| # Copyright 2013 The Chromium Authors |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| # |
| # Copies the given "win tool" (which the toolchain uses to wrap compiler |
| # invocations) and the environment blocks for the 32-bit and 64-bit builds on |
| # Windows to the build directory. |
| # |
| # The arguments are the visual studio install location and the location of the |
| # win tool. The script assumes that the root build directory is the current dir |
| # and the files will be written to the current directory. |
| |
| |
| import errno |
| import json |
| import os |
| import re |
| import subprocess |
| import sys |
| |
| sys.path.append(os.path.join(os.path.dirname(__file__), os.pardir, os.pardir)) |
| import gn_helpers |
| |
| SCRIPT_DIR = os.path.dirname(__file__) |
| SDK_VERSION = '10.0.22621.0' |
| |
| |
| def _ExtractImportantEnvironment(output_of_set): |
| """Extracts environment variables required for the toolchain to run from |
| a textual dump output by the cmd.exe 'set' command.""" |
| envvars_to_save = ( |
| 'cipd_cache_dir', # needed by vpython |
| 'homedrive', # needed by vpython |
| 'homepath', # needed by vpython |
| 'goma_.*', # TODO(scottmg): This is ugly, but needed for goma. |
| 'include', |
| 'lib', |
| 'libpath', |
| 'luci_context', # needed by vpython |
| 'path', |
| 'pathext', |
| 'systemroot', |
| 'temp', |
| 'tmp', |
| 'userprofile', # needed by vpython |
| 'vpython_virtualenv_root' # needed by vpython |
| ) |
| env = {} |
| # This occasionally happens and leads to misleading SYSTEMROOT error messages |
| # if not caught here. |
| if output_of_set.count('=') == 0: |
| raise Exception('Invalid output_of_set. Value is:\n%s' % output_of_set) |
| for line in output_of_set.splitlines(): |
| for envvar in envvars_to_save: |
| if re.match(envvar + '=', line.lower()): |
| var, setting = line.split('=', 1) |
| if envvar == 'path': |
| # Our own rules and actions in Chromium rely on python being in the |
| # path. Add the path to this python here so that if it's not in the |
| # path when ninja is run later, python will still be found. |
| setting = os.path.dirname(sys.executable) + os.pathsep + setting |
| if envvar in ['include', 'lib']: |
| # Make sure that the include and lib paths point to directories that |
| # exist. This ensures a (relatively) clear error message if the |
| # required SDK is not installed. |
| for part in setting.split(';'): |
| if not os.path.exists(part) and len(part) != 0: |
| raise Exception( |
| 'Path "%s" from environment variable "%s" does not exist. ' |
| 'Make sure the necessary SDK is installed.' % (part, envvar)) |
| env[var.upper()] = setting |
| break |
| if sys.platform in ('win32', 'cygwin'): |
| for required in ('SYSTEMROOT', 'TEMP', 'TMP'): |
| if required not in env: |
| raise Exception('Environment variable "%s" ' |
| 'required to be set to valid path' % required) |
| return env |
| |
| |
| def _DetectVisualStudioPath(): |
| """Return path to the installed Visual Studio. |
| """ |
| |
| # Use the code in build/vs_toolchain.py to avoid duplicating code. |
| chromium_dir = os.path.abspath(os.path.join(SCRIPT_DIR, '..', '..', '..')) |
| sys.path.append(os.path.join(chromium_dir, 'build')) |
| import vs_toolchain |
| return vs_toolchain.DetectVisualStudioPath() |
| |
| |
| def _LoadEnvFromBat(args): |
| """Given a bat command, runs it and returns env vars set by it.""" |
| args = args[:] |
| args.extend(('&&', 'set')) |
| popen = subprocess.Popen( |
| args, shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT) |
| variables, _ = popen.communicate() |
| if popen.returncode != 0: |
| raise Exception('"%s" failed with error %d' % (args, popen.returncode)) |
| return variables.decode(errors='ignore') |
| |
| |
| def _LoadToolchainEnv(cpu, toolchain_root, sdk_dir, target_store): |
| """Returns a dictionary with environment variables that must be set while |
| running binaries from the toolchain (e.g. INCLUDE and PATH for cl.exe).""" |
| # Check if we are running in the SDK command line environment and use |
| # the setup script from the SDK if so. |cpu| should be either |
| # 'x86' or 'x64' or 'arm' or 'arm64'. |
| assert cpu in ('x86', 'x64', 'arm', 'arm64') |
| if bool(int(os.environ.get('DEPOT_TOOLS_WIN_TOOLCHAIN', 1))) and sdk_dir: |
| # Load environment from json file. |
| env = os.path.normpath(os.path.join(sdk_dir, 'bin/SetEnv.%s.json' % cpu)) |
| env = json.load(open(env))['env'] |
| if env['VSINSTALLDIR'] == [["..", "..\\"]]: |
| # Old-style paths were relative to the win_sdk\bin directory. |
| json_relative_dir = os.path.join(sdk_dir, 'bin') |
| else: |
| # New-style paths are relative to the toolchain directory. |
| json_relative_dir = toolchain_root |
| 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 :. |
| # The separator for INCLUDE here must match the one used in main() below. |
| 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'] |
| # Augment with the current env to pick up TEMP and friends. |
| for k in os.environ: |
| if k not in env: |
| env[k] = os.environ[k] |
| |
| varlines = [] |
| for k in sorted(env.keys()): |
| varlines.append('%s=%s' % (str(k), str(env[k]))) |
| variables = '\n'.join(varlines) |
| |
| # Check that the json file contained the same environment as the .cmd file. |
| if sys.platform in ('win32', 'cygwin'): |
| script = os.path.normpath(os.path.join(sdk_dir, 'Bin/SetEnv.cmd')) |
| arg = '/' + cpu |
| json_env = _ExtractImportantEnvironment(variables) |
| cmd_env = _ExtractImportantEnvironment(_LoadEnvFromBat([script, arg])) |
| assert _LowercaseDict(json_env) == _LowercaseDict(cmd_env) |
| else: |
| if 'GYP_MSVS_OVERRIDE_PATH' not in os.environ: |
| os.environ['GYP_MSVS_OVERRIDE_PATH'] = _DetectVisualStudioPath() |
| # We only support x64-hosted tools. |
| script_path = os.path.normpath(os.path.join( |
| os.environ['GYP_MSVS_OVERRIDE_PATH'], |
| 'VC/vcvarsall.bat')) |
| if not os.path.exists(script_path): |
| # vcvarsall.bat for VS 2017 fails if run after running vcvarsall.bat from |
| # VS 2013 or VS 2015. Fix this by clearing the vsinstalldir environment |
| # variable. Since vcvarsall.bat appends to the INCLUDE, LIB, and LIBPATH |
| # environment variables we need to clear those to avoid getting double |
| # entries when vcvarsall.bat has been run before gn gen. vcvarsall.bat |
| # also adds to PATH, but there is no clean way of clearing that and it |
| # doesn't seem to cause problems. |
| if 'VSINSTALLDIR' in os.environ: |
| del os.environ['VSINSTALLDIR'] |
| if 'INCLUDE' in os.environ: |
| del os.environ['INCLUDE'] |
| if 'LIB' in os.environ: |
| del os.environ['LIB'] |
| if 'LIBPATH' in os.environ: |
| del os.environ['LIBPATH'] |
| other_path = os.path.normpath(os.path.join( |
| os.environ['GYP_MSVS_OVERRIDE_PATH'], |
| 'VC/Auxiliary/Build/vcvarsall.bat')) |
| if not os.path.exists(other_path): |
| raise Exception('%s is missing - make sure VC++ tools are installed.' % |
| script_path) |
| script_path = other_path |
| cpu_arg = "amd64" |
| if (cpu != 'x64'): |
| # x64 is default target CPU thus any other CPU requires a target set |
| cpu_arg += '_' + cpu |
| args = [script_path, cpu_arg, ] |
| # Store target must come before any SDK version declaration |
| if (target_store): |
| args.append('store') |
| # Explicitly specifying the SDK version to build with to avoid accidentally |
| # building with a new and untested SDK. This should stay in sync with the |
| # packaged toolchain in build/vs_toolchain.py. |
| args.append(SDK_VERSION) |
| variables = _LoadEnvFromBat(args) |
| return _ExtractImportantEnvironment(variables) |
| |
| |
| def _FormatAsEnvironmentBlock(envvar_dict): |
| """Format as an 'environment block' directly suitable for CreateProcess. |
| Briefly this is a list of key=value\0, terminated by an additional \0. See |
| CreateProcess documentation for more details.""" |
| block = '' |
| nul = '\0' |
| for key, value in envvar_dict.items(): |
| block += key + '=' + value + nul |
| block += nul |
| return block |
| |
| |
| def _LowercaseDict(d): |
| """Returns a copy of `d` with both key and values lowercased. |
| |
| Args: |
| d: dict to lowercase (e.g. {'A': 'BcD'}). |
| |
| Returns: |
| A dict with both keys and values lowercased (e.g.: {'a': 'bcd'}). |
| """ |
| return {k.lower(): d[k].lower() for k in d} |
| |
| |
| def FindFileInEnvList(env, env_name, separator, file_name, optional=False): |
| parts = env[env_name].split(separator) |
| for path in parts: |
| if os.path.exists(os.path.join(path, file_name)): |
| return os.path.realpath(path) |
| assert optional, "%s is not found in %s:\n%s\nCheck if it is installed." % ( |
| file_name, env_name, '\n'.join(parts)) |
| return '' |
| |
| |
| def main(): |
| if len(sys.argv) != 7: |
| print('Usage setup_toolchain.py ' |
| '<visual studio path> <win sdk path> ' |
| '<runtime dirs> <target_os> <target_cpu> ' |
| '<environment block name|none>') |
| sys.exit(2) |
| # toolchain_root and win_sdk_path are only read if the hermetic Windows |
| # toolchain is set, that is if DEPOT_TOOLS_WIN_TOOLCHAIN is not set to 0. |
| # With the hermetic Windows toolchain, the visual studio path in argv[1] |
| # is the root of the Windows toolchain directory. |
| toolchain_root = sys.argv[1] |
| win_sdk_path = sys.argv[2] |
| |
| runtime_dirs = sys.argv[3] |
| target_os = sys.argv[4] |
| target_cpu = sys.argv[5] |
| environment_block_name = sys.argv[6] |
| if (environment_block_name == 'none'): |
| environment_block_name = '' |
| |
| if (target_os == 'winuwp'): |
| target_store = True |
| else: |
| target_store = False |
| |
| cpus = ('x86', 'x64', 'arm', 'arm64') |
| assert target_cpu in cpus |
| vc_bin_dir = '' |
| include = '' |
| lib = '' |
| |
| # TODO(scottmg|goma): Do we need an equivalent of |
| # ninja_use_custom_environment_files? |
| |
| def relflag(s): # Make s relative to builddir when cwd and sdk on same drive. |
| try: |
| return os.path.relpath(s).replace('\\', '/') |
| except ValueError: |
| return s |
| |
| def q(s): # Quote s if it contains spaces or other weird characters. |
| return s if re.match(r'^[a-zA-Z0-9._/\\:-]*$', s) else '"' + s + '"' |
| |
| for cpu in cpus: |
| if cpu == target_cpu: |
| # Extract environment variables for subprocesses. |
| env = _LoadToolchainEnv(cpu, toolchain_root, win_sdk_path, target_store) |
| env['PATH'] = runtime_dirs + os.pathsep + env['PATH'] |
| |
| vc_bin_dir = FindFileInEnvList(env, 'PATH', os.pathsep, 'cl.exe') |
| |
| # The separator for INCLUDE here must match the one used in |
| # _LoadToolchainEnv() above. |
| include = [p.replace('"', r'\"') for p in env['INCLUDE'].split(';') if p] |
| include = list(map(relflag, include)) |
| |
| lib = [p.replace('"', r'\"') for p in env['LIB'].split(';') if p] |
| lib = list(map(relflag, lib)) |
| |
| include_I = ' '.join([q('/I' + i) for i in include]) |
| include_imsvc = ' '.join([q('-imsvc' + i) for i in include]) |
| libpath_flags = ' '.join([q('-libpath:' + i) for i in lib]) |
| |
| if (environment_block_name != ''): |
| env_block = _FormatAsEnvironmentBlock(env) |
| with open(environment_block_name, 'w', encoding='utf8') as f: |
| f.write(env_block) |
| |
| print('vc_bin_dir = ' + gn_helpers.ToGNString(vc_bin_dir)) |
| assert include_I |
| print('include_flags_I = ' + gn_helpers.ToGNString(include_I)) |
| assert include_imsvc |
| if bool(int(os.environ.get('DEPOT_TOOLS_WIN_TOOLCHAIN', 1))) and win_sdk_path: |
| print('include_flags_imsvc = ' + |
| gn_helpers.ToGNString(q('/winsysroot' + relflag(toolchain_root)))) |
| else: |
| print('include_flags_imsvc = ' + gn_helpers.ToGNString(include_imsvc)) |
| print('paths = ' + gn_helpers.ToGNString(env['PATH'])) |
| assert libpath_flags |
| print('libpath_flags = ' + gn_helpers.ToGNString(libpath_flags)) |
| if bool(int(os.environ.get('DEPOT_TOOLS_WIN_TOOLCHAIN', 1))) and win_sdk_path: |
| print('libpath_lldlink_flags = ' + |
| gn_helpers.ToGNString(q('/winsysroot:' + relflag(toolchain_root)))) |
| else: |
| print('libpath_lldlink_flags = ' + gn_helpers.ToGNString(libpath_flags)) |
| |
| |
| if __name__ == '__main__': |
| main() |
