__)') 220 env['clang'] = check_cc(env, 'Clang', '__clang__') 221 env['gcc'] = env['gcc_compat'] and not env['clang'] 222 env['suncc'] = env['platform'] == 'sunos' and os.path.basename(env['CC']) == 'cc' 223 env['icc'] = 'icc' == os.path.basename(env['CC']) 224 225 # shortcuts 226 machine = env['machine'] 227 platform = env['platform'] 228 x86 = env['machine'] == 'x86' 229 ppc = env['machine'] == 'ppc' 230 gcc_compat = env['gcc_compat'] 231 msvc = env['msvc'] 232 suncc = env['suncc'] 233 icc = env['icc'] 234 235 # Determine whether we are cross compiling; in particular, whether we need 236 # to compile code generators with a different compiler as the target code. 237 hosthost_platform = host_platform.system().lower() 238 if hosthost_platform.startswith('cygwin'): 239 hosthost_platform = 'cygwin' 240 # Avoid spurious crosscompilation in MSYS2 environment. 241 if hosthost_platform.startswith('mingw'): 242 hosthost_platform = 'windows' 243 host_machine = os.environ.get('PROCESSOR_ARCHITEW6432', os.environ.get('PROCESSOR_ARCHITECTURE', host_platform.machine())) 244 host_machine = { 245 'x86': 'x86', 246 'i386': 'x86', 247 'i486': 'x86', 248 'i586': 'x86', 249 'i686': 'x86', 250 'ppc' : 'ppc', 251 'AMD64': 'x86_64', 252 'x86_64': 'x86_64', 253 }.get(host_machine, 'generic') 254 env['crosscompile'] = platform != hosthost_platform 255 if machine == 'x86_64' and host_machine != 'x86_64': 256 env['crosscompile'] = True 257 env['hostonly'] = False 258 259 # Backwards compatability with the debug= profile= options 260 if env['build'] == 'debug': 261 if not env['debug']: 262 print('scons: warning: debug option is deprecated and will be removed eventually; use instead') 263 print('') 264 print(' scons build=release') 265 print('') 266 env['build'] = 'release' 267 if env['profile']: 268 print('scons: warning: profile option is deprecated and will be removed eventually; use instead') 269 print('') 270 print(' scons build=profile') 271 print('') 272 env['build'] = 'profile' 273 if False: 274 # Enforce SConscripts to use the new build variable 275 env.popitem('debug') 276 env.popitem('profile') 277 else: 278 # Backwards portability with older sconscripts 279 if env['build'] in ('debug', 'checked'): 280 env['debug'] = True 281 env['profile'] = False 282 if env['build'] == 'profile': 283 env['debug'] = False 284 env['profile'] = True 285 if env['build'] == 'release': 286 env['debug'] = False 287 env['profile'] = False 288 289 # Put build output in a separate dir, which depends on the current 290 # configuration. See also http://www.scons.org/wiki/AdvancedBuildExample 291 build_topdir = 'build' 292 build_subdir = env['platform'] 293 if env['embedded']: 294 build_subdir = 'embedded-' + build_subdir 295 if env['machine'] != 'generic': 296 build_subdir += '-' + env['machine'] 297 if env['build'] != 'release': 298 build_subdir += '-' + env['build'] 299 build_dir = os.path.join(build_topdir, build_subdir) 300 # Place the .sconsign file in the build dir too, to avoid issues with 301 # different scons versions building the same source file 302 env['build_dir'] = build_dir 303 env.SConsignFile(os.path.join(build_dir, '.sconsign')) 304 if 'SCONS_CACHE_DIR' in os.environ: 305 print('scons: Using build cache in %s.' % (os.environ['SCONS_CACHE_DIR'],)) 306 env.CacheDir(os.environ['SCONS_CACHE_DIR']) 307 env['CONFIGUREDIR'] = os.path.join(build_dir, 'conf') 308 env['CONFIGURELOG'] = os.path.join(os.path.abspath(build_dir), 'config.log') 309 310 # Parallel build 311 if env.GetOption('num_jobs') <= 1: 312 env.SetOption('num_jobs', num_jobs()) 313 314 # Speed up dependency checking. See 315 # - https://github.com/SCons/scons/wiki/GoFastButton 316 # - https://bugs.freedesktop.org/show_bug.cgi?id=109443 317 318 # Scons version string has consistently been in this format: 319 # MajorVersion.MinorVersion.Patch[.alpha/beta.yyyymmdd] 320 # so this formula should cover all versions regardless of type 321 # stable, alpha or beta. 322 # For simplicity alpha and beta flags are removed. 323 324 scons_version = distutils.version.StrictVersion('.'.join(SCons.__version__.split('.')[:3])) 325 if scons_version < distutils.version.StrictVersion('3.0.2') or \ 326 scons_version > distutils.version.StrictVersion('3.0.4'): 327 env.Decider('MD5-timestamp') 328 env.SetOption('max_drift', 60) 329 330 # C preprocessor options 331 cppdefines = [] 332 cppdefines += [ 333 '__STDC_CONSTANT_MACROS', 334 '__STDC_FORMAT_MACROS', 335 '__STDC_LIMIT_MACROS', 336 'HAVE_SCONS', 337 ] 338 if env['build'] in ('debug', 'checked'): 339 cppdefines += ['DEBUG'] 340 else: 341 cppdefines += ['NDEBUG'] 342 if env['build'] == 'profile': 343 cppdefines += ['PROFILE'] 344 if env['platform'] in ('posix', 'linux', 'freebsd', 'darwin'): 345 cppdefines += [ 346 '_POSIX_SOURCE', 347 ('_POSIX_C_SOURCE', '199309L'), 348 '_SVID_SOURCE', 349 '_BSD_SOURCE', 350 '_GNU_SOURCE', 351 '_DEFAULT_SOURCE', 352 ] 353 if env['platform'] == 'darwin': 354 cppdefines += [ 355 '_DARWIN_C_SOURCE', 356 'GLX_USE_APPLEGL', 357 'GLX_DIRECT_RENDERING', 358 'BUILDING_MESA', 359 ] 360 else: 361 cppdefines += [ 362 'GLX_DIRECT_RENDERING', 363 'GLX_INDIRECT_RENDERING', 364 ] 365 366 if check_header(env, 'xlocale.h'): 367 cppdefines += ['HAVE_XLOCALE_H'] 368 369 if check_header(env, 'endian.h'): 370 cppdefines += ['HAVE_ENDIAN_H'] 371 372 if check_functions(env, ['strtod_l', 'strtof_l']): 373 cppdefines += ['HAVE_STRTOD_L'] 374 375 if check_functions(env, ['random_r']): 376 cppdefines += ['HAVE_RANDOM_R'] 377 378 if check_functions(env, ['timespec_get']): 379 cppdefines += ['HAVE_TIMESPEC_GET'] 380 381 if check_header(env, 'sys/shm.h'): 382 cppdefines += ['HAVE_SYS_SHM_H'] 383 384 if check_functions(env, ['strtok_r']): 385 cppdefines += ['HAVE_STRTOK_R'] 386 387 #FIXME: we should really be checking for the major()/minor() 388 # functions/macros in these headers, but check_functions()'s 389 # SConf.CheckFunc() doesn't seem to support macros. 390 if check_header(env, 'sys/mkdev.h'): 391 cppdefines += ['MAJOR_IN_MKDEV'] 392 if check_header(env, 'sys/sysmacros.h'): 393 cppdefines += ['MAJOR_IN_SYSMACROS'] 394 395 if platform == 'windows': 396 cppdefines += [ 397 'WIN32', 398 '_WINDOWS', 399 #'_UNICODE', 400 #'UNICODE', 401 # http://msdn.microsoft.com/en-us/library/aa383745.aspx 402 ('_WIN32_WINNT', '0x0A00'), 403 ('WINVER', '0x0A00'), 404 ] 405 if gcc_compat: 406 cppdefines += [('__MSVCRT_VERSION__', '0x0700')] 407 cppdefines += ['_USE_MATH_DEFINES'] 408 if msvc: 409 cppdefines += [ 410 'VC_EXTRALEAN', 411 '_USE_MATH_DEFINES', 412 '_CRT_SECURE_NO_WARNINGS', 413 '_CRT_SECURE_NO_DEPRECATE', 414 '_SCL_SECURE_NO_WARNINGS', 415 '_SCL_SECURE_NO_DEPRECATE', 416 '_ALLOW_KEYWORD_MACROS', 417 '_HAS_EXCEPTIONS=0', # Tell C++ STL to not use exceptions 418 ] 419 if env['build'] in ('debug', 'checked'): 420 cppdefines += ['_DEBUG'] 421 if env['embedded']: 422 cppdefines += ['EMBEDDED_DEVICE'] 423 env.Append(CPPDEFINES = cppdefines) 424 425 # C compiler options 426 cflags = [] # C 427 cxxflags = [] # C++ 428 ccflags = [] # C & C++ 429 if gcc_compat: 430 if env['build'] == 'debug': 431 ccflags += ['-O0'] 432 else: 433 ccflags += ['-O3'] 434 if env['gcc']: 435 # gcc's builtin memcmp is slower than glibc's 436 # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43052 437 ccflags += ['-fno-builtin-memcmp'] 438 # Work around aliasing bugs - developers should comment this out 439 ccflags += ['-fno-strict-aliasing'] 440 ccflags += ['-g'] 441 if env['build'] in ('checked', 'profile') or env['asan']: 442 # See http://code.google.com/p/jrfonseca/wiki/Gprof2Dot#Which_options_should_I_pass_to_gcc_when_compiling_for_profiling? 443 ccflags += [ 444 '-fno-omit-frame-pointer', 445 ] 446 if env['gcc']: 447 ccflags += ['-fno-optimize-sibling-calls'] 448 if env['machine'] == 'x86': 449 ccflags += [ 450 '-m32', 451 #'-march=pentium4', 452 ] 453 if platform != 'haiku': 454 # NOTE: We need to ensure stack is realigned given that we 455 # produce shared objects, and have no control over the stack 456 # alignment policy of the application. Therefore we need 457 # -mstackrealign ore -mincoming-stack-boundary=2. 458 # 459 # XXX: We could have SSE without -mstackrealign if we always used 460 # __attribute__((force_align_arg_pointer)), but that's not 461 # always the case. 462 ccflags += [ 463 '-mstackrealign', # ensure stack is aligned 464 '-msse', '-msse2', # enable SIMD intrinsics 465 '-mfpmath=sse', # generate SSE floating-point arithmetic 466 ] 467 if platform in ['windows', 'darwin']: 468 # Workaround http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37216 469 ccflags += ['-fno-common'] 470 if platform in ['haiku']: 471 # Make optimizations compatible with Pentium or higher on Haiku 472 ccflags += [ 473 '-mstackrealign', # ensure stack is aligned 474 '-march=i586', # Haiku target is Pentium 475 '-mtune=i686' # use i686 where we can 476 ] 477 if env['machine'] == 'x86_64': 478 ccflags += ['-m64'] 479 if platform == 'darwin': 480 ccflags += ['-fno-common'] 481 if env['platform'] not in ('cygwin', 'haiku', 'windows'): 482 ccflags += ['-fvisibility=hidden'] 483 # See also: 484 # - http://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html 485 ccflags += [ 486 '-Wall', 487 '-Wno-long-long', 488 '-fmessage-length=0', # be nice to Eclipse 489 ] 490 cflags += [ 491 '-Werror=implicit-function-declaration', 492 '-Werror=missing-prototypes', 493 '-Werror=return-type', 494 '-Werror=incompatible-pointer-types', 495 ] 496 if platform == 'darwin' and host_platform.mac_ver()[0] >= '10.15': 497 cflags += ['-std=gnu11'] 498 else: 499 cflags += ['-std=gnu99'] 500 cxxflags += ['-std=c++14'] 501 if icc: 502 cflags += [ 503 '-std=gnu99', 504 ] 505 if msvc: 506 # See also: 507 # - http://msdn.microsoft.com/en-us/library/19z1t1wy.aspx 508 # - cl /? 509 if env['build'] == 'debug': 510 ccflags += [ 511 '/Od', # disable optimizations 512 '/Oi', # enable intrinsic functions 513 ] 514 else: 515 ccflags += [ 516 '/O2', # optimize for speed 517 ] 518 if env['build'] == 'release': 519 if not env['clang']: 520 ccflags += [ 521 '/GL', # enable whole program optimization 522 ] 523 else: 524 ccflags += [ 525 '/Oy-', # disable frame pointer omission 526 ] 527 ccflags += [ 528 '/W3', # warning level 529 '/wd4018', # signed/unsigned mismatch 530 '/wd4056', # overflow in floating-point constant arithmetic 531 '/wd4244', # conversion from 'type1' to 'type2', possible loss of data 532 '/wd4267', # 'var' : conversion from 'size_t' to 'type', possible loss of data 533 '/wd4305', # truncation from 'type1' to 'type2' 534 '/wd4351', # new behavior: elements of array 'array' will be default initialized 535 '/wd4756', # overflow in constant arithmetic 536 '/wd4800', # forcing value to bool 'true' or 'false' (performance warning) 537 '/wd4996', # disable deprecated POSIX name warnings 538 ] 539 if env['clang']: 540 ccflags += [ 541 '-Wno-microsoft-enum-value', # enumerator value is not representable in underlying type 'int' 542 ] 543 if env['machine'] == 'x86': 544 ccflags += [ 545 '/arch:SSE2', # use the SSE2 instructions (default since MSVC 2012) 546 ] 547 if platform == 'windows': 548 ccflags += [ 549 # TODO 550 ] 551 # Automatic pdb generation 552 # See http://scons.tigris.org/issues/show_bug.cgi?id=1656 553 env.EnsureSConsVersion(0, 98, 0) 554 env['PDB'] = '${TARGET.base}.pdb' 555 env.Append(CCFLAGS = ccflags) 556 env.Append(CFLAGS = cflags) 557 env.Append(CXXFLAGS = cxxflags) 558 559 if env['platform'] == 'windows' and msvc: 560 # Choose the appropriate MSVC CRT 561 # http://msdn.microsoft.com/en-us/library/2kzt1wy3.aspx 562 if env['build'] in ('debug', 'checked'): 563 env.Append(CCFLAGS = ['/MTd']) 564 env.Append(SHCCFLAGS = ['/LDd']) 565 else: 566 env.Append(CCFLAGS = ['/MT']) 567 env.Append(SHCCFLAGS = ['/LD']) 568 569 # Static code analysis 570 if env['analyze']: 571 if env['msvc']: 572 # http://msdn.microsoft.com/en-us/library/ms173498.aspx 573 env.Append(CCFLAGS = [ 574 '/analyze', 575 #'/analyze:log', '${TARGET.base}.xml', 576 '/wd28251', # Inconsistent annotation for function 577 ]) 578 if env['clang']: 579 # scan-build will produce more comprehensive output 580 env.Append(CCFLAGS = ['--analyze']) 581 582 # https://github.com/google/sanitizers/wiki/AddressSanitizer 583 if env['asan']: 584 if gcc_compat: 585 env.Append(CCFLAGS = [ 586 '-fsanitize=address', 587 ]) 588 env.Append(LINKFLAGS = [ 589 '-fsanitize=address', 590 ]) 591 592 # Assembler options 593 if gcc_compat: 594 if env['machine'] == 'x86': 595 env.Append(ASFLAGS = ['-m32']) 596 if env['machine'] == 'x86_64': 597 env.Append(ASFLAGS = ['-m64']) 598 599 # Linker options 600 linkflags = [] 601 shlinkflags = [] 602 if gcc_compat: 603 if env['machine'] == 'x86': 604 linkflags += ['-m32'] 605 if env['machine'] == 'x86_64': 606 linkflags += ['-m64'] 607 if env['platform'] not in ('darwin'): 608 shlinkflags += [ 609 '-Wl,-Bsymbolic', 610 ] 611 # Handle circular dependencies in the libraries 612 if env['platform'] in ('darwin'): 613 pass 614 else: 615 env['_LIBFLAGS'] = '-Wl,--start-group ' + env['_LIBFLAGS'] + ' -Wl,--end-group' 616 if env['platform'] == 'windows': 617 linkflags += [ 618 '-Wl,--nxcompat', # DEP 619 '-Wl,--dynamicbase', # ASLR 620 ] 621 # Avoid depending on gcc runtime DLLs 622 linkflags += ['-static-libgcc'] 623 if 'w64' in env['CC'].split('-'): 624 linkflags += ['-static-libstdc++'] 625 # Handle the @xx symbol munging of DLL exports 626 shlinkflags += ['-Wl,--enable-stdcall-fixup'] 627 #shlinkflags += ['-Wl,--kill-at'] 628 if msvc: 629 if env['build'] == 'release' and not env['clang']: 630 # enable Link-time Code Generation 631 linkflags += ['/LTCG'] 632 env.Append(ARFLAGS = ['/LTCG']) 633 if platform == 'windows' and msvc: 634 # See also: 635 # - http://msdn2.microsoft.com/en-us/library/y0zzbyt4.aspx 636 linkflags += [ 637 '/fixed:no', 638 '/incremental:no', 639 '/dynamicbase', # ASLR 640 '/nxcompat', # DEP 641 ] 642 env.Append(LINKFLAGS = linkflags) 643 env.Append(SHLINKFLAGS = shlinkflags) 644 645 # We have C++ in several libraries, so always link with the C++ compiler 646 if gcc_compat: 647 env['LINK'] = env['CXX'] 648 649 # Default libs 650 libs = [] 651 if env['platform'] in ('darwin', 'freebsd', 'linux', 'posix', 'sunos'): 652 libs += ['m', 'pthread', 'dl'] 653 if env['platform'] in ('linux',): 654 libs += ['rt'] 655 if env['platform'] in ('haiku'): 656 libs += ['root', 'be', 'network', 'translation'] 657 env.Append(LIBS = libs) 658 659 # OpenMP 660 if env['openmp']: 661 if env['msvc']: 662 env.Append(CCFLAGS = ['/openmp']) 663 # When building openmp release VS2008 link.exe crashes with LNK1103 error. 664 # Workaround: overwrite PDB flags with empty value as it isn't required anyways 665 if env['build'] == 'release': 666 env['PDB'] = '' 667 if env['gcc']: 668 env.Append(CCFLAGS = ['-fopenmp']) 669 env.Append(LIBS = ['gomp']) 670 671 # Load tools 672 env.Tool('lex') 673 if env['msvc']: 674 env.Append(LEXFLAGS = [ 675 # Force flex to use const keyword in prototypes, as relies on 676 # __cplusplus or __STDC__ macro to determine whether it's safe to 677 # use const keyword, but MSVC never defines __STDC__ unless we 678 # disable all MSVC extensions. 679 '-DYY_USE_CONST=', 680 ]) 681 # Flex relies on __STDC_VERSION__>=199901L to decide when to include 682 # C99 inttypes.h. We always have inttypes.h available with MSVC 683 # (either the one bundled with MSVC 2013, or the one we bundle 684 # ourselves), but we can't just define __STDC_VERSION__ without 685 # breaking stuff, as MSVC doesn't fully support C99. There's also no 686 # way to premptively include stdint. 687 env.Append(CCFLAGS = ['-FIinttypes.h']) 688 if host_platform.system() == 'Windows': 689 # Prefer winflexbison binaries, as not only they are easier to install 690 # (no additional dependencies), but also better Windows support. 691 if check_prog(env, 'win_flex'): 692 env["LEX"] = 'win_flex' 693 env.Append(LEXFLAGS = [ 694 # windows compatibility (uses <io.h> instead of <unistd.h> and 695 # _isatty, _fileno functions) 696 '--wincompat' 697 ]) 698 699 env.Tool('yacc') 700 if host_platform.system() == 'Windows': 701 if check_prog(env, 'win_bison'): 702 env["YACC"] = 'win_bison' 703 704 if env['llvm']: 705 env.Tool('llvm') 706 707 # Custom builders and methods 708 env.Tool('custom') 709 env.AddMethod(install_program, 'InstallProgram') 710 env.AddMethod(install_shared_library, 'InstallSharedLibrary') 711 env.AddMethod(msvc2013_compat, 'MSVC2013Compat') 712 env.AddMethod(unit_test, 'UnitTest') 713 714 env.PkgCheckModules('X11', ['x11', 'xext', 'xdamage >= 1.1', 'xfixes', 'glproto >= 1.4.13', 'dri2proto >= 2.8']) 715 env.PkgCheckModules('XCB', ['x11-xcb', 'xcb-glx >= 1.8.1', 'xcb-dri2 >= 1.8']) 716 env.PkgCheckModules('XF86VIDMODE', ['xxf86vm']) 717 env.PkgCheckModules('DRM', ['libdrm >= 2.4.75']) 718 719 if not os.path.exists("src/util/format_srgb.c"): 720 print("Checking for Python Mako module (>= 0.8.0)... ", end='') 721 try: 722 import mako 723 except ImportError: 724 print("no") 725 exit(1) 726 if distutils.version.StrictVersion(mako.__version__) < distutils.version.StrictVersion('0.8.0'): 727 print("no") 728 exit(1) 729 print("yes") 730 731 if env['x11']: 732 env.Append(CPPPATH = env['X11_CPPPATH']) 733 734 env['dri'] = env['x11'] and env['drm'] 735 736 # for debugging 737 #print env.Dump() 738 739 740def exists(env): 741 return 1 742