blob: df4637fb6e145197035d1230e87b3bb5daa49fb3 [file] [log] [blame]
# Copyright 2014 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
from __future__ import print_function
import json
import os
import os.path
import subprocess
import sys
script_dir = os.path.dirname(os.path.realpath(__file__))
json_data_file = os.path.join(script_dir, 'win_toolchain.json')
def SetEnvironmentForCPU(cpu):
"""Sets the environment to build with the selected toolchain for |cpu|."""
with open(json_data_file, 'r') as tempf:
toolchain_data = json.load(tempf)
sdk_dir = toolchain_data['win_sdk']
os.environ['WINDOWSSDKDIR'] = sdk_dir
os.environ['WDK_DIR'] = toolchain_data['wdk']
# Include the VS runtime in the PATH in case it's not machine-installed.
vs_runtime_dll_dirs = toolchain_data['runtime_dirs']
runtime_path = os.pathsep.join(vs_runtime_dll_dirs)
os.environ['PATH'] = runtime_path + os.pathsep + os.environ['PATH']
# Set up the architecture-specific environment from the SetEnv files. See
# _LoadToolchainEnv() from in Chromium.
assert cpu in ('x86', 'x64', 'arm', 'arm64')
with open(os.path.join(sdk_dir, 'bin', 'SetEnv.%s.json' % cpu)) as f:
env = json.load(f)['env']
if env['VSINSTALLDIR'] == [["..", "..\\"]]:
# Old-style paths were relative to the win_sdk\bin directory.
json_relative_dir = os.path.join(sdk_dir, 'bin')
# New-style paths are relative to the toolchain directory.
json_relative_dir = toolchain_data['path']
for k in env:
entries = [os.path.join(*([json_relative_dir] + e)) for e in env[k]]
# clang-cl wants INCLUDE to be ;-separated even on non-Windows,
# lld-link wants LIB to be ;-separated even on non-Windows. Path gets :.
sep = os.pathsep if k == 'PATH' else ';'
env[k] = sep.join(entries)
# PATH is a bit of a special case, it's in addition to the current PATH.
env['PATH'] = env['PATH'] + os.pathsep + os.environ['PATH']
for k, v in env.items():
os.environ[k] = v
def FindDepotTools():
"""Returns the path to depot_tools in $PATH."""
for path in os.environ['PATH'].split(os.pathsep):
if os.path.isfile(os.path.join(path, '')):
return path
raise Exception("depot_tools not found!")
def _GetDesiredVsToolchainHashes(version):
"""Load a list of SHA1s corresponding to the toolchains that we want installed
to build with."""
if version == '2017':
# VS 2017 Update 9 (15.9.12) with 10.0.18362 SDK, 10.0.17763 version of
# Debuggers, and 10.0.17134 version of d3dcompiler_47.dll, with ARM64
# libraries.
return ['418b3076791776573a815eb298c8aa590307af63']
if version == '2019':
# VS 2019 16.61 with 10.0.20348.0 SDK, 10.0.19041 version of Debuggers
# with ARM64 libraries and UWP support.
return ['1023ce2e82']
raise Exception('Unsupported VS version %s' % version)
def Update(version):
"""Requests an update of the toolchain to the specific hashes we have at
this revision. The update outputs a .json of the various configuration
information required to pass to which we use in
depot_tools_path = FindDepotTools()
get_toolchain_args = [
'--output-json', json_data_file,
] + _GetDesiredVsToolchainHashes(version)
return 0
def main():
if not sys.platform.startswith(('win32', 'cygwin')):
return 0
commands = {
'update': Update,
if len(sys.argv) < 2 or sys.argv[1] not in commands:
print('Expected one of: %s' % ', '.join(commands), file=sys.stderr)
return 1
return commands[sys.argv[1]](*sys.argv[2:])
if __name__ == '__main__':