## LIST OF ALL POSSIBLE GN ARGUMENTS FOR WINDOWS action_pool_depth Current value (from the default) = -1 From //build/toolchain/BUILD.gn:11 Pool for non goma tasks. added_rust_stdlib_libs Current value (from the default) = [] From //build/config/rust.gni:82 Any extra std rlibs in your Rust toolchain, relative to the standard Rust toolchain. Typically used with 'rust_sysroot_absolute' allow_critical_memory_pressure_handling_in_foreground Current value (from the default) = false From //content/common/features.gni:16 allow_jni_multiplexing Current value (from the default) = false From //third_party/jni_zero/jni_zero.gni:12 Enables JNI multiplexing to reduce JNI native methods overhead. allow_runtime_configurable_key_storage Current value (from the default) = false From //components/os_crypt/sync/features.gni:13 Whether to make account and service names for the crypto key storage configurable at runtime for embedders. Currently only has an effect on macOS via KeychainPassword also_build_ash_chrome Current value (from the default) = false From //build/config/chromeos/ui_mode.gni:26 Setting this to true when building linux Lacros-chrome will cause it to *also* build linux ash-chrome in a subdirectory using an alternate toolchain. Don't set this unless you're sure you want it, because it'll double your build time. also_build_lacros_chrome Current value (from the default) = false From //build/config/chromeos/ui_mode.gni:30 Setting this to true when building linux ash-chrome will cause it to *also* build linux Lacros-chrome in a subdirectory using an alternate toolchain. also_build_lacros_chrome_for_architecture Current value (from the default) = "" From //build/config/chromeos/ui_mode.gni:35 Setting this when building ash-chrome will cause it to *also* build Lacros-chrome in a subdirectory using an alternate toolchain. You can set this to either "amd64" or "arm". alternate_cdm_storage_id_key Current value (from the default) = "" From //media/media_options.gni:252 If |enable_cdm_storage_id| is set, then an implementation specific key must also be provided. It can be provided by defining CDM_STORAGE_ID_KEY (which takes precedence), or by setting |alternate_cdm_storage_id_key|. The key must be a string of at least 32 characters. android_channel Current value (from the default) = "default" From //build/config/android/channel.gni:8 The channel to build on Android: stable, beta, dev, canary, work, or default. "default" should be used on non-official builds. android_full_debug Current value (from the default) = false From //build/config/compiler/BUILD.gn:62 Normally, Android builds are lightly optimized, even for debug builds, to keep binary size down. Setting this flag to true disables such optimization angle_64bit_current_cpu Current value (from the default) = true From //third_party/angle/gni/angle.gni:114 angle_assert_always_on Current value (from the default) = true From //third_party/angle/gni/angle.gni:108 angle_build_all Current value (from the default) = false From //third_party/angle/BUILD.gn:44 Don't build extra (test, samples etc) for Windows UWP. We don't have infrastructure (e.g. windowing helper functions) in place to run them. Also don't build them with MSVC, because tests and unused dependencies often have problems building with it, e.g. for C++20. angle_build_capture_replay_tests Current value (from the default) = false From //third_party/angle/src/tests/capture_replay_tests/BUILD.gn:10 Determines if we build the capture_replay_tests. Off by default. angle_build_mesa Current value (from the default) = false From //third_party/angle/gni/angle.gni:293 angle_build_tests Current value (from the default) = true From //third_party/angle/gni/angle.gni:306 True if we want to build the ANGLE test suites. On by default in most configs. angle_build_vulkan_system_info Current value (from the default) = true From //third_party/angle/gni/angle.gni:287 angle_capture_replay_composite_file_id Current value (from the default) = 1 From //third_party/angle/src/tests/capture_replay_tests/BUILD.gn:15 angle_capture_replay_test_trace_dir Current value (from the default) = "traces" From //third_party/angle/src/tests/capture_replay_tests/BUILD.gn:13 Set the trace directory. Default is traces angle_debug_layers_enabled Current value (from the default) = true From //third_party/angle/gni/angle.gni:129 By default we enable debug layers when asserts are turned on. angle_delegate_workers Current value (from the default) = true From //third_party/angle/gni/angle.gni:165 By default, ANGLE is using a thread pool for parallel compilation. Activating the delegate worker results in posting the tasks using the embedder API. In Chromium code base, it results in sending tasks to the worker thread pool. angle_dump_pipeline_cache_graph Current value (from the default) = false From //third_party/angle/gni/angle.gni:241 angle_egl_extension Current value (from the default) = "" From //third_party/angle/BUILD.gn:64 Allow shared library custom name extensions for setting soname such as libEGL.so.1 angle_enable_abseil Current value (from the default) = true From //third_party/angle/BUILD.gn:52 Abseil has trouble supporting MSVC, particularly regarding component builds. http://crbug.com/1126524 angle_enable_annotator_run_time_checks Current value (from the default) = false From //third_party/angle/BUILD.gn:55 Adds run-time checks to filter out EVENT() messages when the debug annotator is disabled. angle_enable_apple_translator_workarounds Current value (from the default) = false From //third_party/angle/gni/angle.gni:301 angle_enable_cgl Current value (from the default) = false From //third_party/angle/gni/angle.gni:298 TODO(jdarpinian): Support enabling CGL and EAGL at the same time using the soft linking code. Also support disabling both for Metal-only builds. angle_enable_cl Current value (from the default) = false From //third_party/angle/gni/angle.gni:21 Enables OpenCL support, off by default. angle_enable_cl_passthrough Current value (from the default) = false From //third_party/angle/gni/angle.gni:197 Enables the OpenCL pass-through back end angle_enable_commit_id Current value (from the default) = true From //third_party/angle/BUILD.gn:48 Enable generating current commit information using git angle_enable_context_mutex Current value (from the default) = true From //third_party/angle/BUILD.gn:84 angle_enable_context_mutex_recursion Current value (from the default) = false From //third_party/angle/BUILD.gn:94 May need to enable to fix recursion when vkAcquireNextImageKHR() returns back to ANGLE from eglClientWaitSyncKHR(). May happen if Android Presentation Engine uses EGL_KHR_fence_sync instead of EGL_ANDROID_native_fence_sync for synchronization. To check call: adb shell "dumpsys SurfaceFlinger | grep 'Sync configuration'" The Android's "testDrawingHardwareBitmapNotLeaking" test may be used for testing. Disable this option to save performance on platforms that does not require recursion. angle_enable_crc_for_pipeline_cache Current value (from the default) = true From //third_party/angle/src/libANGLE/renderer/vulkan/BUILD.gn:36 Enable using CRC for pipeline cache data angle_enable_custom_vulkan_cmd_buffers Current value (from the default) = true From //third_party/angle/src/libANGLE/renderer/vulkan/BUILD.gn:17 Enable custom (cpu-side) secondary command buffers angle_enable_custom_vulkan_outside_render_pass_cmd_buffers Current value (from the default) = true From //third_party/angle/src/libANGLE/renderer/vulkan/BUILD.gn:26 angle_enable_custom_vulkan_render_pass_cmd_buffers Current value (from the default) = true From //third_party/angle/src/libANGLE/renderer/vulkan/BUILD.gn:30 angle_enable_d3d11 Current value (from the default) = true From //third_party/angle/gni/angle.gni:171 angle_enable_d3d11_compositor_native_window Current value (from the default) = false From //third_party/angle/gni/angle.gni:265 angle_enable_d3d9 Current value (from the default) = true From //third_party/angle/gni/angle.gni:170 angle_enable_desktop_glsl Current value (from the default) = false From //third_party/angle/gni/angle.gni:232 Translator frontend support: angle_enable_eagl Current value (from the default) = false From //third_party/angle/gni/angle.gni:271 We should use EAGL (ES) on iOS except on Mac Catalyst on Intel CPUs, which uses CGL (desktop GL). angle_enable_essl Current value (from the default) = true From //third_party/angle/gni/angle.gni:236 angle_enable_gl Current value (from the default) = true From //third_party/angle/gni/angle.gni:173 angle_enable_gl_desktop_backend Current value (from the default) = true From //third_party/angle/gni/angle.gni:191 angle_enable_gl_desktop_frontend Current value (from the default) = false From //third_party/angle/gni/angle.gni:29 Enable Desktop GL frontend support. angle_enable_gl_null Current value (from the default) = true From //third_party/angle/src/libANGLE/renderer/gl/gl_backend.gni:8 angle_enable_global_mutex_load_time_allocate Current value (from the default) = false From //third_party/angle/BUILD.gn:82 angle_enable_global_mutex_recursion Current value (from the default) = false From //third_party/angle/BUILD.gn:77 angle_enable_glsl Current value (from the default) = true From //third_party/angle/gni/angle.gni:237 angle_enable_hlsl Current value (from the default) = true From //third_party/angle/gni/angle.gni:235 Translator backend support: angle_enable_memory_alloc_logging Current value (from the default) = false From //third_party/angle/gni/angle.gni:249 Memory allocation logging support. This feature is for debugging only. Disabled by default. angle_enable_metal Current value (from the default) = false From //third_party/angle/gni/angle.gni:194 http://anglebug.com/2634 angle_enable_null Current value (from the default) = true From //third_party/angle/gni/angle.gni:190 Disable null backend to save space for official build. angle_enable_overlay Current value (from the default) = true From //third_party/angle/gni/angle.gni:291 Enable overlay by default when debug layers are enabled. This is currently only implemented on Vulkan. angle_enable_perf_counter_output Current value (from the default) = false From //third_party/angle/gni/angle.gni:268 Disable performance counter output by default angle_enable_renderdoc Current value (from the default) = true From //third_party/angle/gni/angle.gni:310 angle_enable_share_context_lock Current value (from the default) = false From //third_party/angle/BUILD.gn:69 angle_enable_swiftshader Current value (from the default) = true From //third_party/angle/gni/angle.gni:229 angle_enable_trace Current value (from the default) = false From //third_party/angle/gni/angle.gni:238 angle_enable_trace_android_logcat Current value (from the default) = false From //third_party/angle/gni/angle.gni:239 angle_enable_trace_events Current value (from the default) = false From //third_party/angle/gni/angle.gni:240 angle_enable_unwind_backtrace_support Current value (from the default) = false From //third_party/angle/gni/angle.gni:245 Unwind backtrace support. This feature is currently only implemented on Android for debugging purposes. Disabled by default. angle_enable_vulkan Current value (from the default) = true From //third_party/angle/gni/angle.gni:178 angle_enable_vulkan_gpu_trace_events Current value (from the default) = false From //third_party/angle/src/libANGLE/renderer/vulkan/BUILD.gn:20 Enable Vulkan GPU trace event capability angle_enable_vulkan_shared_ring_buffer_cmd_alloc Current value (from the default) = false From //third_party/angle/src/libANGLE/renderer/vulkan/BUILD.gn:33 Enable shared ring buffer command buffer allocator angle_enable_vulkan_system_info Current value (from the default) = false From //third_party/angle/BUILD.gn:35 Enable using Vulkan to collect system info as a fallback. angle_enable_vulkan_validation_layers Current value (from the default) = true From //third_party/angle/gni/angle.gni:258 angle_enable_wgpu Current value (from the default) = true From //third_party/angle/gni/angle.gni:200 Disable WGPU backend. angle_expose_glx_entry_points Current value (from the default) = false From //third_party/angle/gni/angle.gni:40 Expose GLX entry points by default when using Desktop GL on Linux. angle_expose_non_conformant_extensions_and_versions Current value (from the default) = false From //third_party/angle/BUILD.gn:58 Enables non-conformant extensions and features angle_expose_wgl_entry_points Current value (from the default) = false From //third_party/angle/gni/angle.gni:37 Expose WGL entry points, which is necessary for running windows desktop GL applications against ANGLE. TODO(http://anglebug.com/7628): This condition should be `angle_enable_gl_desktop_frontend && is_win` This is disabled by default on Windows because it was causing some test failures. Once the WGL frontend has more functionality implemented, we can re-enable this. angle_extract_native_libs Current value (from the default) = false From //third_party/angle/gni/angle.gni:11 Extract native libs in ANGLE apk. Useful for flamegraph generation. angle_force_context_check_every_call Current value (from the default) = false From //third_party/angle/BUILD.gn:61 Optional feature that forces dirty state whenever we use a new context regardless of thread. angle_glesv2_extension Current value (from the default) = "" From //third_party/angle/BUILD.gn:65 angle_has_astc_encoder Current value (from the default) = false From //third_party/angle/gni/angle.gni:205 ASTC emulation is only built on standalone non-android builds angle_has_frame_capture Current value (from the default) = true From //third_party/angle/gni/angle.gni:157 Frame capture code is enabled by default if rapidjson is available. angle_has_histograms Current value (from the default) = true From //third_party/angle/gni/angle.gni:303 angle_has_rapidjson Current value (from the default) = true From //third_party/angle/gni/angle.gni:124 Indicate if the rapidJSON library is available to build with in third_party/. angle_is_msvc Current value (from the default) = false From //third_party/angle/gni/angle.gni:144 angle_is_winuwp Current value (from the default) = false From //third_party/angle/gni/angle.gni:143 There's no "is_winuwp" helper in BUILDCONFIG.gn, so we define one ourselves angle_libs_suffix Current value (from the default) = "" From //third_party/angle/gni/angle.gni:150 angle_link_glx Current value (from the default) = false From //third_party/angle/BUILD.gn:38 Link in system libGL, to work with apitrace. See doc/DebuggingTips.md. angle_restricted_traces Current value (from the default) = [] From //third_party/angle/gni/angle.gni:23 angle_shared_libvulkan Current value (from the default) = true From //third_party/angle/gni/angle.gni:140 Vulkan loader is statically linked on Mac. http://anglebug.com/4477 angle_standalone Current value (from the default) = false From //third_party/angle/gni/angle.gni:168 True if we are building inside an ANGLE checkout. angle_test_enable_system_egl Current value (from the default) = false From //third_party/angle/gni/angle.gni:209 angle_use_custom_libvulkan Current value (from the default) = true From //third_party/angle/src/common/vulkan/BUILD.gn:13 angle_use_gbm Current value (from the default) = false From //third_party/angle/gni/angle.gni:67 angle_use_vulkan_display Current value (from the default) = false From //third_party/angle/gni/angle.gni:71 angle_use_vulkan_null_display Current value (from the default) = false From //third_party/angle/gni/angle.gni:187 When set to true, ANGLE will not use VK_KHR_surface and VK_KHR_swapchain extensions. Content can be rendered only off-screen. angle_use_wayland Current value (from the default) = false From //third_party/angle/gni/angle.gni:70 angle_use_x11 Current value (from the default) = false From //third_party/angle/gni/angle.gni:68 angle_vulkan_display_mode Current value (from the default) = "simple" From //third_party/angle/gni/angle.gni:14 Display mode for ANGLE vulkan display, could be 'simple' or 'headless', default is 'simple'. angle_vulkan_headers_dir Current value = "//third_party/vulkan-deps/vulkan-headers/src" From //.gn:58 Overridden from the default = "//third_party/angle/third_party/vulkan-deps/vulkan-headers/src" From //third_party/angle/gni/angle.gni:279 angle_vulkan_loader_dir Current value = "//third_party/vulkan-deps/vulkan-loader/src" From //.gn:59 Overridden from the default = "//third_party/angle/third_party/vulkan-deps/vulkan-loader/src" From //third_party/angle/gni/angle.gni:281 angle_vulkan_tools_dir Current value = "//third_party/vulkan-deps/vulkan-tools/src" From //.gn:60 Overridden from the default = "//third_party/angle/third_party/vulkan-deps/vulkan-tools/src" From //third_party/angle/gni/angle.gni:283 angle_vulkan_validation_layers_dir Current value = "//third_party/vulkan-deps/vulkan-validation-layers/src" From //.gn:62 Overridden from the default = "//third_party/angle/third_party/vulkan-deps/vulkan-validation-layers/src" From //third_party/angle/gni/angle.gni:285 angle_wayland_dir Current value (from the default) = "//third_party/angle/third_party/wayland" From //third_party/angle/gni/angle.gni:276 Directory where to find wayland source files angle_with_capture_by_default Current value (from the default) = false From //third_party/angle/gni/angle.gni:18 Defaults to capture building to $root_out_dir/angle_libs/with_capture. Switch on to build capture to $root_out_dir. apm_debug_dump Current value (from the default) = false From //third_party/webrtc/webrtc.gni:129 Selects whether debug dumps for the audio processing module should be generated. archive_seed_corpus Current value (from the default) = true From //build/config/sanitizers/sanitizers.gni:105 When true, seed corpora archives are built. auto_profile_path Current value (from the default) = "" From //build/config/compiler/BUILD.gn:88 AFDO (Automatic Feedback Directed Optimizer) is a form of profile-guided optimization that GCC supports. It used by ChromeOS in their official builds. To use it, set auto_profile_path to the path to a file containing the needed gcov profiling data. backup_ref_ptr_poison_oob_ptr Current value (from the default) = false From //base/allocator/partition_allocator/partition_alloc.gni:220 Set to `enable_backup_ref_ptr_support && has_64_bit_pointers` when enabling. blink_animation_use_time_delta Current value (from the default) = false From //third_party/blink/renderer/core/animation/BUILD.gn:11 Use base::TimeDelta to represent time in renderer/core/animations. See http://crbug.com/737867 blink_enable_generated_code_formatting Current value (from the default) = false From //third_party/blink/renderer/config.gni:26 Format the generated files to improve the code readability. Apply clang- format, gn format, etc. to the generated files if possible. blink_gc_plugin Current value (from the default) = true From //third_party/blink/renderer/BUILD.gn:18 Set to true to enable the clang plugin that checks the usage of the Blink garbage-collection infrastructure during compilation. blink_gc_plugin_option_do_dump_graph Current value (from the default) = false From //third_party/blink/renderer/BUILD.gn:22 Set to true to have the clang Blink GC plugin emit class graph (in JSON) with typed pointer edges; for debugging or other (internal) uses. blink_gc_plugin_option_warn_unneeded_finalizer Current value (from the default) = false From //third_party/blink/renderer/BUILD.gn:27 Set to true to have the clang Blink GC plugin additionally check if a class has an empty destructor which would be unnecessarily invoked when finalized. blink_heap_inside_shared_library Current value (from the default) = true From //third_party/blink/renderer/platform/heap/BUILD.gn:17 Whether the blink heap code is compiled into a shared library. Embedders like CEF use this flag to include blink in a shared library under non-component build. blink_symbol_level Current value (from the default) = -1 From //third_party/blink/renderer/config.gni:40 How many symbols to include in the build of blink. This affects the performance of the build since the symbols are large and dealing with them is slow. 2 means regular build with symbols. 1 means medium symbols, usually enough for backtraces only. Symbols with internal linkage (static functions or those in anonymous namespaces) may not appear when using this level. On some platforms (including Windows) filenames and line numbers will be included. Information about types and locals is not included. 0 means minimal symbols, which on some platforms (including Windows) may include function names suitable for backtraces. -1 means auto-set according to debug/release and platform. branding_file_path Current value (from the default) = "//chrome/app/theme/chromium/BRANDING" From //build/config/chrome_build.gni:76 The path to the BRANDING file in chrome/app/theme. branding_path_component Current value (from the default) = "chromium" From //build/config/chrome_build.gni:69 branding_path_product Current value (from the default) = "chromium" From //build/config/chrome_build.gni:70 build_allocation_stack_trace_recorder Current value (from the default) = false From //base/debug/debug.gni:18 build_allocation_trace_recorder_full_reporting Current value (from the default) = false From //base/debug/debug.gni:28 If enabled, the recorder gathers some additional information, i.e. number of collisions of slots, and prints these periodically. Since this might impact performance negatively, it's disabled by default. Even if it's disabled we still collect some data, i.e. total number of allocations. All other data will be set to a default value. build_angle_deqp_tests Current value (from the default) = false From //third_party/angle/gni/angle.gni:26 Don't build dEQP by default. build_angle_gles1_conform_tests Current value (from the default) = false From //third_party/angle/src/tests/BUILD.gn:10 build_angle_perftests Current value (from the default) = true From //third_party/angle/src/tests/BUILD.gn:13 build_angle_trace_perf_tests Current value (from the default) = false From //third_party/angle/src/tests/BUILD.gn:11 build_angle_trace_tests Current value (from the default) = false From //third_party/angle/src/tests/BUILD.gn:17 build_contextual_search Current value (from the default) = false From //components/contextual_search/features.gni:6 build_dawn_tests Current value (from the default) = true From //ui/gl/features.gni:27 Should Dawn test binaries (unittests, end2end_tests, perf_tests) be built? Independent of use_dawn, which controls whether Dawn is used in Chromium. build_libsrtp_tests Current value (from the default) = false From //third_party/libsrtp/BUILD.gn:10 Tests may not be appropriate for some build environments, e.g. Windows. Rather than enumerate valid options, we just let clients ask for them. build_tflite_with_ruy Current value (from the default) = true From //third_party/tflite/features.gni:16 Turns on TFLITE_WITH_RUY, using ruy as the gemm backend instead of gemmlowp. build_tflite_with_xnnpack Current value (from the default) = true From //third_party/tflite/features.gni:11 build_webnn_with_tflite_model_loader Current value (from the default) = false From //third_party/blink/renderer/modules/ml/webnn/features.gni:15 This build flag enables WebNN to access hardware acceleration using TFLite via the ModelLoader mojo interface. build_webnn_with_xnnpack Current value (from the default) = true From //third_party/blink/renderer/modules/ml/webnn/features.gni:9 This enables building WebNN with XNNPACK. Currently only available for Windows, macOS and Linux on x64, x86 and arm64. build_with_internal_optimization_guide Current value (from the default) = false From //components/optimization_guide/features.gni:41 When TFLite works for windows arm64, this lib should just work seamlessly. Use is_chrome_branded as a proxy for "does src-internal exist". build_with_mediapipe_lib Current value (from the default) = false From //third_party/mediapipe/features.gni:11 This should only be changed in a local args.gn file for now. This library is not ready to be built into Chromium yet. MediaPipe support is under development, but should work on Linux and Windows Intel chips. build_with_mozilla Current value (from the default) = false From //third_party/webrtc/webrtc.gni:156 Enable to use the Mozilla internal settings. build_with_tflite_lib Current value (from the default) = true From //components/optimization_guide/features.gni:14 This enables build with TFLite library. TODO(b/269198471): Make sure the internal archive files for opt guide get updated when win arm64 gets added as a supported platform for TFLite. bundle_widevine_cdm Current value (from the default) = false From //third_party/widevine/cdm/widevine.gni:58 Widevine CDM is bundled as part of Google Chrome and Google Chrome for Testing builds. cast_allow_developer_certificate Current value (from the default) = false From //third_party/openscreen/src/build/config/cast.gni:8 Whether or not self-signed certificates are enabled for the receiver and sender implementations. cast_streaming_enable_remoting Current value (from the default) = false From //components/cast_streaming/features.gni:9 Whether the cast remoting feature should be enabled in this build. cc_wrapper Current value (from the default) = "" From //build/toolchain/cc_wrapper.gni:37 Set to "ccache", "icecc" or "distcc". Probably doesn't work on windows. chrome_certificate_policies_supported Current value (from the default) = true From //chrome/common/features.gni:46 Platforms where Chrome x509 server certificate enterprise policies are supported. This must must match the supported_on/future_on list of the policy in the following policies stored in components/policy/resources/templates/policy_definitions/: * CertificateManagement/CACertificates.yaml * CertificateManagement/CADistrustedCertificates.yaml * CertificateManagement/CAHintCertificates.yaml * CertificateManagement/CAPlatformIntegrationEnabled.yaml chrome_enable_logging_by_default Current value (from the default) = true From //chrome/common/features.gni:34 Enables the build to have logging enabled by default. This is intended for use only in developer builds. chrome_pgo_phase Current value (from the default) = 0 From //build/config/compiler/pgo/pgo.gni:22 Specify the current PGO phase. Here's the different values that can be used: 0 : Means that PGO is turned off. 1 : Used during the PGI (instrumentation) phase. 2 : Used during the PGO (optimization) phase. PGO profiles are generated from `dcheck_always_on = false` builds. Mixing those profiles with `dcheck_always_on = true` builds can cause the compiler to think some code is hotter than it actually is, potentially causing very bad compile times. chrome_root_store_only Current value (from the default) = true From //net/features.gni:53 Platforms for which certificate verification can only be performed using the builtin cert verifier with the Chrome Root Store. chrome_root_store_optional Current value (from the default) = false From //net/features.gni:49 Platforms for which certificate verification can be performed using the builtin cert verifier with the Chrome Root Store, and this can be configured using the ChromeRootStoreUsed feature flag. When the feature flag is false, verification may be done with the platform verifier or the builtin verifier using platform roots, depending on the platform. See https://crbug.com/1216547 for status. chrome_root_store_supported Current value (from the default) = true From //net/features.gni:68 chrome_wide_echo_cancellation_supported Current value (from the default) = true From //media/media_options.gni:345 Currently it is available on Win, Mac and Linux, since it requires the audio service to run in a separate process. chromedriver_disclaim_responsibility Current value (from the default) = true From //chrome/test/chromedriver/BUILD.gn:20 Make macOS request permissions for the chrome binary instead of its parent process (usually the Terminmal.app). This is required for running chrome tests on Google's CI machines, but for some vendor builds like Microsoft Teams they need to turn this off. chromeos_afdo_platform Current value (from the default) = "atom" From //build/config/compiler/BUILD.gn:112 This configuration is used to select a default profile in Chrome OS based on the microarchitectures we are using. This is only used if clang_use_default_sample_profile is true and clang_sample_profile_path is empty. chromeos_is_browser_only Current value (from the default) = false From //build/config/chromeos/ui_mode.gni:19 Deprecated, use is_chromeos_lacros. This controls UI configuration for Chrome. If this flag is set, we assume Chrome runs on Chrome OS devices, using Wayland (instead of X11). TODO(crbug.com/1052397): Define chromeos_product instead, which takes either "browser" or "ash". Re-define the following variables as: is_chromeos_lacros = chromeos_product == "browser" is_chromeos_ash = chromeos_product == "ash" clang_base_path Current value (from the default) = "//third_party/llvm-build/Release+Asserts" From //build/config/clang/clang.gni:29 clang_diagnostic_dir Current value (from the default) = "../../tools/clang/crashreports" From //build/config/compiler/compiler.gni:128 clang_embed_bitcode Current value (from the default) = false From //build/config/clang/clang.gni:33 Specifies whether or not bitcode should be embedded during compilation. This is used for creating a MLGO corpus from Chromium in the non-ThinLTO case. clang_emit_debug_info_for_profiling Current value (from the default) = false From //build/config/compiler/BUILD.gn:116 Emit debug information for profiling wile building with clang. Only enable this for ChromeOS official builds for AFDO. clang_sample_profile_path Current value (from the default) = "" From //build/config/compiler/BUILD.gn:96 Path to an AFDO profile to use while building with clang, if any. Empty implies none. clang_use_chrome_plugins Current value (from the default) = true From //build/config/clang/clang.gni:15 clang_use_default_sample_profile Current value (from the default) = false From //build/config/compiler/BUILD.gn:105 clang_version Current value (from the default) = "18" From //build/toolchain/toolchain.gni:53 TODO(crbug.com/1517549): Remove in the next Clang roll. com_init_check_hook_disabled Current value (from the default) = false From //base/BUILD.gn:63 Set to true to disable COM init check hooks. compiler_timing Current value (from the default) = false From //build/config/compiler/BUILD.gn:119 Turn this on to have the compiler output extra timing information. compute_build_timestamp Current value (from the default) = "compute_build_timestamp.py" From //build/timestamp.gni:17 This should be the filename of a script that prints a single line containing an integer that's a unix timestamp in UTC. This timestamp is used as build time and will be compiled into other code. This argument may look unused. Before removing please check with the chromecast team to see if they still use it internally. compute_inputs_for_analyze Current value (from the default) = false From //build/config/compute_inputs_for_analyze.gni:13 Enable this flag when running "gn analyze". This causes some gn actions to compute inputs immediately (via exec_script) where they would normally compute them only when executed (and write them to a depfile). This flag will slow down GN, but is required for analyze to work properly. concurrent_links Current value (from the default) = -1 From //build/toolchain/concurrent_links.gni:23 Limit the number of concurrent links; we often want to run fewer links at once than we do compiles, because linking is memory-intensive. The default to use varies by platform and by the amount of memory available, so we call out to a script to get the right value. content_enable_legacy_ipc Current value (from the default) = false From //content/common/features.gni:24 We allow legacy IPC to be enabled for Android (GIN Java bridge), and Pepper usage. content_shell_major_version Current value (from the default) = "999" From //content/shell/BUILD.gn:45 content_shell_product_name Current value (from the default) = "Content Shell" From //content/shell/BUILD.gn:43 content_shell_version Current value (from the default) = "999.77.34.5" From //content/shell/BUILD.gn:44 coverage_instrumentation_input_file Current value (from the default) = "" From //build/config/coverage/coverage.gni:36 The path to the coverage instrumentation input file should be a source root absolute path (e.g. //out/Release/coverage_instrumentation_input.txt), and the file consists of multiple lines where each line represents a path to a source file, and the paths must be relative to the root build directory. e.g. ../../base/task/post_task.cc for build directory 'out/Release'. NOTE that this arg will be non-op if use_clang_coverage is false. cppgc_allow_allocations_in_prefinalizers Current value (from the default) = false From //v8/BUILD.gn:330 Enable allocations during prefinalizer invocations. cppgc_enable_2gb_cage Current value (from the default) = false From //v8/gni/v8.gni:132 Enable 2gb cage for fast compression/decompression. Currently disabled due to an increased number of OOMs. cppgc_enable_caged_heap Current value (from the default) = true From //v8/BUILD.gn:323 cppgc_enable_larger_cage Current value (from the default) = false From //v8/gni/v8.gni:135 Enable support for larger cages, up to 16GB. cppgc_enable_object_names Current value (from the default) = false From //v8/gni/v8.gni:116 Enable object names in cppgc for profiling purposes. cppgc_enable_pointer_compression Current value (from the default) = false From //v8/gni/v8.gni:128 Enable pointer compression in cppgc. cppgc_enable_slim_write_barrier Current value (from the default) = true From //v8/gni/v8.gni:125 Enables a slim write barrier that only performs a single check in the fast path and delegates all further checks to a slow path call. This is fast in a setting with few slow-path checks, i.e., with disabled young generation GC. cppgc_enable_verify_heap Current value (from the default) = "" From //v8/BUILD.gn:327 Enables additional heap verification phases and checks. cppgc_enable_young_generation Current value (from the default) = false From //v8/gni/v8.gni:119 Enable young generation in cppgc. cppgc_is_standalone Current value (from the default) = false From //v8/gni/v8.gni:113 crashpad_dependencies Current value = "chromium" From //.gn:55 Overridden from the default = "standalone" From //third_party/crashpad/crashpad/build/crashpad_buildconfig.gni:19 Determines various flavors of build configuration, and which concrete targets to use for dependencies. Valid values are "standalone", "chromium", "fuchsia", "dart" or "external". crashpad_http_transport_impl Current value (from the default) = "" From //third_party/crashpad/crashpad/util/net/tls.gni:23 crashpad_use_boringssl_for_http_transport_socket Current value (from the default) = false From //third_party/crashpad/crashpad/util/net/tls.gni:30 cros_board Current value (from the default) = "" From //build/config/chromeos/args.gni:8 This is used only by Simple Chrome to bind its value to test-runner scripts generated at build-time. cros_sdk_version Current value (from the default) = "" From //build/config/chromeos/args.gni:12 Similar to cros_board above, this used only by test-runner scripts in Simple Chrome. current_cpu Current value (from the default) = "" (Internally set; try `gn help current_cpu`.) current_os Current value (from the default) = "" (Internally set; try `gn help current_os`.) custom_toolchain Current value (from the default) = "" From //build/config/BUILDCONFIG.gn:147 Allows the path to a custom target toolchain to be injected as a single argument, and set as the default toolchain. custom_vulkan_loader_library_name Current value (from the default) = "" From //third_party/vulkan-deps/vulkan-loader/src/BUILD.gn:20 dawn_always_assert Current value (from the default) = false From //third_party/dawn/scripts/dawn_features.gni:66 Enable Dawn's ASSERTs even in release builds dawn_complete_static_libs Current value (from the default) = false From //third_party/dawn/scripts/dawn_features.gni:71 Should the Dawn static libraries be fully linked vs. GN's default of treating them as source sets. This is useful for people using Dawn standalone to produce static libraries to use in their projects. dawn_dxc_disable_asserts_debug Current value (from the default) = false From //third_party/dawn/third_party/gn/dxc/BUILD.gn:50 DXC sometimes asserts on valid HLSL. Set this to true to disable assertions in debug builds. dawn_enable_d3d11 Current value (from the default) = true From //third_party/dawn/scripts/dawn_features.gni:74 Enables the compilation of Dawn's D3D11 backend dawn_enable_d3d12 Current value (from the default) = true From //third_party/dawn/scripts/dawn_features.gni:77 Enables the compilation of Dawn's D3D12 backend dawn_enable_desktop_gl Current value (from the default) = false From //third_party/dawn/scripts/dawn_features.gni:88 Enables the compilation of Dawn's OpenGL backend (best effort, non-conformant) dawn_enable_error_injection Current value (from the default) = true From //third_party/dawn/scripts/dawn_features.gni:103 dawn_enable_metal Current value (from the default) = false From //third_party/dawn/scripts/dawn_features.gni:80 Enables the compilation of Dawn's Metal backend dawn_enable_null Current value (from the default) = true From //third_party/dawn/scripts/dawn_features.gni:84 Enables the compilation of Dawn's Null backend (required for unittests, obviously non-conformant) dawn_enable_opengles Current value (from the default) = true From //third_party/dawn/scripts/dawn_features.gni:94 dawn_enable_spirv_validation Current value (from the default) = true From //third_party/dawn/scripts/dawn_features.gni:121 Disable SPIR-V validation on Android because it adds a significant amount to the binary size, and Tint's output should be well-formed. dawn_enable_vulkan Current value (from the default) = true From //third_party/dawn/scripts/dawn_features.gni:98 Enables the compilation of Dawn's Vulkan backend Disables vulkan when compiling for UWP, since UWP only supports d3d dawn_enable_vulkan_loader Current value (from the default) = false From //third_party/dawn/scripts/dawn_features.gni:117 dawn_enable_vulkan_validation_layers Current value (from the default) = true From //third_party/dawn/scripts/dawn_features.gni:112 dawn_tests_use_angle Current value (from the default) = true From //third_party/dawn/scripts/dawn_features.gni:50 dawn_use_built_dxc Current value (from the default) = true From //third_party/dawn/scripts/dawn_features.gni:61 Whether we allow building DXC. DXC requires SM6.0+ which is blocklisted on x86, and arm64 support is not implemented yet. See crbug.com/tint/1753. dawn_use_swiftshader Current value (from the default) = true From //third_party/dawn/scripts/dawn_features.gni:55 Enables SwiftShader as the fallback adapter. Requires dawn_swiftshader_dir to be set to take effect. TODO(dawn:1536): Enable SwiftShader for Android. dcheck_always_on Current value (from the default) = true From //build/config/dcheck_always_on.gni:25 dcheck_is_configurable Current value (from the default) = false From //build/config/dcheck_always_on.gni:14 Enables DCHECKs to be built-in, but to default to being non-fatal/log-only. DCHECKS can then be set as fatal/non-fatal via the "DcheckIsFatal" feature. See https://bit.ly/dcheck-albatross for details on how this is used. devtools_components_visibility Current value (from the default) = ["*"] From //third_party/devtools-frontend/src/front_end/ui/components/visibility.gni:8 devtools_css_hot_reload_enabled Current value (from the default) = false From //third_party/devtools-frontend/src/scripts/build/ninja/generate_css.gni:11 Whether to enable CSS hot reloading with `watch` script or not. devtools_dcheck_always_on Current value (from the default) = true From //third_party/devtools-frontend/src/scripts/build/ninja/vars.gni:8 devtools_entrypoints_visibility Current value (from the default) = ["*"] From //third_party/devtools-frontend/src/front_end/entrypoints/visibility.gni:8 devtools_fast_bundle Current value (from the default) = true From //third_party/devtools-frontend/src/scripts/build/ninja/bundle.gni:12 If this is enabled, devtools build uses esbuild instead of rollup.js to bundle JavaScript files. devtools_grd_location Current value (from the default) = "third_party/devtools-frontend/src/front_end/devtools_resources.grd" From //build/config/devtools.gni:29 devtools_lit_visibility Current value (from the default) = ["*"] From //third_party/devtools-frontend/src/front_end/ui/lit-html/visibility.gni:8 devtools_location Current value (from the default) = "third_party/devtools-frontend/src/" From //build/config/devtools.gni:27 devtools_models_visibility Current value (from the default) = ["*"] From //third_party/devtools-frontend/src/front_end/models/visibility.gni:8 devtools_panels_visibility Current value (from the default) = ["*"] From //third_party/devtools-frontend/src/front_end/panels/visibility.gni:8 devtools_release_sourcemaps Current value (from the default) = false From //third_party/devtools-frontend/src/scripts/build/ninja/bundle.gni:20 If this is enabled, we will emit source maps for the entrypoint bundles. Since we only bundle release builds, this flag can't be used with is_debug = true. Note that this flag works regardless of the devtools_skip_typecheck or devtools_fast_bundle GN arg. Both rollup.js or ESBuild will emit source maps if this flag is set. devtools_root_location Current value (from the default) = "third_party/devtools-frontend/src" From //build/config/devtools.gni:26 devtools_skip_typecheck Current value (from the default) = true From //third_party/devtools-frontend/src/third_party/typescript/typescript.gni:16 devtools_third_party_visibility Current value (from the default) = ["*"] From //third_party/devtools-frontend/src/front_end/third_party/visibility.gni:8 devtools_ui_legacy_visibility Current value (from the default) = ["*"] From //third_party/devtools-frontend/src/front_end/ui/legacy/visibility.gni:8 devtools_use_remoteexec Current value (from the default) = false From //third_party/devtools-frontend/src/third_party/typescript/typescript.gni:14 Set to true to enable remote compilation of TypeScript using reclient. This flag is temporarily until DevTools reclient support has stabilized. At that point, this flag will be folded together with "use_remoteexec". TODO(crbug.com/1139220): Remove the flag once we are confident. devtools_visibility Current value = ["*"] From //.gn:71 Overridden from the default = [] From //third_party/devtools-frontend/src/front_end/visibility.gni:6 disable_brotli_filter Current value (from the default) = false From //net/features.gni:24 Do not disable brotli filter by default. disable_fieldtrial_testing_config Current value (from the default) = false From //components/variations/service/BUILD.gn:15 Set to true make a build that disables activation of field trial tests specified in testing/variations/fieldtrial_testing_config.json. Note: For Chrome-branded Android builds, this is always considered as set to true (see below). This is done to avoid the binary size impact (~40 KiB) on Android. disable_file_support Current value (from the default) = false From //net/features.gni:11 Disables support for file URLs. File URL support requires use of icu. Cronet does not support file URLs. disable_histogram_support Current value (from the default) = true From //components/cronet/BUILD.gn:16 If set to true, this will remove histogram manager to reduce binary size. disable_libfuzzer Current value (from the default) = false From //build/config/sanitizers/sanitizers.gni:87 Helper variable for testing builds with disabled libfuzzer. Not for client use. disable_zstd_filter Current value (from the default) = false From //net/features.gni:27 Do not disable zstd filter by default, except for Cronet builds. enable_accessibility_service Current value (from the default) = false From //services/accessibility/buildflags.gni:11 Used to enable the Accessibility Service. Override this in gn args on supported platforms (see below). enable_accessibility_service_internal Current value (from the default) = false From //services/accessibility/buildflags.gni:20 enable_all_rust_features Current value (from the default) = false From //build/config/rust.gni:50 As we incrementally enable Rust on mainstream builders, we want to enable the toolchain (by switching 'enable_rust' to true) while still disabling almost all Rust features). Yet we still want to have some builders with all Rust features enabled. enable_arcore Current value (from the default) = false From //device/vr/buildflags/buildflags.gni:21 enable_assistant_integration_tests Current value (from the default) = false From //chromeos/ash/components/assistant/assistant.gni:18 Enable Assistant integration tests using LibAssistant and a fake S3 server. This requires libassistant.so to support grpc communication with the S3 server, which increases the library size, which is why we introduced this flag to disable them in the release builds. enable_av1_decoder Current value (from the default) = true From //media/media_options.gni:133 If overriding this to false, possibly via its component values, `enable_libaom` should likely also be overriddent to false. enable_background_contents Current value (from the default) = true From //chrome/common/features.gni:49 Enables support for background apps. enable_background_mode Current value (from the default) = true From //chrome/common/features.gni:50 enable_backup_ref_ptr_feature_flag Current value (from the default) = false From //base/allocator/partition_allocator/partition_alloc.gni:194 Enable the feature flag required to activate backup ref pointers. That is to say `PartitionAllocBackupRefPtr`. This is meant to be used primarily on bots. It is much easier to override the feature flags using a binary flag instead of updating multiple bots's scripts to pass command line arguments. enable_backup_ref_ptr_instance_tracer Current value (from the default) = false From //base/allocator/partition_allocator/partition_alloc.gni:222 enable_backup_ref_ptr_slow_checks Current value (from the default) = false From //base/allocator/partition_allocator/partition_alloc.gni:186 enable_backup_ref_ptr_support Current value (from the default) = false From //base/allocator/partition_allocator/partition_alloc.gni:144 enable_base_tracing Current value (from the default) = true From //build_overrides/build.gni:36 Tracing support requires //third_party/perfetto, which is not available in libchrome (CrOS's version of //base). This flag can disable tracing support altogether, in which case all tracing instrumentation in //base becomes a no-op. TODO(crbug/1065905): Add dependency on perfetto to support typed events. enable_basic_print_dialog Current value (from the default) = true From //printing/buildflags/buildflags.gni:34 Enables the printing system dialog for platforms that support printing and have a system dialog. enable_basic_printing Current value (from the default) = true From //printing/buildflags/buildflags.gni:25 TODO(awscreen) Safety net to avoid revert for a flag rename which affects many locations. Remove this once `enable_printing` has landed. enable_blink_bindings_tracing Current value (from the default) = false From //third_party/blink/renderer/platform/BUILD.gn:229 Enable TRACE_EVENT instrumentation for Blink bindings. Disabled by default as it increases binary size. enable_bound_session_credentials Current value (from the default) = true From //components/signin/features.gni:10 Compile time flag for Bound Session Credentials. enable_browser_speech_service Current value (from the default) = true From //chrome/services/speech/buildflags/buildflags.gni:24 Whether the speech service is implemented in the browser as a hosted service possibly running in a utility process. On other platforms, that service is either * implemented some other way (e.g. ChromeOS, where ML Service provides the implementation); or * not implemented, and corresponding features don't exist as part of Chrome (e.g. Android, where Live Caption is instead a system feature). enable_call_graph_profile_sort Current value (from the default) = false From //build/config/compiler/BUILD.gn:246 enable_callgrind Current value (from the default) = false From //third_party/pdfium/pdfium.gni:66 Enable callgrind for performance profiling enable_captive_portal_detection Current value (from the default) = true From //components/captive_portal/core/features.gni:9 enable_cardboard Current value (from the default) = false From //device/vr/buildflags/buildflags.gni:19 enable_cast_audio_renderer Current value (from the default) = false From //build/config/cast.gni:24 True to enable the cast audio renderer. TODO(crbug.com/1293520): Remove this buildflag. enable_cast_receiver Current value (from the default) = false From //build/config/cast.gni:42 Set this true for a Chromecast build. Chromecast builds are supported on Linux, Android, ChromeOS, and Fuchsia. enable_cast_renderer Current value (from the default) = false From //build/config/cast.gni:51 enable_cdm_host_verification Current value (from the default) = false From //media/media_options.gni:240 enable_cdm_storage_id Current value (from the default) = false From //media/media_options.gni:245 Enable Storage ID which is used by CDMs. This is only available with chrome branding, but may be overridden by other embedders. enable_cet_shadow_stack Current value (from the default) = true From //build/config/compiler/compiler.gni:135 Mark binaries as compatible with Shadow Stack of Control-flow Enforcement Technology (CET). If Windows version and hardware supports the feature and it's enabled by OS then additional validation of return address will be performed as mitigation against Return-oriented programming (ROP). https://chromium.googlesource.com/chromium/src/+/main/docs/design/sandbox.md#cet-shadow-stack enable_check_raw_ptr_fields Current value (from the default) = true From //build/config/clang/clang.gni:19 enable_check_raw_ref_fields Current value (from the default) = true From //build/config/clang/clang.gni:26 enable_chrome_notifications Current value (from the default) = true From //chrome/common/features.gni:53 Enables usage of notifications via Chrome's MessageCenter. enable_chromium_prelude Current value (from the default) = true From //build/config/rust.gni:44 The chromium prelude crate provides the `chromium::import!` macro which is needed to depend on first-party rust libraries. Third-party libraries are specified with cargo_crate and do not get imported through this macro. The macro requires //third_party/rust for syn, quote, and proc_macro2. Downstream projects that want to use //build for the rust GN templates but don't want to enable the chromium prelude can disable it here, and should specify a globally unique `crate_name` in their rust library GN rules instead. Note that using a `crate_name` is strongly discouraged inside Chromium, and is also discouraged for downstream projects when possible. enable_click_to_call Current value (from the default) = true From //chrome/common/features.gni:56 Disable Click to Call on Fuchsia. enable_component_updater Current value (from the default) = true From //chrome/common/features.gni:60 Whether to enable the component updater. Code is in //components/component_updater. enable_compose Current value (from the default) = true From //components/compose/features.gni:7 Whether Compose is enabled in the build. enable_concurrent_basic_print_dialogs Current value (from the default) = false From //printing/buildflags/buildflags.gni:55 enable_cros_libassistant Current value (from the default) = false From //chromeos/ash/components/assistant/assistant.gni:6 Enable assistant implementation based on libassistant. enable_cros_media_app Current value (from the default) = false From //ash/webui/media_app_ui/media_app_ui.gni:7 Whether to enable the "real" ChromeOS Media App. When false, a mock app is bundled for testing integration points. enable_cxx Current value (from the default) = true From //build/config/rust.gni:32 The CXX tool is in //third_party/rust which is not shared with downstream projects yet. So they need to copy the required dependencies and GN files into their project to enable CXX there. enable_dangling_raw_ptr_checks Current value (from the default) = false From //base/allocator/partition_allocator/partition_alloc.gni:199 enable_dangling_raw_ptr_feature_flag Current value (from the default) = false From //base/allocator/partition_allocator/partition_alloc.gni:207 Enable the feature flag required to check for dangling pointers. That is to say `PartitionAllocDanglingPtr`. This is meant to be used primarily on bots. It is much easier to override the feature flags using a binary flag instead of updating multiple bots's scripts to pass command line arguments. enable_dangling_raw_ptr_perf_experiment Current value (from the default) = false From //base/allocator/partition_allocator/partition_alloc.gni:217 Enables the dangling raw_ptr checks feature for the performance experiment. Not every dangling pointers have been fixed or annotated yet. To avoid accounting for the cost of calling the PA's embedder's callbacks when a dangling pointer has been detected, this simulates the raw_ptr to be allowed to dangle. This flag is temporary, and isn't used by PA embedders, so it doesn't need to go through build_overrides enable_dav1d_decoder Current value (from the default) = true From //media/media_options.gni:108 enable_discovery Current value (from the default) = false From //chrome/browser/sharing/buildflags.gni:6 enable_downgrade_processing Current value (from the default) = true From //chrome/browser/downgrade/buildflags.gni:9 enable_downstream_media_tests Current value (from the default) = false From //chrome/test/media_router/BUILD.gn:10 Many of the targets defined in this file have dependencies that cannot be satisfied without additional downstream resources. Explicitly guard them them behind this flag so that we do not attempt to build or isolate targets in public chromium checkouts. enable_dsyms Current value (from the default) = false From //build/config/apple/symbols.gni:17 Produce dSYM files for targets that are configured to do so. dSYM generation is controlled globally as it is a linker output (produced via the //build/toolchain/apple/linker_driver.py. Enabling this will result in all shared library, loadable module, and executable targets having a dSYM generated. enable_expensive_dchecks Current value (from the default) = true From //build/config/dcheck_always_on.gni:33 enable_extensions Current value (from the default) = true From //extensions/buildflags/buildflags.gni:8 enable_extractors Current value (from the default) = true From //chrome/services/file_util/public/features.gni:11 Whether the file_util service supports .TAR.XZ and .TAR file extraction. Currently only used by imageWriterPrivate extension API, so only enabled when Extensions are enabled. enable_fake_assistant_microphone Current value (from the default) = false From //chromeos/ash/components/assistant/assistant.gni:10 Enable a fake microphone, which can replay audio files as microphone input. See chromeos/ash/components/assistant/tools/send-audio.sh enable_feed_v2 Current value (from the default) = true From //components/feed/features.gni:7 Whether Feed is enabled in the build. enable_ffmpeg_video_decoders Current value (from the default) = true From //media/media_options.gni:224 On Android, FFMpeg is built without video decoders by default. This flag gives the option to override that decision in case there are no hardware decoders. To do so, you will also need to update ffmpeg build files in order to define which decoders to build in. enable_full_stack_frames_for_profiling Current value (from the default) = false From //build/config/compiler/BUILD.gn:69 Compile in such a way as to make it possible for the profiler to unwind full stack frames. Setting this flag has a large effect on the performance of the generated code than just setting profiling, but gives the profiler more information to analyze. Requires profiling to be set to true. enable_fuzztest_fuzz Current value (from the default) = false From //build/config/sanitizers/sanitizers.gni:140 enable_gpu_client_logging Current value (from the default) = false From //gpu/command_buffer/client/BUILD.gn:14 Enable GPU client logging without DCHECK being on. enable_gpu_service_logging Current value (from the default) = false From //ui/gl/BUILD.gn:21 Whether service side logging (actual calls into the GL driver) is enabled or not. enable_gwp_asan Current value (from the default) = true From //components/gwp_asan/buildflags/buildflags.gni:27 Convenience definition enable_gwp_asan_malloc Current value (from the default) = false From //components/gwp_asan/buildflags/buildflags.gni:21 Is GWP-ASan malloc/PartitionAlloc hooking enabled for chrome/ on a given platform. enable_gwp_asan_partitionalloc Current value (from the default) = true From //components/gwp_asan/buildflags/buildflags.gni:22 enable_hangout_services_extension Current value (from the default) = false From //chrome/common/features.gni:64 Hangout services is an extension that adds extra features to Hangouts. It is enableable separately to facilitate testing. enable_hevc_parser_and_hw_decoder Current value (from the default) = false From //media/media_options.gni:121 enable_hidpi Current value (from the default) = true From //ui/base/ui_features.gni:32 enable_hls_demuxer Current value (from the default) = false From //media/media_options.gni:115 Enable HLS manifest parser and demuxer. enable_ink Current value (from the default) = false From //pdf/features.gni:18 Enable ink libraries provided by the ChromeOS media app dependency. This argument indicates whether the ink libraries provided by the ChromeOS media app dependency is enabled. It also determines whether the annotation feature is enabled for the PDF viewer. enable_ipc_fuzzer Current value (from the default) = false From //tools/ipc_fuzzer/ipc_fuzzer.gni:14 Build IPC fuzzer by default if it's a supported configuration. For sanitizer builds, this needs to be enabled explicitly as they can be slow (especially MSan). enable_ipc_logging Current value (from the default) = true From //ipc/features.gni:7 Enabling debug builds automatically sets enable_ipc_logging to true. enable_iterator_debugging Current value (from the default) = false From //build/config/c++/c++.gni:40 When set, enables libc++ debug mode with iterator debugging. Iterator debugging is generally useful for catching bugs. But it can introduce extra locking to check the state of an iterator against the state of the current object. For iterator- and thread-heavy code, this can significantly slow execution - two orders of magnitude slowdown has been seen (crbug.com/903553) and iterator debugging also slows builds by making generation of snapshot_blob.bin take ~40-60 s longer. Therefore this defaults to off. enable_js_protobuf Current value (from the default) = true From //third_party/protobuf/proto_library.gni:146 Allows subprojects to omit javascript dependencies (e.g.) closure_compiler and google-closure-library. enable_kythe_annotations Current value (from the default) = false From //build/toolchain/kythe.gni:10 Enables Kythe annotations necessary to build cross references. enable_lens_desktop Current value (from the default) = true From //components/lens/features.gni:15 Includes Lens features in the build. toolkit_views is used to ensure Lens features are only included on Desktop devices running Chromium enable_lens_desktop_google_branded_features Current value (from the default) = false From //components/lens/features.gni:25 enable_libaom Current value (from the default) = true From //third_party/libaom/options.gni:7 Enable encoding and decoding AV1 video files. enable_libaom_decoder Current value (from the default) = false From //third_party/libaom/options.gni:10 To be deprecated soon. enable_library_cdms Current value (from the default) = true From //media/media_options.gni:232 Enables the use of library CDMs that implements the interface defined at media/cdm/api/content_decryption_module.h. If true, the actually library CDM will be hosted in the mojo CDM service running in the CDM (utility) process. Used for all desktop platforms. enable_linux_installer Current value (from the default) = false From //chrome/installer/installers.gni:12 enable_log_error_not_reached Current value (from the default) = false From //build/config/logging.gni:11 enable_logging_override Current value (from the default) = false From //media/media_options.gni:106 Enable logging override, e.g. enable DVLOGs through level 2 at build time. On Cast devices, these are logged as INFO. When enabled on Fuchsia, these are logged as VLOGs. enable_maldoca Current value (from the default) = true From //chrome/services/file_util/public/features.gni:14 Enables analysis of Office documents for malicious macros enable_mdns Current value (from the default) = true From //net/features.gni:30 Multicast DNS. enable_media_drm_storage Current value (from the default) = false From //media/media_options.gni:112 Enable browser managed persistent metadata storage for EME persistent session and persistent usage record session. enable_media_foundation_widevine_cdm Current value (from the default) = false From //third_party/widevine/cdm/widevine.gni:50 enable_media_remoting Current value (from the default) = true From //media/media_options.gni:333 This switch defines whether the Media Remoting implementation will be built. When enabled, media is allowed to be renderer and played back on remote devices when the tab is being casted and other conditions are met. enable_media_remoting_rpc Current value (from the default) = true From //media/media_options.gni:339 Media Remoting RPC is disabled on Android since it's unused but increases the native binary size by ~70Kb. enable_message_center Current value (from the default) = true From //ui/base/ui_features.gni:30 enable_ml_internal Current value (from the default) = false From //services/on_device_model/on_device_model.gni:10 enable_modular_updater Current value (from the default) = false From //build/config/cast.gni:19 Set true to enable modular_updater. enable_mojo_tracing Current value (from the default) = false From //mojo/public/cpp/bindings/BUILD.gn:13 enable_mojom_fuzzer Current value (from the default) = false From //mojo/public/tools/bindings/mojom.gni:47 Enables generating javascript fuzzing-related code and the bindings for the MojoLPM fuzzer targets. Off by default. enable_mojom_message_id_scrambling Current value (from the default) = false From //mojo/public/tools/bindings/mojom.gni:43 Controls message ID scrambling behavior. If |true|, message IDs are scrambled (i.e. randomized based on the contents of //chrome/VERSION) on non-Chrome OS desktop platforms. Enabled on official builds by default. Set to |true| to enable message ID scrambling on a specific build. See also `enable_scrambled_message_ids` below for more details. enable_mojom_typemapping Current value (from the default) = true From //mojo/public/tools/bindings/mojom.gni:36 Indicates whether typemapping should be supported in this build configuration. This may be disabled when building external projects which depend on //mojo but which do not need/want all of the Chromium tree dependencies that come with typemapping. Note that (perhaps obviously) a huge amount of Chromium code will not build with typemapping disabled, so it is never valid to set this to |false| in any Chromium build configuration. enable_mse_mpeg2ts_stream_parser Current value (from the default) = false From //media/media_options.gni:144 enable_mutex_priority_inheritance Current value (from the default) = false From //base/BUILD.gn:68 Set to true to enable mutex priority inheritance. See the comments in LockImpl::PriorityInheritanceAvailable() in lock_impl_posix.cc for the platform requirements to safely enable priority inheritance. enable_nacl Current value (from the default) = false From //components/nacl/features.gni:27 Enables Native Client support. NaCl is only supported on ChromeOS. enable_nocompile_tests Current value (from the default) = true From //build/nocompile.gni:58 enable_offline_pages Current value (from the default) = false From //components/offline_pages/buildflags/features.gni:8 Whether to enable OfflinePages support. Currently user-visible features are Android-only. enable_offline_pages_harness Current value (from the default) = false From //components/offline_pages/buildflags/features.gni:12 This enables test API for locally-built harness which is used for quality evaluations. Requires setting this variable manually at local environment. enable_oop_basic_print_dialog Current value (from the default) = true From //printing/buildflags/buildflags.gni:62 Enables the printing system dialog being invoked from out-of-process for platforms that support printing, have a system dialog, and which can invoke that system print dialog from a process other than the browser process. TODO(crbug.com/809738) Determine if Linux Wayland can be made to have a system dialog be modal against an application window in the browser process. enable_oop_printing Current value (from the default) = true From //printing/buildflags/buildflags.gni:47 Enables out-of-process printing. Do not have this definition just be based on `enable_print_preview`; this feature could still be appropriate for some build configurations which explicitly disable print preview. enable_oop_printing_no_oop_basic_print_dialog Current value (from the default) = false From //printing/buildflags/buildflags.gni:68 enable_opengl_apitrace Current value (from the default) = false From //build/config/ozone.gni:34 Enable explicit apitrace (https://apitrace.github.io) loading. This requires apitrace library with additional bindings. See ChromeOS package for details: https://chromium-review.googlesource.com/c/chromiumos/overlays/chromiumos-overlay/+/2659419 Chrome will not start without an apitrace.so library. Trace will be saved to /tmp/gltrace.dat file by default. You can override it at run time with TRACE_FILE= environment variable. enable_openscreen_protocol Current value (from the default) = false From //chrome/browser/media/router/BUILD.gn:12 Set to true to build code that supports the Open Screen Protocol. OSP is experimental and not yet feature-complete. enable_openxr Current value (from the default) = true From //device/vr/buildflags/buildflags.gni:27 To build with OpenXR support, the OpenXR Loader needs to be pulled to third_party/openxr. enable_paint_preview Current value (from the default) = true From //build/config/buildflags_paint_preview.gni:15 Enable basic paint preview support. Does not work on iOS. Should not be included with Chromecast hardware devices. Used by //components/paint_preview and //third_party/harfbuzz-ng. TODO(crbug.com/webrtc/11223) Move back this file in //components/paint_preview/ once WebRTC doesn't roll harfbuzz-ng anymore, for consistency sake. enable_pdf Current value (from the default) = true From //pdf/features.gni:20 enable_perfetto_benchmarks Current value (from the default) = false From //third_party/perfetto/gn/perfetto.gni:195 enable_perfetto_fuzzers Current value (from the default) = false From //third_party/perfetto/gn/perfetto.gni:198 enable_perfetto_grpc Current value (from the default) = false From //third_party/perfetto/gn/perfetto.gni:322 Enables gRPC in the Perfetto codebase. gRPC significantly increases build times and the general footprint of Perfetto. As it only required for BigTrace and even then only to build the final ready-to-ship binary, don't enable this by default. enable_perfetto_heapprofd Current value (from the default) = false From //third_party/perfetto/gn/perfetto.gni:157 enable_perfetto_integration_tests Current value (from the default) = false From //third_party/perfetto/gn/perfetto.gni:193 enable_perfetto_ipc Current value (from the default) = false From //third_party/perfetto/gn/perfetto.gni:150 enable_perfetto_llvm_demangle Current value (from the default) = false From //third_party/perfetto/gn/perfetto.gni:316 enable_perfetto_platform_services Current value (from the default) = false From //third_party/perfetto/gn/perfetto.gni:141 enable_perfetto_site Current value (from the default) = false From //third_party/perfetto/gn/perfetto.gni:339 Allows to build the perfetto.dev website. WARNING: if this flag is enabled, the build performs globbing at generation time. Incremental builds that add/remove files will not be supported without rerunning gn. enable_perfetto_stderr_crash_dump Current value (from the default) = false From //third_party/perfetto/gn/perfetto.gni:235 enable_perfetto_system_consumer Current value (from the default) = false From //third_party/perfetto/gn/perfetto.gni:251 enable_perfetto_tools Current value (from the default) = false From //third_party/perfetto/gn/perfetto.gni:187 enable_perfetto_trace_processor Current value (from the default) = true From //third_party/perfetto/gn/perfetto.gni:173 enable_perfetto_trace_processor_httpd Current value (from the default) = false From //third_party/perfetto/gn/perfetto.gni:302 enable_perfetto_trace_processor_json Current value (from the default) = true From //third_party/perfetto/gn/perfetto.gni:295 enable_perfetto_trace_processor_linenoise Current value (from the default) = false From //third_party/perfetto/gn/perfetto.gni:289 enable_perfetto_trace_processor_percentile Current value (from the default) = false From //third_party/perfetto/gn/perfetto.gni:284 enable_perfetto_trace_processor_sqlite Current value (from the default) = true From //third_party/perfetto/gn/perfetto.gni:279 enable_perfetto_traceconv Current value (from the default) = false From //third_party/perfetto/gn/perfetto.gni:328 enable_perfetto_traced_perf Current value (from the default) = false From //third_party/perfetto/gn/perfetto.gni:165 enable_perfetto_traced_probes Current value (from the default) = false From //third_party/perfetto/gn/perfetto.gni:267 The traced_probes daemon is very Linux-specific, as it depends on ftrace and various /proc interfaces. There is no point making its code platform-neutral as it won't do anything useful on Windows. The only reason why we still build it on Mac OS is to be able to run the unittests there and making dev on mac less cumbersome. The traced_probes code happens to build cleanly and for now the mainteinance cost on Mac is extremely low. enable_perfetto_traced_relay Current value (from the default) = false From //third_party/perfetto/gn/perfetto.gni:271 The relay service is enabled when platform services are enabled. TODO(chinglinyu) check if we can enable on Windows. enable_perfetto_ui Current value (from the default) = false From //third_party/perfetto/gn/perfetto.gni:332 enable_perfetto_unittests Current value (from the default) = true From //third_party/perfetto/gn/perfetto.gni:189 enable_perfetto_version_gen Current value (from the default) = false From //third_party/perfetto/gn/perfetto.gni:204 enable_perfetto_watchdog Current value (from the default) = false From //third_party/perfetto/gn/perfetto.gni:182 enable_perfetto_x64_cpu_opt Current value (from the default) = false From //third_party/perfetto/gn/perfetto.gni:243 enable_perfetto_zlib Current value (from the default) = true From //third_party/perfetto/gn/perfetto.gni:310 enable_pkeys Current value (from the default) = false From //base/allocator/partition_allocator/partition_alloc.gni:344 enable_platform_ac3_eac3_audio Current value (from the default) = false From //media/media_options.gni:71 Enables AC3/EAC3 audio handling in chromium. This includes demuxing, on-device decoding and bitstream passthrough as supported by device. enable_platform_ac4_audio Current value (from the default) = false From //media/media_options.gni:75 Enables AC4 audio handling in chromium. This includes demuxing, on-device decoding and bitstream passthrough as supported by device. enable_platform_dolby_vision Current value (from the default) = false From //media/media_options.gni:94 enable_platform_dts_audio Current value (from the default) = false From //media/media_options.gni:81 Enables DTS/DTSX audio handling in chromium. This includes demuxing, on-device decoding and bitstream passthrough as supported by device. enable_platform_encrypted_dolby_vision Current value (from the default) = false From //media/media_options.gni:101 Enable platform support of encrypted Dolby Vision. The actual support depends on platform capability and is controlled by the run time feature kPlatformEncryptedDolbyVision. Clear Dolby Vision is not supported by default, unless overwritten by the run time feature kAllowClearDolbyVisionInMseWhenPlatformEncryptedDvEnabled. enable_platform_hevc Current value (from the default) = false From //media/media_options.gni:140 enable_platform_iamf_audio Current value (from the default) = false From //media/media_options.gni:85 Enables IAMF audio handling in chromium. This includes demuxing, on-device decoding and bitstream passthrough as supported by device. enable_platform_mpeg_h_audio Current value (from the default) = false From //media/media_options.gni:77 enable_platform_vvc Current value (from the default) = false From //media/media_options.gni:126 Enable inclusion of VVC/H.266 parser/demuxer, and also enable VVC/H.266 decoding with hardware acceleration provided by platform. Disabled by default for all builds. enable_plugins Current value (from the default) = true From //ppapi/buildflags/buildflags.gni:15 Enables basic plugin support. This enables support for registering and looking up plugins, but does not include support for loading plugins using a specific technology like Pepper. In particular, the PDF viewer (enable_pdf) requires plugin support, but it does not require Pepper support (enable_ppapi). enable_pointer_arithmetic_trait_check Current value (from the default) = true From //base/allocator/partition_allocator/partition_alloc.gni:124 Enables a compile-time check that all raw_ptrs to which arithmetic operations are to be applied are annotated with the AllowPtrArithmetic trait, enable_pointer_compression_support Current value (from the default) = false From //base/allocator/partition_allocator/partition_alloc.gni:115 Introduces pointer compression support in PA. These are 4-byte pointers that can point within the core pools (regular and BRP). This is effective only for memory allocated from PartitionAlloc, so it is recommended to enable PA-E above, but isn't strictly necessary. Embedders can create and use PA partitions explicitly. enable_pointer_subtraction_check Current value (from the default) = false From //base/allocator/partition_allocator/partition_alloc.gni:119 Enables a bounds check when two pointers (at least one being raw_ptr) are subtracted (if supported by the underlying implementation). enable_ppapi Current value (from the default) = false From //ppapi/buildflags/buildflags.gni:22 Enables Pepper API (PPAPI) plugin support. The only remaining PPAPI plugin supported is NaCl and if is disabled we can disable PPAPI. enable_precompiled_headers Current value (from the default) = true From //build/config/pch.gni:15 enable_print_content_analysis Current value (from the default) = true From //printing/buildflags/buildflags.gni:51 Enable snapshotting a page when printing for its content to be analyzed for sensitive content by enterprise users. enable_print_media_l10n Current value (from the default) = false From //chrome/common/printing/BUILD.gn:16 Enable print media localization only on the platforms that support CUPS IPP (ChromeOS and macOS for now). The localization expects media vendor IDs uniquely generated by CUPS IPP. enable_print_preview Current value (from the default) = true From //printing/buildflags/buildflags.gni:30 Enables printing with print preview. Print preview requires PDF per //printing/BUILD.gn. The is_android condition is currently redundant but left for clarity. enable_printing Current value (from the default) = true From //printing/buildflags/buildflags.gni:14 Enables printing support. enable_printing_tests Current value (from the default) = false From //printing/buildflags/buildflags.gni:19 TODO(crbug.com/1432082): iOS blink port only enables printing_tests to run unit tests and web tests for now because the port does not enable the printing feature yet. enable_profiling Current value (from the default) = false From //build/config/compiler/compiler.gni:69 Compile in such a way as to enable profiling of the generated code. For example, don't omit the frame pointer and leave in symbols. enable_pseudolocales Current value (from the default) = true From //build/config/locales.gni:243 We want to give pseudolocales to everyone except end-users (devs & QA). Note that this only packages the locales in, and doesn't add the ui to enable them. enable_qr_print Current value (from the default) = false From //components/qr_code_generator/BUILD.gn:11 Enables building a development / debugging binary. enable_random_mojo_delays Current value (from the default) = false From //mojo/public/cpp/bindings/BUILD.gn:19 enable_random_mojo_delays starts a task runner that periodically pauses random Mojo bindings and later resumes them, in order to test whether parts of the code implicitly rely on FIFO processing of messages sent on different message pipes (which they should not). enable_reading_list Current value (from the default) = true From //components/reading_list/features/reading_list.gni:8 Controls whether reading list support is active or not. Currently only supported on iOS (on other platforms, the feature is always disabled). enable_remoting Current value (from the default) = true From //remoting/remoting_enable.gni:13 enable_reporting Current value (from the default) = true From //net/features.gni:33 Reporting not used on iOS. enable_resource_allowlist_generation Current value (from the default) = false From //build/toolchain/gcc_toolchain.gni:29 enable_rlz Current value (from the default) = false From //rlz/buildflags/buildflags.gni:13 enable_rust Current value (from the default) = true From //build/config/rust.gni:27 Rust is available in the Chromium build but 3p repos that use //build may not use Rust and thus won't want to depend on having the Rust toolchain present, so this defaults to off in those cases. Chromium-based projects that are built for for architectures Chrome does not support may need to disable this as well, though they may need to replace code with C/C++ to get a functional product. enable_rust_base_conversions Current value (from the default) = true From //build/config/rust.gni:109 Conversions between Rust types and C++ types. enable_rust_boringssl Current value (from the default) = true From //build/config/rust.gni:124 Enable Boringssl Rust bindings generation enable_rust_crash Current value (from the default) = true From //build/config/rust.gni:115 Support for chrome://crash-rust to check crash dump collection works. enable_rust_gtest_interop Current value (from the default) = true From //build/config/rust.gni:121 Rust gtest interop. enable_rust_json Current value (from the default) = false From //build/config/rust.gni:112 The base::JSONReader implementation. Requires base conversions. enable_rust_mojo Current value (from the default) = false From //build/config/rust.gni:118 Support for Rust mojo bindings. enable_screen_ai_service Current value (from the default) = true From //components/services/screen_ai/buildflags/features.gni:10 Screen AI service is only supported on desktop platforms. enable_segment_heap Current value (from the default) = false From //build/config/win/manifest.gni:46 enable_server_based_recognition Current value (from the default) = false From //chrome/services/speech/buildflags/buildflags.gni:28 Whether the server based speech recognition recognizer is available. Currently only available in official builds for ash ChromeOS. enable_service_discovery Current value (from the default) = true From //chrome/common/features.gni:66 enable_session_service Current value (from the default) = true From //chrome/common/features.gni:70 Enables use of the session service, which is enabled by default. Android stores them separately on the Java side. enable_shadow_call_stack Current value (from the default) = false From //build/config/compiler/BUILD.gn:195 Enable ShadowCallStack for compiled binaries. SCS stores a pointer to a shadow call stack in register x18. Hence, x18 must not be used by the OS or libraries. We assume that to be the case for high end Android configurations. For more details see https://clang.llvm.org/docs/ShadowCallStack.html enable_shadow_metadata Current value (from the default) = false From //base/allocator/partition_allocator/partition_alloc.gni:228 Shadow metadata is still under development and only supports Linux for now. enable_skia_graphite_gtests Current value (from the default) = false From //skia/features.gni:21 Enable gtests using SkiaRenderer on Skia Graphite. enable_soda_integration_tests Current value (from the default) = false From //components/soda/buildflags.gni:9 Used to enable the Speech On-Device API (SODA) in unit and browser tests. This affects production code on some platforms and should not be enabled in official builds. enable_speech_service Current value (from the default) = true From //chrome/services/speech/buildflags/buildflags.gni:12 Whether the browser provides a speech recognition service (//media/mojo/mojom/speech_recognition_service.mojom) to the renderer. TODO(crbug.com/1378804) Enable on Fuchsia. enable_stack_trace_line_numbers Current value (from the default) = false From //build/config/logging.gni:12 enable_stripping Current value (from the default) = false From //build/config/apple/symbols.gni:24 Strip symbols from linked targets by default. If this is enabled, the //build/config/apple:strip_all config will be applied to all linked targets. If custom stripping parameters are required, remove that config from a linked target and apply custom -Wcrl,strip flags. See //build/toolchain/apple/linker_driver.py for more information. enable_supervised_users Current value (from the default) = true From //components/supervised_user/buildflags.gni:9 Platforms which fully support supervision features: enable_swiftshader Current value (from the default) = true From //ui/gl/features.gni:37 enable_swiftshader_vulkan Current value (from the default) = true From //gpu/vulkan/features.gni:16 Enable swiftshader vulkan. Disabling it can save build time, however --use-vulkan=swiftshader and some tests which use swiftshader vulkan will not work. enable_system_notifications Current value (from the default) = true From //chrome/common/features.gni:74 enable_trace_logging Current value (from the default) = true From //third_party/openscreen/src/util/BUILD.gn:12 Enables trace logging in build. This is true by default, but may be disabled for a slight performance increase. enable_update_notifications Current value (from the default) = false From //chrome/browser/buildflags.gni:13 Detect updates and notify the user for Google Chrome across all platforms. Chromium does not use an auto-updater. enable_updater Current value (from the default) = false From //chrome/browser/buildflags.gni:9 By default, only branded builds integrate with automatic updates. enable_validating_command_decoder Current value (from the default) = false From //ui/gl/features.gni:30 enable_vr Current value (from the default) = true From //device/vr/buildflags/buildflags.gni:35 enable_vulkan Current value (from the default) = true From //gpu/vulkan/features.gni:11 Enable experimental vulkan backend. enable_wayland_server Current value (from the default) = false From //chrome/common/features.gni:77 Indicates if Wayland display server support is enabled. enable_websockets Current value (from the default) = true From //net/features.gni:15 WebSockets and socket stream code are not used when blink is not used and are optional in cronet. enable_webui_certificate_viewer Current value (from the default) = true From //chrome/common/features.gni:80 Enables the webui certificate viewer dialog. enable_webui_inline_sourcemaps Current value (from the default) = false From //ui/webui/webui_features.gni:19 Whether to inline source maps during build. Cannot be enabled when `optimize_webui=true`. enable_webui_tab_strip Current value (from the default) = true From //ui/webui/webui_features.gni:15 Enable the WebUI version of the browser's tab strip. enable_widevine Current value (from the default) = false From //third_party/widevine/cdm/widevine.gni:15 Enables Widevine key system support. Enabled by default in Google Chrome, Google Chrome for Testing and Android. For Fuchsia, see crbug.com/1354347. Can be optionally enabled in Chromium on non-Android platforms. Please see //src/third_party/widevine/LICENSE file for details. enterprise_client_certificates Current value (from the default) = true From //components/enterprise/buildflags/buildflags.gni:26 Indicates support for client certificates provisioning. enterprise_cloud_content_analysis Current value (from the default) = true From //components/enterprise/buildflags/buildflags.gni:16 enterprise_content_analysis Current value (from the default) = true From //components/enterprise/buildflags/buildflags.gni:38 enterprise_data_controls Current value (from the default) = true From //components/enterprise/buildflags/buildflags.gni:23 Indicates support for Data Control rules. enterprise_local_content_analysis Current value (from the default) = true From //components/enterprise/buildflags/buildflags.gni:20 Indicates support for content analysis against a cloud agent for Enterprise Connector policies. enterprise_watermark Current value (from the default) = true From //components/enterprise/buildflags/buildflags.gni:29 The watermark is currently implemented using the views framework exclude_unwind_tables Current value (from the default) = false From //build/config/compiler/compiler.gni:124 Exclude unwind tables by default for official builds as unwinding can be done from stack dumps produced by Crashpad at a later time "offline" in the crash server. Since this increases binary size, we don't recommend including them in shipping builds. For unofficial (e.g. development) builds and non-Chrome branded (e.g. Cronet which doesn't use Crashpad, crbug.com/479283) builds it's useful to be able to unwind at runtime. Include the unwind tables on Android even for official builds, as otherwise the crash dumps generated by Android's debuggerd are largely useless, and having this additional mechanism to understand issues is particularly helpful to WebView. extended_tracing_enabled Current value (from the default) = false From //base/trace_event/tracing.gni:11 Enable more trace events. Disabled by default due to binary size impact, but highly recommended for local development. extra_sysroot_libs Current value (from the default) = [] From //build/config/rust.gni:90 Non-rlib libs provided in the toolchain sysroot. Usually this is empty, but e.g. the Android Rust Toolchain provides a libunwind.a that rustc expects. fail_on_san_warnings Current value (from the default) = false From //build/config/sanitizers/sanitizers.gni:108 When true, sanitizer warnings will cause test case failures. fast_archive_compression Current value (from the default) = true From //chrome/installer/mini_installer/BUILD.gn:24 The Chrome archive is maximally compressed in official builds to reduce the size of the installer. By default: non-official or component builds, build modes targeting developers, use maximum-speed instead of maximum-compression settings so as to provide quicker build-test cycles. Uncompressed archives are not supported due to size constraints. fatal_linker_warnings Current value (from the default) = true From //build/config/compiler/BUILD.gn:77 Enable fatal linker warnings. Building Chromium with certain versions of binutils can cause linker warning. ffmpeg_branding Current value (from the default) = "Chromium" From //third_party/ffmpeg/ffmpeg_options.gni:32 Controls whether we build the Chromium or Google Chrome version of FFmpeg. The Google Chrome version contains additional codecs. Typical values are Chromium, Chrome, and ChromeOS. ffmpeg_use_unsafe_atomics Current value (from the default) = false From //third_party/ffmpeg/ffmpeg_options.gni:50 Set to true to force the use of ffmpeg's stdatomic fallback code. This code is unsafe and does not implement atomics properly. https://crbug.com/161723. Windows and GCC prior to 4.9 lack stdatomic.h. This is also useful for developers who use icecc, which relies upon clang's -frewrite-includes flag which is broken with #include_next directives as used in chromium's clang stdatomic.h. Some background: https://bugs.llvm.org/show_bug.cgi?id=26828 forbid_non_component_debug_builds Current value (from the default) = true From //build/config/compiler/compiler.gni:111 Whether an error should be raised on attempts to make debug builds with is_component_build=false. Very large debug symbols can have unwanted side effects so this is enforced by default for chromium. force_cast_bluetooth Current value (from the default) = false From //device/bluetooth/cast_bluetooth.gni:4 force_enable_fieldtrial_testing_config Current value (from the default) = false From //components/variations/service/BUILD.gn:19 Set to true to make a build that force enables activation of field trial tests specified in testing/variations/fieldtrial_testing_config.json. force_enable_raw_ptr_exclusion Current value (from the default) = false From //base/allocator/partition_allocator/partition_alloc.gni:148 RAW_PTR_EXCLUSION macro is disabled on official builds because it increased binary size. This flag can be used to enable it for official builds too. force_rustc_color_output Current value (from the default) = false From //build/config/rust.gni:100 Force-enable `--color=always` for rustc, even when it would be disabled for a platform. Mostly applicable to Windows, where new versions can handle ANSI escape sequences but it's not reliable in general. forward_through_malloc Current value (from the default) = false From //base/allocator/partition_allocator/partition_alloc.gni:129 Forwards all the allocation/freeing calls in shim (e.g. operator new) through malloc. Useful for using with tools that intercept malloc, e.g. heaptrack. fuzztest_supported Current value (from the default) = false From //build/config/sanitizers/sanitizers.gni:115 The fuzztest library builds only on some platforms, so for now, all targets depending on fuzztest need to be configured according to this. TODO(crbug.com/1494445): remove this when all build permutations work gcc_target_rpath Current value (from the default) = "" From //build/config/gcc/BUILD.gn:19 When non empty, overrides the target rpath value. This allows a user to make a Chromium build where binaries and shared libraries are meant to be installed into separate directories, like /usr/bin/chromium and /usr/lib/chromium for instance. It is useful when a build system that generates a whole target root filesystem (like Yocto) is used on top of gn, especially when cross-compiling. Note: this gn arg is similar to gyp target_rpath generator flag. generate_fuzzer_owners Current value (from the default) = false From //build/config/sanitizers/sanitizers.gni:215 Generates an owners file for each fuzzer test. TODO(crbug.com/1194183): Remove this arg when finding OWNERS is faster. generate_linker_map Current value (from the default) = false From //build/toolchain/toolchain.gni:27 Used for binary size analysis. glue_core_pools Current value (from the default) = false From //base/allocator/partition_allocator/partition_alloc.gni:107 Puts the regular and BRP pools right next to each other, so that we can check "belongs to one of the two pools" with a single bitmask operation. gold_path Current value (from the default) = "" From //build/config/compiler/BUILD.gn:73 When we are going to use gold we need to find it. This is initialized below, after use_gold might have been overridden. goma_dir Current value (from the default) = "" From //build/toolchain/goma.gni:14 Absolute directory containing the gomacc binary. google_api_key Current value (from the default) = "" From //google_apis/BUILD.gn:43 Set these to bake the specified API keys and OAuth client IDs/secrets into your build. If you create a build without values baked in, you can instead set environment variables to provide the keys at runtime (see src/google_apis/google_api_keys.h for details). Features that require server-side APIs may fail to work if no keys are provided. Note that if `use_official_google_api_keys` has been set to true (explicitly or implicitly), these values will be ignored and the official keys will be used instead. google_default_client_id Current value (from the default) = "" From //google_apis/BUILD.gn:46 See google_api_key. google_default_client_secret Current value (from the default) = "" From //google_apis/BUILD.gn:49 See google_api_key. gtest_enable_absl_printers Current value (from the default) = true From //build_overrides/build.gni:54 Allows googletest to pretty-print various absl types. Disabled for nacl due to lack of toolchain support. gtk_version Current value (from the default) = 3 From //build/config/linux/gtk/gtk.gni:13 The (major) version of GTK to build against. A different version may be loaded at runtime. has_native_accessibility Current value (from the default) = true From //ui/base/ui_features.gni:18 Whether the platform provides a native accessibility toolkit, in other words the platform has a C/C++ interface for accessibility that Chrome implements/subclasses in some way - win, mac, linux. has_platform_accessibility_support Current value (from the default) = false From //ui/base/ui_features.gni:26 Whether the platform provide platform-specific accessibility implementation, i.e. there an accessibility API of some kind on this platform that's implemented in Chrome's browser process, but not necessarily something that looks like subclassing an interface - so that includes Android (the Java AccessibilityNodeProvider API) and Fuchsia (uses fidl messaging, kind of like mojo). headless_enable_commands Current value (from the default) = true From //headless/headless.gni:11 Enable support for --screenshot, --print-to-pdf and --dump-dom commands Note: this option is not available if |headless_use_embedded_resources|. headless_mode_policy_supported Current value (from the default) = true From //headless/headless.gni:20 Platforms where headless mode is supported. headless_use_embedded_resources Current value (from the default) = false From //headless/headless.gni:7 Embed resource.pak file into the binary for easier distribution. headless_use_policy Current value (from the default) = true From //headless/headless.gni:17 Use Policy component to manage preferences. headless_use_prefs Current value (from the default) = true From //headless/headless.gni:14 Use Prefs component to access Local State and other preferences. host_byteorder Current value (from the default) = "undefined" From //build/config/host_byteorder.gni:9 host_cpu Current value (from the default) = "x64" (Internally set; try `gn help host_cpu`.) host_os Current value (from the default) = "linux" (Internally set; try `gn help host_os`.) host_pkg_config Current value (from the default) = "" From //build/config/linux/pkg_config.gni:36 A optional pkg-config wrapper to use for tools built on the host. host_toolchain Current value (from the default) = "" From //build/config/BUILDCONFIG.gn:151 This should not normally be set as a build argument. It's here so that every toolchain can pass through the "global" value via toolchain_args(). icu_copy_icudata_to_root_build_dir Current value (from the default) = true From //third_party/icu/config.gni:32 If set, the ":icudata" target will copy the ICU data to $root_build_dir. icu_disable_thin_archive Current value (from the default) = false From //third_party/icu/config.gni:24 If true, compile icu into a standalone static library. Currently this is only useful on Chrome OS. icu_fuchsia_extra_compile_flags Current value (from the default) = [] From //third_party/icu/config.gni:39 Fuchsia sometimes requires extra compilation flags for ICU to adapt it to its current toolchain. Since it takes a while for ICU to roll through Fuchsia, it can take a long time from an ICU commit to a fix rolling into Fuchsia. This flag allows us to define the flag ahead of time in //build/icu.gni, and remove the rollout issues. icu_fuchsia_override_data_dir Current value (from the default) = "" From //third_party/icu/config.gni:29 If set to nonempty, this is the label of the directory to be used to pull the ICU data files content. The setting has effect only when building inside the Fuchsia source tree. icu_use_data_file Current value (from the default) = true From //third_party/icu/config.gni:15 Tells icu to load an external data file rather than rely on the icudata being linked directly into the binary. icu_use_stub_data Current value (from the default) = true From //third_party/icu/config.gni:20 If true, then this creates a stub data file. This should be disabled if a custom data file will be used instead, in order to avoid conflicting symbols. ignore_missing_widevine_signing_cert Current value (from the default) = true From //third_party/widevine/cdm/widevine.gni:78 If set, and Widevine CDM host verification signing failed due to no signing cert, the failure will be ignored. Otherwise the build process will fail. Set to false by default for official build to catch missing cert error. For developers building with "is_official_build" locally without Widevine signing certs, please manually set `ignore_missing_widevine_signing_cert` to true to suppress the error. include_ash_ambient_animation_resources Current value (from the default) = false From //ash/ambient/resources/resources.gni:16 Build flag to include resources for the animated screensaver in ash builds. Currently, these resources are included by default for internal ChromeOS builds as both conditions below are prerequisites for downloading Lottie ambient mode resources from CIPD in the DEPS file. May be overridden locally to false for testing purposes if desired. include_branded_entitlements Current value (from the default) = true From //chrome/BUILD.gn:64 On macOS, `is_chrome_branded` builds that have been signed locally will not launch because certain entitlements are tied to the official Google code signing identity. If `include_branded_entitlements` is set to false, these entitlements will be skipped. include_transport_security_state_preload_list Current value (from the default) = true From //net/features.gni:41 Includes the transport security state preload list. This list includes mechanisms (e.g. HSTS, HPKP) to enforce trusted connections to a significant set of hardcoded domains. While this list has a several hundred KB of binary size footprint, this flag should not be disabled unless the embedder is willing to take the responsibility to make sure that all important connections use HTTPS. incremental_install Current value (from the default) = false From //build/config/android/config.gni:12 Build incremental targets whenever possible. See //build/android/incremental_install/README.md for more details. init_stack_vars Current value (from the default) = true From //build/config/compiler/BUILD.gn:151 Initialize all local variables with a pattern. This flag will fill uninitialized floating-point types (and 32-bit pointers) with 0xFF and the rest with 0xAA. This makes behavior of uninitialized memory bugs consistent, recognizable in the debugger, and crashes on memory accesses through uninitialized pointers. Flag discussion: https://crbug.com/977230 TODO(crbug.com/1131993): This regresses binary size by ~1MB on Android and needs to be evaluated before enabling it there as well. init_stack_vars_zero Current value (from the default) = false From //build/config/compiler/BUILD.gn:155 Zero init has favorable performance/size tradeoffs for Chrome OS but was not evaluated for other platforms. internal_gles2_conform_tests Current value (from the default) = false From //gpu/gles2_conform_support/BUILD.gn:7 Set to true to compile with the OpenGL ES 2.0 conformance tests. internal_khronos_glcts_tests Current value (from the default) = false From //gpu/khronos_glcts_support/BUILD.gn:8 ios_deployment_target Current value (from the default) = "15.0" From //build/config/ios/ios_sdk_overrides.gni:10 Version of iOS that we're targeting. ios_stack_profiler_enabled Current value (from the default) = true From //base/BUILD.gn:73 Control whether the ios stack sampling profiler is enabled. This flag is only supported on iOS 64-bit architecture, but some project build //base for 32-bit architecture. is_asan Current value (from the default) = false From //build/config/sanitizers/sanitizers.gni:14 Compile for Address Sanitizer to find memory bugs. is_cast_android Current value (from the default) = false From //build/config/cast.gni:32 Set this to true to build for Android-based Cast devices. Set this to false to use the defaults for Android. is_cast_audio_only Current value (from the default) = false From //build/config/cast.gni:12 Set this true for an audio-only Chromecast build. TODO(https://crbug.com/1516671): Remove this arg as CastOS builds are no longer supported. is_castos Current value (from the default) = false From //build/config/cast.gni:28 Set this to true to build for Nest hardware running Linux (aka "CastOS"). Set this to false to use the defaults for Linux. is_cfi Current value (from the default) = false From //build/config/sanitizers/sanitizers.gni:50 Compile with Control Flow Integrity to protect virtual calls and casts. See http://clang.llvm.org/docs/ControlFlowIntegrity.html TODO(pcc): Remove this flag if/when CFI is enabled in all official builds. is_cfm Current value (from the default) = false From //build/config/chromebox_for_meetings/buildflags.gni:7 True if compiling for Chromebox for Meeting devices. is_chrome_branded Current value (from the default) = false From //build/config/chrome_build.gni:9 Select the desired branding flavor. False means normal Chromium branding, true means official Google Chrome branding (requires extra Google-internal resources). is_chrome_for_testing Current value (from the default) = false From //build/config/chrome_build.gni:15 Whether to enable the Chrome for Testing (CfT) flavor. This arg is not compatible with `is_chrome_branded`. Design document: https://goo.gle/chrome-for-testing is_chrome_for_testing_branded Current value (from the default) = false From //build/config/chrome_build.gni:21 Whether to use internal Chrome for Testing (CfT). Requires `src-internal/` and `is_chrome_for_testing = true`. When true, use Google-internal icons, otherwise fall back to Chromium icons. is_chromeos_device Current value (from the default) = false From //build/config/chromeos/args.gni:26 Determines if we're building for a Chrome OS device (or VM) and not just linux-chromeos. NOTE: Most test targets in Chrome expect to run under linux-chromeos, so some have compile-time asserts that intentionally fail when this build flag is set. Build and run the tests for linux-chromeos instead. https://chromium.googlesource.com/chromium/src/+/main/docs/chromeos_build_instructions.md https://chromium.googlesource.com/chromiumos/docs/+/main/simple_chrome_workflow.md is_chromeos_with_hw_details Current value (from the default) = false From //build/config/chromeos/args.gni:34 Determines if we collect hardware information in chrome://system and feedback logs. A similar build flag "hw_details" is defined in Chrome OS (see https://crrev.com/c/3123455). is_clang Current value (from the default) = true From //build/config/BUILDCONFIG.gn:139 Set to true when compiling with the Clang compiler. is_component_build Current value (from the default) = true From //build/config/BUILDCONFIG.gn:173 Component build. Setting to true compiles targets declared as "components" as shared libraries loaded dynamically. This speeds up development time. When false, components will be linked statically. For more information see https://chromium.googlesource.com/chromium/src/+/main/docs/component_build.md is_component_ffmpeg Current value (from the default) = true From //third_party/ffmpeg/ffmpeg_options.gni:39 Set true to build ffmpeg as a shared library. NOTE: this means we should always consult is_component_ffmpeg instead of is_component_build for ffmpeg targets. This helps linux chromium packagers that swap out our ffmpeg.so with their own. See discussion here https://groups.google.com/a/chromium.org/forum/#!msg/chromium-packagers/R5rcZXWxBEQ/B6k0zzmJbvcJ is_cronet_build Current value (from the default) = false From //build/config/cronet/config.gni:9 Control whether cronet is built (this is usually set by the script components/cronet/tools/cr_cronet.py as cronet requires specific gn args to build correctly). is_cronet_for_aosp_build Current value (from the default) = false From //build/config/cronet/config.gni:14 Controls whether cronet is currently being built for AOSP or Chromium. This will always be false when building Cronet for Chromium. the flag exists to accommodate for the divergence between the repos. is_ct_supported Current value (from the default) = true From //services/network/public/cpp/features.gni:9 Certificate transparency is not supported on iOS. is_dawn_lpm_fuzzer Current value (from the default) = false From //third_party/dawn/src/dawn/fuzzers/dawn_fuzzers.gni:36 is_debug Current value (from the default) = true From //build/config/BUILDCONFIG.gn:163 Debug build. Enabling official builds automatically sets is_debug to false. is_ggp Current value (from the default) = false From //third_party/angle/gni/angle.gni:8 is_high_end_android Current value (from the default) = false From //build/config/chrome_build.gni:27 Set to true to enable settings for high end Android devices, typically enhancing speed at the expense of resources such as binary sizes and memory. Non-official builds should ignore this argument so that arm64 builders remain fast and independent from PGO without having to set the value to false. is_high_end_android_secondary_toolchain Current value (from the default) = false From //build/config/chrome_build.gni:44 Whether to apply size->speed trade-offs to the secondary toolchain. Relevant only for 64-bit target_cpu. is_hwasan Current value (from the default) = false From //build/config/sanitizers/sanitizers.gni:19 Compile for Hardware-Assisted Address Sanitizer to find memory bugs (android/arm64 only). See http://clang.llvm.org/docs/HardwareAssistedAddressSanitizerDesign.html is_java_debug Current value (from the default) = true From //build/config/android/config.gni:18 Java debug on Android. Having this on enables multidexing, and turning it off will enable proguard. is_lsan Current value (from the default) = false From //build/config/sanitizers/sanitizers.gni:22 Compile for Leak Sanitizer to find leaks. is_msan Current value (from the default) = false From //build/config/sanitizers/sanitizers.gni:25 Compile for Memory Sanitizer to find uninitialized reads. is_nacl_glibc Current value (from the default) = false From //build/config/nacl/config.gni:12 True if nacl_glibc is used. is_nacl_saigo Current value (from the default) = false From //build/config/nacl/config.gni:15 True if saigo_newlib is used. is_official_build Current value (from the default) = false From //build/config/BUILDCONFIG.gn:136 Set to enable the official build level of optimization. This has nothing to do with branding, but enables an additional level of optimization above release (!is_debug). This might be better expressed as a tri-state (debug, release, official) but for historical reasons there are two separate flags. IMPORTANT NOTE: (!is_debug) is *not* sufficient to get satisfying performance. In particular, DCHECK()s are still enabled for release builds, which can halve overall performance, and do increase memory usage. Always set "is_official_build" to true for any build intended to ship to end-users. is_on_release_branch Current value (from the default) = false From //v8/gni/release_branch_toggle.gni:8 TODO(liviurau): Remove old name after Chromium config update https://crbug.com/1476977. is_p2p_enabled Current value (from the default) = true From //services/network/public/cpp/features.gni:15 Controls whether P2P is exposed by the network service. Optional to reduce avoid having Chrome on iOS depends on WebRTC and related third-party libraries (libvpx, libaom, ...). is_perfetto_build_generator Current value (from the default) = false From //third_party/perfetto/gn/perfetto.gni:82 All the tools/gen_* scripts set this to true. This is mainly used to locate .gni files from //gn rather than //build. is_perfetto_embedder Current value (from the default) = false From //third_party/perfetto/gn/perfetto.gni:87 This is for override via `gn args` (e.g. for tools/gen_xxx). Embedders based on GN (e.g. v8) should NOT set this and instead directly sets perfetto_build_with_embedder=true in their GN files. is_reven Current value (from the default) = false From //build/config/chromeos/args.gni:40 Refers to the separate branding required for the reven build. is_robolectric Current value (from the default) = false From //build/config/BUILDCONFIG.gn:156 Do not set this directly. It should be set only by //build/toolchains/android:robolectric_x64. True when compiling native code for use with robolectric_binary(). is_skylab Current value (from the default) = false From //build/config/chromeos/args.gni:29 Determines if we run the test in skylab, aka the CrOS labs. is_tsan Current value (from the default) = false From //build/config/sanitizers/sanitizers.gni:28 Compile for Thread Sanitizer to find threading bugs. is_ubsan Current value (from the default) = false From //build/config/sanitizers/sanitizers.gni:32 Compile for Undefined Behaviour Sanitizer to find various types of undefined behaviour (excludes vptr checks). is_ubsan_no_recover Current value (from the default) = false From //build/config/sanitizers/sanitizers.gni:35 Halt the program if a problem is detected. is_ubsan_security Current value (from the default) = false From //build/config/sanitizers/sanitizers.gni:83 Enables core ubsan security features. Will later be removed once it matches is_ubsan. is_ubsan_vptr Current value (from the default) = false From //build/config/sanitizers/sanitizers.gni:125 Compile for Undefined Behaviour Sanitizer's vptr checks. is_unsafe_developer_build Current value (from the default) = true From //base/BUILD.gn:60 Unsafe developer build. Has developer-friendly features that may weaken or disable security measures like sandboxing or ASLR. IMPORTANT: Unsafe developer builds should never be distributed to end users. is_win_arm64 Current value (from the default) = false From //third_party/angle/gni/angle.gni:154 Currently Windows on Arm doesn't support OpenGL or Vulkan. jinja_dir Current value (from the default) = "//third_party" From //v8/third_party/inspector_protocol/inspector_protocol.gni:7 Where jinja2 is located, in chromium it is //third_party. lacros_use_chromium_toolchain Current value (from the default) = false From //build/toolchain/cros/cros_config.gni:8 If set, build lacros with Chromium's toolchain instead of with Chrome OS's. TODO(thakis): Set this to `= chromeos_is_browser_only` once that works. ldso_path Current value (from the default) = "" From //build/config/gcc/BUILD.gn:20 libcxx_is_shared Current value (from the default) = true From //build/config/c++/c++.gni:54 WARNING: Setting this to a non-default value is highly discouraged. If true, libc++ will be built as a shared library; otherwise libc++ will be linked statically. Setting this to something other than the default is unsupported and can be broken by libc++ rolls. Note that if this is set to true, you must also set libcxx_abi_unstable=false, which is bad for performance and memory use. libcxx_natvis_include Current value (from the default) = true From //build/config/c++/c++.gni:29 Builds libcxx Natvis into the symbols for type visualization. Set to false to workaround http://crbug.com/966676 and http://crbug.com/966687. libcxx_revision Current value (from the default) = "28aa23ffb4c7344914a5b4ac7169f12e5a12333f" From //buildtools/deps_revisions.gni:8 Used to cause full rebuilds on libc++ rolls. This should be kept in sync with the libcxx_revision vars in //DEPS. libyuv_disable_jpeg Current value (from the default) = false From //third_party/libyuv/libyuv.gni:15 libyuv_disable_rvv Current value (from the default) = false From //third_party/libyuv/libyuv.gni:16 libyuv_include_tests Current value (from the default) = false From //third_party/libyuv/libyuv.gni:14 libyuv_symbols_visible Current value (from the default) = false From //third_party/libyuv/BUILD.gn:20 When building a shared library using a target in WebRTC or Chromium projects that depends on libyuv, setting this flag to true makes libyuv symbols visible inside that library. libyuv_use_absl_flags Current value (from the default) = true From //third_party/libyuv/BUILD.gn:15 Set to false to disable building with absl flags. libyuv_use_mmi Current value (from the default) = false From //third_party/libyuv/libyuv.gni:23 libyuv_use_msa Current value (from the default) = false From //third_party/libyuv/libyuv.gni:21 libyuv_use_neon Current value (from the default) = false From //third_party/libyuv/libyuv.gni:18 limit_android_deps Current value (from the default) = false From //build_overrides/build.gni:50 Limits the defined //third_party/android_deps targets to only "buildCompile" and "buildCompileNoDeps" targets. This is useful for third-party repositories which do not use JUnit tests. For instance, limit_android_deps == true removes "gn gen" requirement for //third_party/robolectric . link_pulseaudio Current value (from the default) = false From //media/media_options.gni:42 Allows distributions to link pulseaudio directly (DT_NEEDED) instead of using dlopen. This helps with automated detection of ABI mismatches and prevents silent errors. lld_emit_indexes_and_imports Current value (from the default) = false From //build/config/clang/clang.gni:37 Set to true to enable output of ThinLTO index and import files used for creating a Chromium MLGO corpus in the ThinLTO case. llvm_android_mainline Current value (from the default) = false From //build/toolchain/toolchain.gni:24 Cronet is shipped in AOSP, where it is built using the Android Mainline Clang. Please refer to go/cronet-builders-with-mainline-clang-design for more information. If this arg is set to true, we use the Android Mainline LLVM. llvm_force_head_revision Current value (from the default) = false From //build/toolchain/toolchain.gni:18 If this is set to true, we use the revision in the llvm repo to determine the CLANG_REVISION to use, instead of the version hard-coded into //tools/clang/scripts/update.py. This should only be used in conjunction with setting the llvm_force_head_revision DEPS variable when `gclient runhooks` is run as well. mac_sdk_min Current value (from the default) = "10.15" From //build/config/mac/mac_sdk_overrides.gni:12 mbi_mode Current value (from the default) = true From //content/common/features.gni:20 Whether or not MBI mode (Multiple Blink Isolates) should be enabled, depending on the build argument. media_use_ffmpeg Current value (from the default) = true From //media/media_options.gni:47 Enable usage of FFmpeg within the media library. Used for most software based decoding, demuxing, and sometimes optimized FFTs. If disabled, implementors must provide their own demuxers and decoders. media_use_libvpx Current value (from the default) = true From //media/media_options.gni:51 Enable usage of libvpx within the media library. Used for software based decoding of VP9 and VP8A type content. media_use_openh264 Current value (from the default) = false From //media/media_options.gni:63 mediapipe_build_with_gpu_support Current value (from the default) = false From //third_party/mediapipe/BUILD.gn:12 mips_use_mmi Current value (from the default) = false From //build/config/mips.gni:13 MIPS MultiMedia Instruction compilation flag. mojo_media_host Current value (from the default) = "gpu" From //media/media_options.gni:326 The process that the mojo MediaService runs in. By default, all services registered in |mojo_media_services| are hosted in the MediaService, with the exception that when |enable_library_cdms| is true, the "cdm" service will run in a separate CdmService in the CDM (utility) process, while other |mojo_media_services| still run in the MediaService in the process specified by "mojo_media_host". Valid options are: - "browser": Use mojo media service hosted in the browser process. - "gpu": Use mojo media service hosted in the gpu process. - "": Do not use mojo media service. mojo_media_services Current value (from the default) = ["audio_decoder", "audio_encoder", "video_decoder", "cdm"] From //media/media_options.gni:314 A list of mojo media services that should be used in the media pipeline. Valid entries in the list are: - "renderer": Use mojo-based media Renderer service. - "cdm": Use mojo-based Content Decryption Module. - "audio_decoder": Use mojo-based audio decoder in the default media Renderer. Cannot be used with the mojo Renderer above. - "video_decoder": Use mojo-based video decoder in the default media Renderer. Cannot be used with the mojo Renderer above. mojo_use_apple_channel Current value (from the default) = false From //mojo/features.gni:8 monolithic_binaries Current value (from the default) = true From //third_party/perfetto/gn/perfetto.gni:214 Only for local development. When true the binaries (perfetto, traced, ...) are monolithic and don't use a common shared library. This is mainly to avoid LD_LIBRARY_PATH dances when testing locally. On Windows we default to monolithic executables, because pairing dllexport/import adds extra complexity for little benefit. The only reason for monolithic_binaries=false is saving binary size, which matters mainly on Android. See also comments on PERFETTO_EXPORT_ENTRYPOINT in compiler.h. msan_track_origins Current value (from the default) = 2 From //build/config/sanitizers/sanitizers.gni:40 Track where uninitialized memory originates from. From fastest to slowest: 0 - no tracking, 1 - track only the initial allocation site, 2 - track the chain of stores leading from allocation site to use site. msvc_use_sse2 Current value (from the default) = true From //third_party/pdfium/pdfium.gni:84 Enable SSE2 for MSVC builds. Ignored if it's not a MSVC build. ndk_api_level_at_least_26 Current value (from the default) = false From //third_party/angle/gni/angle.gni:132 optimize_for_fuzzing Current value (from the default) = false From //build/config/compiler/BUILD.gn:92 Optimize for coverage guided fuzzing (balance between speed and number of branches) optimize_for_size Current value (from the default) = false From //build/config/compiler/compiler.gni:42 If true, optimize for size. Default to favoring speed over size for platforms not listed below. optimize_webui Current value (from the default) = false From //ui/webui/webui_features.gni:12 Optimize parts of Chrome's UI written with web technologies (HTML/CSS/JS) for runtime performance purposes. This does more work at compile time for speed benefits at runtime (so we skip in debug builds). optional_trace_events_enabled Current value (from the default) = true From //base/trace_event/tracing.gni:20 os_level_geolocation_permission_supported Current value (from the default) = false From //services/device/public/cpp/geolocation/buildflags.gni:11 Specifies if we support the OS level global geolocation permission for the current platform. This is exposed with the macro OS_LEVEL_GEOLOCATION_PERMISSION_SUPPORTED. ozone_auto_platforms Current value (from the default) = false From //build/config/ozone.gni:21 Select platforms automatically. Turn this off for manual control. ozone_extra_path Current value (from the default) = "//build/config/ozone_extra.gni" From //build/config/ozone.gni:18 Ozone extra platforms file path. Can be overridden to build out of tree ozone platforms. ozone_platform Current value (from the default) = "" From //build/config/ozone.gni:40 The platform that will used at runtime by default. This can be overridden with the command line flag --ozone-platform=. ozone_platform_cast Current value (from the default) = false From //build/config/ozone.gni:43 Compile the 'cast' platform. ozone_platform_drm Current value (from the default) = false From //build/config/ozone.gni:46 Compile the 'drm' platform. ozone_platform_flatland Current value (from the default) = false From //build/config/ozone.gni:52 Compile the 'flatland' platform. ozone_platform_gbm Current value (from the default) = -1 From //build/config/ozone.gni:25 TODO(petermcneeley): Backwards compatiblity support for VM images. Remove when deprecated. (https://crbug.com/1122009) ozone_platform_headless Current value (from the default) = false From //build/config/ozone.gni:49 Compile the 'headless' platform. ozone_platform_wayland Current value (from the default) = false From //build/config/ozone.gni:58 Compile the 'wayland' platform. ozone_platform_x11 Current value (from the default) = false From //build/config/ozone.gni:55 Compile the 'x11' platform. partition_alloc_optimized_debug Current value (from the default) = true From //base/allocator/partition_allocator/partition_alloc.gni:81 Turns on compiler optimizations in PartitionAlloc in Debug build. If enabling PartitionAlloc-Everywhere in Debug build for tests in Debug build, since all memory allocations and deallocations are executed by non-optimized PartitionAlloc, chrome (including tests) will be much slower. This will cause debug trybots' timeouts. If we want to debug PartitionAlloc itself, use partition_alloc_optimized_debug=false. Otherwise, use partition_alloc_optimized_debug=true to enable optimized PartitionAlloc. pdf_bundle_freetype Current value (from the default) = false From //third_party/pdfium/pdfium.gni:17 Build PDFium either: 1) When set to true, with a bundled FreeType, built from FreeType source code in //third_party/freetype and PDFium's FreeType configs in third_party/freetype/include. 2) When set to false, use whatever FreeType target is defined in //build/config/freetype. pdf_enable_click_logging Current value (from the default) = false From //third_party/pdfium/pdfium.gni:20 Generate logging messages for click events that reach PDFium pdf_enable_fontations Current value (from the default) = false From //third_party/pdfium/pdfium.gni:56 Build PDFium with experimental Fontations library support. If enabled, coexists in build with FreeType library and the default font library is selectable at runtime. Note that Fontations requires Skia and Rust support. pdf_enable_v8 Current value (from the default) = true From //third_party/pdfium/pdfium.gni:23 Build PDFium either with or without v8 support. pdf_enable_xfa Current value (from the default) = true From //third_party/pdfium/pdfium.gni:26 Build PDFium either with or without XFA Forms support. pdf_enable_xfa_bmp Current value (from the default) = true From //third_party/pdfium/pdfium.gni:29 If XFA, also support bmp codec. Ignored if not XFA. pdf_enable_xfa_gif Current value (from the default) = true From //third_party/pdfium/pdfium.gni:32 If XFA, also support gif codec. Ignored if not XFA. pdf_enable_xfa_png Current value (from the default) = true From //third_party/pdfium/pdfium.gni:35 If XFA, also support png codec. Ignored if not XFA. pdf_enable_xfa_tiff Current value (from the default) = true From //third_party/pdfium/pdfium.gni:38 If XFA, also support tiff codec. Ignored if not XFA. pdf_is_complete_lib Current value (from the default) = false From //third_party/pdfium/pdfium.gni:63 Build a complete static library pdf_is_standalone Current value (from the default) = false From //third_party/pdfium/pdfium.gni:60 Build PDFium standalone. Now only controls whether the test binaries are built. Most logic is conditioned by build_with_chromium. pdf_use_partition_alloc Current value (from the default) = true From //third_party/pdfium/pdfium.gni:45 Build PDFium against PartitionAlloc. When false, PDFium must build without requiring any PartitionAlloc headers or code to be present. When true, PDFium will use PartitionAlloc partitions to separate strings, scalars, etc. from other allocations. However, the use of PartitionAlloc for new or malloc is controlled by args in build_overrides/partition_alloc.gni. pdf_use_skia Current value (from the default) = true From //third_party/pdfium/pdfium.gni:50 Build PDFium to use Skia (experimental) for all PDFium graphics. If enabled, coexists in build with AGG graphics and the default renderer is selectable at runtime. perfetto_build_with_android Current value (from the default) = false From //third_party/perfetto/gn/perfetto.gni:78 The Android blueprint file generator set this to true (as well as is_perfetto_build_generator). This is just about being built in the Android tree (AOSP and internal) and is NOT related with the target OS. In standalone Android builds and Chromium Android builds, this is false. perfetto_enable_git_rev_version_header Current value (from the default) = false From //third_party/perfetto/gn/perfetto.gni:257 perfetto_force_dcheck Current value (from the default) = "" From //third_party/perfetto/gn/perfetto.gni:229 Whether DCHECKs should be enabled or not. Values: "on" | "off" | "". By default ("") DCHECKs are enabled only: - If DCHECK_ALWAYS_ON is defined (which is mainly a Chromium-ism). - On debug builds (i.e. if NDEBUG is NOT defined) but only in Chromium, Android and standalone builds. - On all other builds (e.g., SDK) it's off regardless of NDEBUG (unless DCHECK_ALWAYS_ON is defined). See base/logging.h for the implementation of all this. perfetto_force_dlog Current value (from the default) = "off" From //third_party/perfetto/gn/perfetto.gni:219 Whether DLOG should be enabled on debug builds (""), all builds ("on"), or none ("off"). We disable it by default for embedders to avoid spamming their console. perfetto_use_pkgconfig Current value (from the default) = false From //third_party/perfetto/gn/perfetto.gni:349 Used by CrOS builds. Uses pkg-config to determine the appropriate flags for including and linking system libraries. set `host_pkg_config` to the `BUILD_PKG_CONFIG` and set `pkg_config` to the target `PKG_CONFIG`. Note: that if this is enabled `perfetto_use_system_protobuf` should be also. perfetto_use_system_protobuf Current value (from the default) = false From //third_party/perfetto/gn/perfetto.gni:353 Used by CrOS system builds. Uses the system version of protobuf from /usr/include instead of the hermetic one. perfetto_use_system_sqlite Current value (from the default) = false From //third_party/perfetto/gn/perfetto.gni:357 Used by CrOS system builds. Uses the system version of sqlite from /usr/include instead of the hermetic one. perfetto_use_system_zlib Current value (from the default) = false From //third_party/perfetto/gn/perfetto.gni:359 perfetto_verbose_logs_enabled Current value (from the default) = false From //third_party/perfetto/gn/perfetto.gni:275 pgo_data_path Current value (from the default) = "" From //build/config/compiler/pgo/pgo.gni:35 When using chrome_pgo_phase = 2, read profile data from this path. pkg_config Current value (from the default) = "" From //build/config/linux/pkg_config.gni:33 A pkg-config wrapper to call instead of trying to find and call the right pkg-config directly. Wrappers like this are common in cross-compilation environments. Leaving it blank defaults to searching PATH for 'pkg-config' and relying on the sysroot mechanism to find the right .pc files. platform_has_optional_hevc_support Current value (from the default) = false From //media/media_options.gni:150 plus_addresses_use_internal_android_resources Current value (from the default) = false From //components/plus_addresses/buildflags.gni:11 print_unsymbolized_stack_traces Current value (from the default) = false From //base/third_party/symbolize/BUILD.gn:13 Stack traces will not include function names. Instead they will contain file and offset information that can be used with tools/valgrind/asan/asan_symbolize.py. By piping stderr through this script, and also enabling symbol_level = 2, you can get much more detailed stack traces with file names and line numbers, even in non-ASAN builds. produce_v8_compile_hints Current value (from the default) = true From //third_party/blink/renderer/bindings/bindings.gni:7 Enable V8 to produce hints regarding which functions to compile eagerly. proprietary_codecs Current value (from the default) = false From //build/config/features.gni:31 Enables proprietary codecs and demuxers; e.g. H264, AAC, MP3, and MP4. We always build Google Chrome and Chromecast with proprietary codecs. Note: this flag is used by WebRTC which is DEPSed into Chrome. Moving it out of //build will require using the build_overrides directory. Do not add any other conditions to the following line. TODO(crbug.com/1314528): Remove chromecast-related conditions and force builds to explicitly specify this. raw_ptr_zero_on_construct Current value (from the default) = true From //base/allocator/partition_allocator/partition_alloc.gni:375 raw_ptr_zero_on_destruct Current value (from the default) = false From //base/allocator/partition_allocator/partition_alloc.gni:377 raw_ptr_zero_on_move Current value (from the default) = true From //base/allocator/partition_allocator/partition_alloc.gni:376 rbe_bin_dir Current value (from the default) = "../../buildtools/reclient" From //build/toolchain/rbe.gni:5 The directory where the re-client tooling binaries are. rbe_cc_cfg_file Current value (from the default) = "../../buildtools/reclient_cfgs/chromium-browser-clang/rewrapper_linux.cfg" From //build/toolchain/rbe.gni:29 rbe_cfg_dir Current value (from the default) = "//buildtools/reclient_cfgs" From //build/toolchain/rbe.gni:20 The directory where the re-client configuration files are. rbe_cros_cc_wrapper Current value (from the default) = "../../buildtools/reclient/rewrapper" From //build/toolchain/rbe.gni:52 Set to the path of the RBE recleint wrapper for ChromeOS. rbe_exec_root Current value (from the default) = "/home/alex/chromium/src/" From //build/toolchain/rbe.gni:11 Execution root - this should be the root of the source tree. This is defined here instead of in the config file because this will vary depending on where the user has placed the chromium source on their system. rbe_link_cfg_file Current value (from the default) = "../../buildtools/reclient_cfgs/chromium-browser-clang/rewrapper_linux_link.cfg" From //build/toolchain/rbe.gni:31 rbe_py_cfg_file Current value (from the default) = "../../buildtools/reclient_cfgs/python/rewrapper_linux.cfg" From //build/toolchain/rbe.gni:28 remoting_internal Current value (from the default) = false From //remoting/build/config/remoting_build.gni:28 You can set the variable 'remoting_internal' to true to include Google- internal sources and implementations in a developer build. Setting this variable explicitly to true will cause your build to fail if the //remoting/internal directory is not present in your checkout. remoting_webrtc_verbose_logging Current value (from the default) = false From //remoting/build/config/remoting_logging.gni:13 Enabling this will cause WebRTC's LS_INFO and LS_VERBOSE (level 1) messages to appear in the debug log output. Note that WebRTC's "VERBOSE1" messages are very spammy and it is impossible to separately filter LS_INFO and LS_VERBOSE messages (see third_party/webrtc_overrides/rtc_base/). So a separate GN option is provided here, to allow this logging to be quickly enabled for Debug or Release builds. remoting_wix_path Current value (from the default) = "" From //remoting/host/installer/win/wix_path.gni:9 Absolute directory containing the wix binary. removed_rust_stdlib_libs Current value (from the default) = [] From //build/config/rust.gni:86 Any removed std rlibs in your Rust toolchain, relative to the standard Rust toolchain. Typically used with 'rust_sysroot_absolute' restricted_traces_outside_of_apk Current value (from the default) = false From //third_party/angle/gni/angle.gni:43 Only bundle traces in the APK if we're building a subset root_extra_deps Current value (from the default) = [] From //BUILD.gn:64 A list of extra dependencies to add to the root target. This allows a checkout to add additional targets without explicitly changing any checked- in files. rtc_audio_device_plays_sinus_tone Current value (from the default) = false From //third_party/webrtc/webrtc.gni:206 When set to true, replace the audio output with a sinus tone at 440Hz. The ADM will ask for audio data from WebRTC but instead of reading real audio samples from NetEQ, a sinus tone will be generated and replace the real audio samples. rtc_build_dcsctp Current value (from the default) = true From //third_party/webrtc/webrtc.gni:340 Enable the dcsctp backend for DataChannels and related unittests rtc_build_examples Current value (from the default) = true From //third_party/webrtc/webrtc.gni:138 Set this to false to skip building examples. rtc_build_json Current value (from the default) = true From //third_party/webrtc/webrtc.gni:280 Disable these to not build components which can be externally provided. rtc_build_libevent Current value (from the default) = false From //third_party/webrtc/webrtc.gni:291 rtc_build_libsrtp Current value (from the default) = true From //third_party/webrtc/webrtc.gni:281 rtc_build_libvpx Current value (from the default) = true From //third_party/webrtc/webrtc.gni:282 rtc_build_opus Current value (from the default) = true From //third_party/webrtc/webrtc.gni:284 rtc_build_ssl Current value (from the default) = true From //third_party/webrtc/webrtc.gni:285 rtc_build_tools Current value (from the default) = true From //third_party/webrtc/webrtc.gni:141 Set this to false to skip building tools. rtc_build_with_neon Current value (from the default) = false From //third_party/webrtc/webrtc.gni:177 rtc_builtin_ssl_root_certificates Current value (from the default) = true From //third_party/webrtc/webrtc.gni:100 Setting this to false will require the API user to pass in their own SSLCertificateVerifier to verify the certificates presented from a TLS-TURN server. In return disabling this saves around 100kb in the binary. rtc_common_public_deps Current value = ["//base"] From //.gn:46 Overridden from the default = [] From //third_party/webrtc/webrtc.gni:262 Embedders can define dependencies needed by WebRTC. Dependencies can be configs or targets. This can be defined in their `.gn` file. In practise, this is use by Chromium: Targets from `//third_party/webrtc_overrides` are depending on Chrome's `//base`, but WebRTC does not declare its public dependencies. See webrtc:8603. Instead WebRTC is using a global common dependencies. rtc_disable_check_msg Current value (from the default) = false From //third_party/webrtc/webrtc.gni:328 Set this to true to disable detailed error message and logging for RTC_CHECKs. rtc_disable_logging Current value (from the default) = false From //third_party/webrtc/webrtc.gni:321 Set this to true to fully remove logging from WebRTC. rtc_disable_metrics Current value (from the default) = false From //third_party/webrtc/webrtc.gni:331 Set this to true to disable webrtc metrics. rtc_disable_trace_events Current value (from the default) = false From //third_party/webrtc/webrtc.gni:324 Set this to true to disable trace events. rtc_dlog_always_on Current value (from the default) = false From //third_party/webrtc/webrtc.gni:59 Setting this to true, will make RTC_DLOG() expand to log statements instead of being removed by the preprocessor. This is useful for example to be able to get RTC_DLOGs on a release build. rtc_enable_android_aaudio Current value (from the default) = false From //third_party/webrtc/webrtc.gni:160 Experimental: enable use of Android AAudio which requires Android SDK 26 or above and NDK r16 or above. rtc_enable_avx2 Current value (from the default) = true From //third_party/webrtc/webrtc.gni:307 rtc_enable_bwe_test_logging Current value (from the default) = false From //third_party/webrtc/webrtc.gni:135 Set this to true to enable BWE test logging. rtc_enable_external_auth Current value (from the default) = true From //third_party/webrtc/webrtc.gni:125 Enable when an external authentication mechanism is used for performing packet authentication for RTP packets instead of libsrtp. rtc_enable_google_benchmarks Current value (from the default) = true From //third_party/webrtc/webrtc.gni:63 Enables additional build targets that rely on //third_party/google_benchmarks. rtc_enable_grpc Current value (from the default) = false From //third_party/webrtc/webrtc.gni:343 Enable gRPC used for negotiation in multiprocess tests rtc_enable_libevent Current value (from the default) = false From //third_party/webrtc/webrtc.gni:290 rtc_enable_objc_symbol_export Current value (from the default) = false From //third_party/webrtc/webrtc.gni:70 Setting this to true will make RTC_OBJC_EXPORT expand to code that will manage symbols visibility. By default, Obj-C/Obj-C++ symbols are exported if C++ symbols are but setting this arg to true while keeping rtc_enable_symbol_export=false will only export RTC_OBJC_EXPORT annotated symbols. rtc_enable_protobuf Current value (from the default) = true From //third_party/webrtc/webrtc.gni:274 Enables the use of protocol buffers for debug recordings. rtc_enable_sctp Current value (from the default) = true From //third_party/webrtc/webrtc.gni:277 Set this to disable building with support for SCTP data channels. rtc_enable_symbol_export Current value (from the default) = false From //third_party/webrtc/webrtc.gni:48 Setting this to true will make RTC_EXPORT (see rtc_base/system/rtc_export.h) expand to code that will manage symbols visibility. rtc_enable_win_wgc Current value (from the default) = true From //third_party/webrtc/webrtc.gni:234 When set to true, a capturer implementation that uses the Windows.Graphics.Capture APIs will be available for use. This introduces a dependency on the Win 10 SDK v10.0.17763.0. rtc_exclude_audio_processing_module Current value (from the default) = false From //third_party/webrtc/webrtc.gni:132 Selects whether the audio processing module should be excluded. rtc_exclude_field_trial_default Current value (from the default) = true From //third_party/webrtc/webrtc.gni:80 When WebRTC is built as part of Chromium it should exclude the default implementation of field_trial unless it is building for NACL or Chromecast. rtc_exclude_metrics_default Current value (from the default) = true From //third_party/webrtc/webrtc.gni:89 Setting this to true will define WEBRTC_EXCLUDE_METRICS_DEFAULT which will tell the pre-processor to remove the default definition of symbols needed to use metrics. In that case a new implementation needs to be provided. rtc_exclude_system_time Current value (from the default) = true From //third_party/webrtc/webrtc.gni:95 Setting this to true will define WEBRTC_EXCLUDE_SYSTEM_TIME which will tell the pre-processor to remove the default definition of the SystemTimeNanos() which is defined in rtc_base/system_time.cc. In that case a new implementation needs to be provided. rtc_exclude_transient_suppressor Current value (from the default) = false From //third_party/webrtc/webrtc.gni:335 Set this to true to exclude the transient suppressor in the audio processing module from the build. rtc_include_builtin_audio_codecs Current value (from the default) = true From //third_party/webrtc/webrtc.gni:221 When set to false, builtin audio encoder/decoder factories and all the audio codecs they depend on will not be included in libwebrtc.{a|lib} (they will still be included in libjingle_peerconnection_so.so and WebRTC.framework) rtc_include_dav1d_in_internal_decoder_factory Current value (from the default) = true From //third_party/webrtc/webrtc.gni:237 Includes the dav1d decoder in the internal decoder factory when set to true. rtc_include_ilbc Current value = false From //.gn:51 Overridden from the default = true From //third_party/webrtc/webrtc.gni:103 Include the iLBC audio codec? rtc_include_internal_audio_device Current value (from the default) = false From //third_party/webrtc/webrtc.gni:302 Chromium uses its own IO handling, so the internal ADM is only built for standalone WebRTC. rtc_include_opus Current value (from the default) = true From //third_party/webrtc/webrtc.gni:106 Disable this to avoid building the Opus audio codec. rtc_include_pulse_audio Current value (from the default) = false From //third_party/webrtc/webrtc.gni:298 Excluded in Chromium since its prerequisites don't require Pulse Audio. rtc_include_tests Current value (from the default) = false From //third_party/webrtc/webrtc.gni:314 Set this to true to build the unit tests. Disabled when building with Chromium or Mozilla. rtc_ios_use_opengl_rendering Current value (from the default) = false From //third_party/webrtc/webrtc.gni:215 Determines whether OpenGL is available on iOS. rtc_jni_generator_legacy_symbols Current value (from the default) = false From //third_party/webrtc/webrtc.gni:54 If set to true, C++ code will refer to the new JNI Generator symbols. If set to false the old ones will be used (to provide a nice update path). rtc_jsoncpp_root Current value (from the default) = "//third_party/jsoncpp/source/include" From //third_party/webrtc/webrtc.gni:117 Used to specify an external Jsoncpp include path when not compiling the library that comes with WebRTC (i.e. rtc_build_json == 0). rtc_libvpx_build_vp9 Current value (from the default) = true From //third_party/webrtc/webrtc.gni:283 rtc_link_pipewire Current value (from the default) = false From //third_party/webrtc/webrtc.gni:153 Set this to link PipeWire and required libraries directly instead of using the dlopen. rtc_objc_prefix Current value (from the default) = "" From //third_party/webrtc/webrtc.gni:253 If different from "", symbols exported with RTC_OBJC_EXPORT will be prefixed with this string. See the definition of RTC_OBJC_TYPE_PREFIX in the code. rtc_opus_support_120ms_ptime Current value (from the default) = true From //third_party/webrtc/webrtc.gni:110 Enable this if the Opus version upon which WebRTC is built supports direct encoding of 120 ms packets. rtc_opus_variable_complexity Current value (from the default) = false From //third_party/webrtc/webrtc.gni:113 Enable this to let the Opus audio codec change complexity on the fly. rtc_prefer_fixed_point Current value (from the default) = false From //third_party/webrtc/webrtc.gni:170 Selects fixed-point code where possible. rtc_sanitize_coverage Current value (from the default) = "" From //third_party/webrtc/webrtc.gni:167 Set to "func", "block", "edge" for coverage generation. At unit test runtime set UBSAN_OPTIONS="coverage=1". It is recommend to set include_examples=0. Use llvm's sancov -html-report for human readable reports. See http://clang.llvm.org/docs/SanitizerCoverage.html . rtc_ssl_root Current value (from the default) = "" From //third_party/webrtc/webrtc.gni:121 Used to specify an external OpenSSL include path when not compiling the library that comes with WebRTC (i.e. rtc_build_ssl == 0). rtc_strict_field_trials Current value (from the default) = "" From //third_party/webrtc/webrtc.gni:248 When enabled, a run-time check will make sure that all field trial keys have been registered in accordance with the field trial policy, see g3doc/field-trials.md. The value can be set to the following: "dcheck": RTC_DCHECKs that the field trial has been registered. RTC_DCHECK must be enabled separately. "warn": RTC_LOGs a message with LS_WARNING severity if the field trial hasn't been registered. rtc_use_absl_mutex Current value (from the default) = false From //third_party/webrtc/webrtc.gni:196 Enable this flag to make webrtc::Mutex be implemented by absl::Mutex. rtc_use_dummy_audio_file_devices Current value (from the default) = false From //third_party/webrtc/webrtc.gni:200 By default, use normal platform audio support or dummy audio, but don't use file-based audio playout and record. rtc_use_h264 Current value (from the default) = false From //third_party/webrtc/webrtc.gni:190 rtc_use_h265 Current value (from the default) = false From //third_party/webrtc/webrtc.gni:193 Enable to use H265 rtc_use_pipewire Current value (from the default) = false From //third_party/webrtc/webrtc.gni:150 Set this to use PipeWire on the Wayland display server. By default it's only enabled on desktop Linux (excludes ChromeOS) and only when using the sysroot as PipeWire is not available in older and supported Ubuntu and Debian distributions. rtc_use_x11 Current value (from the default) = false From //third_party/webrtc/webrtc.gni:144 Set this to false to skip building code that requires X11. rtc_use_x11_extensions Current value (from the default) = false From //third_party/webrtc/webrtc.gni:318 Set this to false to skip building code that also requires X11 extensions such as Xdamage, Xfixes. rtc_win_undef_unicode Current value (from the default) = false From //third_party/webrtc/webrtc.gni:229 When set to true and in a standalone build, it will undefine UNICODE and _UNICODE (which are always defined globally by the Chromium Windows toolchain). This is only needed for testing purposes, WebRTC wants to be sure it doesn't assume /DUNICODE and /D_UNICODE but that it explicitly uses wide character functions. runtime_call_stats_count_everything Current value (from the default) = false From //third_party/blink/renderer/platform/BUILD.gn:225 rust_sysroot_absolute Current value (from the default) = "" From //build/config/rust.gni:57 Chromium provides a Rust toolchain in //third_party/rust-toolchain. To use a custom toolchain instead, specify an absolute path to the root of a Rust sysroot, which will have a 'bin' directory and others. Commonly /.rustup/toolchains/nightly-- rust_toolchain_supports_nacl Current value (from the default) = false From //build/config/rust.gni:67 If you're using a Rust toolchain as specified by rust_sysroot_absolute, you can specify whether it supports nacl here. rustc_version Current value (from the default) = "" From //build/config/rust.gni:63 If you're using a Rust toolchain as specified by rust_sysroot_absolute, set this to the output of `rustc -V`. Changing this string will cause all Rust targets to be rebuilt, which allows you to update your toolchain and not break incremental builds. safe_browsing_mode Current value (from the default) = 1 From //components/safe_browsing/buildflags.gni:20 sample_profile_is_accurate Current value (from the default) = false From //build/config/compiler/compiler.gni:150 Whether we should consider the profile we're using to be accurate. Accurate profiles have the benefit of (potentially substantial) binary size reductions, by instructing the compiler to optimize cold and uncovered functions heavily for size. This often comes at the cost of performance. sanitizer_coverage_flags Current value (from the default) = "" From //build/config/sanitizers/sanitizers.gni:97 Value for -fsanitize-coverage flag. Setting this causes use_sanitizer_coverage to be enabled. This flag is not used for libFuzzer (use_libfuzzer=true). Instead, we use: -fsanitize=fuzzer-no-link Default value when unset and use_fuzzing_engine=true: trace-pc-guard Default value when unset and use_sanitizer_coverage=true: trace-pc-guard,indirect-calls save_reproducers_on_lld_crash Current value (from the default) = false From //build/config/compiler/BUILD.gn:188 If true, linker crashes will be rerun with `--reproduce` which causes a reproducer file to be saved. seed_corpus_dir Current value (from the default) = "//out/test/gen/components/viz/service/compositor_frame_fuzzer/binary_seed_corpus" From //components/viz/service/compositor_frame_fuzzer/BUILD.gn:9 show_includes Current value (from the default) = false From //build/config/compiler/BUILD.gn:179 Enable -H, which prints the include tree during compilation. For use by tools/clang/scripts/analyze_includes.py simple_template_names Current value (from the default) = false From //build/config/compiler/BUILD.gn:207 Use DWARF simple template names, with the following exceptions: * Windows is not supported as it doesn't use DWARF. * Apple platforms (e.g. MacOS, iPhone, iPad) aren't supported because xcode lldb doesn't have the needed changes yet. TODO(crbug.com/1379070): Remove if the upstream default ever changes. This greatly reduces the size of debug builds, at the cost of debugging information which is required by some specialized debugging tools. single_module_mode_handle_verifier Current value (from the default) = false From //base/win/BUILD.gn:11 Indicates if the handle verifier should operate in a single module mode. By default a single instance gets shared by all the modules. skia_enable_skshaper Current value (from the default) = true From //third_party/skia/modules/skshaper/skshaper.gni:38 skia_enable_skshaper_tests Current value (from the default) = true From //third_party/skia/modules/skshaper/skshaper.gni:41 skia_use_dawn Current value (from the default) = true From //skia/features.gni:12 Enable experimental Skia Graphite Dawn backend. Enabled on platforms where the team has verified that at least basic rendering to the screen is working. skia_use_metal Current value (from the default) = false From //skia/features.gni:18 Enable experimental Skia Graphite Metal backend. Intended only for debugging on non-official developer builds. skip_buildtools_check Current value (from the default) = false From //third_party/perfetto/gn/perfetto.gni:342 Skip buildtools dependency checks (needed for ChromeOS). strip_debug_info Current value (from the default) = false From //build/config/compiler/compiler.gni:65 Android-only: Strip the debug info of libraries within lib.unstripped to reduce size. As long as symbol_level > 0, this will still allow stacks to be symbolized. subpixel_font_rendering_disabled Current value (from the default) = false From //gpu/ipc/service/BUILD.gn:14 support_external_google_api_key Current value (from the default) = false From //google_apis/BUILD.gn:80 supports_llvm Current value (from the default) = true From //third_party/swiftshader/src/Reactor/reactor.gni:17 supports_os_accessibility_service Current value (from the default) = false From //services/accessibility/buildflags.gni:26 Used to determine if the Accessibility Service should run assistive technology features, or if the service is running in a browser embedded in an OS that already has those features. supports_subzero Current value (from the default) = true From //third_party/swiftshader/src/Reactor/reactor.gni:13 Subzero doesn't support ARM64, MIPS64, PPC64, and RISCV64 (only x86 and ARMv7a). swiftshader_optimized_debug_build Current value (from the default) = true From //third_party/swiftshader/src/swiftshader.gni:23 By default, build SwiftShader with optimizations enabled in debug for performance reasons. Set to false to build as unoptimized. swiftshader_startup_dialog Current value (from the default) = false From //third_party/swiftshader/src/swiftshader.gni:27 If enabled, debug builds on Windows will pop up a dialog when the SwiftShader DLL gets loaded, to facilitate attaching a debugger. symbol_level Current value (from the default) = -1 From //build/config/compiler/compiler.gni:60 How many symbols to include in the build. This affects the performance of the build since the symbols are large and dealing with them is slow. 2 means regular build with symbols. 1 means minimal symbols, usually enough for backtraces only. Symbols with internal linkage (static functions or those in anonymous namespaces) may not appear when using this level. 0 means no symbols. -1 means auto-set according to debug/release and platform. sync_user_agent_product Current value (from the default) = "Chrome" From //components/sync/base/BUILD.gn:10 Controls the product part of the user agent calculated in sync_util.cc. sysroot Current value (from the default) = "" From //build/config/sysroot.gni:18 The path of the sysroot for the current toolchain. If empty, default sysroot is used. system_headers_in_deps Current value (from the default) = false From //build/toolchain/gcc_toolchain.gni:38 Use -MD instead of -MMD for compiler commands. This is useful for tracking the comprehensive set of dependencies. It's also required when building without the sysroot so that updates to system header files trigger a rebuild (when using the sysroot, the CR_SYSROOT_KEY define takes care of this already). system_libdir Current value (from the default) = "lib" From //build/config/linux/pkg_config.gni:47 CrOS systemroots place pkgconfig files at /usr/share/pkgconfig and one of /usr/lib/pkgconfig or /usr/lib64/pkgconfig depending on whether the systemroot is for a 32 or 64 bit architecture. When build under GYP, CrOS board builds specify the 'system_libdir' variable as part of the GYP_DEFINES provided by the CrOS emerge build or simple chrome build scheme. This variable permits controlling this for GN builds in similar fashion by setting the `system_libdir` variable in the build's args.gn file to 'lib' or 'lib64' as appropriate for the target architecture. target_cpu Current value (from the default) = "" (Internally set; try `gn help target_cpu`.) target_environment Current value (from the default) = "" From //build/config/ios/config.gni:11 Configure the environment for which to build. Could be either "device", "simulator" or "catalyst". If unspecified, then it will be assumed to be "simulator" if the target_cpu is "x68" or "x64", "device" otherwise. The default is only there for compatibility reasons and will be removed (see crbug.com/1138425 for more details). target_is_ios_device Current value (from the default) = false From //v8/gni/v8.gni:147 iOS device does not support executable code pages. Not we use target_os == "ios" here because it isn't equivalent to is_ios (is_ios is based on host_os). target_os Current value = "win" From //out/test/args.gn:3 Overridden from the default = "" (Internally set; try `gn help target_os`.) target_rpath Current value (from the default) = "" From //build/config/cast.gni:16 If non empty, rpath of executables is set to this. If empty, default value is used. target_sysroot Current value (from the default) = "" From //build/config/sysroot.gni:11 The path of the sysroot that is applied when compiling using the target toolchain. target_sysroot_dir Current value (from the default) = "//build/linux" From //build/config/sysroot.gni:14 The path to directory containing linux sysroot images. target_winuwp_family Current value (from the default) = "app" From //build/config/win/BUILD.gn:36 possible values: "app" - Windows Store Applications "phone" - Windows Phone Applications "system" - Windows Drivers and Tools "server" - Windows Server Applications "desktop" - Windows Desktop Applications target_winuwp_version Current value (from the default) = "10" From //build/config/win/BUILD.gn:28 possible values for target_winuwp_version: "10" - Windows UWP 10 "8.1" - Windows RT 8.1 "8.0" - Windows RT 8.0 tests_have_location_tags Current value (from the default) = true From //testing/test.gni:21 Some component repos (e.g. ANGLE) import //testing but do not have "location_tags.json", and so we don't want to try and upload the tags for their tests. And, some build configs may simply turn off generation altogether. thin_lto_enable_cache Current value (from the default) = true From //build/config/compiler/BUILD.gn:139 Whether to enable thin lto incremental builds. See: https://clang.llvm.org/docs/ThinLTO.html#incremental The cache can lead to non-determinism: https://crbug.com/1486045 thin_lto_enable_optimizations Current value (from the default) = false From //build/config/compiler/BUILD.gn:133 tint_build_benchmarks Current value (from the default) = true From //third_party/dawn/scripts/tint_overrides_with_defaults.gni:134 tint_build_cmds Current value (from the default) = false From //third_party/dawn/scripts/tint_overrides_with_defaults.gni:74 tint_build_glsl_validator Current value (from the default) = true From //third_party/dawn/scripts/tint_overrides_with_defaults.gni:114 tint_build_glsl_writer Current value (from the default) = true From //third_party/dawn/scripts/tint_overrides_with_defaults.gni:109 tint_build_hlsl_writer Current value (from the default) = true From //third_party/dawn/scripts/tint_overrides_with_defaults.gni:104 tint_build_ir_binary Current value (from the default) = true From //third_party/dawn/scripts/tint_overrides_with_defaults.gni:124 tint_build_msl_writer Current value (from the default) = true From //third_party/dawn/scripts/tint_overrides_with_defaults.gni:99 tint_build_syntax_tree_writer Current value (from the default) = false From //third_party/dawn/scripts/tint_overrides_with_defaults.gni:119 tint_build_unittests Current value (from the default) = true From //third_party/dawn/scripts/tint_overrides_with_defaults.gni:129 tint_glslang_dir Current value (from the default) = "//third_party/vulkan-deps/glslang/src" From //third_party/dawn/scripts/tint_overrides_with_defaults.gni:60 tint_src_dir Current value (from the default) = "//third_party/dawn/src/tint" From //third_party/dawn/scripts/tint_overrides_with_defaults.gni:141 toolchain_for_rust_host_build_tools Current value (from the default) = false From //build/toolchain/toolchain.gni:32 Whether this toolchain is to be used for building host tools that are consumed during the build process. That includes proc macros and Cargo build scripts. toolchain_supports_rust_thin_lto Current value (from the default) = true From //build/config/rust.gni:78 Whether artifacts produced by the Rust compiler can participate in ThinLTO. One important consideration is whether the linker uses the same LLVM version as `rustc` (i.e. if it can understand the LLVM-IR from the compilation artifacts produced by `rustc`). In LaCrOS and ash builds this may not be true - see b/299483903. TODO(https://crbug.com/1482525): Re-enable ThinLTO for Rust on LaCrOS TODO(b/300937673): Re-enable ThinLTO for Rust on ash-chrome toolkit_views Current value (from the default) = true From //build/config/ui.gni:33 True means the UI is built using the "views" framework. treat_warnings_as_errors Current value (from the default) = true From //build/config/compiler/compiler.gni:50 Default to warnings as errors for default workflow, where we catch warnings with known toolchains. Allow overriding this e.g. for Chromium builds on Linux that could use a different version of the compiler. With GCC, warnings in no-Chromium code are always not treated as errors. use_afl Current value (from the default) = false From //build/config/sanitizers/sanitizers.gni:76 Compile for fuzzing with AFL. use_allocator_shim Current value (from the default) = false From //base/allocator/partition_allocator/partition_alloc.gni:39 Causes all the allocations to be routed via allocator_shim.cc. Usually, the allocator shim will, in turn, route them to Partition Alloc, but other allocators are also supported by the allocator shim. use_alsa Current value (from the default) = false From //media/media_options.gni:191 Enables runtime selection of ALSA library for audio. use_android_unwinder_v2 Current value (from the default) = true From //build/config/compiler/compiler.gni:144 Set to true to use the android unwinder V2 implementation. use_arc_protected_media Current value (from the default) = false From //media/gpu/args.gni:34 Indicates if the ChromeOS protected media functionality should also be utilized by HW video decoding for ARC. use_asan_backup_ref_ptr Current value (from the default) = false From //base/allocator/partition_allocator/partition_alloc.gni:163 use_asan_unowned_ptr Current value (from the default) = false From //base/allocator/partition_allocator/partition_alloc.gni:167 Use probe-on-destruct unowned ptr detection with ASAN. use_aura Current value (from the default) = true From //build/config/ui.gni:28 Indicates if Aura is enabled. Aura is a low-level windowing library, sort of a replacement for GDI or GTK. use_av1_hw_decoder Current value (from the default) = true From //media/gpu/args.gni:42 A platform that is capable of hardware av1 decoding. use_blink Current value (from the default) = true From //build/config/features.gni:41 use_blink_extensions_chromeos Current value (from the default) = false From //third_party/blink/renderer/config.gni:46 If true, the experimental renderer extensions library will be used. use_bluez Current value (from the default) = false From //device/bluetooth/cast_bluetooth.gni:5 use_bundled_fontconfig Current value (from the default) = true From //third_party/fontconfig/fontconfig.gni:11 use_centipede Current value (from the default) = false From //build/config/sanitizers/sanitizers.gni:73 Compile for fuzzing with centipede. See https://github.com/google/centipede use_cfi_cast Current value (from the default) = false From //build/config/sanitizers/sanitizers.gni:122 Enable checks for bad casts: derived cast and unrelated cast. TODO(krasin): remove this, when we're ready to add these checks by default. https://crbug.com/626794 use_cfi_diag Current value (from the default) = false From //build/config/sanitizers/sanitizers.gni:61 Print detailed diagnostics when Control Flow Integrity detects a violation. use_cfi_icall Current value (from the default) = false From //build/config/sanitizers/sanitizers.gni:58 use_cfi_recover Current value (from the default) = false From //build/config/sanitizers/sanitizers.gni:65 Let Control Flow Integrity continue execution instead of crashing when printing diagnostics (use_cfi_diag = true). use_chromeos_protected_av1 Current value (from the default) = false From //media/gpu/args.gni:39 Indicates if ChromeOS protected media supports the AV1 codec. By default H.264, VP9 and HEVC are enabled if protected media is enabled; AV1 is optional. use_chromeos_protected_media Current value (from the default) = false From //media/gpu/args.gni:30 Indicates if ChromeOS protected media support exists. This is used to enable the CDM daemon in Chrome OS as well as support for encrypted content with HW video decoders. This is always enabled for Lacros because it detects support at runtime. use_clang_coverage Current value (from the default) = false From //build/config/coverage/coverage.gni:23 use_clang_diagnostics_format Current value (from the default) = false From //build/config/win/BUILD.gn:45 Set this to use clang-style diagnostics format instead of MSVC-style, which is useful in e.g. Emacs compilation mode. E.g.: Without this, clang emits a diagnostic message like this: foo/bar.cc(12,34): error: something went wrong and with this switch, clang emits it like this: foo/bar.cc:12:34: error: something went wrong use_clang_profiling Current value (from the default) = false From //build/config/profiling/profiling.gni:10 use_clang_profiling_inside_sandbox Current value (from the default) = false From //build/config/sanitizers/sanitizers.gni:229 use_command_buffer Current value (from the default) = true From //device/vr/buildflags/buildflags.gni:23 use_cras Current value (from the default) = false From //media/media_options.gni:67 Override to dynamically link the cras (ChromeOS audio) library. use_crash_key_stubs Current value (from the default) = false From //components/crash/core/common/BUILD.gn:12 If set to true, this will stub out and disable the entire crash key system. use_cups Current value (from the default) = false From //printing/buildflags/buildflags.gni:40 use_cups_ipp Current value (from the default) = false From //printing/buildflags/buildflags.gni:74 Enables the CUPS IPP printing backend. TODO(crbug.com/226176): Remove this after CUPS PPD API calls are removed. use_custom_libcxx Current value (from the default) = true From //build/config/c++/c++.gni:15 Use in-tree libc++ (buildtools/third_party/libc++ and buildtools/third_party/libc++abi) instead of the system C++ library for C++ standard library support. Don't check in changes that set this to false for more platforms; doing so is not supported. use_custom_libcxx_for_host Current value (from the default) = false From //build/config/c++/c++.gni:24 Use libc++ instead of stdlibc++ when using the host_cpu toolchain, even if use_custom_libcxx is false. This is useful for cross-compiles where a custom toolchain for the target_cpu has been set as the default toolchain, but use_custom_libcxx should still be true when building for the host. The expected usage is to set use_custom_libcxx=false and use_custom_libcxx_for_host=true in the passed in buildargs. use_custom_libunwind Current value (from the default) = false From //build/config/unwind.gni:6 Use in-tree libunwind (buildtools/third_party/libunwind) instead of whatever system library provides unwind symbols (e.g. libgcc). use_cxx17 Current value (from the default) = false From //build_overrides/build.gni:58 Allow projects that wish to stay on C++17 to override Chromium's default. TODO(crbug.com/1402249): evaluate removing this end of 2023 use_dawn Current value (from the default) = true From //ui/gl/features.gni:21 Should Dawn support be compiled to back the WebGPU implementation? Also controls linking Dawn dependencies in such as SPIRV-Tools/SPIRV-Cross. use_dbus Current value (from the default) = false From //build/config/features.gni:37 use_debug_fission Current value (from the default) = "default" From //build/config/compiler/compiler.gni:81 use_debug_fission: whether to use split DWARF debug info files. This can reduce link time significantly, but is incompatible with some utilities such as icecc and ccache. Requires gold and gcc >= 4.8 or clang. http://gcc.gnu.org/wiki/DebugFission This is a placeholder value indicating that the code below should set the default. This is necessary to delay the evaluation of the default value expression until after its input values such as use_gold have been set, e.g. by a toolchain_args() block. use_dummy_lastchange Current value (from the default) = true From //build/util/lastchange.gni:9 use_dwarf5 Current value (from the default) = false From //build/config/compiler/BUILD.gn:167 Enable DWARF v5. use_egl Current value (from the default) = true From //ui/gl/features.gni:17 use_external_fuzzing_engine Current value (from the default) = false From //build/config/sanitizers/sanitizers.gni:79 Compile for fuzzing with an external engine (e.g., Grammarinator). use_external_popup_menu Current value (from the default) = false From //content/common/features.gni:11 Whether or not to use external popup menu. use_freeslot_bitmap Current value (from the default) = false From //base/allocator/partition_allocator/partition_alloc.gni:103 use_full_pdb_paths Current value (from the default) = false From //build/config/compiler/BUILD.gn:175 Override this to put full paths to PDBs in Windows PE files. This helps windbg and Windows Performance Analyzer with finding the PDBs in some local- build scenarios. This is never needed for bots or official builds. Because this puts the output directory in the DLLs/EXEs it breaks build determinism. Bugs have been reported to the windbg/WPA teams and this workaround will be removed when they are fixed. use_gcm_from_platform Current value (from the default) = false From //components/gcm_driver/config.gni:8 Use native GCM driver for all non-Android builds. On Android, the platform includes GMS which provides the GCM client. use_ghash Current value (from the default) = true From //build/config/compiler/BUILD.gn:123 Turn this on to use ghash feature of lld for faster debug link on Windows. http://blog.llvm.org/2018/01/improving-link-time-on-windows-with.html use_gio Current value (from the default) = false From //build/config/features.gni:39 use_glib Current value (from the default) = false From //build/config/ui.gni:36 use_gold Current value (from the default) = false From //build/config/compiler/compiler.gni:245 Whether to use the gold linker from binutils instead of lld or bfd. use_goma Current value (from the default) = false From //build/toolchain/goma.gni:11 Set to true to enable distributed compilation using Goma. use_goma_rust Current value (from the default) = false From //build/config/rust.gni:95 Use goma for Rust builds. Experimental. The only known problem is b/193072381, but then again, we don't expect a build speedup before much more work is done. use_goma_thin_lto Current value (from the default) = false From //build/config/compiler/compiler.gni:99 If true, use Goma for ThinLTO code generation where applicable. use_gtk Current value (from the default) = false From //build/config/linux/gtk/gtk.gni:9 Whether or not we should use libgtk. use_hashed_jni_names Current value (from the default) = false From //third_party/jni_zero/jni_zero.gni:15 Use hashed symbol names to reduce JNI symbol overhead. use_icf Current value (from the default) = false From //build/config/compiler/BUILD.gn:220 Set to true to use icf, Identical Code Folding. icf=all is broken in older golds, see https://sourceware.org/bugzilla/show_bug.cgi?id=17704 chromeos binutils has been patched with the fix, so always use icf there. The bug only affects x86 and x64, so we can still use ICF when targeting other architectures. lld doesn't have the bug. use_internal_autofill_patterns Current value (from the default) = false From //components/autofill/core/browser/BUILD.gn:32 Normally, only branded builds use Google-internal sets of parsing patterns. Setting the variable 'use_internal_autofill_patterns' in args.gn overrides this default. use_internal_isolated_origins Current value (from the default) = false From //components/site_isolation/BUILD.gn:21 Normally, only Google Chrome Android and some Fuchsia WebEngine builds will use a Google-internal list of isolated origins defined below. If other Fuchsia embedders are added, the associated logic may need to be updated. See crbug.com/1179087. You can set the variable 'use_internal_isolated_origins' to true to use this Google-internal list of isolated origins even in a developer build. Setting this variable explicitly to true will cause your build to fail if the internal file is missing. use_jacoco_coverage Current value (from the default) = false From //build/config/coverage/coverage.gni:27 Enables JaCoCo Java code coverage. use_jank_tracker_for_experiments Current value (from the default) = false From //ui/latency/BUILD.gn:9 use_javascript_coverage Current value (from the default) = false From //build/config/coverage/coverage.gni:39 Enables TypeScript/JavaScript code coverage. use_kerberos Current value (from the default) = true From //net/features.gni:21 Enable Kerberos authentication. It is disabled by default on iOS, Fuchsia and Chromecast, at least for now. This feature needs configuration (krb5.conf and so on). TODO(fuchsia): Enable kerberos on Fuchsia when it's implemented there. use_layout_plugin Current value (from the default) = true From //third_party/blink/renderer/core/BUILD.gn:100 Set to true to enable the clang layout plugin that help you to follow the layout-related restrictions during compilation. use_libfuzzer Current value (from the default) = false From //build/config/sanitizers/sanitizers.gni:69 Compile for fuzzing with LLVM LibFuzzer. See http://www.chromium.org/developers/testing/libfuzzer use_libgav1_parser Current value (from the default) = true From //third_party/libgav1/options.gni:9 use_libinput Current value (from the default) = false From //build/config/chromeos/args.gni:37 Determines if we're willing to link against libinput use_libjpeg_turbo Current value (from the default) = true From //third_party/libjpeg.gni:11 Uses libjpeg_turbo as the jpeg implementation. Has no effect if use_system_libjpeg is set. use_libpci Current value (from the default) = false From //third_party/angle/BUILD.gn:31 Use the PCI lib to collect GPU information on Linux. use_lld Current value (from the default) = true From //build/config/compiler/compiler.gni:38 Set to true to use lld, the LLVM linker. In late bring-up on macOS (see docs/mac_lld.md). Tentatively used on iOS. The default linker everywhere else. use_locally_built_instrumented_libraries Current value (from the default) = false From //build/config/sanitizers/sanitizers.gni:44 Use dynamic libraries instrumented by one of the sanitizers instead of the standard system libraries. Set this flag to build the libraries from source. use_low_quality_image_interpolation Current value (from the default) = false From //third_party/blink/renderer/config.gni:43 If true, defaults image interpolation to low quality. use_ml_inliner Current value (from the default) = false From //build/config/compiler/compiler.gni:140 Set to true to enable using the ML inliner in LLVM. This currently only enables the ML inliner when targeting Android. Currently the ML inliner is only supported on linux hosts use_mpris Current value (from the default) = false From //components/system_media_controls/linux/buildflags/buildflags.gni:11 Enables Chromium implementation of the MPRIS D-Bus interface for controlling media playback. See ../README.md for details. use_nss_certs Current value (from the default) = false From //crypto/features.gni:9 True if NSS is used for certificate handling. use_official_enterprise_connectors_api_keys Current value (from the default) = false From //chrome/browser/BUILD.gn:71 You can set the variable 'use_official_enterprise_connectors_api_keys' to true to use the Google-internal file containing official API keys for enterprise connector partners even in a developer build. Setting this variable explicitly to true will cause your build to fail if the internal file is missing. Note that official builds always behave as if the variable was explicitly set to true, i.e. they always use official keys, and will fail to build if the internal file is missing. use_official_google_api_keys Current value (from the default) = "" From //google_apis/BUILD.gn:29 Set the variable 'use_official_google_api_keys' to true to use the Google-internal file containing official API keys even in a developer build. Setting this variable explicitly to true will cause the build to fail if the internal file is missing. Set the variable to false to not use the internal file, even for Chrome-branded builds or when it exists in your checkout. Leave it set to "" to have the variable implicitly set to true for Chrome-branded builds or if //src/google_apis/internal/google_chrome_api_keys.h is present and false otherwise. This does not apply to iOS builds, which use different mechanisms and always evaluate to use_official_google_api_keys=false. See https://crbug.com/1183709. use_ozone Current value (from the default) = false From //build/config/ozone.gni:12 Indicates if Ozone is enabled. Ozone is a low-level library layer for Linux that does not require X11. use_pangocairo Current value (from the default) = false From //build/config/linux/pangocairo/pangocairo.gni:9 use_partition_alloc Current value (from the default) = true From //base/allocator/partition_allocator/partition_alloc.gni:58 Whether PartitionAlloc should be available for use or not. true makes PartitionAlloc linked to the executable or shared library and makes it available for use. It doesn't mean that the default allocator is PartitionAlloc, which is governed by |use_partition_alloc_as_malloc|. N.B. generally, embedders should look at this GN arg and at the corresponding buildflag to determine whether to interact with PA source at all (pulling the component in via GN, including headers, etc.). There is nothing stopping a lazy embedder from ignoring this and unconditionally using PA, but such a setup is inadvisable. In Chromium, this is set true, except: 1. On Cronet bots, because Cronet doesn't use PartitionAlloc at all, and doesn't wish to incur the library size increase (crbug.com/674570). 2. On NaCl (through this declaration), where PartitionAlloc doesn't build at all. use_partition_alloc_as_malloc Current value (from the default) = false From //base/allocator/partition_allocator/partition_alloc.gni:85 PartitionAlloc-Everywhere (PA-E). Causes allocator_shim.cc to route calls to PartitionAlloc, rather than some other platform allocator. use_perfetto_client_library Current value (from the default) = true From //build_overrides/build.gni:42 use_perfetto_trace_processor Current value (from the default) = true From //build_overrides/build.gni:65 Use Perfetto's trace processor for converting protobuf-encoded traces to the legacy JSON format in base::TraceLog. use_platform_icu_alternatives Current value (from the default) = false From //url/features.gni:10 Enables the use of ICU alternatives in lieu of ICU for the target toolchain. The flag is used for Cronet to reduce the size of the Cronet binary. use_profi Current value (from the default) = false From //build/config/compiler/BUILD.gn:184 Enable Profi algorithm. Profi can infer block and edge counts. https://clang.llvm.org/docs/UsersManual.html#using-sampling-profilers TODO(crbug.com/1375958i:) Possibly enable this for Android too. use_pulseaudio Current value (from the default) = false From //media/media_options.gni:188 Enables runtime selection of PulseAudio library. use_qt Current value (from the default) = false From //ui/qt/qt.gni:12 TODO(https://crbug.com/1424435): Allow QT in MSAN builds once QT is added to the instrumented libraries. use_qt6 Current value (from the default) = false From //ui/qt/qt.gni:22 use_real_dbus_clients Current value (from the default) = false From //chromeos/dbus/config/use_real_dbus_clients.gni:9 Instantiate real D-Bus clients instead of fakes. use_relative_vtables_abi Current value (from the default) = false From //build/config/compiler/compiler.gni:155 Use offsets rather than pointers in vtables in order to reduce the number of relocations. This is safe to enable only when all C++ code is built with the flag set to the same value. use_remoteexec Current value (from the default) = false From //build/toolchain/rbe.gni:14 Set to true to enable remote compilation using reclient. use_remoteexec_links Current value (from the default) = false From //build/toolchain/rbe.gni:17 Set to true to enable remote linking using reclient. use_rtti Current value (from the default) = false From //build/config/compiler/BUILD.gn:82 Build with C++ RTTI enabled. Chromium builds without RTTI by default, but some sanitizers are known to require it, like CFI diagnostics and UBsan variants. use_sanitizer_configs_without_instrumentation Current value (from the default) = false From //build/config/sanitizers/sanitizers.gni:102 When enabled, only relevant sanitizer defines are set, but compilation happens with no extra flags. This is useful when in component build enabling sanitizers only in some of the components. use_sanitizer_coverage Current value (from the default) = false From //build/config/sanitizers/sanitizers.gni:218 use_siso Current value (from the default) = false From //build/toolchain/siso.gni:6 Placeholder to allow having use_siso in args.gn files and to disable precompiled headers in siso builds. use_static_angle Current value (from the default) = false From //ui/gl/features.gni:12 Should ANGLE be linked statically? use_swiftshader_with_subzero Current value (from the default) = true From //third_party/swiftshader/src/Reactor/reactor.gni:27 Subzero produces much smaller binaries, so always use it when available, except for MSan builds which only get Reactor code instrumented with LLVM. use_sysroot Current value (from the default) = true From //build/config/sysroot.gni:23 use_system_freetype Current value (from the default) = false From //build/config/freetype/freetype.gni:13 Blink needs a recent and properly build-configured FreeType version to support OpenType variations, color emoji and avoid security bugs. By default we ship and link such a version as part of Chrome. For distributions that prefer to keep linking to the version the system, FreeType must be newer than version 2.7.1 and have color bitmap support compiled in. WARNING: System FreeType configurations other than as described WILL INTRODUCE TEXT RENDERING AND SECURITY REGRESSIONS. use_system_harfbuzz Current value (from the default) = false From //third_party/harfbuzz-ng/harfbuzz.gni:11 Blink uses a cutting-edge version of Harfbuzz; most Linux distros do not contain a new enough version of the code to work correctly. However, ChromeOS chroots (i.e, real ChromeOS builds for devices) do contain a new enough version of the library, and so this variable exists so that ChromeOS can build against the system lib and keep binary sizes smaller. use_system_lcms2 Current value (from the default) = false From //third_party/pdfium/pdfium.gni:69 Don't build against bundled lcms2. use_system_libjpeg Current value (from the default) = false From //third_party/libjpeg.gni:7 Uses system libjpeg. If true, overrides use_libjpeg_turbo. use_system_libopenjpeg2 Current value (from the default) = false From //third_party/pdfium/pdfium.gni:72 Don't build against bundled libopenjpeg2. use_system_libpng Current value (from the default) = false From //third_party/pdfium/pdfium.gni:75 Don't build against bundled libpng. use_system_libtiff Current value (from the default) = false From //third_party/pdfium/pdfium.gni:78 Don't build against bundled libtiff. use_system_zlib Current value (from the default) = false From //third_party/pdfium/pdfium.gni:81 Don't build against bundled zlib. use_text_section_splitting Current value (from the default) = false From //build/config/compiler/BUILD.gn:164 This argument is to control whether enabling text section splitting in the final binary. When enabled, the separated text sections with prefix '.text.hot', '.text.unlikely', '.text.startup' and '.text.exit' will not be merged to '.text' section. This allows us to identify the hot code section ('.text.hot') in the binary, which allows our data collection pipelines to more easily identify code that we assume to be hot/cold that doesn't turn out to be such in the field. use_thin_lto Current value (from the default) = false From //build/config/compiler/compiler.gni:92 use_typeface_fontations Current value (from the default) = true From //build/config/rust.gni:127 Enable experimental Fontations Rust font stack. use_udev Current value (from the default) = false From //build/config/features.gni:35 libudev usage. This currently only affects the content layer. use_unofficial_version_number Current value (from the default) = true From //base/version_info/use_unofficial_version_number.gni:8 use_v4l2_codec Current value (from the default) = false From //media/gpu/args.gni:15 use_v4lplugin Current value (from the default) = false From //media/gpu/args.gni:10 Indicates if V4L plugin is used. use_v8_context_snapshot Current value (from the default) = false From //tools/v8_context_snapshot/v8_context_snapshot.gni:19 use_vaapi Current value (from the default) = false From //media/gpu/args.gni:21 Indicates if VA-API-based hardware acceleration is to be used. This is typically the case on x86-based ChromeOS devices. VA-API should also be compiled by default on x11/wayland linux devices using x86/x64. use_vaapi_image_codecs Current value (from the default) = false From //media/gpu/args.gni:62 VA-API also allows decoding of images, but we don't want to use this outside of chromeos, even if video decoding is enabled. use_viz_debugger Current value (from the default) = true From //components/viz/common/debugger/viz_debugger.gni:10 Indicates if the Viz Debugger is enabled. This is disabled by default on official builds due to security and performance reasons. test crbug/1466891 Fuchia threading model does not play well with the visual debugger multithreaded submission mechanism. use_webaudio_pffft Current value (from the default) = true From //third_party/blink/renderer/config.gni:20 If true, use PFFFT for WebAudio FFT support. Do not use for Mac because the FFT library there is much faster. use_wuffs_gif_parser Current value (from the default) = true From //third_party/wuffs/config.gni:6 use_xkbcommon Current value (from the default) = false From //ui/base/ui_features.gni:10 use_zucchini Current value (from the default) = true From //chrome/installer/setup/buildflags.gni:8 Specify if the Zucchini patcher features should be included in setup.exe. See //components/zucchini for more information. using_mismatched_sample_profile Current value (from the default) = false From //build/config/compiler/compiler.gni:106 Whether we're using a sample profile collected on an architecture different than the one we're compiling for. It's currently not possible to collect AFDO profiles on anything but x86{,_64}. v8_advanced_bigint_algorithms Current value (from the default) = true From //v8/gni/v8.gni:139 Enable advanced BigInt algorithms, costing about 10-30 KB binary size depending on platform. Disabled on Android to save binary size. v8_allocation_site_tracking Current value (from the default) = true From //v8/BUILD.gn:382 Enable global allocation site tracking. v8_android_log_stdout Current value (from the default) = false From //v8/BUILD.gn:29 Print to stdout on Android. v8_annotate_torque_ir Current value (from the default) = false From //v8/BUILD.gn:307 Generate comments describing the Torque intermediate representation. v8_builtins_profiling_log_file Current value (from the default) = "default" From //v8/BUILD.gn:218 Provides the given V8 log file as an input to mksnapshot, where it can be used for profile-guided optimization of builtins. To do profile-guided optimizations of builtins: 1. Build with v8_enable_builtins_profiling = true 2. Run your chosen workload with the --turbo-profiling-output flag. For Chrome, the invocation might look like this: chrome --no-sandbox --disable-extensions --js-flags="--turbo-profiling-output=v8.builtins.pgo" "http://localhost/test-suite" 3. Run tools/builtins-pgo/get_hints.py to produce the branch hints, selecting min_count and threshold_ratio as you wish. 4. Optionally repeat steps 2-3 for additional workloads, and use tools/builtins-pgo/combine_hints.py to combine the hints produced in step 3 into a single file. 5. Build again with v8_builtins_profiling_log_file set to the file created in step 3 or 4. v8_can_use_fpu_instructions Current value (from the default) = true From //v8/BUILD.gn:247 Similar to vfp but on MIPS. v8_check_header_includes Current value (from the default) = false From //v8/BUILD.gn:262 Check that each header can be included in isolation (requires also setting the "check_v8_header_includes" gclient variable to run a specific hook). v8_code_comments Current value (from the default) = "" From //v8/BUILD.gn:119 Allow runtime-enabled code comments (with --code-comments). Enabled by default in debug builds. Sets -dV8_CODE_COMMENTS v8_context_snapshot_filename Current value (from the default) = "v8_context_snapshot.bin" From //tools/v8_context_snapshot/v8_context_snapshot.gni:43 v8_control_flow_integrity Current value (from the default) = false From //v8/BUILD.gn:318 v8_correctness_fuzzer Current value (from the default) = false From //v8/gni/v8.gni:16 Includes files needed for correctness fuzzing. v8_current_cpu Current value (from the default) = "x64" From //build/config/v8_target_cpu.gni:63 This argument is declared here so that it can be overridden in toolchains. It should never be explicitly set by the user. v8_custom_deps Current value (from the default) = "" From //v8/BUILD.gn:32 Dynamically set an additional dependency from v8/custom_deps. v8_deprecation_warnings Current value (from the default) = true From //v8/BUILD.gn:57 Enable compiler warnings when using V8_DEPRECATED apis. v8_dict_property_const_tracking Current value (from the default) = false From //v8/BUILD.gn:361 Experimental feature for tracking constness of properties in non-global dictionaries. Enabling this also always keeps prototypes in dict mode, meaning that they are not switched to fast mode. Sets -DV8_DICT_PROPERTY_CONST_TRACKING v8_disable_write_barriers Current value (from the default) = false From //v8/BUILD.gn:282 Disable write barriers when GCs are non-incremental and heap has single generation. v8_embed_script Current value (from the default) = "" From //v8/BUILD.gn:63 Embeds the given script into the snapshot. v8_embedder_string Current value (from the default) = "" From //v8/BUILD.gn:66 Allows the embedder to add a custom suffix to the version string. v8_enable_31bit_smis_on_64bit_arch Current value (from the default) = false From //v8/BUILD.gn:145 v8_enable_allocation_folding Current value (from the default) = true From //v8/BUILD.gn:376 Enable allocation folding globally (sets -dV8_ALLOCATION_FOLDING). When it's disabled, the --turbo-allocation-folding runtime flag will be ignored. v8_enable_atomic_object_field_writes Current value (from the default) = "" From //v8/BUILD.gn:166 Sets -dV8_ATOMIC_OBJECT_FIELD_WRITES and turns all field write operations into relaxed atomic operations. v8_enable_backtrace Current value (from the default) = "" From //v8/gni/v8.gni:32 Support for backtrace_symbols on linux. v8_enable_builtin_jump_table_switch Current value (from the default) = true From //v8/BUILD.gn:422 Enable jump table switch for built-in. v8_enable_builtins_optimization Current value (from the default) = "" From //v8/gni/v8.gni:39 Includes profiles to optimize builtins. v8_enable_builtins_profiling Current value (from the default) = false From //v8/BUILD.gn:184 Runs mksnapshot with --turbo-profiling. After building in this configuration, any subsequent run of d8 will output information about usage of basic blocks in builtins. v8_enable_builtins_profiling_verbose Current value (from the default) = false From //v8/BUILD.gn:190 Runs mksnapshot with --turbo-profiling-verbose. After building in this configuration, any subsequent run of d8 will output information about usage of basic blocks in builtins, including the schedule and disassembly of all used builtins. v8_enable_builtins_reordering Current value (from the default) = true From //v8/BUILD.gn:199 This build flag is used to control whether reorder builtins acoording to the call graph with C3 algorithm based builtin PGO profiling. v8_enable_cet_ibt Current value (from the default) = false From //v8/gni/v8.gni:160 Emit CET IBT landing pad instructions in JIT generated code (experimental). v8_enable_cet_shadow_stack Current value (from the default) = false From //v8/gni/v8.gni:157 Change code emission and runtime features to be CET shadow-stack compliant (incomplete and experimental). v8_enable_concurrent_marking Current value (from the default) = true From //v8/BUILD.gn:170 Controls the default value of v8_enable_concurrent_marking_state. See the default setting code below. v8_enable_conservative_stack_scanning Current value (from the default) = false From //v8/gni/v8.gni:100 Scan the call stack conservatively during garbage collection. v8_enable_continuation_preserved_embedder_data Current value (from the default) = true From //v8/BUILD.gn:372 Allow embedder data to be saved on continuations. Used to support TaskAttribution and `scheduler.yield()`. The flag enables disabling the feature, to test this data's overhead. v8_enable_debug_code Current value (from the default) = "" From //v8/BUILD.gn:124 Allow runtime-enabled debug code (with --debug-code). Enabled by default in debug builds. Sets -dV8_ENABLE_DEBUG_CODE v8_enable_debugging_features Current value (from the default) = true From //v8/BUILD.gn:36 Turns on all V8 debug features. Enables running V8 in a pseudo debug mode within a release Chrome. v8_enable_direct_handle Current value (from the default) = "" From //v8/gni/v8.gni:103 Use direct pointers in internal (direct) handles. v8_enable_direct_local Current value (from the default) = false From //v8/gni/v8.gni:106 Use direct pointers in local handles. v8_enable_disassembler Current value (from the default) = "" From //v8/BUILD.gn:69 Sets -dENABLE_DISASSEMBLER. v8_enable_etw_stack_walking Current value (from the default) = true From //v8/BUILD.gn:45 Sets -DV8_ENABLE_ETW_STACK_WALKING. Enables ETW Stack Walking v8_enable_extensible_ro_snapshot Current value (from the default) = true From //v8/BUILD.gn:428 Whether custom embedder snapshots may extend (= allocate new objects in) ReadOnlySpace. v8_enable_external_code_space Current value (from the default) = "" From //v8/BUILD.gn:230 Enable support for external code range relative to the pointer compression cage. Sets -dV8_EXTERNAL_CODE_SPACE v8_enable_fast_mksnapshot Current value (from the default) = false From //v8/BUILD.gn:104 Enable fast mksnapshot runs. v8_enable_fast_torque Current value (from the default) = "" From //v8/BUILD.gn:107 Optimize code for Torque executable, even during a debug build. v8_enable_future Current value (from the default) = false From //v8/BUILD.gn:39 Sets -DV8_ENABLE_FUTURE. v8_enable_gdbjit Current value = false From //.gn:36 Overridden from the default = false From //v8/BUILD.gn:255 v8_enable_google_benchmark Current value (from the default) = false From //v8/gni/v8.gni:111 v8_enable_handle_zapping Current value (from the default) = true From //v8/BUILD.gn:98 Sets -dENABLE_HANDLE_ZAPPING. v8_enable_heap_snapshot_verify Current value (from the default) = "" From //v8/BUILD.gn:379 Enable runtime verification of heap snapshots produced for devtools. v8_enable_hugepage Current value (from the default) = false From //v8/BUILD.gn:84 Sets -dENABLE_HUGEPAGE v8_enable_i18n_support Current value (from the default) = true From //v8/gni/v8.gni:43 Enable ECMAScript Internationalization API. Enabling this feature will add a dependency on the ICU library. v8_enable_ignition_dispatch_counting Current value (from the default) = false From //v8/BUILD.gn:179 Sets -dV8_IGNITION_DISPATCH_COUNTING. Enables counting frequencies of bytecode dispatches. After building in this configuration, subsequent runs of d8 can output frequencies for each pair of (current, next) bytecode instructions executed if you specify --trace-ignition-dispatches-output-file, or can generate a JS object with those frequencies if you run with --expose-ignition-statistics and call the extension function getIgnitionDispatchCounters(). v8_enable_javascript_promise_hooks Current value (from the default) = false From //v8/BUILD.gn:367 Allow for JS promise hooks (instead of just C++). v8_enable_lazy_source_positions Current value (from the default) = true From //v8/BUILD.gn:269 Enable lazy source positions by default. v8_enable_lite_mode Current value (from the default) = false From //v8/gni/v8.gni:70 Lite mode disables a number of performance optimizations to reduce memory at the cost of performance. Sets -DV8_LITE_MODE. v8_enable_local_off_stack_check Current value (from the default) = false From //v8/gni/v8.gni:109 Check for off-stack allocated local handles. v8_enable_maglev Current value (from the default) = "" From //v8/gni/v8.gni:78 Enable the Maglev compiler. Sets -dV8_ENABLE_MAGLEV v8_enable_maglev_graph_printer Current value (from the default) = false From //v8/BUILD.gn:415 Enable Maglev's graph printer. Sets -DV8_ENABLE_MAGLEV_GRAPH_PRINTER. v8_enable_map_packing Current value (from the default) = false From //v8/BUILD.gn:364 Enable map packing & unpacking (sets -dV8_MAP_PACKING). v8_enable_object_print Current value (from the default) = "" From //v8/BUILD.gn:148 Sets -dOBJECT_PRINT. v8_enable_pointer_compression Current value (from the default) = "" From //v8/BUILD.gn:143 Enable pointer compression (sets -dV8_COMPRESS_POINTERS). v8_enable_pointer_compression_8gb Current value (from the default) = "" From //v8/BUILD.gn:392 Enables pointer compression for 8GB heaps. Sets -DV8_COMPRESS_POINTERS_8GB. v8_enable_pointer_compression_shared_cage Current value (from the default) = "" From //v8/BUILD.gn:144 v8_enable_precise_zone_stats Current value (from the default) = false From //v8/BUILD.gn:347 Experimental feature for collecting per-class zone memory stats. Requires use_rtti = true v8_enable_private_mapping_fork_optimization Current value (from the default) = false From //v8/BUILD.gn:95 Sets -dV8_ENABLE_PRIVATE_MAPPING_FORK_OPTIMIZATION. This flag speeds up the performance of fork/execve on Linux systems for embedders which use it (like Node.js). It works by marking the pages that V8 allocates as MADV_DONTFORK. Without MADV_DONTFORK, the Linux kernel spends a long time manipulating page mappings on fork and exec which the child process doesn't generally need to access. See v8:7381 for more details. v8_enable_regexp_interpreter_threaded_dispatch Current value (from the default) = true From //v8/BUILD.gn:294 Use token threaded dispatch for the regular expression interpreter. Use switch-based dispatch if this is false v8_enable_runtime_call_stats Current value (from the default) = true From //v8/gni/v8.gni:94 v8_enable_sandbox Current value (from the default) = "" From //v8/BUILD.gn:338 Enable the experimental V8 sandbox. Sets -DV8_ENABLE_SANDBOX. v8_enable_shared_ro_heap Current value (from the default) = "" From //v8/BUILD.gn:266 Enable sharing read-only space across isolates. Sets -DV8_SHARED_RO_HEAP. v8_enable_short_builtin_calls Current value (from the default) = "" From //v8/BUILD.gn:225 Enable short builtins call instruction sequences by un-embedding builtins. Sets -dV8_SHORT_BUILTIN_CALLS v8_enable_single_generation Current value (from the default) = "" From //v8/BUILD.gn:290 Redirect allocation in young generation so that there will be only one single generation. v8_enable_slow_dchecks Current value (from the default) = false From //v8/BUILD.gn:101 Enable slow dchecks. v8_enable_slow_tracing Current value (from the default) = true From //v8/BUILD.gn:419 Enable slow tracing, e.g., tracing on every instruction or Turbofan node. Sets -DV8_ENABLE_SLOW_TRACING. v8_enable_snapshot_code_comments Current value (from the default) = false From //v8/BUILD.gn:114 Enable code comments for builtins in the snapshot (impacts performance). This also enables v8_code_comments. v8_enable_snapshot_compression Current value (from the default) = false From //v8/BUILD.gn:311 v8_enable_snapshot_native_code_counters Current value (from the default) = "" From //v8/BUILD.gn:130 Enable native counters from the snapshot (impacts performance, sets -dV8_SNAPSHOT_NATIVE_CODE_COUNTERS). This option will generate extra code in the snapshot to increment counters, as per the --native-code-counters flag. v8_enable_sparkplug Current value (from the default) = "" From //v8/BUILD.gn:411 Enable Sparkplug Sets -DV8_ENABLE_SPARKPLUG. v8_enable_static_roots Current value (from the default) = "" From //v8/BUILD.gn:133 Use pre-generated static root pointer values from static-roots.h. v8_enable_static_roots_generation Current value (from the default) = false From //v8/BUILD.gn:137 Mode used by gen-static-roots.py to have a heap layout which is identical to when v8_enable_static_roots is enabled. v8_enable_swiss_name_dictionary Current value (from the default) = false From //v8/BUILD.gn:351 Experimental feature that uses SwissNameDictionary instead of NameDictionary as the backing store for all dictionary mode objects. v8_enable_system_instrumentation Current value (from the default) = false From //v8/BUILD.gn:42 Sets -DENABLE_SYSTEM_INSTRUMENTATION. Enables OS-dependent event tracing v8_enable_test_features Current value (from the default) = "" From //v8/BUILD.gn:221 Enables various testing features. v8_enable_third_party_heap Current value (from the default) = false From //v8/BUILD.gn:272 Enable third party HEAP library v8_enable_trace_baseline_exec Current value (from the default) = false From //v8/BUILD.gn:159 v8_enable_trace_feedback_updates Current value (from the default) = false From //v8/BUILD.gn:162 Sets -dV8_TRACE_FEEDBACK_UPDATES. v8_enable_trace_ignition Current value (from the default) = false From //v8/BUILD.gn:158 v8_enable_trace_maps Current value (from the default) = "" From //v8/BUILD.gn:151 Sets -dV8_TRACE_MAPS. v8_enable_trace_unoptimized Current value (from the default) = "" From //v8/BUILD.gn:157 Sets -dV8_TRACE_UNOPTIMIZED. v8_enable_turbofan Current value (from the default) = "" From //v8/gni/v8.gni:74 Enable the Turbofan compiler. Sets -dV8_ENABLE_TURBOFAN. v8_enable_unconditional_write_barriers Current value (from the default) = false From //v8/BUILD.gn:286 Ensure that write barriers are always used. Useful for debugging purposes. v8_enable_v8_checks Current value (from the default) = "" From //v8/BUILD.gn:154 Sets -dV8_ENABLE_CHECKS. v8_enable_verify_csa Current value (from the default) = false From //v8/BUILD.gn:140 Enable code-generation-time checking of types in the CodeStubAssembler. v8_enable_verify_heap Current value (from the default) = "" From //v8/BUILD.gn:51 Sets -DVERIFY_HEAP. v8_enable_verify_predictable Current value (from the default) = false From //v8/BUILD.gn:54 Sets -DVERIFY_PREDICTABLE v8_enable_vtunejit Current value (from the default) = false From //v8/BUILD.gn:78 Sets -dENABLE_VTUNE_JIT_INTERFACE. v8_enable_vtunetracemark Current value (from the default) = false From //v8/BUILD.gn:81 Sets -dENABLE_VTUNE_TRACEMARK. v8_enable_wasm_gdb_remote_debugging Current value (from the default) = false From //v8/gni/v8.gni:65 Enable WebAssembly debugging via GDB-remote protocol. v8_enable_wasm_simd256_revec Current value (from the default) = false From //v8/gni/v8.gni:88 Enable 256-bit long vector re-vectorization pass in WASM compilation pipeline. v8_enable_webassembly Current value (from the default) = "" From //v8/gni/v8.gni:85 Include support for WebAssembly. If disabled, the 'WebAssembly' global will not be available, and embedder APIs to generate WebAssembly modules will fail. Also, asm.js will not be translated to WebAssembly and will be executed as standard JavaScript instead. Sets -dV8_ENABLE_WEBASSEMBLY. v8_enable_zone_compression Current value (from the default) = "" From //v8/BUILD.gn:334 Enable V8 zone compression experimental feature. Sets -DV8_COMPRESS_ZONES. v8_etw_guid Current value (from the default) = "" From //v8/BUILD.gn:48 Sets the GUID for the ETW provider v8_expose_memory_corruption_api Current value (from the default) = false From //v8/BUILD.gn:343 Expose the memory corruption API to JavaScript. Useful for testing the sandbox. WARNING This will expose builtins that (by design) cause memory corruption. Sets -DV8_EXPOSE_MEMORY_CORRUPTION_API v8_expose_public_symbols Current value (from the default) = "" From //v8/gni/v8.gni:53 Expose public symbols for native modules of Node.js and Electron. Default is false. v8_expose_symbols Current value (from the default) = false From //v8/gni/v8.gni:56 Deprecated for v8_expose_public_symbols. v8_fuzzilli Current value (from the default) = false From //v8/gni/v8.gni:97 Add fuzzilli fuzzer support. v8_gcmole Current value (from the default) = false From //v8/gni/v8.gni:26 Indicate if gcmole was fetched as a hook to make it available on swarming. v8_generate_external_defines_header Current value (from the default) = false From //v8/BUILD.gn:355 If enabled then macro definitions that are used in externally visible header files are placed in a separate header file v8-gn.h. v8_has_valgrind Current value (from the default) = false From //v8/gni/v8.gni:23 Indicate if valgrind was fetched as a custom deps to make it available on swarming. v8_icu_path Current value (from the default) = "//third_party/icu" From //v8/gni/v8.gni:150 Location of icu. v8_imminent_deprecation_warnings Current value = false From //.gn:37 Overridden from the default = true From //v8/BUILD.gn:60 Enable compiler warnings when using V8_DEPRECATE_SOON apis. v8_is_on_release_branch Current value (from the default) = false From //v8/gni/release_branch_toggle.gni:9 v8_jitless Current value (from the default) = false From //v8/BUILD.gn:407 Enable jitless mode, including compile-time optimizations. Note that even when this is set to 'false', one can run V8 in jitless mode at runtime by passing the `--jitless` flag; but then you miss out on compile-time optimizations. iOS (non-simulator) does not have executable pages for 3rd party applications yet so disable jit. v8_log_builtins_block_count_input Current value (from the default) = "" From //v8/BUILD.gn:195 This build flag is used to input a builtin pgo file containing raw execution counts (as opposed to branch hints), which are embedded into the `--trace-turbo` .json file from `mksnapshot`. v8_monolithic Current value (from the default) = false From //v8/gni/v8.gni:49 Enable monolithic static library for embedders. v8_multi_arch_build Current value (from the default) = false From //v8/gni/v8.gni:19 Adds additional compile target for building multiple architectures at once. v8_no_inline Current value (from the default) = false From //v8/BUILD.gn:241 Switches off inlining in V8. v8_optimized_debug Current value (from the default) = true From //v8/gni/v8.gni:29 Turns on compiler optimizations in V8 in Debug build. v8_os_page_size Current value (from the default) = "0" From //v8/BUILD.gn:244 Override OS page size when generating snapshot v8_postmortem_support Current value (from the default) = false From //v8/BUILD.gn:235 With post mortem support enabled, metadata is embedded into libv8 that describes various parameters of the VM for use by debuggers. See tools/gen-postmortem-metadata.py for details. v8_promise_internal_field_count Current value (from the default) = 0 From //v8/BUILD.gn:72 Sets the number of internal fields on promise objects. v8_scriptormodule_legacy_lifetime Current value (from the default) = false From //v8/BUILD.gn:388 TODO(cbruni, v8:12302): Remove once API is migrated Enable legacy mode for ScriptOrModule's lifetime. By default it's a temporary object, if enabled it will be kept alive by the parent Script. This is only used by nodejs. v8_shortcut_strings_in_minor_ms Current value (from the default) = false From //v8/BUILD.gn:424 v8_snapshot_toolchain Current value (from the default) = "" From //v8/gni/snapshot_toolchain.gni:34 The v8 snapshot needs to be built by code that is compiled with a toolchain that matches the bit-width of the target CPU, but runs on the host. v8_static_library Current value (from the default) = false From //v8/gni/v8.gni:46 Use static libraries instead of source_sets. v8_symbol_level Current value (from the default) = 2 From //v8/gni/v8.gni:62 Override global symbol level setting for v8. v8_target_cpu Current value (from the default) = "" From //build/config/v8_target_cpu.gni:33 This arg is used when we want to tell the JIT-generating v8 code that we want to have it generate for an architecture that is different than the architecture that v8 will actually run on; we then run the code under an emulator. For example, we might run v8 on x86, but generate arm code and run that under emulation. This arg is defined here rather than in the v8 project because we want some of the common architecture-specific args (like arm_float_abi or mips_arch_variant) to be set to their defaults either if the current_cpu applies *or* if the v8_current_cpu applies. As described below, you can also specify the v8_target_cpu to use indirectly by specifying a `custom_toolchain` that contains v8_$cpu in the name after the normal toolchain. For example, `gn gen --args="custom_toolchain=...:clang_x64_v8_arm64"` is equivalent to setting --args=`v8_target_cpu="arm64"`. Setting `custom_toolchain` is more verbose but makes the toolchain that is (effectively) being used explicit. v8_target_cpu can only be used to target one architecture in a build, so if you wish to build multiple copies of v8 that are targeting different architectures, you will need to do something more complicated involving multiple toolchains along the lines of custom_toolchain, above. v8_third_party_heap_files Current value (from the default) = [] From //v8/BUILD.gn:278 Source code used by third party heap v8_third_party_heap_libs Current value (from the default) = [] From //v8/BUILD.gn:275 Libaries used by third party heap v8_typed_array_max_size_in_heap Current value (from the default) = 64 From //v8/BUILD.gn:253 Controls the threshold for on-heap/off-heap Typed Arrays. v8_use_external_startup_data Current value (from the default) = "" From //v8/gni/v8.gni:36 Use external files for startup data blobs: the JS builtins sources and the start snapshot. v8_use_libm_trig_functions Current value (from the default) = true From //v8/gni/v8.gni:142 TODO: macros for determining endian type are clang specific. v8_use_mips_abi_hardfloat Current value (from the default) = true From //v8/BUILD.gn:250 Similar to the ARM hard float ABI but on MIPS. v8_use_perfetto Current value (from the default) = false From //v8/gni/v8.gni:59 Implement tracing using Perfetto (https://perfetto.dev). v8_use_siphash Current value (from the default) = false From //v8/BUILD.gn:238 Use Siphash as added protection against hash flooding attacks. v8_use_zlib Current value (from the default) = true From //v8/BUILD.gn:396 Compile V8 using zlib as dependency. Sets -DV8_USE_ZLIB v8_value_deserializer_hard_fail Current value (from the default) = false From //v8/BUILD.gn:399 Make ValueDeserializer crash if the data to deserialize is invalid. v8_verify_builtins_compatibility Current value (from the default) = false From //v8/BUILD.gn:297 Enforce equality of builtins hashes from compatible architectures. v8_verify_deterministic_mksnapshot Current value (from the default) = false From //v8/BUILD.gn:300 Check mksnapshot determinism by running it multiple times. v8_verify_torque_generation_invariance Current value (from the default) = false From //v8/BUILD.gn:304 Enable additional targets necessary for verification of torque file generation v8_win64_unwinding_info Current value (from the default) = true From //v8/BUILD.gn:110 Enable the registration of unwinding info for Windows x64 and ARM64. v8_zlib_path Current value (from the default) = "//third_party/zlib" From //v8/gni/v8.gni:153 Location of zlib. visual_studio_path Current value (from the default) = "" From //build/config/win/visual_studio_version.gni:9 Path to Visual Studio. If empty, the default is used which is to use the automatic toolchain in depot_tools. If set, you must also set the visual_studio_version, wdk_path and windows_sdk_version. visual_studio_version Current value (from the default) = "" From //build/config/win/visual_studio_version.gni:12 Version of Visual Studio pointed to by the visual_studio_path. vma_vulkan_headers_dir Current value (from the default) = "//third_party/vulkan-deps/vulkan-headers/src" From //third_party/vulkan_memory_allocator/BUILD.gn:8 wdk_path Current value (from the default) = "" From //build/config/win/visual_studio_version.gni:16 Directory of the Windows driver kit. If visual_studio_path is empty, this will be auto-filled. widevine_root Current value (from the default) = "." From //third_party/widevine/cdm/widevine.gni:63 Relative root directory to //third_party/widevine/cdm for CDM files. Can be overridden if the CDM files are located in other places. win_console_app Current value (from the default) = false From //build/config/win/console_app.gni:12 If true, builds as a console app (rather than a windowed app), which allows logging to be printed to the user. This will cause a terminal window to pop up when the executable is not run from the command line, so should only be used for development. Only has an effect on Windows builds. win_enable_cfg_guards Current value (from the default) = false From //build/config/win/control_flow_guard.gni:10 Set this to true to enable generation of CFG indirect call dispatch guards. win_linker_timing Current value (from the default) = false From //build/config/win/BUILD.gn:22 Turn this on to have the linker output extra timing information. win_toolchain_data_x64 Current value (from the default) = { include_flags_I = "\"/I../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/Windows Kits/10/Include/10.0.22621.0/um\" \"/I../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/Windows Kits/10/Include/10.0.22621.0/shared\" \"/I../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/Windows Kits/10/Include/10.0.22621.0/winrt\" \"/I../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/Windows Kits/10/Include/10.0.22621.0/ucrt\" /I../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/VC/Tools/MSVC/14.38.33130/include /I../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/VC/Tools/MSVC/14.38.33130/atlmfc/include" include_flags_I_list = ["/I../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/Windows Kits/10/Include/10.0.22621.0/um", "/I../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/Windows Kits/10/Include/10.0.22621.0/shared", "/I../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/Windows Kits/10/Include/10.0.22621.0/winrt", "/I../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/Windows Kits/10/Include/10.0.22621.0/ucrt", "/I../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/VC/Tools/MSVC/14.38.33130/include", "/I../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/VC/Tools/MSVC/14.38.33130/atlmfc/include"] include_flags_imsvc = "/winsysroot../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1" include_flags_imsvc_list = ["/winsysroot../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1"] libpath_flags = "-libpath:../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/VC/Tools/MSVC/14.38.33130/lib/x64 \"-libpath:../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/Windows Kits/10/Lib/10.0.22621.0/um/x64\" \"-libpath:../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/Windows Kits/10/Lib/10.0.22621.0/ucrt/x64\" -libpath:../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/VC/Tools/MSVC/14.38.33130/atlmfc/lib/x64" libpath_flags_list = ["-libpath:../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/VC/Tools/MSVC/14.38.33130/lib/x64", "-libpath:../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/Windows Kits/10/Lib/10.0.22621.0/um/x64", "-libpath:../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/Windows Kits/10/Lib/10.0.22621.0/ucrt/x64", "-libpath:../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/VC/Tools/MSVC/14.38.33130/atlmfc/lib/x64"] libpath_lldlink_flags = "/winsysroot:../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1" libpath_lldlink_flags_list = ["/winsysroot:../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1"] paths = "/home/alex/chromium/src/third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/sys64:/home/alex/chromium/src/third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/sys32:/home/alex/chromium/src/third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/sysarm64:/usr/bin:/home/alex/chromium/src/third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/Windows Kits/10/bin/10.0.22621.0/x64:/home/alex/chromium/src/third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/VC/Tools/MSVC/14.38.33130/bin/HostX64/x64:/home/alex/.cargo/bin:/home/alex/.nvm/versions/node/v16.20.2/bin:/home/alex/.local/bin:/home/alex/bin:/home/alex/depot_tools:/home/alex/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/snap/bin" vc_bin_dir = "/home/alex/chromium/src/third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/VC/Tools/MSVC/14.38.33130/bin/HostX64/x64" } From //build/toolchain/win/win_toolchain_data.gni:21 win_toolchain_data_x86 Current value (from the default) = { include_flags_I = "\"/I../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/Windows Kits/10/Include/10.0.22621.0/um\" \"/I../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/Windows Kits/10/Include/10.0.22621.0/shared\" \"/I../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/Windows Kits/10/Include/10.0.22621.0/winrt\" \"/I../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/Windows Kits/10/Include/10.0.22621.0/ucrt\" /I../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/VC/Tools/MSVC/14.38.33130/include /I../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/VC/Tools/MSVC/14.38.33130/atlmfc/include" include_flags_I_list = ["/I../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/Windows Kits/10/Include/10.0.22621.0/um", "/I../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/Windows Kits/10/Include/10.0.22621.0/shared", "/I../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/Windows Kits/10/Include/10.0.22621.0/winrt", "/I../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/Windows Kits/10/Include/10.0.22621.0/ucrt", "/I../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/VC/Tools/MSVC/14.38.33130/include", "/I../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/VC/Tools/MSVC/14.38.33130/atlmfc/include"] include_flags_imsvc = "/winsysroot../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1" include_flags_imsvc_list = ["/winsysroot../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1"] libpath_flags = "-libpath:../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/VC/Tools/MSVC/14.38.33130/lib/x86 \"-libpath:../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/Windows Kits/10/Lib/10.0.22621.0/um/x86\" \"-libpath:../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/Windows Kits/10/Lib/10.0.22621.0/ucrt/x86\" -libpath:../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/VC/Tools/MSVC/14.38.33130/atlmfc/lib/x86" libpath_flags_list = ["-libpath:../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/VC/Tools/MSVC/14.38.33130/lib/x86", "-libpath:../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/Windows Kits/10/Lib/10.0.22621.0/um/x86", "-libpath:../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/Windows Kits/10/Lib/10.0.22621.0/ucrt/x86", "-libpath:../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/VC/Tools/MSVC/14.38.33130/atlmfc/lib/x86"] libpath_lldlink_flags = "/winsysroot:../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1" libpath_lldlink_flags_list = ["/winsysroot:../../third_party/depot_tools/win_toolchain/vs_files/cacabf52f1"] paths = "/home/alex/chromium/src/third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/sys64:/home/alex/chromium/src/third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/sys32:/home/alex/chromium/src/third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/sysarm64:/usr/bin:/home/alex/chromium/src/third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/Windows Kits/10/bin/10.0.22621.0/x64:/home/alex/chromium/src/third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/VC/Tools/MSVC/14.38.33130/bin/HostX64/x86:/home/alex/chromium/src/third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/VC/Tools/MSVC/14.38.33130/bin/HostX64/x64:/home/alex/.cargo/bin:/home/alex/.nvm/versions/node/v16.20.2/bin:/home/alex/.local/bin:/home/alex/bin:/home/alex/depot_tools:/home/alex/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/snap/bin" vc_bin_dir = "/home/alex/chromium/src/third_party/depot_tools/win_toolchain/vs_files/cacabf52f1/VC/Tools/MSVC/14.38.33130/bin/HostX64/x86" } From //build/toolchain/win/win_toolchain_data.gni:9 windows_sdk_path Current value (from the default) = "C:\Program Files (x86)\Windows Kits\10" From //build/config/win/visual_studio_version.gni:21 Full path to the Windows SDK, not including a backslash at the end. This value is the default location, override if you have a different installation location. windows_sdk_version Current value (from the default) = "" From //build/config/win/visual_studio_version.gni:24 Version of the Windows SDK pointed to by the windows_sdk_path. zlib_symbols_visible Current value (from the default) = false From //third_party/zlib/BUILD.gn:11 Expose zlib's symbols, used by Node.js to provide zlib APIs for its native modules.