mirror of
https://github.com/klzgrad/naiveproxy.git
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219 lines
8.4 KiB
Python
219 lines
8.4 KiB
Python
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# Copyright (c) 2013 The Chromium Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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#
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# Copies the given "win tool" (which the toolchain uses to wrap compiler
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# invocations) and the environment blocks for the 32-bit and 64-bit builds on
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# Windows to the build directory.
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#
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# The arguments are the visual studio install location and the location of the
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# win tool. The script assumes that the root build directory is the current dir
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# and the files will be written to the current directory.
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import errno
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import json
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import os
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import re
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import subprocess
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import sys
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sys.path.append(os.path.join(os.path.dirname(__file__), os.pardir, os.pardir))
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import gn_helpers
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SCRIPT_DIR = os.path.dirname(__file__)
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def _ExtractImportantEnvironment(output_of_set):
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"""Extracts environment variables required for the toolchain to run from
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a textual dump output by the cmd.exe 'set' command."""
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envvars_to_save = (
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'goma_.*', # TODO(scottmg): This is ugly, but needed for goma.
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'include',
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'lib',
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'libpath',
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'path',
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'pathext',
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'systemroot',
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'temp',
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'tmp',
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)
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env = {}
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# This occasionally happens and leads to misleading SYSTEMROOT error messages
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# if not caught here.
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if output_of_set.count('=') == 0:
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raise Exception('Invalid output_of_set. Value is:\n%s' % output_of_set)
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for line in output_of_set.splitlines():
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for envvar in envvars_to_save:
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if re.match(envvar + '=', line.lower()):
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var, setting = line.split('=', 1)
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if envvar == 'path':
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# Our own rules and actions in Chromium rely on python being in the
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# path. Add the path to this python here so that if it's not in the
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# path when ninja is run later, python will still be found.
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setting = os.path.dirname(sys.executable) + os.pathsep + setting
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env[var.upper()] = setting.lower()
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break
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if sys.platform in ('win32', 'cygwin'):
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for required in ('SYSTEMROOT', 'TEMP', 'TMP'):
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if required not in env:
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raise Exception('Environment variable "%s" '
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'required to be set to valid path' % required)
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return env
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def _DetectVisualStudioPath():
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"""Return path to the GYP_MSVS_VERSION of Visual Studio.
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"""
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# Use the code in build/vs_toolchain.py to avoid duplicating code.
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chromium_dir = os.path.abspath(os.path.join(SCRIPT_DIR, '..', '..', '..'))
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sys.path.append(os.path.join(chromium_dir, 'build'))
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import vs_toolchain
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return vs_toolchain.DetectVisualStudioPath()
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def _LoadEnvFromBat(args):
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"""Given a bat command, runs it and returns env vars set by it."""
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args = args[:]
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args.extend(('&&', 'set'))
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popen = subprocess.Popen(
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args, shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
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variables, _ = popen.communicate()
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if popen.returncode != 0:
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raise Exception('"%s" failed with error %d' % (args, popen.returncode))
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return variables
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def _LoadToolchainEnv(cpu, sdk_dir):
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"""Returns a dictionary with environment variables that must be set while
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running binaries from the toolchain (e.g. INCLUDE and PATH for cl.exe)."""
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# Check if we are running in the SDK command line environment and use
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# the setup script from the SDK if so. |cpu| should be either
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# 'x86' or 'x64'.
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assert cpu in ('x86', 'x64')
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if bool(int(os.environ.get('DEPOT_TOOLS_WIN_TOOLCHAIN', 1))) and sdk_dir:
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# Load environment from json file.
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env = os.path.normpath(os.path.join(sdk_dir, 'bin/SetEnv.%s.json' % cpu))
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env = json.load(open(env))['env']
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for k in env:
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entries = [os.path.join(*([os.path.join(sdk_dir, 'bin')] + e))
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for e in env[k]]
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# clang-cl wants INCLUDE to be ;-separated even on non-Windows,
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# lld-link wants LIB to be ;-separated even on non-Windows. Path gets :.
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# The separator for INCLUDE here must match the one used in main() below.
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sep = os.pathsep if k == 'PATH' else ';'
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env[k] = sep.join(entries)
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# PATH is a bit of a special case, it's in addition to the current PATH.
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env['PATH'] = env['PATH'] + os.pathsep + os.environ['PATH']
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# Augment with the current env to pick up TEMP and friends.
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for k in os.environ:
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if k not in env:
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env[k] = os.environ[k]
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varlines = []
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for k in sorted(env.keys()):
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varlines.append('%s=%s' % (str(k), str(env[k])))
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variables = '\n'.join(varlines)
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# Check that the json file contained the same environment as the .cmd file.
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if sys.platform in ('win32', 'cygwin'):
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script = os.path.normpath(os.path.join(sdk_dir, 'Bin/SetEnv.cmd'))
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assert _ExtractImportantEnvironment(variables) == \
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_ExtractImportantEnvironment(_LoadEnvFromBat([script, '/' + cpu]))
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else:
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if 'GYP_MSVS_OVERRIDE_PATH' not in os.environ:
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os.environ['GYP_MSVS_OVERRIDE_PATH'] = _DetectVisualStudioPath()
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# We only support x64-hosted tools.
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script_path = os.path.normpath(os.path.join(
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os.environ['GYP_MSVS_OVERRIDE_PATH'],
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'VC/vcvarsall.bat'))
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if not os.path.exists(script_path):
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# vcvarsall.bat for VS 2017 fails if run after running vcvarsall.bat from
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# VS 2013 or VS 2015. Fix this by clearing the vsinstalldir environment
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# variable.
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if 'VSINSTALLDIR' in os.environ:
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del os.environ['VSINSTALLDIR']
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other_path = os.path.normpath(os.path.join(
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os.environ['GYP_MSVS_OVERRIDE_PATH'],
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'VC/Auxiliary/Build/vcvarsall.bat'))
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if not os.path.exists(other_path):
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raise Exception('%s is missing - make sure VC++ tools are installed.' %
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script_path)
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script_path = other_path
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# Chromium requires the 10.0.15063.468 SDK - previous versions don't have
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# all of the required declarations and 10.0.16299.0 has some
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# incompatibilities (crbug.com/773476).
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args = [script_path, 'amd64_x86' if cpu == 'x86' else 'amd64',
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'10.0.15063.0']
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variables = _LoadEnvFromBat(args)
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return _ExtractImportantEnvironment(variables)
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def _FormatAsEnvironmentBlock(envvar_dict):
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"""Format as an 'environment block' directly suitable for CreateProcess.
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Briefly this is a list of key=value\0, terminated by an additional \0. See
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CreateProcess documentation for more details."""
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block = ''
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nul = '\0'
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for key, value in envvar_dict.iteritems():
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block += key + '=' + value + nul
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block += nul
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return block
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def main():
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if len(sys.argv) != 5:
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print('Usage setup_toolchain.py '
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'<visual studio path> <win sdk path> '
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'<runtime dirs> <target_cpu> <include prefix>')
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sys.exit(2)
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win_sdk_path = sys.argv[2]
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runtime_dirs = sys.argv[3]
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target_cpu = sys.argv[4]
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cpus = ('x86', 'x64')
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assert target_cpu in cpus
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vc_bin_dir = ''
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include = ''
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# TODO(scottmg|goma): Do we need an equivalent of
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# ninja_use_custom_environment_files?
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for cpu in cpus:
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# Extract environment variables for subprocesses.
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env = _LoadToolchainEnv(cpu, win_sdk_path)
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env['PATH'] = runtime_dirs + os.pathsep + env['PATH']
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if cpu == target_cpu:
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for path in env['PATH'].split(os.pathsep):
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if os.path.exists(os.path.join(path, 'cl.exe')):
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vc_bin_dir = os.path.realpath(path)
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break
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# The separator for INCLUDE here must match the one used in
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# _LoadToolchainEnv() above.
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include = [p.replace('"', r'\"') for p in env['INCLUDE'].split(';') if p]
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include_I = ' '.join(['"/I' + i + '"' for i in include])
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include_imsvc = ' '.join(['"-imsvc' + i + '"' for i in include])
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env_block = _FormatAsEnvironmentBlock(env)
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with open('environment.' + cpu, 'wb') as f:
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f.write(env_block)
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# Create a store app version of the environment.
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if 'LIB' in env:
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env['LIB'] = env['LIB'] .replace(r'\VC\LIB', r'\VC\LIB\STORE')
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if 'LIBPATH' in env:
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env['LIBPATH'] = env['LIBPATH'].replace(r'\VC\LIB', r'\VC\LIB\STORE')
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env_block = _FormatAsEnvironmentBlock(env)
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with open('environment.winrt_' + cpu, 'wb') as f:
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f.write(env_block)
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assert vc_bin_dir
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print 'vc_bin_dir = ' + gn_helpers.ToGNString(vc_bin_dir)
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assert include_I
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print 'include_flags_I = ' + gn_helpers.ToGNString(include_I)
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assert include_imsvc
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print 'include_flags_imsvc = ' + gn_helpers.ToGNString(include_imsvc)
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if __name__ == '__main__':
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main()
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