v8/build/gyp_v8

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#!/usr/bin/env python
#
# Copyright 2012 the V8 project authors. 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.
# This script is wrapper for V8 that adds some support for how GYP
# is invoked by V8 beyond what can be done in the gclient hooks.
import glob
import os
import platform
import shlex
import sys
script_dir = os.path.dirname(__file__)
v8_root = os.path.normpath(os.path.join(script_dir, os.pardir))
if __name__ == '__main__':
os.chdir(v8_root)
script_dir = os.path.dirname(__file__)
v8_root = '.'
sys.path.insert(0, os.path.join(v8_root, 'build', 'gyp', 'pylib'))
import gyp
# Add paths so that pymod_do_main(...) can import files.
sys.path.insert(
1, os.path.abspath(os.path.join(v8_root, 'tools', 'generate_shim_headers')))
def apply_gyp_environment(file_path=None):
"""
Reads in a *.gyp_env file and applies the valid keys to os.environ.
"""
if not file_path or not os.path.exists(file_path):
return
file_contents = open(file_path).read()
try:
file_data = eval(file_contents, {'__builtins__': None}, None)
except SyntaxError, e:
e.filename = os.path.abspath(file_path)
raise
supported_vars = ( 'V8_GYP_FILE',
'V8_GYP_SYNTAX_CHECK',
'GYP_DEFINES',
'GYP_GENERATOR_FLAGS',
'GYP_GENERATOR_OUTPUT', )
for var in supported_vars:
val = file_data.get(var)
if val:
if var in os.environ:
print 'INFO: Environment value for "%s" overrides value in %s.' % (
var, os.path.abspath(file_path)
)
else:
os.environ[var] = val
def additional_include_files(args=[]):
"""
Returns a list of additional (.gypi) files to include, without
duplicating ones that are already specified on the command line.
"""
# Determine the include files specified on the command line.
# This doesn't cover all the different option formats you can use,
# but it's mainly intended to avoid duplicating flags on the automatic
# makefile regeneration which only uses this format.
specified_includes = set()
for arg in args:
if arg.startswith('-I') and len(arg) > 2:
specified_includes.add(os.path.realpath(arg[2:]))
result = []
def AddInclude(path):
if os.path.realpath(path) not in specified_includes:
result.append(path)
# Always include standalone.gypi
AddInclude(os.path.join(v8_root, 'build', 'standalone.gypi'))
# Optionally add supplemental .gypi files if present.
supplements = glob.glob(os.path.join(v8_root, '*', 'supplement.gypi'))
for supplement in supplements:
AddInclude(supplement)
return result
def run_gyp(args):
rc = gyp.main(args)
if rc != 0:
print 'Error running GYP'
sys.exit(rc)
if __name__ == '__main__':
args = sys.argv[1:]
if 'SKIP_V8_GYP_ENV' not in os.environ:
# Update the environment based on v8.gyp_env
gyp_env_path = os.path.join(os.path.dirname(v8_root), 'v8.gyp_env')
apply_gyp_environment(gyp_env_path)
# This could give false positives since it doesn't actually do real option
# parsing. Oh well.
gyp_file_specified = False
for arg in args:
if arg.endswith('.gyp'):
gyp_file_specified = True
break
# If we didn't get a file, check an env var, and then fall back to
# assuming 'all.gyp' from the same directory as the script.
if not gyp_file_specified:
gyp_file = os.environ.get('V8_GYP_FILE')
if gyp_file:
# Note that V8_GYP_FILE values can't have backslashes as
# path separators even on Windows due to the use of shlex.split().
args.extend(shlex.split(gyp_file))
else:
# Note that this must not start with "./" or things break.
# So we rely on having done os.chdir(v8_root) above and use the
# relative path.
args.append(os.path.join('build', 'all.gyp'))
args.extend(['-I' + i for i in additional_include_files(args)])
# There shouldn't be a circular dependency relationship between .gyp files
args.append('--no-circular-check')
# Set the GYP DEPTH variable to the root of the V8 project.
args.append('--depth=' + v8_root)
# If V8_GYP_SYNTAX_CHECK is set to 1, it will invoke gyp with --check
# to enfore syntax checking.
syntax_check = os.environ.get('V8_GYP_SYNTAX_CHECK')
if syntax_check and int(syntax_check):
args.append('--check')
print 'Updating projects from gyp files...'
sys.stdout.flush()
# Generate for the architectures supported on the given platform.
gyp_args = list(args)
if platform.system() == 'Linux':
gyp_args.append('--generator-output=out')
run_gyp(gyp_args)