2 # Copyright 2014 The Chromium Authors. All rights reserved.
3 # Use of this source code is governed by a BSD-style license that can be
4 # found in the LICENSE file.
17 from gn_helpers import ToGNString
20 script_dir = os.path.dirname(os.path.realpath(__file__))
21 json_data_file = os.path.join(script_dir, 'win_toolchain.json')
24 # Use MSVS2017 as the default toolchain.
25 CURRENT_DEFAULT_TOOLCHAIN_VERSION = '2017'
28 def SetEnvironmentAndGetRuntimeDllDirs():
29 """Sets up os.environ to use the depot_tools VS toolchain with gyp, and
30 returns the location of the VC runtime DLLs so they can be copied into
31 the output directory after gyp generation.
33 Return value is [x64path, x86path, 'Arm64Unused'] or None. arm64path is
34 generated separately because there are multiple folders for the arm64 VC
37 vs_runtime_dll_dirs = None
38 depot_tools_win_toolchain = \
39 bool(int(os.environ.get('DEPOT_TOOLS_WIN_TOOLCHAIN', '1')))
40 # When running on a non-Windows host, only do this if the SDK has explicitly
41 # been downloaded before (in which case json_data_file will exist).
42 if ((sys.platform in ('win32', 'cygwin') or os.path.exists(json_data_file))
43 and depot_tools_win_toolchain):
44 if ShouldUpdateToolchain():
45 update_result = Update()
46 if update_result != 0:
47 raise Exception('Failed to update, error code %d.' % update_result)
48 with open(json_data_file, 'r') as tempf:
49 toolchain_data = json.load(tempf)
51 toolchain = toolchain_data['path']
52 version = toolchain_data['version']
53 win_sdk = toolchain_data.get('win_sdk')
55 win_sdk = toolchain_data['win8sdk']
56 wdk = toolchain_data['wdk']
57 # TODO(scottmg): The order unfortunately matters in these. They should be
58 # split into separate keys for x64/x86/arm64. (See CopyDlls call below).
59 # http://crbug.com/345992
60 vs_runtime_dll_dirs = toolchain_data['runtime_dirs']
61 # The number of runtime_dirs in the toolchain_data was two (x64/x86) but
62 # changed to three (x64/x86/arm64) and this code needs to handle both
63 # possibilities, which can change independently from this code.
64 if len(vs_runtime_dll_dirs) == 2:
65 vs_runtime_dll_dirs.append('Arm64Unused')
67 os.environ['GYP_MSVS_OVERRIDE_PATH'] = toolchain
68 os.environ['GYP_MSVS_VERSION'] = version
70 os.environ['WINDOWSSDKDIR'] = win_sdk
71 os.environ['WDK_DIR'] = wdk
72 # Include the VS runtime in the PATH in case it's not machine-installed.
73 runtime_path = os.path.pathsep.join(vs_runtime_dll_dirs)
74 os.environ['PATH'] = runtime_path + os.path.pathsep + os.environ['PATH']
75 elif sys.platform == 'win32' and not depot_tools_win_toolchain:
76 if not 'GYP_MSVS_OVERRIDE_PATH' in os.environ:
77 os.environ['GYP_MSVS_OVERRIDE_PATH'] = DetectVisualStudioPath()
78 if not 'GYP_MSVS_VERSION' in os.environ:
79 os.environ['GYP_MSVS_VERSION'] = GetVisualStudioVersion()
81 # When using an installed toolchain these files aren't needed in the output
82 # directory in order to run binaries locally, but they are needed in order
83 # to create isolates or the mini_installer. Copying them to the output
84 # directory ensures that they are available when needed.
85 bitness = platform.architecture()[0]
86 # When running 64-bit python the x64 DLLs will be in System32
87 # ARM64 binaries will not be available in the system directories because we
88 # don't build on ARM64 machines.
89 x64_path = 'System32' if bitness == '64bit' else 'Sysnative'
90 x64_path = os.path.join(os.path.expandvars('%windir%'), x64_path)
91 vs_runtime_dll_dirs = [x64_path,
92 os.path.join(os.path.expandvars('%windir%'),
96 return vs_runtime_dll_dirs
99 def _RegistryGetValueUsingWinReg(key, value):
100 """Use the _winreg module to obtain the value of a registry key.
103 key: The registry key.
104 value: The particular registry value to read.
106 contents of the registry key's value, or None on failure. Throws
107 ImportError if _winreg is unavailable.
111 root, subkey = key.split('\\', 1)
112 assert root == 'HKLM' # Only need HKLM for now.
113 with _winreg.OpenKey(_winreg.HKEY_LOCAL_MACHINE, subkey) as hkey:
114 return _winreg.QueryValueEx(hkey, value)[0]
119 def _RegistryGetValue(key, value):
121 return _RegistryGetValueUsingWinReg(key, value)
123 raise Exception('The python library _winreg not found.')
126 def GetVisualStudioVersion():
127 """Return GYP_MSVS_VERSION of Visual Studio.
129 return os.environ.get('GYP_MSVS_VERSION', CURRENT_DEFAULT_TOOLCHAIN_VERSION)
132 def DetectVisualStudioPath():
133 """Return path to the GYP_MSVS_VERSION of Visual Studio.
136 # Note that this code is used from
137 # build/toolchain/win/setup_toolchain.py as well.
138 version_as_year = GetVisualStudioVersion()
143 if version_as_year not in year_to_version:
144 raise Exception(('Visual Studio version %s (from GYP_MSVS_VERSION)'
145 ' not supported. Supported versions are: %s') % (
146 version_as_year, ', '.join(year_to_version.keys())))
148 # The VC++ >=2017 install location needs to be located using COM instead of
149 # the registry. For details see:
150 # https://blogs.msdn.microsoft.com/heaths/2016/09/15/changes-to-visual-studio-15-setup/
151 # For now we use a hardcoded default with an environment variable override.
153 os.environ.get('vs%s_install' % version_as_year),
154 os.path.expandvars('%ProgramFiles(x86)%' +
155 '/Microsoft Visual Studio/%s/Enterprise' %
157 os.path.expandvars('%ProgramFiles(x86)%' +
158 '/Microsoft Visual Studio/%s/Professional' %
160 os.path.expandvars('%ProgramFiles(x86)%' +
161 '/Microsoft Visual Studio/%s/Community' %
163 os.path.expandvars('%ProgramFiles(x86)%' +
164 '/Microsoft Visual Studio/%s/Preview' %
166 if path and os.path.exists(path):
169 raise Exception(('Visual Studio Version %s (from GYP_MSVS_VERSION)'
170 ' not found.') % (version_as_year))
173 def _CopyRuntimeImpl(target, source, verbose=True):
174 """Copy |source| to |target| if it doesn't already exist or if it needs to be
175 updated (comparing last modified time as an approximate float match as for
176 some reason the values tend to differ by ~1e-07 despite being copies of the
177 same file... https://crbug.com/603603).
179 if (os.path.isdir(os.path.dirname(target)) and
180 (not os.path.isfile(target) or
181 abs(os.stat(target).st_mtime - os.stat(source).st_mtime) >= 0.01)):
183 print 'Copying %s to %s...' % (source, target)
184 if os.path.exists(target):
185 # Make the file writable so that we can delete it now, and keep it
187 os.chmod(target, stat.S_IWRITE | stat.S_IREAD)
189 shutil.copy2(source, target)
190 # Make the file writable so that we can overwrite or delete it later,
192 os.chmod(target, stat.S_IWRITE | stat.S_IREAD)
195 def _CopyUCRTRuntime(target_dir, source_dir, target_cpu, dll_pattern, suffix):
196 """Copy both the msvcp and vccorlib runtime DLLs, only if the target doesn't
197 exist, but the target directory does exist."""
198 if target_cpu == 'arm64':
199 # Windows ARM64 VCRuntime is located at {toolchain_root}/VC/Redist/MSVC/
200 # {x.y.z}/[debug_nonredist/]arm64/Microsoft.VC141.CRT/.
201 vc_redist_root = FindVCRedistRoot()
202 if suffix.startswith('.'):
203 source_dir = os.path.join(vc_redist_root,
204 'arm64', 'Microsoft.VC141.CRT')
206 source_dir = os.path.join(vc_redist_root, 'debug_nonredist',
207 'arm64', 'Microsoft.VC141.DebugCRT')
208 for file_part in ('msvcp', 'vccorlib', 'vcruntime'):
209 dll = dll_pattern % file_part
210 target = os.path.join(target_dir, dll)
211 source = os.path.join(source_dir, dll)
212 _CopyRuntimeImpl(target, source)
213 # Copy the UCRT files from the Windows SDK. This location includes the
214 # api-ms-win-crt-*.dll files that are not found in the Windows directory.
215 # These files are needed for component builds. If WINDOWSSDKDIR is not set
216 # use the default SDK path. This will be the case when
217 # DEPOT_TOOLS_WIN_TOOLCHAIN=0 and vcvarsall.bat has not been run.
218 win_sdk_dir = os.path.normpath(
219 os.environ.get('WINDOWSSDKDIR',
220 os.path.expandvars('%ProgramFiles(x86)%'
221 '\\Windows Kits\\10')))
222 # ARM64 doesn't have a redist for the ucrt DLLs because they are always
224 if target_cpu != 'arm64':
225 # Starting with the 10.0.17763 SDK the ucrt files are in a version-named
226 # directory - this handles both cases.
227 redist_dir = os.path.join(win_sdk_dir, 'Redist')
228 version_dirs = glob.glob(os.path.join(redist_dir, '10.*'))
229 if len(version_dirs) > 0:
230 version_dirs.sort(reverse=True)
231 redist_dir = version_dirs[0]
232 ucrt_dll_dirs = os.path.join(redist_dir, 'ucrt', 'DLLs', target_cpu)
233 ucrt_files = glob.glob(os.path.join(ucrt_dll_dirs, 'api-ms-win-*.dll'))
234 assert len(ucrt_files) > 0
235 for ucrt_src_file in ucrt_files:
236 file_part = os.path.basename(ucrt_src_file)
237 ucrt_dst_file = os.path.join(target_dir, file_part)
238 _CopyRuntimeImpl(ucrt_dst_file, ucrt_src_file, False)
239 # We must copy ucrtbase.dll for x64/x86, and ucrtbased.dll for all CPU types.
240 if target_cpu != 'arm64' or not suffix.startswith('.'):
241 if not suffix.startswith('.'):
242 # ucrtbased.dll is located at {win_sdk_dir}/bin/{a.b.c.d}/{target_cpu}/
244 sdk_redist_root = os.path.join(win_sdk_dir, 'bin')
245 sdk_bin_sub_dirs = os.listdir(sdk_redist_root)
246 # Select the most recent SDK if there are multiple versions installed.
247 sdk_bin_sub_dirs.sort(reverse=True)
248 for directory in sdk_bin_sub_dirs:
249 sdk_redist_root_version = os.path.join(sdk_redist_root, directory)
250 if not os.path.isdir(sdk_redist_root_version):
252 if re.match('10\.\d+\.\d+\.\d+', directory):
253 source_dir = os.path.join(sdk_redist_root_version, target_cpu, 'ucrt')
255 _CopyRuntimeImpl(os.path.join(target_dir, 'ucrtbase' + suffix),
256 os.path.join(source_dir, 'ucrtbase' + suffix))
259 def FindVCComponentRoot(component):
260 """Find the most recent Tools or Redist or other directory in an MSVC install.
261 Typical results are {toolchain_root}/VC/{component}/MSVC/{x.y.z}. The {x.y.z}
262 version number part changes frequently so the highest version number found is
265 assert GetVisualStudioVersion() in ['2017', '2019']
266 SetEnvironmentAndGetRuntimeDllDirs()
267 assert ('GYP_MSVS_OVERRIDE_PATH' in os.environ)
268 vc_component_msvc_root = os.path.join(os.environ['GYP_MSVS_OVERRIDE_PATH'],
269 'VC', component, 'MSVC')
270 vc_component_msvc_contents = os.listdir(vc_component_msvc_root)
271 # Select the most recent toolchain if there are several.
272 vc_component_msvc_contents.sort(reverse=True)
273 for directory in vc_component_msvc_contents:
274 if not os.path.isdir(os.path.join(vc_component_msvc_root, directory)):
276 if re.match('14\.\d+\.\d+', directory):
277 return os.path.join(vc_component_msvc_root, directory)
278 raise Exception('Unable to find the VC %s directory.' % component)
281 def FindVCRedistRoot():
282 """In >=VS2017, Redist binaries are located in
283 {toolchain_root}/VC/Redist/MSVC/{x.y.z}/{target_cpu}/.
285 This returns the '{toolchain_root}/VC/Redist/MSVC/{x.y.z}/' path.
287 return FindVCComponentRoot('Redist')
290 def _CopyRuntime(target_dir, source_dir, target_cpu, debug):
291 """Copy the VS runtime DLLs, only if the target doesn't exist, but the target
292 directory does exist. Handles VS 2015, 2017 and 2019."""
293 suffix = 'd.dll' if debug else '.dll'
294 # VS 2015, 2017 and 2019 use the same CRT DLLs.
295 _CopyUCRTRuntime(target_dir, source_dir, target_cpu, '%s140' + suffix,
299 def CopyDlls(target_dir, configuration, target_cpu):
300 """Copy the VS runtime DLLs into the requested directory as needed.
302 configuration is one of 'Debug' or 'Release'.
303 target_cpu is one of 'x86', 'x64' or 'arm64'.
305 The debug configuration gets both the debug and release DLLs; the
306 release config only the latter.
308 vs_runtime_dll_dirs = SetEnvironmentAndGetRuntimeDllDirs()
309 if not vs_runtime_dll_dirs:
312 x64_runtime, x86_runtime, arm64_runtime = vs_runtime_dll_dirs
313 if target_cpu == 'x64':
314 runtime_dir = x64_runtime
315 elif target_cpu == 'x86':
316 runtime_dir = x86_runtime
317 elif target_cpu == 'arm64':
318 runtime_dir = arm64_runtime
320 raise Exception('Unknown target_cpu: ' + target_cpu)
321 _CopyRuntime(target_dir, runtime_dir, target_cpu, debug=False)
322 if configuration == 'Debug':
323 _CopyRuntime(target_dir, runtime_dir, target_cpu, debug=True)
324 _CopyDebugger(target_dir, target_cpu)
327 def _CopyDebugger(target_dir, target_cpu):
328 """Copy dbghelp.dll and dbgcore.dll into the requested directory as needed.
330 target_cpu is one of 'x86', 'x64' or 'arm64'.
332 dbghelp.dll is used when Chrome needs to symbolize stacks. Copying this file
333 from the SDK directory avoids using the system copy of dbghelp.dll which then
334 ensures compatibility with recent debug information formats, such as VS
335 2017 /debug:fastlink PDBs.
337 dbgcore.dll is needed when using some functions from dbghelp.dll (like
340 win_sdk_dir = SetEnvironmentAndGetSDKDir()
344 # List of debug files that should be copied, the first element of the tuple is
345 # the name of the file and the second indicates if it's optional.
346 debug_files = [('dbghelp.dll', False), ('dbgcore.dll', True)]
347 for debug_file, is_optional in debug_files:
348 full_path = os.path.join(win_sdk_dir, 'Debuggers', target_cpu, debug_file)
349 if not os.path.exists(full_path):
353 # TODO(crbug.com/773476): remove version requirement.
354 raise Exception('%s not found in "%s"\r\nYou must install the '
355 '"Debugging Tools for Windows" feature from the Windows'
357 % (debug_file, full_path))
358 target_path = os.path.join(target_dir, debug_file)
359 _CopyRuntimeImpl(target_path, full_path)
362 def _GetDesiredVsToolchainHashes():
363 """Load a list of SHA1s corresponding to the toolchains that we want installed
365 env_version = GetVisualStudioVersion()
366 if env_version == '2017':
367 # VS 2017 Update 9 (15.9.3) with 10.0.17763.132 SDK, 10.0.17134 version of
368 # d3dcompiler_47.dll, with ARM64 libraries.
369 toolchain_hash = '818a152b3f1da991c1725d85be19a0f27af6bab4'
370 # Third parties that do not have access to the canonical toolchain can map
371 # canonical toolchain version to their own toolchain versions.
372 toolchain_hash_mapping_key = 'GYP_MSVS_HASH_%s' % toolchain_hash
373 return [os.environ.get(toolchain_hash_mapping_key, toolchain_hash)]
374 raise Exception('Unsupported VS version %s' % env_version)
377 def ShouldUpdateToolchain():
378 """Check if the toolchain should be upgraded."""
379 if not os.path.exists(json_data_file):
381 with open(json_data_file, 'r') as tempf:
382 toolchain_data = json.load(tempf)
383 version = toolchain_data['version']
384 env_version = GetVisualStudioVersion()
385 # If there's a mismatch between the version set in the environment and the one
386 # in the json file then the toolchain should be updated.
387 return version != env_version
390 def Update(force=False):
391 """Requests an update of the toolchain to the specific hashes we have at
392 this revision. The update outputs a .json of the various configuration
393 information required to pass to gyp which we use in |GetToolchainDir()|.
395 if force != False and force != '--force':
396 print >>sys.stderr, 'Unknown parameter "%s"' % force
398 if force == '--force' or os.path.exists(json_data_file):
401 depot_tools_win_toolchain = \
402 bool(int(os.environ.get('DEPOT_TOOLS_WIN_TOOLCHAIN', '1')))
403 if ((sys.platform in ('win32', 'cygwin') or force) and
404 depot_tools_win_toolchain):
405 import find_depot_tools
406 depot_tools_path = find_depot_tools.add_depot_tools_to_path()
408 # On Linux, the file system is usually case-sensitive while the Windows
409 # SDK only works on case-insensitive file systems. If it doesn't already
410 # exist, set up a ciopfs fuse mount to put the SDK in a case-insensitive
411 # part of the file system.
412 toolchain_dir = os.path.join(depot_tools_path, 'win_toolchain', 'vs_files')
413 # For testing this block, unmount existing mounts with
414 # fusermount -u third_party/depot_tools/win_toolchain/vs_files
415 if sys.platform.startswith('linux') and not os.path.ismount(toolchain_dir):
416 import distutils.spawn
417 ciopfs = distutils.spawn.find_executable('ciopfs')
419 # ciopfs not found in PATH; try the one downloaded from the DEPS hook.
420 ciopfs = os.path.join(script_dir, 'ciopfs')
421 if not os.path.isdir(toolchain_dir):
422 os.mkdir(toolchain_dir)
423 if not os.path.isdir(toolchain_dir + '.ciopfs'):
424 os.mkdir(toolchain_dir + '.ciopfs')
425 # Without use_ino, clang's #pragma once and Wnonportable-include-path
426 # both don't work right, see https://llvm.org/PR34931
427 # use_ino doesn't slow down builds, so it seems there's no drawback to
428 # just using it always.
429 subprocess.check_call([
430 ciopfs, '-o', 'use_ino', toolchain_dir + '.ciopfs', toolchain_dir])
432 # Necessary so that get_toolchain_if_necessary.py will put the VS toolkit
433 # in the correct directory.
434 os.environ['GYP_MSVS_VERSION'] = GetVisualStudioVersion()
435 get_toolchain_args = [
437 os.path.join(depot_tools_path,
439 'get_toolchain_if_necessary.py'),
440 '--output-json', json_data_file,
441 ] + _GetDesiredVsToolchainHashes()
443 get_toolchain_args.append('--force')
444 subprocess.check_call(get_toolchain_args)
449 def NormalizePath(path):
450 while path.endswith('\\'):
455 def SetEnvironmentAndGetSDKDir():
456 """Gets location information about the current sdk (must have been
457 previously updated by 'update'). This is used for the GN build."""
458 SetEnvironmentAndGetRuntimeDllDirs()
460 # If WINDOWSSDKDIR is not set, search the default SDK path and set it.
461 if not 'WINDOWSSDKDIR' in os.environ:
462 default_sdk_path = os.path.expandvars('%ProgramFiles(x86)%'
463 '\\Windows Kits\\10')
464 if os.path.isdir(default_sdk_path):
465 os.environ['WINDOWSSDKDIR'] = default_sdk_path
467 return NormalizePath(os.environ['WINDOWSSDKDIR'])
470 def GetToolchainDir():
471 """Gets location information about the current toolchain (must have been
472 previously updated by 'update'). This is used for the GN build."""
473 runtime_dll_dirs = SetEnvironmentAndGetRuntimeDllDirs()
474 win_sdk_dir = SetEnvironmentAndGetSDKDir()
476 print '''vs_path = %s
482 ToGNString(NormalizePath(os.environ['GYP_MSVS_OVERRIDE_PATH'])),
483 ToGNString(win_sdk_dir),
484 ToGNString(GetVisualStudioVersion()),
485 ToGNString(NormalizePath(os.environ.get('WDK_DIR', ''))),
486 ToGNString(os.path.pathsep.join(runtime_dll_dirs or ['None'])))
492 'get_toolchain_dir': GetToolchainDir,
493 'copy_dlls': CopyDlls,
495 if len(sys.argv) < 2 or sys.argv[1] not in commands:
496 print >>sys.stderr, 'Expected one of: %s' % ', '.join(commands)
498 return commands[sys.argv[1]](*sys.argv[2:])
501 if __name__ == '__main__':