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",
  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 (experimental)")
 112
 113 # CHECKME does this still work with recent releases of V8?
 114 parser.add_option("--gdb",
 115     action="store_true",
 116     dest="gdb",
 117     help="add gdb support")
 118
 119 parser.add_option("--dest-cpu",
 120     action="store",
 121     dest="dest_cpu",
 122     help="CPU architecture to build for. Valid values are: arm, ia32, x64")
 123
 124 (options, args) = parser.parse_args()
 125
 126
 127 def b(value):
 128   """Returns the string 'true' if value is truthy, 'false' otherwise."""
 129   if value:
 130     return 'true'
 131   else:
 132     return 'false'
 133
 134
 135 def pkg_config(pkg):
 136   cmd = os.popen('pkg-config --libs %s' % pkg, 'r')
 137   libs = cmd.readline().strip()
 138   ret = cmd.close()
 139   if (ret): return None
 140
 141   cmd = os.popen('pkg-config --cflags %s' % pkg, 'r')
 142   cflags = cmd.readline().strip()
 143   ret = cmd.close()
 144   if (ret): return None
 145
 146   return (libs, cflags)
 147
 148
 149 def host_arch_cc():
 150   """Host architecture check using the CC command."""
 151
 152   p = subprocess.Popen([CC, '-dM', '-E', '-'],
 153                        stdin=subprocess.PIPE,
 154                        stdout=subprocess.PIPE,
 155                        stderr=subprocess.PIPE)
 156   p.stdin.write('\n')
 157   out = p.communicate()[0]
 158
 159   out = str(out).split('\n')
 160
 161   k = {}
 162   for line in out:
 163     import shlex
 164     lst = shlex.split(line)
 165     if len(lst) > 2:
 166       key = lst[1]
 167       val = lst[2]
 168       k[key] = val
 169
 170   matchup = {
 171     '__x86_64__'  : 'x64',
 172     '__i386__'    : 'ia32',
 173     '__arm__'     : 'arm',
 174   }
 175
 176   rtn = 'ia32' # default
 177
 178   for i in matchup:
 179     if i in k and k[i] != '0':
 180       rtn = matchup[i]
 181       break
 182
 183   return rtn
 184
 185
 186 def host_arch_win():
 187   """Host architecture check using environ vars (better way to do this?)"""
 188
 189   arch = os.environ.get('PROCESSOR_ARCHITECTURE', 'x86')
 190
 191   matchup = {
 192     'AMD64'  : 'x64',
 193     'x86'    : 'ia32',
 194     'arm'    : 'arm',
 195   }
 196
 197   return matchup.get(arch, 'ia32')
 198
 199
 200 def host_arch():
 201   """Host architecture. One of arm, ia32 or x64."""
 202   if os.name == 'nt':
 203     arch = host_arch_win()
 204   else:
 205     arch = host_arch_cc()
 206   return arch
 207
 208
 209 def target_arch():
 210   return host_arch()
 211
 212
 213 def gcc_version():
 214   try:
 215     proc = subprocess.Popen([CC, '-v'], stderr=subprocess.PIPE)
 216   except OSError:
 217     return None
 218   # TODO parse clang output
 219   version = proc.communicate()[1].split('\n')[-2]
 220   match = re.match('gcc version (\d+)\.(\d+)\.(\d+)', version)
 221   if not match: return None
 222   return ['LLVM' in version] + map(int, match.groups())
 223
 224
 225 def configure_node(o):
 226   # TODO add gdb
 227   o['variables']['node_prefix'] = options.prefix if options.prefix else ''
 228   o['variables']['node_use_dtrace'] = b(options.with_dtrace)
 229   o['variables']['node_install_npm'] = b(not options.without_npm)
 230   o['variables']['node_install_waf'] = b(not options.without_waf)
 231   o['variables']['host_arch'] = host_arch()
 232   o['variables']['target_arch'] = options.dest_cpu or target_arch()
 233   o['default_configuration'] = 'Debug' if options.debug else 'Release'
 234
 235   # turn off strict aliasing if gcc < 4.6.0 unless it's llvm-gcc
 236   # see http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45883
 237   # see http://code.google.com/p/v8/issues/detail?id=884
 238   o['variables']['strict_aliasing'] = b(
 239     'clang' in CC or gcc_version() >= [False, 4, 6, 0])
 240
 241   # clang has always supported -fvisibility=hidden, right?
 242   if 'clang' not in CC and gcc_version() < [False, 4, 0, 0]:
 243     o['variables']['visibility'] = ''
 244
 245
 246 def configure_libz(o):
 247   o['variables']['node_shared_zlib'] = b(options.shared_zlib)
 248
 249   # assume shared_zlib if one of these is set?
 250   if options.shared_zlib_libpath:
 251     o['libraries'] += ['-L%s' % options.shared_zlib_libpath]
 252   if options.shared_zlib_libname:
 253     o['libraries'] += ['-l%s' % options.shared_zlib_libname]
 254   elif options.shared_zlib:
 255     o['libraries'] += ['-lz']
 256   if options.shared_zlib_includes:
 257     o['include_dirs'] += [options.shared_zlib_includes]
 258
 259
 260 def configure_v8(o):
 261   o['variables']['v8_use_snapshot'] = b(not options.without_snapshot)
 262   o['variables']['node_shared_v8'] = b(options.shared_v8)
 263
 264   # assume shared_v8 if one of these is set?
 265   if options.shared_v8_libpath:
 266     o['libraries'] += ['-L%s' % options.shared_v8_libpath]
 267   if options.shared_v8_libname:
 268     o['libraries'] += ['-l%s' % options.shared_v8_libname]
 269   elif options.shared_v8:
 270     o['libraries'] += ['-lv8']
 271   if options.shared_v8_includes:
 272     o['include_dirs'] += [options.shared_v8_includes]
 273     o['variables']['node_shared_v8_includes'] = options.shared_v8_includes
 274
 275
 276 def configure_openssl(o):
 277   o['variables']['node_use_openssl'] = b(not options.without_ssl)
 278
 279   if options.without_ssl:
 280     return
 281
 282   if options.no_ssl2:
 283     o['defines'] += ['OPENSSL_NO_SSL2=1']
 284
 285   if not options.openssl_use_sys:
 286     o['variables']['node_use_system_openssl'] = b(False)
 287   else:
 288     out = pkg_config('openssl')
 289     (libs, cflags) = out if out else ('', '')
 290
 291     if options.openssl_libpath:
 292       o['libraries'] += ['-L%s' % options.openssl_libpath, '-lssl', '-lcrypto']
 293     else:
 294       o['libraries'] += libs.split()
 295
 296     if options.openssl_includes:
 297       o['include_dirs'] += [options.openssl_includes]
 298     else:
 299       o['cflags'] += cflags.split()
 300
 301     o['variables']['node_use_system_openssl'] = b(
 302       libs or cflags or options.openssl_libpath or options.openssl_includes)
 303
 304
 305 output = {
 306   'variables': {},
 307   'include_dirs': [],
 308   'libraries': [],
 309   'defines': [],
 310   'cflags': [],
 311 }
 312
 313 configure_node(output)
 314 configure_libz(output)
 315 configure_v8(output)
 316 configure_openssl(output)
 317
 318 # variables should be a root level element,
 319 # move everything else to target_defaults
 320 variables = output['variables']
 321 del output['variables']
 322 output = {
 323   'variables': variables,
 324   'target_defaults': output
 325 }
 326 pprint.pprint(output, indent=2)
 327
 328 def write(filename, data):
 329   filename = os.path.join(root_dir, filename)
 330   print "creating ", filename
 331   with open(filename, 'w+') as f:
 332     f.write(data)
 333
 334 write('config.gypi', "# Do not edit. Generated by the configure script.\n" +
 335   pprint.pformat(output, indent=2))
 336
 337 write('config.mk', "# Do not edit. Generated by the configure script.\n" +
 338   ("BUILDTYPE=%s\n" % ('Debug' if options.debug else 'Release')))
 339
 340 if os.name == 'nt':
 341   subprocess.call(['python', 'tools/gyp_node', '-f', 'msvs',
 342                                                '-G', 'msvs_version=2010'])
 343 else:
 344   subprocess.call(['tools/gyp_node', '-f', 'make'])