o3d/site_scons/site_tools/naclsdk.py - chromium/src - Git at Google

 #!/usr/bin/python2.4
 # Copyright 2009, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 # copyright notice, this list of conditions and the following disclaimer
 # in the documentation and/or other materials provided with the
 # distribution.
 #     * Neither the name of Google Inc. nor the names of its
 # contributors may be used to endorse or promote products derived from
 # this software without specific prior written permission.
 #
 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 """Nacl SDK tool SCons."""

 import __builtin__
 import os
 import sys
 import SCons.Script
 import subprocess
 import sync_tgz


 NACL_PLATFORM_DIR_MAP = {
     'win32': 'windows',
     'cygwin': 'windows',
     'posix': 'linux',
     'linux': 'linux',
     'linux2': 'linux',
     'darwin': 'mac',
 }


 def _GetNaclSdkRoot(env, sdk_mode):
   """Return the path to the sdk.

   Args:
     env: The SCons environment in question.
     sdk_mode: A string indicating which location to select the tools from.
   Returns:
     The path to the sdk.
   """
   if sdk_mode == 'local':
     if env['PLATFORM'] in ['win32', 'cygwin']:
       # Try to use cygpath under the assumption we are running thru cygwin.
       # If this is not the case, then 'local' doesn't really make any sense,
       # so then we should complain.
       try:
         path = subprocess.Popen(
             ['cygpath', '-m', '/usr/local/nacl-sdk'],
             env={'PATH': os.environ['PRESCONS_PATH']}, shell=True,
             stdout=subprocess.PIPE).communicate()[0].replace('\n', '')
       except WindowsError:
         raise NotImplementedError(
             'Not able to decide where /usr/local/nacl-sdk is on this platform,'
             'use naclsdk_mode=custom:...')
       return path
     else:
       return '/usr/local/nacl-sdk'

   elif sdk_mode == 'download':
     return ('$MAIN_DIR/../third_party/nacl_sdk/' +
             NACL_PLATFORM_DIR_MAP[env['PLATFORM']] + '/sdk/nacl-sdk')

   elif sdk_mode.startswith('custom:'):
     return os.path.abspath(sdk_mode[len('custom:'):])

   else:
     assert 0


 def _DownloadSdk(env):
   """Download and untar the latest sdk.

   Args:
     env: SCons environment in question.
   """

   # Only try to download once.
   try:
     if __builtin__.nacl_sdk_downloaded: return
   except AttributeError:
     __builtin__.nacl_sdk_downloaded = True

   # Get path to extract to.
   target = env.subst('$MAIN_DIR/../third_party/nacl_sdk/' +
                      NACL_PLATFORM_DIR_MAP[env['PLATFORM']])

   # Set NATIVE_CLIENT_SDK_PLATFORM before substitution.
   env['NATIVE_CLIENT_SDK_PLATFORM'] = NACL_PLATFORM_DIR_MAP[env['PLATFORM']]

   # Allow sdk selection function to be used instead.
   if env.get('NATIVE_CLIENT_SDK_SOURCE'):
     url = env['NATIVE_CLIENT_SDK_SOURCE'](env)
   else:
     # Pick download url.
     url = [
         env.subst(env.get(
             'NATIVE_CLIENT_SDK_URL',
             'http://nativeclient.googlecode.com/svn/data/sdk_tarballs/'
             'naclsdk_${NATIVE_CLIENT_SDK_PLATFORM}.tgz')),
         env.get('NATIVE_CLIENT_SDK_USERNAME'),
         env.get('NATIVE_CLIENT_SDK_PASSWORD'),
     ]

   sync_tgz.SyncTgz(url[0], target, url[1], url[2])


 def _ValidateSdk(env, sdk_mode):
   """Check that the sdk is present.

   Args:
     env: SCons environment in question.
     sdk_mode: mode string indicating where to get the sdk from.
   """

   # Try to download SDK if in download mode and using download version.
   if env.GetOption('download') and sdk_mode == 'download':
     _DownloadSdk(env)

   # Check if stdio.h is present as a cheap check for the sdk.
   if not os.path.exists(env.subst('$NACL_SDK_ROOT/nacl/include/stdio.h')):
     sys.stderr.write('NativeClient SDK not present in %s\n'
                      'Run again with the --download flag\n'
                      'and the naclsdk_mode=download option,\n'
                      'or build the SDK yourself.\n' %
                      env.subst('$NACL_SDK_ROOT'))
     sys.exit(1)


 def generate(env):
   """SCons entry point for this tool.

   Args:
     env: The SCons environment in question.

   NOTE: SCons requires the use of this name, which fails lint.
   """

   # Add the download option.
   try:
     env.GetOption('download')
   except AttributeError:
     SCons.Script.AddOption('--download',
                            dest='download',
                            metavar='DOWNLOAD',
                            default=False,
                            action='store_true',
                            help='allow tools to download')

   # Pick default sdk source.
   default_mode = env.get('NATIVE_CLIENT_SDK_DEFAULT_MODE',
                          'custom:../third_party/nacl_sdk/' +
                          NACL_PLATFORM_DIR_MAP[env['PLATFORM']] +
                          '/sdk/nacl-sdk')

   # Get sdk mode (support sdk_mode for backward compatibility).
   sdk_mode = SCons.Script.ARGUMENTS.get('sdk_mode', default_mode)
   sdk_mode = SCons.Script.ARGUMENTS.get('naclsdk_mode', sdk_mode)

   # Decide where to get the SDK.
   env.Replace(NACL_SDK_ROOT=_GetNaclSdkRoot(env, sdk_mode))

   # Validate the sdk unless disabled from the command line.
   env.SetDefault(NACL_SDK_VALIDATE='1')
   if int(SCons.Script.ARGUMENTS.get('naclsdk_validate',
       env.subst('$NACL_SDK_VALIDATE'))):
     _ValidateSdk(env, sdk_mode)

   if env.subst('$NACL_SDK_ROOT_ONLY'): return

   # Invoke the various unix tools that the NativeClient SDK resembles.
   env.Tool('g++')
   env.Tool('gcc')
   env.Tool('gnulink')
   env.Tool('ar')
   env.Tool('as')

   env.Replace(
       HOST_PLATFORMS=['*'],  # NaCl builds on all platforms.

       COMPONENT_LINKFLAGS=['-Wl,-rpath-link,$COMPONENT_LIBRARY_DIR'],
       COMPONENT_LIBRARY_LINK_SUFFIXES=['.so', '.a'],
       COMPONENT_LIBRARY_DEBUG_SUFFIXES=[],

       # TODO: This is needed for now to work around unc paths.  Take this out
       # when unc paths are fixed.
       IMPLICIT_COMMAND_DEPENDENCIES=False,

       # Setup path to NativeClient tools.
       NACL_SDK_BIN='$NACL_SDK_ROOT/bin',
       NACL_SDK_INCLUDE='$NACL_SDK_ROOT/nacl/include',
       NACL_SDK_LIB='$NACL_SDK_ROOT/nacl/lib',

       # Replace the normal unix tools with the NaCl ones.
       CC='nacl-gcc',
       CXX='nacl-g++',
       AR='nacl-ar',
       AS='nacl-as',
       LINK='nacl-g++',  # use g++ for linking so we can handle c AND c++
       RANLIB='nacl-ranlib',

       # TODO: this could be .nexe and then all the .nexe stuff goes away?
       PROGSUFFIX=''  # Force PROGSUFFIX to '' on all platforms.
   )

   env.PrependENVPath('PATH', [env.subst('$NACL_SDK_BIN')])
   env.PrependENVPath('INCLUDE', [env.subst('$NACL_SDK_INCLUDE')])
   env.Prepend(LINKFLAGS='-L' + env.subst('$NACL_SDK_LIB'))

   env.Append(
       CCFLAGS=[
           '-fno-stack-protector',
           '-fno-builtin',
       ],
   )
	#!/usr/bin/python2.4
	# Copyright 2009, Google Inc.
	# All rights reserved.
	#
	# Redistribution and use in source and binary forms, with or without
	# modification, are permitted provided that the following conditions are
	# met:
	#
	# * Redistributions of source code must retain the above copyright
	# notice, this list of conditions and the following disclaimer.
	# * Redistributions in binary form must reproduce the above
	# copyright notice, this list of conditions and the following disclaimer
	# in the documentation and/or other materials provided with the
	# distribution.
	# * Neither the name of Google Inc. nor the names of its
	# contributors may be used to endorse or promote products derived from
	# this software without specific prior written permission.
	#
	# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
	# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
	# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
	# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

	"""Nacl SDK tool SCons."""

	import __builtin__
	import os
	import sys
	import SCons.Script
	import subprocess
	import sync_tgz


	NACL_PLATFORM_DIR_MAP = {
	'win32': 'windows',
	'cygwin': 'windows',
	'posix': 'linux',
	'linux': 'linux',
	'linux2': 'linux',
	'darwin': 'mac',
	}


	def _GetNaclSdkRoot(env, sdk_mode):
	"""Return the path to the sdk.

	Args:
	env: The SCons environment in question.
	sdk_mode: A string indicating which location to select the tools from.
	Returns:
	The path to the sdk.
	"""
	if sdk_mode == 'local':
	if env['PLATFORM'] in ['win32', 'cygwin']:
	# Try to use cygpath under the assumption we are running thru cygwin.
	# If this is not the case, then 'local' doesn't really make any sense,
	# so then we should complain.
	try:
	path = subprocess.Popen(
	['cygpath', '-m', '/usr/local/nacl-sdk'],
	env={'PATH': os.environ['PRESCONS_PATH']}, shell=True,
	stdout=subprocess.PIPE).communicate()[0].replace('\n', '')
	except WindowsError:
	raise NotImplementedError(
	'Not able to decide where /usr/local/nacl-sdk is on this platform,'
	'use naclsdk_mode=custom:...')
	return path
	else:
	return '/usr/local/nacl-sdk'

	elif sdk_mode == 'download':
	return ('$MAIN_DIR/../third_party/nacl_sdk/' +
	NACL_PLATFORM_DIR_MAP[env['PLATFORM']] + '/sdk/nacl-sdk')

	elif sdk_mode.startswith('custom:'):
	return os.path.abspath(sdk_mode[len('custom:'):])

	else:
	assert 0


	def _DownloadSdk(env):
	"""Download and untar the latest sdk.

	Args:
	env: SCons environment in question.
	"""

	# Only try to download once.
	try:
	if __builtin__.nacl_sdk_downloaded: return
	except AttributeError:
	__builtin__.nacl_sdk_downloaded = True

	# Get path to extract to.
	target = env.subst('$MAIN_DIR/../third_party/nacl_sdk/' +
	NACL_PLATFORM_DIR_MAP[env['PLATFORM']])

	# Set NATIVE_CLIENT_SDK_PLATFORM before substitution.
	env['NATIVE_CLIENT_SDK_PLATFORM'] = NACL_PLATFORM_DIR_MAP[env['PLATFORM']]

	# Allow sdk selection function to be used instead.
	if env.get('NATIVE_CLIENT_SDK_SOURCE'):
	url = env['NATIVE_CLIENT_SDK_SOURCE'](env)
	else:
	# Pick download url.
	url = [
	env.subst(env.get(
	'NATIVE_CLIENT_SDK_URL',
	'http://nativeclient.googlecode.com/svn/data/sdk_tarballs/'
	'naclsdk_${NATIVE_CLIENT_SDK_PLATFORM}.tgz')),
	env.get('NATIVE_CLIENT_SDK_USERNAME'),
	env.get('NATIVE_CLIENT_SDK_PASSWORD'),
	]

	sync_tgz.SyncTgz(url[0], target, url[1], url[2])


	def _ValidateSdk(env, sdk_mode):
	"""Check that the sdk is present.

	Args:
	env: SCons environment in question.
	sdk_mode: mode string indicating where to get the sdk from.
	"""

	# Try to download SDK if in download mode and using download version.
	if env.GetOption('download') and sdk_mode == 'download':
	_DownloadSdk(env)

	# Check if stdio.h is present as a cheap check for the sdk.
	if not os.path.exists(env.subst('$NACL_SDK_ROOT/nacl/include/stdio.h')):
	sys.stderr.write('NativeClient SDK not present in %s\n'
	'Run again with the --download flag\n'
	'and the naclsdk_mode=download option,\n'
	'or build the SDK yourself.\n' %
	env.subst('$NACL_SDK_ROOT'))
	sys.exit(1)


	def generate(env):
	"""SCons entry point for this tool.

	Args:
	env: The SCons environment in question.

	NOTE: SCons requires the use of this name, which fails lint.
	"""

	# Add the download option.
	try:
	env.GetOption('download')
	except AttributeError:
	SCons.Script.AddOption('--download',
	dest='download',
	metavar='DOWNLOAD',
	default=False,
	action='store_true',
	help='allow tools to download')

	# Pick default sdk source.
	default_mode = env.get('NATIVE_CLIENT_SDK_DEFAULT_MODE',
	'custom:../third_party/nacl_sdk/' +
	NACL_PLATFORM_DIR_MAP[env['PLATFORM']] +
	'/sdk/nacl-sdk')

	# Get sdk mode (support sdk_mode for backward compatibility).
	sdk_mode = SCons.Script.ARGUMENTS.get('sdk_mode', default_mode)
	sdk_mode = SCons.Script.ARGUMENTS.get('naclsdk_mode', sdk_mode)

	# Decide where to get the SDK.
	env.Replace(NACL_SDK_ROOT=_GetNaclSdkRoot(env, sdk_mode))

	# Validate the sdk unless disabled from the command line.
	env.SetDefault(NACL_SDK_VALIDATE='1')
	if int(SCons.Script.ARGUMENTS.get('naclsdk_validate',
	env.subst('$NACL_SDK_VALIDATE'))):
	_ValidateSdk(env, sdk_mode)

	if env.subst('$NACL_SDK_ROOT_ONLY'): return

	# Invoke the various unix tools that the NativeClient SDK resembles.
	env.Tool('g++')
	env.Tool('gcc')
	env.Tool('gnulink')
	env.Tool('ar')
	env.Tool('as')

	env.Replace(
	HOST_PLATFORMS=['*'], # NaCl builds on all platforms.

	COMPONENT_LINKFLAGS=['-Wl,-rpath-link,$COMPONENT_LIBRARY_DIR'],
	COMPONENT_LIBRARY_LINK_SUFFIXES=['.so', '.a'],
	COMPONENT_LIBRARY_DEBUG_SUFFIXES=[],

	# TODO: This is needed for now to work around unc paths. Take this out
	# when unc paths are fixed.
	IMPLICIT_COMMAND_DEPENDENCIES=False,

	# Setup path to NativeClient tools.
	NACL_SDK_BIN='$NACL_SDK_ROOT/bin',
	NACL_SDK_INCLUDE='$NACL_SDK_ROOT/nacl/include',
	NACL_SDK_LIB='$NACL_SDK_ROOT/nacl/lib',

	# Replace the normal unix tools with the NaCl ones.
	CC='nacl-gcc',
	CXX='nacl-g++',
	AR='nacl-ar',
	AS='nacl-as',
	LINK='nacl-g++', # use g++ for linking so we can handle c AND c++
	RANLIB='nacl-ranlib',

	# TODO: this could be .nexe and then all the .nexe stuff goes away?
	PROGSUFFIX='' # Force PROGSUFFIX to '' on all platforms.
	)

	env.PrependENVPath('PATH', [env.subst('$NACL_SDK_BIN')])
	env.PrependENVPath('INCLUDE', [env.subst('$NACL_SDK_INCLUDE')])
	env.Prepend(LINKFLAGS='-L' + env.subst('$NACL_SDK_LIB'))

	env.Append(
	CCFLAGS=[
	'-fno-stack-protector',
	'-fno-builtin',
	],
	)