| # 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 python interpreter to use by default. On Windows, this will look |
| # for python3.exe and python3.bat. |
| script_executable = "python3" |
| |
| # 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 = [] |
| v8_experimental_extra_library_files = [] |
| v8_enable_gdbjit = false |
| v8_imminent_deprecation_warnings = 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" |
| |
| # Override ANGLE's Vulkan dependencies. |
| angle_vulkan_headers_dir = "//third_party/vulkan-deps/vulkan-headers/src" |
| angle_vulkan_loader_dir = "//third_party/vulkan-deps/vulkan-loader/src" |
| angle_vulkan_tools_dir = "//third_party/vulkan-deps/vulkan-tools/src" |
| angle_vulkan_validation_layers_dir = |
| "//third_party/vulkan-deps/vulkan-validation-layers/src" |
| |
| # Overwrite default args declared in the Fuchsia sdk |
| fuchsia_sdk_readelf_exec = |
| "//third_party/llvm-build/Release+Asserts/bin/llvm-readelf" |
| fuchsia_target_api_level = 7 |
| |
| devtools_visibility = [ "*" ] |
| } |
| |
| # These are the targets to skip header checking by default. The files in targets |
| # matching these patterns (see "gn help label_pattern" for format) will not have |
| # their includes checked for proper dependencies when you run either |
| # "gn check" or "gn gen --check". |
| no_check_targets = [ |
| "//headless:headless_non_renderer", # 9 errors |
| "//headless:headless_renderer", # 13 errors |
| "//headless:headless_shared_sources", # 4 errors |
| "//headless:headless_shell_browser_lib", # 10 errors |
| "//headless:headless_shell_lib", # 10 errors |
| |
| # //v8, https://crbug.com/v8/7330 |
| "//v8/src/inspector:inspector", # 20 errors |
| "//v8/test/cctest:cctest_sources", # 2 errors |
| "//v8:cppgc_base", # 1 error |
| "//v8:v8_internal_headers", # 11 errors |
| "//v8:v8_libplatform", # 2 errors |
| |
| # After making partition_alloc a standalone library, remove partition_alloc |
| # target from the skip list, because partition_aloc will depend on its own |
| # base. |
| # partition alloc standalone library bug is https://crbug.com/1151236. |
| "//base/allocator/partition_allocator:partition_alloc", # 292 errors |
| ] |
| |
| # 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. |
| # |
| # 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", |
| |
| "//chrome/android/webapk/shell_apk/prepare_upload_dir/BUILD.gn", |
| |
| # TODO(dgn): Layer violation but breaks the build otherwise, see |
| # https://crbug.com/474506. |
| "//clank/java/BUILD.gn", |
| "//clank/native/BUILD.gn", |
| |
| "//google_apis/BUILD.gn", |
| "//printing/BUILD.gn", |
| |
| "//remoting/host/installer/linux/BUILD.gn", |
| "//remoting/remoting_version.gni", |
| "//remoting/host/installer/win/generate_clsids.gni", |
| |
| "//tools/grit/grit_rule.gni", |
| "//tools/gritsettings/BUILD.gn", |
| ] |