# This file is used by the GN meta build system to find the root of the source # tree and to set startup options. For documentation on the values set in this # file, run "gn help dotfile" at the command line. import("//build/dotfile_settings.gni") import("//third_party/angle/dotfile_settings.gni") # The location of the build configuration file. buildconfig = "//build/config/BUILDCONFIG.gn" # The secondary source root is a parallel directory tree where # GN build files are placed when they can not be placed directly # in the source tree, e.g. for third party source trees. secondary_source = "//build/secondary/" # These arguments override the default values for items in a declare_args # block. "gn args" in turn can override these. # # In general the value for a build arg in the declare_args block should be the # default. In some cases, a DEPS-ed in project will want different defaults for # being built as part of Chrome vs. being built standalone. In this case, the # Chrome defaults should go here. There should be no overrides here for # values declared in the main Chrome repository. # # Important note for defining defaults: This file is executed before the # BUILDCONFIG.gn file. That file sets up the global variables like "is_ios". # This means that the default_args can not depend on the platform, # architecture, or other build parameters. If you really need that, the other # repo should define a flag that toggles on a behavior that implements the # additional logic required by Chrome to set the variables. default_args = { # TODO(brettw) bug 684096: Chrome on iOS does not build v8, so "gn gen" prints # a warning that "Build argument has no effect". When adding a v8 variable, it # also needs to be defined to src/ios/BUILD.gn (respectively removed from both # location when it is removed). v8_extra_library_files = [ # Dependencies used by the extra libraries. Putting them here causes them # to be executed first during snapshot creation. "//third_party/blink/renderer/core/streams/CommonOperations.js", "//third_party/blink/renderer/core/streams/CommonStrings.js", "//third_party/blink/renderer/core/streams/SimpleQueue.js", # Extra libraries. "//third_party/blink/renderer/core/streams/ByteLengthQueuingStrategy.js", "//third_party/blink/renderer/core/streams/CountQueuingStrategy.js", "//third_party/blink/renderer/core/streams/ReadableStream.js", "//third_party/blink/renderer/core/streams/WritableStream.js", "//third_party/blink/renderer/core/streams/TransformStream.js", ] v8_experimental_extra_library_files = [] v8_enable_gdbjit = false v8_imminent_deprecation_warnings = false # TODO(jochen): Remove this. http://crbug.com/v8/5830, # http://crbug.com/728583. v8_check_microtasks_scopes_consistency = false # Don't include webrtc's builtin task queue implementation. rtc_link_task_queue_impl = false # Don't include the iLBC audio codec. # TODO(bugs.webrtc.org/8396): Once WebRTC gets rid of its internal # deps on codecs, we can remove this. rtc_include_ilbc = false # Changes some setup for the Crashpad build to set them to build against # Chromium's zlib, base, etc. crashpad_dependencies = "chromium" } # These are the targets to check headers for by default. The files in targets # matching these patterns (see "gn help label_pattern" for format) will have # their includes checked for proper dependencies when you run either # "gn check" or "gn gen --check". check_targets = [ "//apps/*", "//ash/*", "//base/*", "//blink/*", "//build/*", "//cc/*", #"//chrome/android/*", # 13 errors "//chrome/app/*", "//chrome/app_shim/*", #"//chrome/browser/*", # ~1300 errors #"//chrome/browser:*", # ~600 errors "//chrome/browser/accessibility/*", "//chrome/browser/android/*", "//chrome/browser/app_mode/*", "//chrome/browser/apps/*", "//chrome/browser/assist_ranker/*", "//chrome/browser/autocomplete/*", "//chrome/browser/autofill/*", "//chrome/browser/background/*", "//chrome/browser/background_fetch/*", "//chrome/browser/background_sync/*", "//chrome/browser/banners/*", "//chrome/browser/bitmap_fetcher/*", "//chrome/browser/bookmarks/*", "//chrome/browser/browsing_data/*", "//chrome/browser/budget_service/*", "//chrome/browser/captive_portal/*", "//chrome/browser/chooser_controller/*", "//chrome/browser/chromeos/*", "//chrome/browser/client_hints/*", "//chrome/browser/clipboard/*", "//chrome/browser/component_updater/*", "//chrome/browser/conflicts/*", "//chrome/browser/consent_auditor/*", "//chrome/browser/content_settings/*", "//chrome/browser/crash_upload_list/*", "//chrome/browser/custom_handlers/*", "//chrome/browser/data_saver/*", "//chrome/browser/data_use_measurement/*", "//chrome/browser/dbus/*", #"//chrome/browser/devtools/*", # 93 errors "//chrome/browser/diagnostics/*", "//chrome/browser/domain_reliability/*", "//chrome/browser/dom_distiller/*", "//chrome/browser/downgrade/*", "//chrome/browser/download/*", "//chrome/browser/drive/*", "//chrome/browser/engagement/*", "//chrome/browser/extensions/*", "//chrome/browser/external_protocol/*", "//chrome/browser/favicon/*", "//chrome/browser/feature_engagement/*", "//chrome/browser/feedback/*", "//chrome/browser/first_run/*", "//chrome/browser/gcm/*", "//chrome/browser/generic_sensor/*", "//chrome/browser/geolocation/*", "//chrome/browser/google/*", "//chrome/browser/gpu/*", "//chrome/browser/guest_view/*", "//chrome/browser/hang_monitor/*", "//chrome/browser/history/*", "//chrome/browser/importer/*", "//chrome/browser/infobars/*", "//chrome/browser/installable/*", "//chrome/browser/install_verification/*", "//chrome/browser/internal/*", "//chrome/browser/interstitials/*", "//chrome/browser/invalidation/*", "//chrome/browser/language/*", "//chrome/browser/lifetime/*", #"//chrome/browser/loader/*", # 2 errors "//chrome/browser/local_discovery/*", "//chrome/browser/mac/*", #"//chrome/browser/media/*", # 74 errors "//chrome/browser/media_galleries/*", "//chrome/browser/memory/*", "//chrome/browser/metrics/*", "//chrome/browser/nacl_host/*", "//chrome/browser/navigation_predictor/*", "//chrome/browser/net/*", "//chrome/browser/notifications/*", "//chrome/browser/ntp_snippets/*", "//chrome/browser/ntp_tiles/*", "//chrome/browser/obsolete_system/*", "//chrome/browser/offline_items_collection/*", "//chrome/browser/offline_pages/*", "//chrome/browser/page_load_metrics/*", "//chrome/browser/password_manager/*", "//chrome/browser/payments/*", "//chrome/browser/pdf/*", "//chrome/browser/performance_monitor/*", "//chrome/browser/permissions/*", "//chrome/browser/picture_in_picture/*", "//chrome/browser/plugins/*", # "//chrome/browser/policy/*", # 1 error on Windows "//chrome/browser/predictors/*", "//chrome/browser/prefetch/*", "//chrome/browser/prefs/*", "//chrome/browser/prerender/*", "//chrome/browser/previews/*", "//chrome/browser/printing/*", "//chrome/browser/profile_resetter/*", "//chrome/browser/profiles/*", #"//chrome/browser/profiling_host/*", # 16 errors "//chrome/browser/push_messaging/*", "//chrome/browser/recovery/*", "//chrome/browser/renderer_context_menu/*", "//chrome/browser/renderer_host/*", "//chrome/browser/resource_coordinator/*", #"//chrome/browser/resources/*", # 18 errors on ChromeOS "//chrome/browser/rlz/*", #"//chrome/browser/safe_browsing/*", # 239 errors "//chrome/browser/search/*", "//chrome/browser/search_engines/*", "//chrome/browser/search_provider_logos/*", "//chrome/browser/service_process/*", "//chrome/browser/sessions/*", "//chrome/browser/signin/*", "//chrome/browser/speech/*", "//chrome/browser/spellchecker/*", "//chrome/browser/ssl/*", "//chrome/browser/status_icons/*", "//chrome/browser/storage/*", "//chrome/browser/subresource_filter/*", "//chrome/browser/supervised_user/*", "//chrome/browser/sync/*", "//chrome/browser/sync_file_system/*", "//chrome/browser/tab_contents/*", "//chrome/browser/task_manager/*", "//chrome/browser/themes/*", "//chrome/browser/thumbnails/*", "//chrome/browser/tracing/*", "//chrome/browser/translate/*", "//chrome/browser/ui/*", "//chrome/browser/undo/*", "//chrome/browser/unified_consent/*", "//chrome/browser/update_client/*", "//chrome/browser/upgrade_detector/*", "//chrome/browser/usb/*", "//chrome/browser/vr/*", "//chrome/browser/web_applications/*", "//chrome/browser/webauthn/*", "//chrome/browser/webshare/*", "//chrome/browser/win/*", "//chrome/build/*", #"//chrome/child/*", # 1 error on Windows "//chrome/chrome_cleaner/*", #"//chrome/chrome_watcher/*", # 3 errors on Windows "//chrome/common/*", #"//chrome/elevation_service/*", # 1 error on Windows #"//chrome/gpu/*", # 7 errors "//chrome/installer/*", #"//chrome/install_static/*", # 8 errors on Windows "//chrome/nacl/*", #"//chrome/notification_helper/*", # 4 errors on Windows #"//chrome/renderer/*", # ~30 errors #"//chrome/service/*", # 2 errors #"//chrome/services/*", # ~30 errors #"//chrome/test/*", # ~3000 errors "//chrome/third_party/*", "//chrome/tools/*", "//chrome/utility/*", "//chromecast/*", "//chromeos/*", "//chrome_elf/*", "//cloud_print/*", "//components/*", "//content/*", "//courgette/*", "//crypto/*", "//data/*", "//dbus/*", "//device/*", #"//extensions/*", # Lots of errors. "//extensions:extensions_resources", "//extensions:extensions_browsertests", "//extensions:extensions_unittests", "//extensions/browser", "//extensions/browser:browser_tests", "//extensions/browser:unit_tests", "//extensions/browser/install:*", "//extensions/common/*", "//extensions/components/javascript_dialog_extensions_client", "//extensions/components/native_app_window", "//extensions/renderer:unit_tests", "//extensions/shell/*", "//extensions/strings/*", "//gin/*", "//google_apis/*", "//google_update/*", "//gpu/*", "//ios/*", "//ios_internal/*", "//ipc/*", #"//jingle/*", "//mash/*", "//media/*", "//mojo/*", #"//native_client/*", "//net/*", #"//pdf/*", # Medium-hard. #"//ppapi/*", # Lots of errors. "//ppapi/examples/*", "//ppapi/tests/*", "//printing/*", #"//remoting/*", # Medium-hard. "//rlz/*", #"//sandbox/*", # Medium-hard. "//services/*", "//skia/*", "//sql/*", "//storage/*", "//testing/*", #"//third_party/*", # May not ever want this. #"//third_party/breakpad/*", # Small errors. "//third_party/boringssl/*", "//third_party/brotli/*", "//third_party/fuchsia-sdk/*", "//third_party/hunspell/*", "//third_party/leveldatabase/*", #"//third_party/libaddressinput/*", # Small errors. "//third_party/libphonenumber/*", #"//third_party/libwebp/*", # Errors: https://crbug.com/800762 "//third_party/snappy/*", #"//third_party/WebKit/*", # Errors: https://crbug.com/800764 #"//third_party/webrtc/*", # Errors: https://crbug.com/824831 "//third_party/webrtc_overrides/*", "//tools/*", "//ui/*", "//url/*", #"//v8/*", # Errors: https://bugs.chromium.org/p/v8/issues/detail?id=7330 "//webrunner/*", ] # These are the list of GN files that run exec_script. This whitelist exists # to force additional review for new uses of exec_script, which is strongly # discouraged. # # GYPI_TO_GN # # Some of these entries are for legacy gypi_to_gn calls. We should not be # adding new calls to this script in the build (see //build/gypi_to_gn.py for # detailed advice). The only time you should be editing this list for # gypi_to_gn purposes is when moving an existing call to a different place. # # PLEASE READ # # You should almost never need to add new exec_script calls. exec_script is # slow, especially on Windows, and can cause confusing effects. Although # individually each call isn't slow or necessarily very confusing, at the scale # of our repo things get out of hand quickly. By strongly pushing back on all # additions, we keep the build fast and clean. If you think you need to add a # new call, please consider: # # - Do not use a script to check for the existence of a file or directory to # enable a different mode. Instead, use GN build args to enable or disable # functionality and set options. An example is checking for a file in the # src-internal repo to see if the corresponding src-internal feature should # be enabled. There are several things that can go wrong with this: # # - It's mysterious what causes some things to happen. Although in many cases # such behavior can be conveniently automatic, GN optimizes for explicit # and obvious behavior so people can more easily diagnose problems. # # - The user can't enable a mode for one build and not another. With GN build # args, the user can choose the exact configuration of multiple builds # using one checkout. But implicitly basing flags on the state of the # checkout, this functionality is broken. # # - It's easy to get stale files. If for example the user edits the gclient # to stop checking out src-internal (or any other optional thing), it's # easy to end up with stale files still mysteriously triggering build # conditions that are no longer appropriate (yes, this happens in real # life). # # - Do not use a script to iterate files in a directory (glob): # # - This has the same "stale file" problem as the above discussion. Various # operations can leave untracked files in the source tree which can cause # surprising effects. # # - It becomes impossible to use "git grep" to find where a certain file is # referenced. This operation is very common and people really do get # confused when things aren't listed. # # - It's easy to screw up. One common case is a build-time script that packs # up a directory. The author notices that the script isn't re-run when the # directory is updated, so adds a glob so all the files are listed as # inputs. This seems to work great... until a file is deleted. When a # file is deleted, all the inputs the glob lists will still be up to date # and no command-lines will have been changed. The action will not be # re-run and the build will be broken. It is possible to get this correct # using glob, and it's possible to mess it up without glob, but globs make # this situation much easier to create. if the build always lists the # files and passes them to a script, it will always be correct. exec_script_whitelist = build_dotfile_settings.exec_script_whitelist + angle_dotfile_settings.exec_script_whitelist + [ # Whitelist entries for //build should go into # //build/dotfile_settings.gni instead, so that they can be shared # with other repos. The entries in this list should be only for files # in the Chromium repo outside of //build. "//build_overrides/build.gni", # TODO(dgn): Layer violation but breaks the build otherwise, see # https://crbug.com/474506. "//clank/java/BUILD.gn", "//clank/native/BUILD.gn", "//remoting/host/installer/linux/BUILD.gn", "//remoting/remoting_version.gni", "//remoting/host/installer/win/generate_clsids.gni", # TODO(dpranke): Get these from the appropriate repos instead. "//third_party/catapult/tracing/BUILD.gn", "//third_party/google_input_tools/inputview.gni", "//tools/grit/grit_rule.gni", # Not gypi-to-gn. "//google_apis/BUILD.gn", "//printing/BUILD.gn", ]