1#!/usr/bin/env python 2# 3# Copyright 2012 the V8 project authors. All rights reserved. 4# Redistribution and use in source and binary forms, with or without 5# modification, are permitted provided that the following conditions are 6# met: 7# 8# * Redistributions of source code must retain the above copyright 9# notice, this list of conditions and the following disclaimer. 10# * Redistributions in binary form must reproduce the above 11# copyright notice, this list of conditions and the following 12# disclaimer in the documentation and/or other materials provided 13# with the distribution. 14# * Neither the name of Google Inc. nor the names of its 15# contributors may be used to endorse or promote products derived 16# from this software without specific prior written permission. 17# 18# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 30# This script is wrapper for V8 that adds some support for how GYP 31# is invoked by V8 beyond what can be done in the gclient hooks. 32 33import glob 34import os 35import platform 36import shlex 37import subprocess 38import sys 39 40script_dir = os.path.dirname(os.path.realpath(__file__)) 41v8_root = os.path.abspath(os.path.join(script_dir, os.pardir)) 42 43sys.path.insert(0, os.path.join(v8_root, 'build', 'gyp', 'pylib')) 44import gyp 45 46# Add paths so that pymod_do_main(...) can import files. 47sys.path.insert( 48 1, os.path.abspath(os.path.join(v8_root, 'tools', 'generate_shim_headers'))) 49 50 51def apply_gyp_environment(file_path=None): 52 """ 53 Reads in a *.gyp_env file and applies the valid keys to os.environ. 54 """ 55 if not file_path or not os.path.exists(file_path): 56 return 57 file_contents = open(file_path).read() 58 try: 59 file_data = eval(file_contents, {'__builtins__': None}, None) 60 except SyntaxError, e: 61 e.filename = os.path.abspath(file_path) 62 raise 63 supported_vars = ( 'V8_GYP_FILE', 64 'V8_GYP_SYNTAX_CHECK', 65 'GYP_DEFINES', 66 'GYP_GENERATOR_FLAGS', 67 'GYP_GENERATOR_OUTPUT', ) 68 for var in supported_vars: 69 val = file_data.get(var) 70 if val: 71 if var in os.environ: 72 print 'INFO: Environment value for "%s" overrides value in %s.' % ( 73 var, os.path.abspath(file_path) 74 ) 75 else: 76 os.environ[var] = val 77 78 79def additional_include_files(args=[]): 80 """ 81 Returns a list of additional (.gypi) files to include, without 82 duplicating ones that are already specified on the command line. 83 """ 84 # Determine the include files specified on the command line. 85 # This doesn't cover all the different option formats you can use, 86 # but it's mainly intended to avoid duplicating flags on the automatic 87 # makefile regeneration which only uses this format. 88 specified_includes = set() 89 for arg in args: 90 if arg.startswith('-I') and len(arg) > 2: 91 specified_includes.add(os.path.realpath(arg[2:])) 92 93 result = [] 94 def AddInclude(path): 95 if os.path.realpath(path) not in specified_includes: 96 result.append(path) 97 98 # Always include standalone.gypi 99 AddInclude(os.path.join(v8_root, 'build', 'standalone.gypi')) 100 101 # Optionally add supplemental .gypi files if present. 102 supplements = glob.glob(os.path.join(v8_root, '*', 'supplement.gypi')) 103 for supplement in supplements: 104 AddInclude(supplement) 105 106 return result 107 108 109def run_gyp(args): 110 rc = gyp.main(args) 111 112 # Check for landmines (reasons to clobber the build). This must be run here, 113 # rather than a separate runhooks step so that any environment modifications 114 # from above are picked up. 115 print 'Running build/landmines.py...' 116 subprocess.check_call( 117 [sys.executable, os.path.join(script_dir, 'landmines.py')]) 118 119 if rc != 0: 120 print 'Error running GYP' 121 sys.exit(rc) 122 123 124if __name__ == '__main__': 125 args = sys.argv[1:] 126 127 if 'SKIP_V8_GYP_ENV' not in os.environ: 128 # Update the environment based on v8.gyp_env 129 gyp_env_path = os.path.join(os.path.dirname(v8_root), 'v8.gyp_env') 130 apply_gyp_environment(gyp_env_path) 131 132 # This could give false positives since it doesn't actually do real option 133 # parsing. Oh well. 134 gyp_file_specified = False 135 for arg in args: 136 if arg.endswith('.gyp'): 137 gyp_file_specified = True 138 break 139 140 # If we didn't get a file, check an env var, and then fall back to 141 # assuming 'all.gyp' from the same directory as the script. 142 if not gyp_file_specified: 143 gyp_file = os.environ.get('V8_GYP_FILE') 144 if gyp_file: 145 # Note that V8_GYP_FILE values can't have backslashes as 146 # path separators even on Windows due to the use of shlex.split(). 147 args.extend(shlex.split(gyp_file)) 148 else: 149 args.append(os.path.join(script_dir, 'all.gyp')) 150 151 args.extend(['-I' + i for i in additional_include_files(args)]) 152 153 # There shouldn't be a circular dependency relationship between .gyp files 154 args.append('--no-circular-check') 155 156 # Set the GYP DEPTH variable to the root of the V8 project. 157 args.append('--depth=' + os.path.relpath(v8_root)) 158 159 # If V8_GYP_SYNTAX_CHECK is set to 1, it will invoke gyp with --check 160 # to enfore syntax checking. 161 syntax_check = os.environ.get('V8_GYP_SYNTAX_CHECK') 162 if syntax_check and int(syntax_check): 163 args.append('--check') 164 165 print 'Updating projects from gyp files...' 166 sys.stdout.flush() 167 168 # Generate for the architectures supported on the given platform. 169 gyp_args = list(args) 170 gyp_generators = os.environ.get('GYP_GENERATORS') 171 if platform.system() == 'Linux' and gyp_generators != 'ninja': 172 # Work around for crbug.com/331475. 173 for f in glob.glob(os.path.join(v8_root, 'out', 'Makefile.*')): 174 os.unlink(f) 175 # --generator-output defines where the Makefile goes. 176 gyp_args.append('--generator-output=out') 177 # -Goutput_dir defines where the build output goes, relative to the 178 # Makefile. Set it to . so that the build output doesn't end up in out/out. 179 gyp_args.append('-Goutput_dir=.') 180 run_gyp(gyp_args) 181