configure

   1 #!/usr/bin/env python
   2 import optparse
   3 import os
   4 import pprint
   5 import re
   6 import subprocess
   7 import sys
   8
   9 CC = os.environ.get('CC', 'cc')
  10
  11 root_dir = os.path.dirname(__file__)
  12 sys.path.insert(0, os.path.join(root_dir, 'deps', 'v8', 'tools'))
  13
  14 # parse our options
  15 parser = optparse.OptionParser()
  16
  17 parser.add_option("--debug",
  18     action="store_true",
  19     dest="debug",
  20     help="Also build debug build")
  21
  22 parser.add_option("--prefix",
  23     action="store",
  24     dest="prefix",
  25     help="Select the install prefix (defaults to /usr/local)")
  26
  27 parser.add_option("--without-npm",
  28     action="store_true",
  29     dest="without_npm",
  30     help="Don\'t install the bundled npm package manager")
  31
  32 parser.add_option("--without-waf",
  33     action="store_true",
  34     dest="without_waf",
  35     help="Don\'t install node-waf")
  36
  37 parser.add_option("--without-ssl",
  38     action="store_true",
  39     dest="without_ssl",
  40     help="Build without SSL")
  41
  42 parser.add_option("--without-snapshot",
  43     action="store_true",
  44     dest="without_snapshot",
  45     help="Build without snapshotting V8 libraries. You might want to set"
  46          " this for cross-compiling. [Default: False]")
  47
  48 parser.add_option("--shared-v8",
  49     action="store_true",
  50     dest="shared_v8",
  51     help="Link to a shared V8 DLL instead of static linking")
  52
  53 parser.add_option("--shared-v8-includes",
  54     action="store",
  55     dest="shared_v8_includes",
  56     help="Directory containing V8 header files")
  57
  58 parser.add_option("--shared-v8-libpath",
  59     action="store",
  60     dest="shared_v8_libpath",
  61     help="A directory to search for the shared V8 DLL")
  62
  63 parser.add_option("--shared-v8-libname",
  64     action="store",
  65     dest="shared_v8_libname",
  66     help="Alternative lib name to link to (default: 'v8')")
  67
  68 parser.add_option("--openssl-use-sys",
  69     action="store_true",
  70     dest="openssl_use_sys",
  71     help="Use the system OpenSSL instead of one included with Node")
  72
  73 parser.add_option("--openssl-includes",
  74     action="store",
  75     dest="openssl_includes",
  76     help="A directory to search for the OpenSSL includes")
  77
  78 parser.add_option("--openssl-libpath",
  79     action="store",
  80     dest="openssl_libpath",
  81     help="A directory to search for the OpenSSL libraries")
  82
  83 parser.add_option("--no-ssl2",
  84     action="store_true",
  85     dest="no_ssl2",
  86     help="Disable OpenSSL v2")
  87
  88 parser.add_option("--shared-zlib",
  89     action="store_true",
  90     dest="shared_zlib",
  91     help="Link to a shared zlib DLL instead of static linking")
  92
  93 parser.add_option("--shared-zlib-includes",
  94     action="store",
  95     dest="shared_zlib_includes",
  96     help="Directory containing zlib header files")
  97
  98 parser.add_option("--shared-zlib-libpath",
  99     action="store",
 100     dest="shared_zlib_libpath",
 101     help="A directory to search for the shared zlib DLL")
 102
 103 parser.add_option("--shared-zlib-libname",
 104     action="store",
 105     dest="shared_zlib_libname",
 106     help="Alternative lib name to link to (default: 'z')")
 107
 108 parser.add_option("--with-dtrace",
 109     action="store_true",
 110     dest="with_dtrace",
 111     help="Build with DTrace (default is true on supported systems)")
 112
 113 parser.add_option("--without-dtrace",
 114     action="store_true",
 115     dest="without_dtrace",
 116     help="Build without DTrace")
 117
 118 # CHECKME does this still work with recent releases of V8?
 119 parser.add_option("--gdb",
 120     action="store_true",
 121     dest="gdb",
 122     help="add gdb support")
 123
 124 parser.add_option("--dest-cpu",
 125     action="store",
 126     dest="dest_cpu",
 127     help="CPU architecture to build for. Valid values are: arm, ia32, x64")
 128
 129 (options, args) = parser.parse_args()
 130
 131
 132 def b(value):
 133   """Returns the string 'true' if value is truthy, 'false' otherwise."""
 134   if value:
 135     return 'true'
 136   else:
 137     return 'false'
 138
 139
 140 def pkg_config(pkg):
 141   cmd = os.popen('pkg-config --libs %s' % pkg, 'r')
 142   libs = cmd.readline().strip()
 143   ret = cmd.close()
 144   if (ret): return None
 145
 146   cmd = os.popen('pkg-config --cflags %s' % pkg, 'r')
 147   cflags = cmd.readline().strip()
 148   ret = cmd.close()
 149   if (ret): return None
 150
 151   return (libs, cflags)
 152
 153
 154 def host_arch_cc():
 155   """Host architecture check using the CC command."""
 156
 157   p = subprocess.Popen(CC.split() + ['-dM', '-E', '-'],
 158                        stdin=subprocess.PIPE,
 159                        stdout=subprocess.PIPE,
 160                        stderr=subprocess.PIPE)
 161   p.stdin.write('\n')
 162   out = p.communicate()[0]
 163
 164   out = str(out).split('\n')
 165
 166   k = {}
 167   for line in out:
 168     import shlex
 169     lst = shlex.split(line)
 170     if len(lst) > 2:
 171       key = lst[1]
 172       val = lst[2]
 173       k[key] = val
 174
 175   matchup = {
 176     '__x86_64__'  : 'x64',
 177     '__i386__'    : 'ia32',
 178     '__arm__'     : 'arm',
 179   }
 180
 181   rtn = 'ia32' # default
 182
 183   for i in matchup:
 184     if i in k and k[i] != '0':
 185       rtn = matchup[i]
 186       break
 187
 188   return rtn
 189
 190
 191 def host_arch_win():
 192   """Host architecture check using environ vars (better way to do this?)"""
 193
 194   arch = os.environ.get('PROCESSOR_ARCHITECTURE', 'x86')
 195
 196   matchup = {
 197     'AMD64'  : 'x64',
 198     'x86'    : 'ia32',
 199     'arm'    : 'arm',
 200   }
 201
 202   return matchup.get(arch, 'ia32')
 203
 204
 205 def host_arch():
 206   """Host architecture. One of arm, ia32 or x64."""
 207   if os.name == 'nt':
 208     arch = host_arch_win()
 209   else:
 210     arch = host_arch_cc()
 211   return arch
 212
 213
 214 def target_arch():
 215   return host_arch()
 216
 217
 218 def gcc_version():
 219   try:
 220     proc = subprocess.Popen([CC, '-v'], stderr=subprocess.PIPE)
 221   except OSError:
 222     return None
 223   # TODO parse clang output
 224   version = proc.communicate()[1].split('\n')[-2]
 225   match = re.match('gcc version (\d+)\.(\d+)\.(\d+)', version)
 226   if not match: return None
 227   return ['LLVM' in version] + map(int, match.groups())
 228
 229
 230 def configure_node(o):
 231   # TODO add gdb
 232   o['variables']['node_prefix'] = options.prefix if options.prefix else ''
 233   o['variables']['node_install_npm'] = b(not options.without_npm)
 234   o['variables']['node_install_waf'] = b(not options.without_waf)
 235   o['variables']['host_arch'] = host_arch()
 236   o['variables']['target_arch'] = options.dest_cpu or target_arch()
 237   o['default_configuration'] = 'Debug' if options.debug else 'Release'
 238
 239   # turn off strict aliasing if gcc < 4.6.0 unless it's llvm-gcc
 240   # see http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45883
 241   # see http://code.google.com/p/v8/issues/detail?id=884
 242   o['variables']['strict_aliasing'] = b(
 243     'clang' in CC or gcc_version() >= [False, 4, 6, 0])
 244
 245   # clang has always supported -fvisibility=hidden, right?
 246   if 'clang' not in CC and gcc_version() < [False, 4, 0, 0]:
 247     o['variables']['visibility'] = ''
 248
 249   # By default, enable DTrace on SunOS systems. Don't allow it on other
 250   # systems, since it won't work.  (The MacOS build process is different than
 251   # SunOS, and we haven't implemented it.)
 252   if sys.platform.startswith('sunos'):
 253     o['variables']['node_use_dtrace'] = b(not options.without_dtrace);
 254   elif b(options.with_dtrace) == 'true':
 255     raise Exception('DTrace is currently only supported on SunOS systems.')
 256   else:
 257     o['variables']['node_use_dtrace'] = 'false'
 258
 259
 260 def configure_libz(o):
 261   o['variables']['node_shared_zlib'] = b(options.shared_zlib)
 262
 263   # assume shared_zlib if one of these is set?
 264   if options.shared_zlib_libpath:
 265     o['libraries'] += ['-L%s' % options.shared_zlib_libpath]
 266   if options.shared_zlib_libname:
 267     o['libraries'] += ['-l%s' % options.shared_zlib_libname]
 268   elif options.shared_zlib:
 269     o['libraries'] += ['-lz']
 270   if options.shared_zlib_includes:
 271     o['include_dirs'] += [options.shared_zlib_includes]
 272
 273
 274 def configure_v8(o):
 275   o['variables']['v8_use_snapshot'] = b(not options.without_snapshot)
 276   o['variables']['node_shared_v8'] = b(options.shared_v8)
 277
 278   # assume shared_v8 if one of these is set?
 279   if options.shared_v8_libpath:
 280     o['libraries'] += ['-L%s' % options.shared_v8_libpath]
 281   if options.shared_v8_libname:
 282     o['libraries'] += ['-l%s' % options.shared_v8_libname]
 283   elif options.shared_v8:
 284     o['libraries'] += ['-lv8']
 285   if options.shared_v8_includes:
 286     o['include_dirs'] += [options.shared_v8_includes]
 287     o['variables']['node_shared_v8_includes'] = options.shared_v8_includes
 288
 289
 290 def configure_openssl(o):
 291   o['variables']['node_use_openssl'] = b(not options.without_ssl)
 292
 293   if options.without_ssl:
 294     return
 295
 296   if options.no_ssl2:
 297     o['defines'] += ['OPENSSL_NO_SSL2=1']
 298
 299   if not options.openssl_use_sys:
 300     o['variables']['node_use_system_openssl'] = b(False)
 301   else:
 302     out = pkg_config('openssl')
 303     (libs, cflags) = out if out else ('', '')
 304
 305     if options.openssl_libpath:
 306       o['libraries'] += ['-L%s' % options.openssl_libpath, '-lssl', '-lcrypto']
 307     else:
 308       o['libraries'] += libs.split()
 309
 310     if options.openssl_includes:
 311       o['include_dirs'] += [options.openssl_includes]
 312     else:
 313       o['cflags'] += cflags.split()
 314
 315     o['variables']['node_use_system_openssl'] = b(
 316       libs or cflags or options.openssl_libpath or options.openssl_includes)
 317
 318
 319 output = {
 320   'variables': {},
 321   'include_dirs': [],
 322   'libraries': [],
 323   'defines': [],
 324   'cflags': [],
 325 }
 326
 327 configure_node(output)
 328 configure_libz(output)
 329 configure_v8(output)
 330 configure_openssl(output)
 331
 332 # variables should be a root level element,
 333 # move everything else to target_defaults
 334 variables = output['variables']
 335 del output['variables']
 336 output = {
 337   'variables': variables,
 338   'target_defaults': output
 339 }
 340 pprint.pprint(output, indent=2)
 341
 342 def write(filename, data):
 343   filename = os.path.join(root_dir, filename)
 344   print "creating ", filename
 345   f = open(filename, 'w+')
 346   f.write(data)
 347
 348 write('config.gypi', "# Do not edit. Generated by the configure script.\n" +
 349   pprint.pformat(output, indent=2) + "\n")
 350
 351 write('config.mk', "# Do not edit. Generated by the configure script.\n" +
 352   ("BUILDTYPE=%s\n" % ('Debug' if options.debug else 'Release')))
 353
 354 if os.name == 'nt':
 355   subprocess.call(['python', 'tools/gyp_node', '-f', 'msvs',
 356                                                '-G', 'msvs_version=2010'])
 357 else:
 358   subprocess.call(['tools/gyp_node', '-f', 'make'])