configure

   1 #!/usr/bin/env python
   2 import optparse
   3 import os
   4 import pprint
   5 import re
   6 import shlex
   7 import subprocess
   8 import sys
   9
  10 CC = os.environ.get('CC', 'cc')
  11
  12 root_dir = os.path.dirname(__file__)
  13 sys.path.insert(0, os.path.join(root_dir, 'deps', 'v8', 'tools'))
  14
  15 # parse our options
  16 parser = optparse.OptionParser()
  17
  18 parser.add_option("--debug",
  19     action="store_true",
  20     dest="debug",
  21     help="Also build debug build")
  22
  23 parser.add_option("--prefix",
  24     action="store",
  25     dest="prefix",
  26     help="Select the install prefix (defaults to /usr/local)")
  27
  28 parser.add_option("--without-npm",
  29     action="store_true",
  30     dest="without_npm",
  31     help="Don\'t install the bundled npm package manager")
  32
  33 parser.add_option("--without-ssl",
  34     action="store_true",
  35     dest="without_ssl",
  36     help="Build without SSL")
  37
  38 parser.add_option("--without-snapshot",
  39     action="store_true",
  40     dest="without_snapshot",
  41     help="Build without snapshotting V8 libraries. You might want to set"
  42          " this for cross-compiling. [Default: False]")
  43
  44 parser.add_option("--shared-v8",
  45     action="store_true",
  46     dest="shared_v8",
  47     help="Link to a shared V8 DLL instead of static linking")
  48
  49 parser.add_option("--shared-v8-includes",
  50     action="store",
  51     dest="shared_v8_includes",
  52     help="Directory containing V8 header files")
  53
  54 parser.add_option("--shared-v8-libpath",
  55     action="store",
  56     dest="shared_v8_libpath",
  57     help="A directory to search for the shared V8 DLL")
  58
  59 parser.add_option("--shared-v8-libname",
  60     action="store",
  61     dest="shared_v8_libname",
  62     help="Alternative lib name to link to (default: 'v8')")
  63
  64 parser.add_option("--shared-openssl",
  65     action="store_true",
  66     dest="shared_openssl",
  67     help="Link to a shared OpenSSl DLL instead of static linking")
  68
  69 parser.add_option("--shared-openssl-includes",
  70     action="store",
  71     dest="shared_openssl_includes",
  72     help="Directory containing OpenSSL header files")
  73
  74 parser.add_option("--shared-openssl-libpath",
  75     action="store",
  76     dest="shared_openssl_libpath",
  77     help="A directory to search for the shared OpenSSL DLLs")
  78
  79 parser.add_option("--shared-openssl-libname",
  80     action="store",
  81     dest="shared_openssl_libname",
  82     help="Alternative lib name to link to (default: 'crypto,ssl')")
  83
  84 # deprecated
  85 parser.add_option("--openssl-use-sys",
  86     action="store_true",
  87     dest="shared_openssl",
  88     help=optparse.SUPPRESS_HELP)
  89
  90 # deprecated
  91 parser.add_option("--openssl-includes",
  92     action="store",
  93     dest="shared_openssl_includes",
  94     help=optparse.SUPPRESS_HELP)
  95
  96 # deprecated
  97 parser.add_option("--openssl-libpath",
  98     action="store",
  99     dest="shared_openssl_libpath",
 100     help=optparse.SUPPRESS_HELP)
 101
 102 # TODO document when we've decided on what the tracing API and its options will
 103 # look like
 104 parser.add_option("--systemtap-includes",
 105     action="store",
 106     dest="systemtap_includes",
 107     help=optparse.SUPPRESS_HELP)
 108
 109 parser.add_option("--no-ssl2",
 110     action="store_true",
 111     dest="no_ssl2",
 112     help="Disable OpenSSL v2")
 113
 114 parser.add_option("--shared-zlib",
 115     action="store_true",
 116     dest="shared_zlib",
 117     help="Link to a shared zlib DLL instead of static linking")
 118
 119 parser.add_option("--shared-zlib-includes",
 120     action="store",
 121     dest="shared_zlib_includes",
 122     help="Directory containing zlib header files")
 123
 124 parser.add_option("--shared-zlib-libpath",
 125     action="store",
 126     dest="shared_zlib_libpath",
 127     help="A directory to search for the shared zlib DLL")
 128
 129 parser.add_option("--shared-zlib-libname",
 130     action="store",
 131     dest="shared_zlib_libname",
 132     help="Alternative lib name to link to (default: 'z')")
 133
 134 parser.add_option("--shared-http-parser",
 135     action="store_true",
 136     dest="shared_http_parser",
 137     help="Link to a shared http_parser DLL instead of static linking")
 138
 139 parser.add_option("--shared-http-parser-includes",
 140     action="store",
 141     dest="shared_http_parser_includes",
 142     help="Directory containing http_parser header files")
 143
 144 parser.add_option("--shared-http-parser-libpath",
 145     action="store",
 146     dest="shared_http_parser_libpath",
 147     help="A directory to search for the shared http_parser DLL")
 148
 149 parser.add_option("--shared-http-parser-libname",
 150     action="store",
 151     dest="shared_http_parser_libname",
 152     help="Alternative lib name to link to (default: 'http_parser')")
 153
 154 parser.add_option("--shared-cares",
 155     action="store_true",
 156     dest="shared_cares",
 157     help="Link to a shared cares DLL instead of static linking")
 158
 159 parser.add_option("--shared-cares-includes",
 160     action="store",
 161     dest="shared_cares_includes",
 162     help="Directory containing cares header files")
 163
 164 parser.add_option("--shared-cares-libpath",
 165     action="store",
 166     dest="shared_cares_libpath",
 167     help="A directory to search for the shared cares DLL")
 168
 169 parser.add_option("--shared-cares-libname",
 170     action="store",
 171     dest="shared_cares_libname",
 172     help="Alternative lib name to link to (default: 'cares')")
 173
 174 parser.add_option("--with-dtrace",
 175     action="store_true",
 176     dest="with_dtrace",
 177     help="Build with DTrace (default is true on sunos)")
 178
 179 parser.add_option("--without-dtrace",
 180     action="store_true",
 181     dest="without_dtrace",
 182     help="Build without DTrace")
 183
 184 parser.add_option("--with-etw",
 185     action="store_true",
 186     dest="with_etw",
 187     help="Build with ETW (default is true on Windows)")
 188
 189 parser.add_option("--without-etw",
 190     action="store_true",
 191     dest="without_etw",
 192     help="Build without ETW")
 193
 194 # CHECKME does this still work with recent releases of V8?
 195 parser.add_option("--gdb",
 196     action="store_true",
 197     dest="gdb",
 198     help="add gdb support")
 199
 200 parser.add_option("--dest-cpu",
 201     action="store",
 202     dest="dest_cpu",
 203     help="CPU architecture to build for. Valid values are: arm, ia32, x64")
 204
 205 parser.add_option("--dest-os",
 206     action="store",
 207     dest="dest_os",
 208     help="Operating system to build for. Valid values are: "
 209          "win, mac, solaris, freebsd, linux")
 210
 211 parser.add_option("--no-ifaddrs",
 212     action="store_true",
 213     dest="no_ifaddrs",
 214     help="Use on deprecated SunOS systems that do not support ifaddrs.h")
 215
 216 parser.add_option("--with-arm-float-abi",
 217     action="store",
 218     dest="arm_float_abi",
 219     help="Specifies which floating-point ABI to use. Valid values are: "
 220          "soft, softfp, hard")
 221
 222 parser.add_option("--ninja",
 223     action="store_true",
 224     dest="use_ninja",
 225     help="Generate files for the ninja build system")
 226
 227 # Using --unsafe-optimizations voids your warranty.
 228 parser.add_option("--unsafe-optimizations",
 229     action="store_true",
 230     dest="unsafe_optimizations",
 231     help=optparse.SUPPRESS_HELP)
 232
 233 parser.add_option("--xcode",
 234     action="store_true",
 235     dest="use_xcode",
 236     help="Generate build files for use with xcode")
 237
 238 (options, args) = parser.parse_args()
 239
 240
 241 def b(value):
 242   """Returns the string 'true' if value is truthy, 'false' otherwise."""
 243   if value:
 244     return 'true'
 245   else:
 246     return 'false'
 247
 248
 249 def pkg_config(pkg):
 250   cmd = os.popen('pkg-config --libs %s' % pkg, 'r')
 251   libs = cmd.readline().strip()
 252   ret = cmd.close()
 253   if (ret): return None
 254
 255   cmd = os.popen('pkg-config --cflags %s' % pkg, 'r')
 256   cflags = cmd.readline().strip()
 257   ret = cmd.close()
 258   if (ret): return None
 259
 260   return (libs, cflags)
 261
 262
 263 def cc_macros():
 264   """Checks predefined macros using the CC command."""
 265
 266   try:
 267     p = subprocess.Popen(shlex.split(CC) + ['-dM', '-E', '-'],
 268                          stdin=subprocess.PIPE,
 269                          stdout=subprocess.PIPE,
 270                          stderr=subprocess.PIPE)
 271   except OSError:
 272     print '''Node.js configure error: No acceptable C compiler found!
 273
 274         Please make sure you have a C compiler installed on your system and/or
 275         consider adjusting the CC environment variable if you installed
 276         it in a non-standard prefix.
 277         '''
 278     sys.exit()
 279
 280   p.stdin.write('\n')
 281   out = p.communicate()[0]
 282
 283   out = str(out).split('\n')
 284
 285   k = {}
 286   for line in out:
 287     lst = shlex.split(line)
 288     if len(lst) > 2:
 289       key = lst[1]
 290       val = lst[2]
 291       k[key] = val
 292   return k
 293
 294
 295 def is_arch_armv7():
 296   """Check for ARMv7 instructions"""
 297   cc_macros_cache = cc_macros()
 298   return ('__ARM_ARCH_7__' in cc_macros_cache or
 299           '__ARM_ARCH_7A__' in cc_macros_cache or
 300           '__ARM_ARCH_7R__' in cc_macros_cache or
 301           '__ARM_ARCH_7M__' in cc_macros_cache)
 302
 303
 304 def arm_hard_float_abi():
 305   """Check for hardfloat or softfloat eabi on ARM"""
 306   # GCC versions 4.6 and above define __ARM_PCS or __ARM_PCS_VFP to specify
 307   # the Floating Point ABI used (PCS stands for Procedure Call Standard).
 308   # We use these as well as a couple of other defines to statically determine
 309   # what FP ABI used.
 310   # GCC versions 4.4 and below don't support hard-fp.
 311   # GCC versions 4.5 may support hard-fp without defining __ARM_PCS or
 312   # __ARM_PCS_VFP.
 313
 314   if compiler_version() >= (4, 6, 0):
 315     return '__ARM_PCS_VFP' in cc_macros()
 316   elif compiler_version() < (4, 5, 0):
 317     return False
 318   elif '__ARM_PCS_VFP' in cc_macros():
 319     return True
 320   elif ('__ARM_PCS' in cc_macros() or
 321         '__SOFTFP' in cc_macros() or
 322         not '__VFP_FP__' in cc_macros()):
 323     return False
 324   else:
 325     print '''Node.js configure error: Your version of GCC does not report
 326       the Floating-Point ABI to compile for your hardware
 327
 328       Please manually specify which floating-point ABI to use with the
 329       --with-arm-float-abi option.
 330       '''
 331     sys.exit()
 332
 333
 334 def host_arch_cc():
 335   """Host architecture check using the CC command."""
 336
 337   k = cc_macros()
 338
 339   matchup = {
 340     '__x86_64__'  : 'x64',
 341     '__i386__'    : 'ia32',
 342     '__arm__'     : 'arm',
 343   }
 344
 345   rtn = 'ia32' # default
 346
 347   for i in matchup:
 348     if i in k and k[i] != '0':
 349       rtn = matchup[i]
 350       break
 351
 352   return rtn
 353
 354
 355 def host_arch_win():
 356   """Host architecture check using environ vars (better way to do this?)"""
 357
 358   arch = os.environ.get('PROCESSOR_ARCHITECTURE', 'x86')
 359
 360   matchup = {
 361     'AMD64'  : 'x64',
 362     'x86'    : 'ia32',
 363     'arm'    : 'arm',
 364   }
 365
 366   return matchup.get(arch, 'ia32')
 367
 368
 369 def compiler_version():
 370   try:
 371     proc = subprocess.Popen(shlex.split(CC) + ['--version'], stdout=subprocess.PIPE)
 372   except WindowsError:
 373     return (0, False)
 374
 375   is_clang = 'clang' in proc.communicate()[0].split('\n')[0]
 376
 377   proc = subprocess.Popen(shlex.split(CC) + ['-dumpversion'], stdout=subprocess.PIPE)
 378   version = tuple(map(int, proc.communicate()[0].split('.')))
 379
 380   return (version, is_clang)
 381
 382
 383 def configure_arm(o):
 384   # V8 on ARM requires that armv7 is set. CPU Model detected by
 385   # the presence of __ARM_ARCH_7__ and the like defines in compiler
 386   if options.arm_float_abi:
 387     hard_float = options.arm_float_abi == 'hard'
 388   else:
 389     hard_float = arm_hard_float_abi()
 390   o['variables']['v8_use_arm_eabi_hardfloat'] = b(hard_float)
 391
 392   armv7 = is_arch_armv7()
 393   if armv7:
 394     # CHECKME VFPv3 implies ARMv7+ but is the reverse true as well?
 395     o['variables']['arm_fpu'] = 'vfpv3'
 396     o['variables']['arm_neon'] = 0
 397   o['variables']['armv7'] = int(armv7)
 398
 399
 400 def configure_node(o):
 401   o['variables']['v8_enable_gdbjit'] = 1 if options.gdb else 0
 402   o['variables']['v8_no_strict_aliasing'] = 1 # work around compiler bugs
 403   o['variables']['node_prefix'] = os.path.expanduser(options.prefix or '')
 404   o['variables']['node_install_npm'] = b(not options.without_npm)
 405   o['variables']['node_unsafe_optimizations'] = (
 406     1 if options.unsafe_optimizations else 0)
 407   o['default_configuration'] = 'Debug' if options.debug else 'Release'
 408
 409   host_arch = host_arch_win() if os.name == 'nt' else host_arch_cc()
 410   target_arch = options.dest_cpu or host_arch
 411   o['variables']['host_arch'] = host_arch
 412   o['variables']['target_arch'] = target_arch
 413
 414   if target_arch == 'arm':
 415     configure_arm(o)
 416
 417   cc_version, is_clang = compiler_version()
 418   o['variables']['clang'] = 1 if is_clang else 0
 419
 420   if not is_clang and cc_version != 0:
 421     o['variables']['gcc_version'] = 10 * cc_version[0] + cc_version[1]
 422
 423   # clang has always supported -fvisibility=hidden, right?
 424   if not is_clang and cc_version < (4,0,0):
 425     o['variables']['visibility'] = ''
 426
 427   # By default, enable DTrace on SunOS systems. Don't allow it on other
 428   # systems, since it won't work.  (The MacOS build process is different than
 429   # SunOS, and we haven't implemented it.)
 430   if sys.platform.startswith('sunos'):
 431     o['variables']['node_use_dtrace'] = b(not options.without_dtrace)
 432   elif sys.platform.startswith('linux'):
 433     o['variables']['node_use_dtrace'] = 'false'
 434     o['variables']['node_use_systemtap'] = b(options.with_dtrace)
 435     if options.systemtap_includes:
 436       o['include_dirs'] += [options.systemtap_includes]
 437   elif b(options.with_dtrace) == 'true':
 438     raise Exception(
 439        'DTrace is currently only supported on SunOS or Linux systems.')
 440   else:
 441     o['variables']['node_use_dtrace'] = 'false'
 442     o['variables']['node_use_systemtap'] = 'false'
 443
 444   if options.no_ifaddrs:
 445     o['defines'] += ['SUNOS_NO_IFADDRS']
 446
 447   # By default, enable ETW on Windows.
 448   if sys.platform.startswith('win32'):
 449     o['variables']['node_use_etw'] = b(not options.without_etw);
 450   elif b(options.with_etw) == 'true':
 451     raise Exception('ETW is only supported on Windows.')
 452   else:
 453     o['variables']['node_use_etw'] = 'false'
 454
 455
 456 def configure_libz(o):
 457   o['variables']['node_shared_zlib'] = b(options.shared_zlib)
 458
 459   # assume shared_zlib if one of these is set?
 460   if options.shared_zlib_libpath:
 461     o['libraries'] += ['-L%s' % options.shared_zlib_libpath]
 462   if options.shared_zlib_libname:
 463     o['libraries'] += ['-l%s' % options.shared_zlib_libname]
 464   elif options.shared_zlib:
 465     o['libraries'] += ['-lz']
 466   if options.shared_zlib_includes:
 467     o['include_dirs'] += [options.shared_zlib_includes]
 468
 469
 470 def configure_http_parser(o):
 471     o['variables']['node_shared_http_parser'] = b(options.shared_http_parser)
 472
 473     # assume shared http_parser if one of these is set?
 474     if options.shared_http_parser_libpath:
 475         o['libraries'] += ['-L%s' % options.shared_http_parser_libpath]
 476     if options.shared_http_parser_libname:
 477         o['libraries'] += ['-l%s' % options.shared_http_parser_libname]
 478     elif options.shared_http_parser:
 479         o['libraries'] += ['-lhttp_parser']
 480     if options.shared_http_parser_includes:
 481         o['include_dirs'] += [options.shared_http_parser_includes]
 482
 483
 484 def configure_cares(o):
 485     o['variables']['node_shared_cares'] = b(options.shared_cares)
 486
 487     # assume shared cares if one of these is set?
 488     if options.shared_cares_libpath:
 489         o['libraries'] += ['-L%s' % options.shared_cares_libpath]
 490     if options.shared_cares_libname:
 491         o['libraries'] += ['-l%s' % options.shared_cares_libname]
 492     elif options.shared_cares:
 493         o['libraries'] += ['-lcares']
 494     if options.shared_cares_includes:
 495         o['include_dirs'] += [options.shared_cares_includes]
 496
 497
 498 def configure_v8(o):
 499   o['variables']['v8_use_snapshot'] = b(not options.without_snapshot)
 500   o['variables']['node_shared_v8'] = b(options.shared_v8)
 501
 502   # assume shared_v8 if one of these is set?
 503   if options.shared_v8_libpath:
 504     o['libraries'] += ['-L%s' % options.shared_v8_libpath]
 505   if options.shared_v8_libname:
 506     o['libraries'] += ['-l%s' % options.shared_v8_libname]
 507   elif options.shared_v8:
 508     o['libraries'] += ['-lv8']
 509   if options.shared_v8_includes:
 510     o['include_dirs'] += [options.shared_v8_includes]
 511
 512
 513 def configure_openssl(o):
 514   o['variables']['node_use_openssl'] = b(not options.without_ssl)
 515   o['variables']['node_shared_openssl'] = b(options.shared_openssl)
 516
 517   if options.without_ssl:
 518     return
 519
 520   if options.no_ssl2:
 521     o['defines'] += ['OPENSSL_NO_SSL2=1']
 522
 523   if options.shared_openssl:
 524     (libs, cflags) = pkg_config('openssl') or ('-lssl -lcrypto', '')
 525
 526     if options.shared_openssl_libpath:
 527       o['libraries'] += ['-L%s' % options.shared_openssl_libpath]
 528
 529     if options.shared_openssl_libname:
 530       libnames = options.shared_openssl_libname.split(',')
 531       o['libraries'] += ['-l%s' % s for s in libnames]
 532     else:
 533       o['libraries'] += libs.split()
 534
 535     if options.shared_openssl_includes:
 536       o['include_dirs'] += [options.shared_openssl_includes]
 537     else:
 538       o['cflags'] += cflags.split()
 539
 540
 541 output = {
 542   'variables': {},
 543   'include_dirs': [],
 544   'libraries': [],
 545   'defines': [],
 546   'cflags': [],
 547 }
 548
 549 configure_node(output)
 550 configure_libz(output)
 551 configure_http_parser(output)
 552 configure_cares(output)
 553 configure_v8(output)
 554 configure_openssl(output)
 555
 556 # variables should be a root level element,
 557 # move everything else to target_defaults
 558 variables = output['variables']
 559 del output['variables']
 560 output = {
 561   'variables': variables,
 562   'target_defaults': output
 563 }
 564 pprint.pprint(output, indent=2)
 565
 566 def write(filename, data):
 567   filename = os.path.join(root_dir, filename)
 568   print "creating ", filename
 569   f = open(filename, 'w+')
 570   f.write(data)
 571
 572 write('config.gypi', "# Do not edit. Generated by the configure script.\n" +
 573   pprint.pformat(output, indent=2) + "\n")
 574
 575 config = {
 576   'BUILDTYPE': 'Debug' if options.debug else 'Release',
 577   'USE_NINJA': str(int(options.use_ninja or 0)),
 578   'USE_XCODE': str(int(options.use_xcode or 0)),
 579 }
 580 config = '\n'.join(map('='.join, config.iteritems())) + '\n'
 581
 582 write('config.mk',
 583       '# Do not edit. Generated by the configure script.\n' + config)
 584
 585 if options.use_ninja:
 586   gyp_args = ['-f', 'ninja']
 587 elif options.use_xcode:
 588   gyp_args = ['-f', 'xcode']
 589 elif os.name == 'nt':
 590   gyp_args = ['-f', 'msvs', '-G', 'msvs_version=auto']
 591 elif options.dest_os:
 592   gyp_args = ['-f', 'make-' + options.dest_os]
 593 else:
 594   gyp_args = ['-f', 'make']
 595
 596 subprocess.call([sys.executable, 'tools/gyp_node'] + gyp_args)