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("--with-dtrace",
 155     action="store_true",
 156     dest="with_dtrace",
 157     help="Build with DTrace (default is true on sunos)")
 158
 159 parser.add_option("--without-dtrace",
 160     action="store_true",
 161     dest="without_dtrace",
 162     help="Build without DTrace")
 163
 164 parser.add_option("--with-etw",
 165     action="store_true",
 166     dest="with_etw",
 167     help="Build with ETW (default is true on Windows)")
 168
 169 parser.add_option("--without-etw",
 170     action="store_true",
 171     dest="without_etw",
 172     help="Build without ETW")
 173
 174 # CHECKME does this still work with recent releases of V8?
 175 parser.add_option("--gdb",
 176     action="store_true",
 177     dest="gdb",
 178     help="add gdb support")
 179
 180 parser.add_option("--dest-cpu",
 181     action="store",
 182     dest="dest_cpu",
 183     help="CPU architecture to build for. Valid values are: arm, ia32, x64")
 184
 185 parser.add_option("--dest-os",
 186     action="store",
 187     dest="dest_os",
 188     help="Operating system to build for. Valid values are: "
 189          "win, mac, solaris, freebsd, linux")
 190
 191 parser.add_option("--no-ifaddrs",
 192     action="store_true",
 193     dest="no_ifaddrs",
 194     help="Use on deprecated SunOS systems that do not support ifaddrs.h")
 195
 196 parser.add_option("--with-arm-float-abi",
 197     action="store",
 198     dest="arm_float_abi",
 199     help="Specifies which floating-point ABI to use. Valid values are: "
 200          "soft, softfp, hard")
 201
 202 parser.add_option("--ninja",
 203     action="store_true",
 204     dest="use_ninja",
 205     help="Generate files for the ninja build system")
 206
 207 # Using --unsafe-optimizations voids your warranty.
 208 parser.add_option("--unsafe-optimizations",
 209     action="store_true",
 210     dest="unsafe_optimizations",
 211     help=optparse.SUPPRESS_HELP)
 212
 213 (options, args) = parser.parse_args()
 214
 215
 216 def b(value):
 217   """Returns the string 'true' if value is truthy, 'false' otherwise."""
 218   if value:
 219     return 'true'
 220   else:
 221     return 'false'
 222
 223
 224 def pkg_config(pkg):
 225   cmd = os.popen('pkg-config --libs %s' % pkg, 'r')
 226   libs = cmd.readline().strip()
 227   ret = cmd.close()
 228   if (ret): return None
 229
 230   cmd = os.popen('pkg-config --cflags %s' % pkg, 'r')
 231   cflags = cmd.readline().strip()
 232   ret = cmd.close()
 233   if (ret): return None
 234
 235   return (libs, cflags)
 236
 237
 238 def cc_macros():
 239   """Checks predefined macros using the CC command."""
 240
 241   try:
 242     p = subprocess.Popen(shlex.split(CC) + ['-dM', '-E', '-'],
 243                          stdin=subprocess.PIPE,
 244                          stdout=subprocess.PIPE,
 245                          stderr=subprocess.PIPE)
 246   except OSError:
 247     print '''Node.js configure error: No acceptable C compiler found!
 248
 249         Please make sure you have a C compiler installed on your system and/or
 250         consider adjusting the CC environment variable if you installed
 251         it in a non-standard prefix.
 252         '''
 253     sys.exit()
 254
 255   p.stdin.write('\n')
 256   out = p.communicate()[0]
 257
 258   out = str(out).split('\n')
 259
 260   k = {}
 261   for line in out:
 262     lst = shlex.split(line)
 263     if len(lst) > 2:
 264       key = lst[1]
 265       val = lst[2]
 266       k[key] = val
 267   return k
 268
 269
 270 def is_arch_armv7():
 271   """Check for ARMv7 instructions"""
 272   cc_macros_cache = cc_macros()
 273   return ('__ARM_ARCH_7__' in cc_macros_cache or
 274           '__ARM_ARCH_7A__' in cc_macros_cache or
 275           '__ARM_ARCH_7R__' in cc_macros_cache or
 276           '__ARM_ARCH_7M__' in cc_macros_cache)
 277
 278
 279 def arm_hard_float_abi():
 280   """Check for hardfloat or softfloat eabi on ARM"""
 281   # GCC versions 4.6 and above define __ARM_PCS or __ARM_PCS_VFP to specify
 282   # the Floating Point ABI used (PCS stands for Procedure Call Standard).
 283   # We use these as well as a couple of other defines to statically determine
 284   # what FP ABI used.
 285   # GCC versions 4.4 and below don't support hard-fp.
 286   # GCC versions 4.5 may support hard-fp without defining __ARM_PCS or
 287   # __ARM_PCS_VFP.
 288
 289   if compiler_version() >= (4, 6, 0):
 290     return '__ARM_PCS_VFP' in cc_macros()
 291   elif compiler_version() < (4, 5, 0):
 292     return False
 293   elif '__ARM_PCS_VFP' in cc_macros():
 294     return True
 295   elif ('__ARM_PCS' in cc_macros() or
 296         '__SOFTFP' in cc_macros() or
 297         not '__VFP_FP__' in cc_macros()):
 298     return False
 299   else:
 300     print '''Node.js configure error: Your version of GCC does not report
 301       the Floating-Point ABI to compile for your hardware
 302
 303       Please manually specify which floating-point ABI to use with the
 304       --with-arm-float-abi option.
 305       '''
 306     sys.exit()
 307
 308
 309 def host_arch_cc():
 310   """Host architecture check using the CC command."""
 311
 312   k = cc_macros()
 313
 314   matchup = {
 315     '__x86_64__'  : 'x64',
 316     '__i386__'    : 'ia32',
 317     '__arm__'     : 'arm',
 318   }
 319
 320   rtn = 'ia32' # default
 321
 322   for i in matchup:
 323     if i in k and k[i] != '0':
 324       rtn = matchup[i]
 325       break
 326
 327   return rtn
 328
 329
 330 def host_arch_win():
 331   """Host architecture check using environ vars (better way to do this?)"""
 332
 333   arch = os.environ.get('PROCESSOR_ARCHITECTURE', 'x86')
 334
 335   matchup = {
 336     'AMD64'  : 'x64',
 337     'x86'    : 'ia32',
 338     'arm'    : 'arm',
 339   }
 340
 341   return matchup.get(arch, 'ia32')
 342
 343
 344 def compiler_version():
 345   try:
 346     proc = subprocess.Popen(shlex.split(CC) + ['--version'], stdout=subprocess.PIPE)
 347   except WindowsError:
 348     return (0, False)
 349
 350   is_clang = 'clang' in proc.communicate()[0].split('\n')[0]
 351
 352   proc = subprocess.Popen(shlex.split(CC) + ['-dumpversion'], stdout=subprocess.PIPE)
 353   version = tuple(map(int, proc.communicate()[0].split('.')))
 354
 355   return (version, is_clang)
 356
 357
 358 def configure_arm(o):
 359   # V8 on ARM requires that armv7 is set. CPU Model detected by
 360   # the presence of __ARM_ARCH_7__ and the like defines in compiler
 361   if options.arm_float_abi:
 362     hard_float = options.arm_float_abi == 'hard'
 363   else:
 364     hard_float = arm_hard_float_abi()
 365   o['variables']['v8_use_arm_eabi_hardfloat'] = b(hard_float)
 366
 367   armv7 = is_arch_armv7()
 368   if armv7:
 369     # CHECKME VFPv3 implies ARMv7+ but is the reverse true as well?
 370     o['variables']['arm_fpu'] = 'vfpv3'
 371     o['variables']['arm_neon'] = 0
 372   o['variables']['armv7'] = int(armv7)
 373
 374
 375 def configure_node(o):
 376   o['variables']['v8_enable_gdbjit'] = 1 if options.gdb else 0
 377   o['variables']['v8_no_strict_aliasing'] = 1 # work around compiler bugs
 378   o['variables']['node_prefix'] = os.path.expanduser(options.prefix or '')
 379   o['variables']['node_install_npm'] = b(not options.without_npm)
 380   o['variables']['node_unsafe_optimizations'] = (
 381     1 if options.unsafe_optimizations else 0)
 382   o['default_configuration'] = 'Debug' if options.debug else 'Release'
 383
 384   host_arch = host_arch_win() if os.name == 'nt' else host_arch_cc()
 385   target_arch = options.dest_cpu or host_arch
 386   o['variables']['host_arch'] = host_arch
 387   o['variables']['target_arch'] = target_arch
 388
 389   if target_arch == 'arm':
 390     configure_arm(o)
 391
 392   cc_version, is_clang = compiler_version()
 393   o['variables']['clang'] = 1 if is_clang else 0
 394
 395   if not is_clang and cc_version != 0:
 396     o['variables']['gcc_version'] = 10 * cc_version[0] + cc_version[1]
 397
 398   # clang has always supported -fvisibility=hidden, right?
 399   if not is_clang and cc_version < (4,0,0):
 400     o['variables']['visibility'] = ''
 401
 402   # By default, enable DTrace on SunOS systems. Don't allow it on other
 403   # systems, since it won't work.  (The MacOS build process is different than
 404   # SunOS, and we haven't implemented it.)
 405   if sys.platform.startswith('sunos'):
 406     o['variables']['node_use_dtrace'] = b(not options.without_dtrace)
 407   elif sys.platform.startswith('linux'):
 408     o['variables']['node_use_dtrace'] = 'false'
 409     o['variables']['node_use_systemtap'] = b(options.with_dtrace)
 410     if options.systemtap_includes:
 411       o['include_dirs'] += [options.systemtap_includes]
 412   elif b(options.with_dtrace) == 'true':
 413     raise Exception(
 414        'DTrace is currently only supported on SunOS or Linux systems.')
 415   else:
 416     o['variables']['node_use_dtrace'] = 'false'
 417     o['variables']['node_use_systemtap'] = 'false'
 418
 419   if options.no_ifaddrs:
 420     o['defines'] += ['SUNOS_NO_IFADDRS']
 421
 422   # By default, enable ETW on Windows.
 423   if sys.platform.startswith('win32'):
 424     o['variables']['node_use_etw'] = b(not options.without_etw);
 425   elif b(options.with_etw) == 'true':
 426     raise Exception('ETW is only supported on Windows.')
 427   else:
 428     o['variables']['node_use_etw'] = 'false'
 429
 430
 431 def configure_libz(o):
 432   o['variables']['node_shared_zlib'] = b(options.shared_zlib)
 433
 434   # assume shared_zlib if one of these is set?
 435   if options.shared_zlib_libpath:
 436     o['libraries'] += ['-L%s' % options.shared_zlib_libpath]
 437   if options.shared_zlib_libname:
 438     o['libraries'] += ['-l%s' % options.shared_zlib_libname]
 439   elif options.shared_zlib:
 440     o['libraries'] += ['-lz']
 441   if options.shared_zlib_includes:
 442     o['include_dirs'] += [options.shared_zlib_includes]
 443
 444
 445 def configure_http_parser(o):
 446     o['variables']['node_shared_http_parser'] = b(options.shared_http_parser)
 447
 448     # assume shared http_parser if one of these is set?
 449     if options.shared_http_parser_libpath:
 450         o['libraries'] += ['-L%s' % options.shared_http_parser_libpath]
 451     if options.shared_http_parser_libname:
 452         o['libraries'] += ['-l%s' % options.shared_http_parser_libname]
 453     elif options.shared_http_parser:
 454         o['libraries'] += ['-lhttp_parser']
 455     if options.shared_http_parser_includes:
 456         o['include_dirs'] += [options.shared_http_parser_includes]
 457
 458
 459 def configure_v8(o):
 460   o['variables']['v8_use_snapshot'] = b(not options.without_snapshot)
 461   o['variables']['node_shared_v8'] = b(options.shared_v8)
 462
 463   # assume shared_v8 if one of these is set?
 464   if options.shared_v8_libpath:
 465     o['libraries'] += ['-L%s' % options.shared_v8_libpath]
 466   if options.shared_v8_libname:
 467     o['libraries'] += ['-l%s' % options.shared_v8_libname]
 468   elif options.shared_v8:
 469     o['libraries'] += ['-lv8']
 470   if options.shared_v8_includes:
 471     o['include_dirs'] += [options.shared_v8_includes]
 472
 473
 474 def configure_openssl(o):
 475   o['variables']['node_use_openssl'] = b(not options.without_ssl)
 476   o['variables']['node_shared_openssl'] = b(options.shared_openssl)
 477
 478   if options.without_ssl:
 479     return
 480
 481   if options.no_ssl2:
 482     o['defines'] += ['OPENSSL_NO_SSL2=1']
 483
 484   if options.shared_openssl:
 485     (libs, cflags) = pkg_config('openssl') or ('-lssl -lcrypto', '')
 486
 487     if options.shared_openssl_libpath:
 488       o['libraries'] += ['-L%s' % options.shared_openssl_libpath]
 489
 490     if options.shared_openssl_libname:
 491       libnames = options.shared_openssl_libname.split(',')
 492       o['libraries'] += ['-l%s' % s for s in libnames]
 493     else:
 494       o['libraries'] += libs.split()
 495
 496     if options.shared_openssl_includes:
 497       o['include_dirs'] += [options.shared_openssl_includes]
 498     else:
 499       o['cflags'] += cflags.split()
 500
 501
 502 output = {
 503   'variables': {},
 504   'include_dirs': [],
 505   'libraries': [],
 506   'defines': [],
 507   'cflags': [],
 508 }
 509
 510 configure_node(output)
 511 configure_libz(output)
 512 configure_http_parser(output)
 513 configure_v8(output)
 514 configure_openssl(output)
 515
 516 # variables should be a root level element,
 517 # move everything else to target_defaults
 518 variables = output['variables']
 519 del output['variables']
 520 output = {
 521   'variables': variables,
 522   'target_defaults': output
 523 }
 524 pprint.pprint(output, indent=2)
 525
 526 def write(filename, data):
 527   filename = os.path.join(root_dir, filename)
 528   print "creating ", filename
 529   f = open(filename, 'w+')
 530   f.write(data)
 531
 532 write('config.gypi', "# Do not edit. Generated by the configure script.\n" +
 533   pprint.pformat(output, indent=2) + "\n")
 534
 535 config = {
 536   'BUILDTYPE': 'Debug' if options.debug else 'Release',
 537   'USE_NINJA': str(int(options.use_ninja or 0)),
 538 }
 539 config = '\n'.join(map('='.join, config.iteritems())) + '\n'
 540
 541 write('config.mk',
 542       '# Do not edit. Generated by the configure script.\n' + config)
 543
 544 if options.use_ninja:
 545   gyp_args = ['-f', 'ninja']
 546 elif os.name == 'nt':
 547   gyp_args = ['-f', 'msvs', '-G', 'msvs_version=auto']
 548 elif options.dest_os:
 549   gyp_args = ['-f', 'make-' + options.dest_os]
 550 else:
 551   gyp_args = ['-f', 'make']
 552
 553 subprocess.call([sys.executable, 'tools/gyp_node'] + gyp_args)