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February 12, 2019 18:25
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action_pool_depth | |
Current value (from the default) = -1 | |
From //build/toolchain/BUILD.gn:10 | |
Pool for non goma tasks. | |
aec_untrusted_delay_for_testing | |
Current value (from the default) = false | |
From //third_party/webrtc/modules/audio_processing/BUILD.gn:18 | |
Disables the usual mode where we trust the reported system delay | |
values the AEC receives. The corresponding define is set appropriately | |
in the code, but it can be force-enabled here for testing. | |
allow_critical_memory_pressure_handling_in_foreground | |
Current value (from the default) = false | |
From //content/common/features.gni:14 | |
Whether to perform critical memory pressure handling when in foreground (if | |
false, critical memory pressure is treated like moderate pressure in foreground). | |
alternate_cdm_storage_id_key | |
Current value (from the default) = "" | |
From //media/media_options.gni:168 | |
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) = "stable" | |
From //chrome/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:49 | |
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) = false | |
From //third_party/angle/gni/angle.gni:35 | |
angle_enable_d3d11 | |
Current value (from the default) = true | |
From //third_party/angle/gni/angle.gni:59 | |
angle_enable_d3d9 | |
Current value (from the default) = true | |
From //third_party/angle/gni/angle.gni:58 | |
angle_enable_essl | |
Current value (from the default) = true | |
From //third_party/angle/gni/angle.gni:66 | |
angle_enable_gl | |
Current value (from the default) = true | |
From //third_party/angle/gni/angle.gni:60 | |
angle_enable_gl_null | |
Current value (from the default) = true | |
From //third_party/angle/gni/angle.gni:72 | |
angle_enable_glsl | |
Current value (from the default) = true | |
From //third_party/angle/gni/angle.gni:67 | |
angle_enable_hlsl | |
Current value (from the default) = true | |
From //third_party/angle/gni/angle.gni:73 | |
angle_enable_null | |
Current value (from the default) = true | |
From //third_party/angle/gni/angle.gni:65 | |
angle_enable_trace | |
Current value (from the default) = false | |
From //third_party/angle/gni/angle.gni:74 | |
angle_enable_vulkan | |
Current value (from the default) = true | |
From //third_party/angle/gni/angle.gni:63 | |
angle_enable_vulkan_gpu_trace_events | |
Current value (from the default) = false | |
From //third_party/angle/gni/angle.gni:82 | |
Enable Vulkan GPU trace event capability | |
angle_enable_vulkan_validation_layers | |
Current value (from the default) = true | |
From //third_party/angle/gni/angle.gni:78 | |
angle_force_thread_safety | |
Current value (from the default) = false | |
From //third_party/angle/gni/angle.gni:68 | |
angle_libs_suffix | |
Current value (from the default) = "" | |
From //third_party/angle/gni/angle.gni:54 | |
angle_link_glx | |
Current value (from the default) = false | |
From //third_party/angle/BUILD.gn:22 | |
Link in system libGL, to work with apitrace. See doc/DebuggingTips.md. | |
angle_shared_libvulkan | |
Current value (from the default) = false | |
From //third_party/angle/gni/angle.gni:53 | |
apm_debug_dump | |
Current value (from the default) = false | |
From //third_party/webrtc/webrtc.gni:97 | |
Selects whether debug dumps for the audio processing module | |
should be generated. | |
asan_globals | |
Current value (from the default) = true | |
From //build/config/sanitizers/sanitizers.gni:149 | |
Detect overflow/underflow for global objects. | |
Mac: http://crbug.com/352073 | |
audio_processing_in_audio_service_supported | |
Current value (from the default) = true | |
From //media/webrtc/audio_processing.gni:3 | |
Note: the audio service must be sandboxed for us to use the APM there. | |
auto_profile_path | |
Current value (from the default) = "" | |
From //build/config/compiler/BUILD.gn:93 | |
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. | |
binutils_path | |
Current value (from the default) = "../../third_party/binutils/Linux_x64/Release/bin" | |
From //build/config/compiler/BUILD.gn:58 | |
blink_animation_use_time_delta | |
Current value (from the default) = false | |
From //third_party/blink/renderer/core/core.gni:132 | |
Use base::TimeDelta to represent time in renderer/core/animations. See | |
http://crbug.com/737867 | |
blink_gc_plugin | |
Current value (from the default) = true | |
From //third_party/blink/renderer/BUILD.gn:17 | |
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:21 | |
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:26 | |
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_symbol_level | |
Current value (from the default) = -1 | |
From //third_party/blink/renderer/config.gni:32 | |
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 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. | |
build_angle_deqp_tests | |
Current value (from the default) = false | |
From //third_party/angle/src/tests/BUILD.gn:12 | |
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:13 | |
build_contextual_search | |
Current value (from the default) = false | |
From //components/contextual_search/features.gni:6 | |
build_display_configuration | |
Current value (from the default) = false | |
From //ui/display/display.gni:7 | |
Build Chrome OS display configuration code. | |
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_sfntly_samples | |
Current value (from the default) = false | |
From //third_party/sfntly/BUILD.gn:9 | |
Flip to true to build sfntly sample programs. | |
build_with_mozilla | |
Current value (from the default) = false | |
From //third_party/webrtc/webrtc.gni:115 | |
Enable to use the Mozilla internal settings. | |
cc_wrapper | |
Current value (from the default) = "" | |
From //build/toolchain/cc_wrapper.gni:36 | |
Set to "ccache", "icecc" or "distcc". Probably doesn't work on windows. | |
chrome_pgo_phase | |
Current value (from the default) = 0 | |
From //build/config/compiler/pgo/pgo.gni:13 | |
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. | |
TODO(sebmarchand): Add support for the PGU (update) phase. | |
chromecast_branding | |
Current value (from the default) = "public" | |
From //build/config/chromecast_build.gni:15 | |
chromecast_branding is used to include or exclude Google-branded components. | |
Set it to "public" for a Chromium build. | |
clang_base_path | |
Current value (from the default) = "//third_party/llvm-build/Release+Asserts" | |
From //build/config/clang/clang.gni:14 | |
clang_format_svn_revision | |
Current value (from the default) = "346566" | |
From //buildtools/deps_revisions.gni:8 | |
The svn revisions that belong to the git hashes in DEPS. Used to cause full | |
rebuilds on libc++ rolls. | |
clang_sample_profile_path | |
Current value (from the default) = "" | |
From //build/config/compiler/BUILD.gn:108 | |
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:12 | |
Indicates if the build should use the Chrome-specific plugins for enforcing | |
coding guidelines, etc. Only used when compiling with Clang. | |
clang_use_default_sample_profile | |
Current value (from the default) = false | |
From //build/config/compiler/BUILD.gn:116 | |
Some configurations have default sample profiles. If this is true and | |
clang_sample_profile_path is empty, we'll fall back to the default. | |
We currently only have default profiles for Chromium in-tree, so we disable | |
this by default for all downstream projects, since these profiles are likely | |
nonsensical for said projects. | |
clang_version | |
Current value (from the default) = "8.0.0" | |
From //build/toolchain/toolchain.gni:49 | |
Clang compiler version. Clang files are placed at version-dependent paths. | |
cleaner_branding_path | |
Current value (from the default) = "//chrome/chrome_cleaner/constants/CLEANER_BRANDING" | |
From //chrome/chrome_cleaner/constants/args.gni:9 | |
closure_compile | |
Current value (from the default) = false | |
From //ui/webui/webui_features.gni:14 | |
Enable closure type-checking for Chrome's web technology-based UI. This | |
enables the webui_closure_compile target which does a no-op without this | |
flag enabled. Requires Java. | |
com_init_check_hook_disabled | |
Current value (from the default) = false | |
From //base/BUILD.gn:48 | |
Set to true to disable COM init check hooks. | |
compiler_timing | |
Current value (from the default) = false | |
From //build/config/compiler/BUILD.gn:120 | |
Turn this on to have the compiler output extra timing information. | |
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:19 | |
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_shell_product_name | |
Current value (from the default) = "Content Shell" | |
From //content/shell/BUILD.gn:28 | |
content_shell_version | |
Current value (from the default) = "99.77.34.5" | |
From //content/shell/BUILD.gn:29 | |
coverage_instrumentation_input_file | |
Current value (from the default) = "" | |
From //build/config/coverage/coverage.gni:22 | |
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'. | |
crashpad_dependencies | |
Current value = "chromium" | |
From //.gn:69 | |
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_use_boringssl_for_http_transport_socket | |
Current value (from the default) = false | |
From //third_party/crashpad/crashpad/util/net/tls.gni:21 | |
TODO(scottmg): https://crbug.com/crashpad/266 fuchsia:DX-690: BoringSSL | |
was removed from the Fuchsia SDK. Re-enable it when we have a way to acquire | |
a BoringSSL lib again. | |
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:144 | |
Allows the path to a custom target toolchain to be injected as a single | |
argument, and set as the default toolchain. | |
dawn_always_assert | |
Current value (from the default) = false | |
From //third_party/dawn/scripts/dawn_features.gni:17 | |
Enable Dawn's ASSERTs even in release builds | |
dawn_enable_d3d12 | |
Current value (from the default) = true | |
From //third_party/dawn/scripts/dawn_features.gni:20 | |
Enables the compilation of Dawn's D3D12 backend | |
dawn_enable_metal | |
Current value (from the default) = false | |
From //third_party/dawn/scripts/dawn_features.gni:23 | |
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:27 | |
Enables the compilation of Dawn's Null backend | |
(required for unittests, obviously non-conformant) | |
dawn_enable_opengl | |
Current value (from the default) = false | |
From //third_party/dawn/scripts/dawn_features.gni:31 | |
Enables the compilation of Dawn's OpenGL backend | |
(best effort, non-conformant) | |
dawn_enable_vulkan | |
Current value (from the default) = true | |
From //third_party/dawn/scripts/dawn_features.gni:34 | |
Enables the compilation of Dawn's Vulkan backend | |
dcheck_always_on | |
Current value (from the default) = false | |
From //build/config/dcheck_always_on.gni:14 | |
Set to true to enable dcheck in Release builds. | |
dcheck_is_configurable | |
Current value (from the default) = false | |
From //build/config/dcheck_always_on.gni:9 | |
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 crbug.com/596231 for details on how this is used. | |
debug_devtools | |
Current value (from the default) = false | |
From //third_party/blink/public/public_features.gni:12 | |
If debug_devtools is set to true, JavaScript files for DevTools are stored | |
as is and loaded from disk. Otherwise, a concatenated file is stored in | |
resources.pak. It is still possible to load JS files from disk by passing | |
--debug-devtools cmdline switch. | |
disable_brotli_filter | |
Current value (from the default) = false | |
From //net/features.gni:27 | |
Do not disable brotli filter by default. | |
disable_file_support | |
Current value (from the default) = false | |
From //net/features.gni:12 | |
Disables support for file URLs. File URL support requires use of icu. | |
disable_ftp_support | |
Current value (from the default) = false | |
From //net/features.gni:17 | |
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:92 | |
Helper variable for testing builds with disabled libfuzzer. | |
Not for client use. | |
enable_ac3_eac3_audio_demuxing | |
Current value (from the default) = false | |
From //media/media_options.gni:63 | |
Enables AC3/EAC3 audio demuxing. This is enabled only on Chromecast, since | |
it only provides demuxing, and is only useful for AC3/EAC3 audio | |
pass-through to HDMI sink on Chromecast. | |
enable_addtone | |
Current value (from the default) = true | |
From //chrome/common/features.gni:26 | |
Whether or not to use AddTone. | |
enable_app_list | |
Current value (from the default) = false | |
From //chrome/common/features.gni:28 | |
enable_app_shell_installer | |
Current value (from the default) = false | |
From //extensions/shell/installer/BUILD.gn:15 | |
enable_arcore | |
Current value (from the default) = false | |
From //device/vr/buildflags/buildflags.gni:51 | |
TODO(crbug.com/841389): We should eventually have a single flag for | |
enabling arcore, but we currently don't support ARCore in 64bit, and we do | |
not support all channels. This flag governs the inclusion of code that must | |
be identical across configs. | |
TODO(crbug.com/836524): once we've refactored AR code out from vr | |
directories, we can stop requiring |enable_vr| here. | |
enable_av1_decoder | |
Current value (from the default) = true | |
From //third_party/libaom/options.gni:6 | |
enable_background_contents | |
Current value (from the default) = true | |
From //chrome/common/features.gni:31 | |
Enables support for background apps. | |
enable_background_mode | |
Current value (from the default) = true | |
From //chrome/common/features.gni:32 | |
enable_basic_print_dialog | |
Current value (from the default) = true | |
From //chrome/common/features.gni:36 | |
Enable 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:10 | |
Enable basic printing support and UI. | |
enable_blink_heap_incremental_marking | |
Current value (from the default) = true | |
From //third_party/blink/renderer/platform/heap/BUILD.gn:15 | |
Build Blink with incremental marking infrastructure for Oilpan. | |
To turn on incremental marking also use | |
--enable-blink-features=HeapIncrementalMarking | |
enable_blink_heap_verification | |
Current value (from the default) = false | |
From //third_party/blink/renderer/platform/heap/BUILD.gn:18 | |
Enables heap verification. | |
enable_callgrind | |
Current value (from the default) = false | |
From //third_party/pdfium/pdfium.gni:57 | |
Enable callgrind for performance profiling | |
enable_captive_portal_detection | |
Current value (from the default) = true | |
From //chrome/common/features.gni:38 | |
enable_cbcs_encryption_scheme | |
Current value (from the default) = true | |
From //media/media_options.gni:72 | |
Enable parsing for the 'cbcs' encryption scheme added by MPEG Common | |
Encryption 3rd Edition (ISO/IEC 23001-7), published 02/15/2016. | |
enable_cdm_host_verification | |
Current value (from the default) = false | |
From //media/media_options.gni:157 | |
enable_cdm_storage_id | |
Current value (from the default) = false | |
From //media/media_options.gni:161 | |
Enable Storage ID which is used by CDMs. This is only available with chrome | |
branding, but may be overridden by other embedders. | |
enable_chinese_dictionary | |
Current value (from the default) = true | |
From //chrome/browser/extensions/api/dictionary/features.gni:4 | |
enable_cros_assistant | |
Current value (from the default) = false | |
From //chromeos/assistant/assistant.gni:6 | |
Enable assistant features. Assistant related code is compiled only when | |
true. The default assistant implementation is a stub. | |
enable_cros_libassistant | |
Current value (from the default) = false | |
From //chromeos/assistant/assistant.gni:12 | |
Enable assistant implementation based on libassistant. This requires | |
enable_cros_assistant also enabled. | |
enable_debugallocation | |
Current value (from the default) = false | |
From //base/allocator/BUILD.gn:13 | |
Provide a way to force disable debugallocation in Debug builds, | |
e.g. for profiling (it's more rare to profile Debug builds, | |
but people sometimes need to do that). | |
enable_desktop_in_product_help | |
Current value (from the default) = false | |
From //components/feature_engagement/features.gni:10 | |
In-Product Help is only available in Windows and Linux OS for | |
desktop. Other platforms such as Mac OS currently does not support | |
Views and there have been no strong feelings about CrOS. | |
enable_desktop_in_product_help = is_win || (is_linux && !is_chromeos) | |
enable_dolby_vision_demuxing | |
Current value (from the default) = false | |
From //media/media_options.gni:81 | |
Enable Dolby Vision demuxing. Enable by default for Chromecast. Actual | |
decoding must be provided by the platform. Note some Dolby Vision profiles | |
which are encoded using HEVC require |enable_hevc_demuxing| to be enabled. | |
enable_download_dictionary | |
Current value (from the default) = false | |
From //chrome/browser/extensions/api/dictionary/features.gni:2 | |
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_extensions | |
Current value (from the default) = true | |
From //extensions/buildflags/buildflags.gni:8 | |
enable_fb_share_onboarding | |
Current value (from the default) = false | |
From //chrome/common/features.gni:41 | |
Whether or not to show facebook share onboarding. | |
enable_feed_in_chrome | |
Current value (from the default) = false | |
From //components/feed/features.gni:6 | |
enable_ffmpeg_video_decoders | |
Current value (from the default) = true | |
From //media/media_options.gni:126 | |
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_file_pushing_feature | |
Current value (from the default) = true | |
From //components/file_pushing/core/features.gni:7 | |
Control whether file pushing feature is enabled. | |
enable_full_stack_frames_for_profiling | |
Current value (from the default) = false | |
From //build/config/compiler/BUILD.gn:66 | |
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_gvr_services | |
Current value (from the default) = false | |
From //device/vr/buildflags/buildflags.gni:13 | |
TODO(733935): Enable for other Android architectures too. Currently we only | |
support arm and arm64. | |
enable_hangout_services_extension | |
Current value (from the default) = false | |
From //chrome/common/features.gni:45 | |
Hangout services is an extension that adds extra features to Hangouts. | |
It is enableable separately to facilitate testing. | |
enable_hevc_demuxing | |
Current value (from the default) = false | |
From //media/media_options.gni:76 | |
Enable HEVC/H265 demuxing. Actual decoding must be provided by the | |
platform. Enable by default for Chromecast. | |
enable_hls_download | |
Current value (from the default) = true | |
From //content/common/features.gni:16 | |
enable_hls_sample_aes | |
Current value (from the default) = false | |
From //media/media_options.gni:84 | |
Enable HLS with SAMPLE-AES decryption. | |
enable_internal_app_remoting_targets | |
Current value (from the default) = false | |
From //remoting/remoting_options.gni:18 | |
Set this to enable building internal AppRemoting apps. | |
enable_ipc_fuzzer | |
Current value (from the default) = false | |
From //tools/ipc_fuzzer/ipc_fuzzer.gni:15 | |
enable_ipc_logging | |
Current value (from the default) = false | |
From //ipc/features.gni:7 | |
Enabling debug builds automatically sets enable_ipc_logging to true. | |
enable_isolated_xr_service | |
Current value (from the default) = true | |
From //device/vr/buildflags/buildflags.gni:57 | |
When enabled, host Desktop VR devices (OpenVR and Oculus) in a separate | |
process. When disabled, and Oculus/OpenVR are enabled, they are hosted | |
in the browser process. | |
enable_iterator_debugging | |
Current value (from the default) = false | |
From //build/config/BUILD.gn:39 | |
When set (the default) enables C++ iterator debugging in debug builds. | |
Iterator debugging is always off in release builds (technically, this flag | |
affects the "debug" config, which is always available but applied by | |
default only in debug builds). | |
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_linux_installer | |
Current value (from the default) = false | |
From //chrome/installer/BUILD.gn:11 | |
enable_location_source | |
Current value (from the default) = true | |
From //base/BUILD.gn:40 | |
Indicates if the Location object contains the source code information | |
(file, function, line). False means only the program counter (and currently | |
file name) is saved. | |
enable_mdns | |
Current value (from the default) = true | |
From //net/features.gni:30 | |
Multicast DNS. | |
enable_media_remoting | |
Current value (from the default) = true | |
From //media/media_options.gni:260 | |
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:266 | |
Media Remoting RPC is disabled on Android since it's unused but increases | |
the native binary size by ~70Kb. | |
enable_media_router_jscompile | |
Current value (from the default) = false | |
From //chrome/browser/resources/media_router/extension/BUILD.gn:12 | |
Determines whether JSCompiler should be used to typecheck | |
JavaScript code for the Media Router extension. | |
enable_message_center | |
Current value (from the default) = true | |
From //ui/base/ui_features.gni:15 | |
Whether the message center should be included for displaying notifications. | |
enable_metasearch | |
Current value (from the default) = true | |
From //components/omnibox/browser/features.gni:7 | |
Whether or not to use Coccoc metasearch. | |
enable_mojo_media | |
Current value (from the default) = true | |
From //media/media_options.gni:139 | |
Experiment to enable mojo media services (e.g. "renderer", "cdm", see | |
|mojo_media_services|). When enabled, selected mojo paths will be enabled in | |
the media pipeline and corresponding services will hosted in the selected | |
remote process (e.g. "utility" process, see |mojo_media_host|). | |
enable_mojo_tracing | |
Current value (from the default) = false | |
From //mojo/public/cpp/bindings/BUILD.gn:10 | |
enable_mojom_message_id_scrambling | |
Current value (from the default) = true | |
From //mojo/public/tools/bindings/mojom.gni:33 | |
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. Set to |false| to disable message ID | |
scrambling on all platforms. | |
enable_mojom_typemapping | |
Current value (from the default) = true | |
From //mojo/public/tools/bindings/mojom.gni:27 | |
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_mpeg_h_audio_demuxing | |
Current value (from the default) = false | |
From //media/media_options.gni:65 | |
enable_mse_mpeg2ts_stream_parser | |
Current value (from the default) = false | |
From //media/media_options.gni:68 | |
enable_mus | |
Current value (from the default) = false | |
From //ui/base/ui_features.gni:18 | |
Set to true to if mus (aka the window service) is enabled. | |
enable_mutex_priority_inheritance | |
Current value (from the default) = false | |
From //base/BUILD.gn:53 | |
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 = false | |
From //out/Release/args.gn:5 | |
Overridden from the default = true | |
From //components/nacl/features.gni:13 | |
enable_nacl_nonsfi | |
Current value (from the default) = true | |
From //components/nacl/features.gni:18 | |
Non-SFI is not yet supported on mipsel | |
enable_native_notifications | |
Current value (from the default) = true | |
From //chrome/common/features.gni:48 | |
Enables usage of the system-provided notification center. | |
enable_native_window_nav_buttons | |
Current value (from the default) = false | |
From //ui/views/features.gni:10 | |
Whether we should draw the minimize, maximize/restore, and close | |
buttons using the system theme. Only used on Linux. | |
enable_nocompile_tests | |
Current value (from the default) = false | |
From //build/nocompile.gni:63 | |
enable_oculus_vr | |
Current value (from the default) = false | |
From //device/vr/buildflags/buildflags.gni:20 | |
To build with Oculus support, the Oculus SDK for Windows will need to be | |
installed in third_party/libovr/src. See | |
third_party/libovr/README.chromium for details. | |
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_one_click_signin | |
Current value (from the default) = true | |
From //chrome/common/features.gni:52 | |
enable_openvr | |
Current value (from the default) = true | |
From //device/vr/buildflags/buildflags.gni:15 | |
enable_pdf | |
Current value (from the default) = true | |
From //pdf/features.gni:12 | |
enable_pin_site_feature | |
Current value (from the default) = false | |
From //components/history/core/browser/features.gni:5 | |
Control whether pin site to top feature is enabled. | |
enable_plugins | |
Current value (from the default) = true | |
From //ppapi/buildflags/buildflags.gni:10 | |
enable_precompiled_headers | |
Current value (from the default) = false | |
From //build/config/pch.gni:11 | |
Precompiled header file support is by default available, | |
but for distributed build system uses (like goma) or when | |
doing official builds. | |
enable_print_preview | |
Current value (from the default) = true | |
From //printing/buildflags/buildflags.gni:16 | |
Enable printing with print preview. It implies enable_basic_printing. | |
Note: It would be convenient to not repeat many of the same conditions in | |
enable_basic_printing below. However, GN does not allow the use of | |
enable_basic_printing within the same declare_args() block. | |
enable_profiling | |
Current value (from the default) = false | |
From //build/config/compiler/compiler.gni:38 | |
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_random_mojo_delays | |
Current value (from the default) = false | |
From //mojo/public/cpp/bindings/BUILD.gn:16 | |
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_remote_navigable_contents_view | |
Current value (from the default) = false | |
From //services/content/public/features.gni:17 | |
Determines whether or not the Content Service should support remote | |
(i.e., out-of-process) clients embedding NavigableContentsViews within their | |
UI. If this is false, only clients in the same process as the Content | |
Service may use NavigableContentsView. | |
Currently only supported on Chrome OS, where |toolkit_views| is implied and | |
the UI service (i.e. Mus) is available. | |
enable_remoting | |
Current value (from the default) = true | |
From //remoting/remoting_enable.gni:12 | |
enable_remoting_jscompile | |
Current value (from the default) = false | |
From //remoting/remoting_options.gni:15 | |
Set this to run the jscompile checks after building the webapp. | |
enable_reporting | |
Current value (from the default) = true | |
From //net/features.gni:33 | |
Reporting not used on iOS. | |
enable_resource_whitelist_generation | |
Current value (from the default) = false | |
From //build/toolchain/gcc_toolchain.gni:27 | |
enable_runtime_media_renderer_selection | |
Current value (from the default) = false | |
From //media/media_options.gni:152 | |
When enabled, this feature allows developers to use a runtime flag to | |
choose the implementation of the renderer that is used. On a build which | |
enables the mojo renderer, if --disable-mojo-renderer is passed at start-up, | |
the "default" renderer will be used instead. Both renderer implementations | |
will be linked if this feature is enabled, increasing the binary size. This | |
feature does not make sense if the mojo renderer is not enabled. | |
enable_service_discovery | |
Current value (from the default) = true | |
From //chrome/common/features.gni:54 | |
enable_session_service | |
Current value (from the default) = true | |
From //chrome/common/features.gni:58 | |
Enables use of the session service, which is enabled by default. | |
Android stores them separately on the Java side. | |
enable_simple_browser_service_in_process | |
Current value (from the default) = false | |
From //chrome/common/features.gni:64 | |
enable_simple_browser_service_out_of_process | |
Current value (from the default) = false | |
From //chrome/common/features.gni:66 | |
enable_spellchecker_encryption | |
Current value (from the default) = true | |
From //components/coccoc/spelltone/features.gni:5 | |
Control whether spellcher encryption is enabled. | |
enable_supervised_users | |
Current value (from the default) = true | |
From //chrome/common/features.gni:68 | |
enable_swiftshader | |
Current value (from the default) = true | |
From //ui/gl/BUILD.gn:15 | |
enable_test_mojo_media_client | |
Current value (from the default) = false | |
From //media/media_options.gni:144 | |
Enable the TestMojoMediaClient to be used in mojo MediaService. This is for | |
testing only and will override the default platform MojoMediaClient, if any. | |
enable_torrent | |
Current value (from the default) = true | |
From //torrent/features.gni:7 | |
Whether or not to use torrent feature. | |
enable_torrent_update | |
Current value (from the default) = true | |
From //chrome/common/features.gni:78 | |
enable_unblocker | |
Current value (from the default) = true | |
From //components/net_config/features.gni:7 | |
Whether or not to use unblock service. | |
enable_vr | |
Current value (from the default) = true | |
From //device/vr/buildflags/buildflags.gni:28 | |
enable_vulkan | |
Current value (from the default) = false | |
From //gpu/vulkan/features.gni:11 | |
Enable experimental vulkan backend. | |
enable_wayland_server | |
Current value (from the default) = false | |
From //chrome/common/features.gni:71 | |
Indicates if Wayland display server support is enabled. | |
enable_websockets | |
Current value (from the default) = true | |
From //net/features.gni:16 | |
WebSockets and socket stream code are not used on iOS and are optional in | |
cronet. | |
enable_widevine | |
Current value (from the default) = true | |
From //third_party/widevine/cdm/widevine.gni:11 | |
Enables Widevine key system support. Enabled by default in Google Chrome or | |
on Android. Can be optionally enabled in Chromium. | |
enable_wifi_display | |
Current value (from the default) = false | |
From //extensions/buildflags/buildflags.gni:12 | |
Enables Wi-Fi Display functionality | |
WARNING: This enables MPEG Transport Stream (MPEG-TS) encoding! | |
fatal_linker_warnings | |
Current value (from the default) = true | |
From //build/config/compiler/BUILD.gn:82 | |
Enable fatal linker warnings. Building Chromium with certain versions | |
of binutils can cause linker warning. | |
See: https://bugs.chromium.org/p/chromium/issues/detail?id=457359 | |
ffmpeg_branding | |
Current value (from the default) = "Chrome" | |
From //third_party/ffmpeg/ffmpeg_options.gni:35 | |
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_atomics_fallback | |
Current value (from the default) = false | |
From //third_party/ffmpeg/ffmpeg_options.gni:52 | |
Set to true to force the use of ffmpeg's stdatomic fallback code. | |
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 | |
fieldtrial_testing_like_official_build | |
Current value (from the default) = true | |
From //build/config/features.gni:43 | |
Set to true make a build that disables activation of field trial tests | |
specified in testing/variations/fieldtrial_testing_config_*.json. | |
Note: this setting is ignored if is_chrome_branded. | |
force_local_build_id | |
Current value (from the default) = false | |
From //build/config/compiler/BUILD.gn:141 | |
By default only the binaries in official builds get build IDs. | |
full_wpo_on_official | |
Current value (from the default) = false | |
From //build/config/compiler/compiler.gni:162 | |
generate_linker_map | |
Current value (from the default) = false | |
From //build/toolchain/toolchain.gni:26 | |
Used for binary size analysis. | |
generate_order_files | |
Current value (from the default) = false | |
From //build/config/chrome_build.gni:20 | |
Turn this on to generate order files. See | |
https://chromium.googlesource.com/chromium/src/+/master/docs/win_order_files.md | |
gold_path | |
Current value (from the default) = false | |
From //build/config/compiler/BUILD.gn:70 | |
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) = "C:\src\goma\goma-win64" | |
From //build/toolchain/goma.gni:19 | |
Absolute directory containing the gomacc.exe binary. | |
google_api_key | |
Current value (from the default) = "" | |
From //google_apis/BUILD.gn:46 | |
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 you are building an official build or if | |
use_official_google_api_keys has been set to trie (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:49 | |
See google_api_key. | |
google_default_client_secret | |
Current value (from the default) = "" | |
From //google_apis/BUILD.gn:52 | |
See google_api_key. | |
gtest_enable_absl_printers | |
Current value (from the default) = false | |
From //third_party/googletest/BUILD.gn:9 | |
If true, it assumes that //third_party/abseil-cpp is an available dependency. | |
has_gomacc_path | |
Current value (from the default) = false | |
From //build/toolchain/goma.gni:14 | |
This flag is for ChromeOS compiler wrapper. | |
By passing gomacc path via GOMACC_PATH environment variable, ChromeOS' | |
compiler wrapper invokes gomacc inside it. | |
has_native_accessibility | |
Current value (from the default) = true | |
From //ui/base/ui_features.gni:12 | |
Whether the platform provides a native accessibility toolkit. | |
headless_fontconfig_utils | |
Current value (from the default) = false | |
From //headless/headless.gni:10 | |
Provide bindings for font loading for headless embedders. | |
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. | |
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) = "win" | |
(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:148 | |
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_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. | |
This flag is a bit confusing. As of this writing, icu.gyp set the value to | |
0 but common.gypi sets the value to 1 for most platforms (and the 1 takes | |
precedence). | |
TODO(GYP) We'll probably need to enhance this logic to set the value to | |
true or false in similar circumstances. | |
ignore_elf32_limitations | |
Current value (from the default) = false | |
From //build_overrides/build.gni:39 | |
Android 32-bit non-component, non-clang builds cannot have symbol_level=2 | |
due to 4GiB file size limit, see https://crbug.com/648948. | |
Set this flag to true to skip the assertion. | |
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. | |
include_vr_data | |
Current value (from the default) = false | |
From //device/vr/buildflags/buildflags.gni:32 | |
Whether to include VR extras like test APKs in non-VR-specific targets | |
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) = "11.0" | |
From //build/config/ios/ios_sdk_overrides.gni:10 | |
Version of iOS that we're targeting. | |
is_asan | |
Current value (from the default) = false | |
From //build/config/sanitizers/sanitizers.gni:12 | |
Compile for Address Sanitizer to find memory bugs. | |
is_cast_audio_only | |
Current value (from the default) = false | |
From //build/config/chromecast_build.gni:18 | |
Set this true for an audio-only Chromecast build. | |
is_cast_desktop_build | |
Current value (from the default) = false | |
From //build/config/chromecast_build.gni:30 | |
True if Chromecast build is targeted for linux desktop. This type of build | |
is useful for testing and development, but currently supports only a subset | |
of Cast functionality. Though this defaults to true for x86 Linux devices, | |
this should be overriden manually for an embedded x86 build. | |
TODO(slan): Remove instances of this when x86 is a fully supported platform. | |
is_cast_using_cma_backend | |
Current value (from the default) = true | |
From //media/media_options.gni:88 | |
If true, use cast CMA backend instead of default chromium media pipeline. | |
TODO(sanfin): Remove this flag when all builds enable CMA. | |
is_cfi | |
Current value (from the default) = false | |
From //build/config/sanitizers/sanitizers.gni:54 | |
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_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_chromecast | |
Current value (from the default) = false | |
From //build/config/chromecast_build.gni:11 | |
Set this true for a Chromecast build. Chromecast builds are supported on | |
Linux and Android. | |
is_clang | |
Current value (from the default) = true | |
From //build/config/BUILDCONFIG.gn:137 | |
Set to true when compiling with the Clang compiler. | |
is_component_build | |
Current value = false | |
From //out/Release/args.gn:3 | |
Overridden from the default = false | |
From //build/config/BUILDCONFIG.gn:165 | |
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/+/master/docs/component_build.md | |
is_component_ffmpeg | |
Current value (from the default) = false | |
From //third_party/ffmpeg/ffmpeg_options.gni:42 | |
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_ct_supported | |
Current value (from the default) = true | |
From //services/network/public/cpp/features.gni:10 | |
Certificate transparency is not supported on iOS. | |
TODO(mmenke): It's actually not supported on Android, either. | |
is_debug | |
Current value = false | |
From //out/Release/args.gn:1 | |
Overridden from the default = false | |
From //build/config/BUILDCONFIG.gn:155 | |
Debug build. Enabling official builds automatically sets is_debug to false. | |
is_desktop_linux | |
Current value (from the default) = false | |
From //build/config/BUILDCONFIG.gn:134 | |
Whether we're a traditional desktop unix. | |
is_indo_branded | |
Current value (from the default) = false | |
From //build/config/chrome_build.gni:12 | |
Build for Indonesian market. | |
is_lsan | |
Current value (from the default) = false | |
From //build/config/sanitizers/sanitizers.gni:15 | |
Compile for Leak Sanitizer to find leaks. | |
is_msan | |
Current value (from the default) = false | |
From //build/config/sanitizers/sanitizers.gni:18 | |
Compile for Memory Sanitizer to find uninitialized reads. | |
is_multi_dll_chrome | |
Current value (from the default) = true | |
From //build/config/chrome_build.gni:16 | |
Break chrome.dll into multple pieces based on process type. Only available | |
on Windows. | |
is_nacl_glibc | |
Current value (from the default) = false | |
From //build/config/nacl/config.gni:9 | |
Native Client supports both Newlib and Glibc C libraries where Newlib | |
is assumed to be the default one; use this to determine whether Glibc | |
is being used instead. | |
is_official_build | |
Current value = true | |
From //out/Release/args.gn:2 | |
Overridden from the default = false | |
From //build/config/BUILDCONFIG.gn:131 | |
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. | |
is_official_chrome_cleaner_build | |
Current value (from the default) = false | |
From //chrome/chrome_cleaner/chrome_cleaner_args.gni:8 | |
If this is true, builds an official release of the Chrome Cleanup Tool | |
(requires extra Google-internal resources). | |
is_proto_quic | |
Current value (from the default) = false | |
From //net/features.gni:9 | |
If true, prune things down as needed for proto-quic build. | |
is_tsan | |
Current value (from the default) = false | |
From //build/config/sanitizers/sanitizers.gni:21 | |
Compile for Thread Sanitizer to find threading bugs. | |
is_ubsan | |
Current value (from the default) = false | |
From //build/config/sanitizers/sanitizers.gni:25 | |
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:28 | |
Halt the program if a problem is detected. | |
is_ubsan_null | |
Current value (from the default) = false | |
From //build/config/sanitizers/sanitizers.gni:31 | |
Compile for Undefined Behaviour Sanitizer's null pointer checks. | |
is_ubsan_security | |
Current value (from the default) = false | |
From //build/config/sanitizers/sanitizers.gni:84 | |
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:34 | |
Compile for Undefined Behaviour Sanitizer's vptr checks. | |
is_unsafe_developer_build | |
Current value (from the default) = false | |
From //base/BUILD.gn:45 | |
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_fastlink | |
Current value (from the default) = false | |
From //build/config/compiler/compiler.gni:60 | |
Tell VS to create a PDB that references information in .obj files rather | |
than copying it all. This should improve linker performance. mspdbcmf.exe | |
can be used to convert a fastlink pdb to a normal one. | |
jumbo_build_excluded | |
Current value (from the default) = [] | |
From //build/config/jumbo.gni:26 | |
A list of build targets to exclude from jumbo builds, for optimal | |
round trip time when frequently changing a set of cpp files. The | |
targets can be just the short name (in which case it matches any | |
target with that name), a directory prefixed with the root | |
specifier //, or a full build target label. | |
Example: | |
These would all exclude the "browser" target in a file | |
content/browser/BUILD.gn, and potentially more. | |
jumbo_build_excluded = [ "browser" ] | |
jumbo_build_excluded = [ "//content/browser" ] | |
jumbo_build_excluded = [ "//content/browser:browser" ] | |
jumbo_file_merge_limit | |
Current value (from the default) = -1 | |
From //build/config/jumbo.gni:42 | |
How many files to group on average. Smaller numbers give more | |
parallellism, higher numbers give less total CPU usage. Higher | |
numbers also give longer single-file recompilation times. | |
Recommendations: | |
Higher numbers than 100 does not reduce wall clock compile times | |
even for 4 cores or less so no reason to go higher than 100. | |
Going from 50 to 100 with a 4 core CPU saves about 3% CPU time and | |
3% wall clock time in a tree with blink, v8 and content | |
jumbofied. At the same time it increases the compile time for the | |
largest jumbo chunks by 10-20% and reduces the chance to use all | |
available CPU cores. So set the default to 50 to balance between | |
high and low-core build performance. -1 means do the default which | |
varies depending on whether goma is enabled. | |
lastchange_path | |
Current value (from the default) = "//build/util/LASTCHANGE" | |
From //chrome/chrome_cleaner/constants/args.gni:11 | |
libcxx_svn_revision | |
Current value (from the default) = "344254" | |
From //buildtools/deps_revisions.gni:9 | |
libcxxabi_svn_revision | |
Current value (from the default) = "344215" | |
From //buildtools/deps_revisions.gni:10 | |
libunwind_svn_revision | |
Current value (from the default) = "343990" | |
From //buildtools/deps_revisions.gni:11 | |
libyuv_disable_jpeg | |
Current value (from the default) = false | |
From //third_party/libyuv/libyuv.gni:15 | |
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:19 | |
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_gflags | |
Current value (from the default) = true | |
From //third_party/libyuv/BUILD.gn:14 | |
Set to false to disable building with gflags. | |
libyuv_use_mmi | |
Current value (from the default) = false | |
From //third_party/libyuv/libyuv.gni:22 | |
libyuv_use_msa | |
Current value (from the default) = false | |
From //third_party/libyuv/libyuv.gni:20 | |
libyuv_use_neon | |
Current value (from the default) = false | |
From //third_party/libyuv/libyuv.gni:17 | |
link_pulseaudio | |
Current value (from the default) = false | |
From //media/media_options.gni:40 | |
Allows distributions to link pulseaudio directly (DT_NEEDED) instead of | |
using dlopen. This helps with automated detection of ABI mismatches and | |
prevents silent errors. | |
linux_use_bundled_binutils | |
Current value (from the default) = false | |
From //build/config/compiler/BUILD.gn:56 | |
llvm_force_head_revision | |
Current value (from the default) = false | |
From //build/toolchain/toolchain.gni:18 | |
If this is set to true, or if LLVM_FORCE_HEAD_REVISION is set to 1 | |
in the environment, 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 LLVM_FORCE_HEAD_REVISION in the | |
environment when `gclient runhooks` is run as well. | |
mac_sdk_min | |
Current value (from the default) = "10.12" | |
From //build/config/mac/mac_sdk_overrides.gni:12 | |
media_use_ffmpeg | |
Current value (from the default) = true | |
From //media/media_options.gni:45 | |
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:49 | |
Enable usage of libvpx within the media library. Used for software based | |
decoding of VP9 and VP8A type content. | |
mips_use_mmi | |
Current value (from the default) = false | |
From //build/config/mips.gni:13 | |
MIPS MultiMedia Instruction compilation flag. | |
modularize_ar | |
Current value (from the default) = false | |
From //device/vr/buildflags/buildflags.gni:64 | |
modularize_vr | |
Current value (from the default) = true | |
From //device/vr/buildflags/buildflags.gni:63 | |
Whether to create a VR/AR module when building bundles. If false, VR/AR code | |
will become part of the base module. | |
mojo_media_host | |
Current value (from the default) = "gpu" | |
From //media/media_options.gni:253 | |
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: | |
- "none": Do not use mojo media service. | |
- "browser": Use mojo media service hosted in the browser process. | |
- "gpu": Use mojo media service hosted in the gpu process. | |
- "utility": Use mojo media service hosted in the utility process. | |
mojo_media_services | |
Current value (from the default) = ["video_decoder", "cdm"] | |
From //media/media_options.gni:240 | |
A list of mojo media services that should be used in the media pipeline. | |
Must not be empty if |enable_mojo_media| is true. | |
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. | |
mojom_message_id_salt_path | |
Current value (from the default) = "//chrome/VERSION" | |
From //mojo/public/tools/bindings/mojom.gni:80 | |
The path to a file whose contents can be used as the basis for a message | |
ID scrambling salt. | |
mojom_message_id_salt_suffix_path | |
Current value (from the default) = "" | |
From //mojo/public/tools/bindings/mojom.gni:90 | |
monolithic_binaries | |
Current value (from the default) = false | |
From //third_party/perfetto/BUILD.gn:34 | |
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. | |
msan_track_origins | |
Current value (from the default) = 2 | |
From //build/config/sanitizers/sanitizers.gni:39 | |
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_absolute_paths | |
Current value (from the default) = false | |
From //build/toolchain/toolchain.gni:30 | |
Use absolute file paths in the compiler diagnostics and __FILE__ macro | |
if needed. | |
msvs_xtree_patched | |
Current value (from the default) = false | |
From //build/config/compiler/BUILD.gn:76 | |
Whether the VS xtree header has been patched to disable warning 4702. If | |
it has, then we don't need to disable 4702 (unreachable code warning). | |
The patch is preapplied to the internal toolchain and hence all bots. | |
ndk_supports_nativewindow | |
Current value (from the default) = false | |
From //third_party/angle/gni/angle.gni:44 | |
ndk_supports_vulkan | |
Current value (from the default) = false | |
From //third_party/angle/gni/angle.gni:43 | |
optimize_for_fuzzing | |
Current value (from the default) = false | |
From //build/config/sanitizers/sanitizers.gni:96 | |
Optimize for coverage guided fuzzing (balance between speed and number of | |
branches). Can be also used to remove non-determinism and other issues. | |
optimize_webui | |
Current value (from the default) = true | |
From //ui/webui/webui_features.gni:9 | |
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). | |
ozone_auto_platforms | |
Current value (from the default) = false | |
From //ui/ozone/ozone.gni:10 | |
Select platforms automatically. Turn this off for manual control. | |
ozone_platform | |
Current value (from the default) = "" | |
From //ui/ozone/ozone.gni:16 | |
The platform that will used at runtime by default. This can be overridden | |
with the command line flag --ozone-platform=<platform>. | |
ozone_platform_cast | |
Current value (from the default) = false | |
From //ui/ozone/ozone.gni:19 | |
Compile the 'cast' platform. | |
ozone_platform_gbm | |
Current value (from the default) = false | |
From //ui/ozone/ozone.gni:22 | |
Compile the 'gbm' platform. | |
ozone_platform_headless | |
Current value (from the default) = false | |
From //ui/ozone/ozone.gni:25 | |
Compile the 'headless' platform. | |
ozone_platform_magma | |
Current value (from the default) = false | |
From //ui/ozone/ozone.gni:40 | |
Compile the 'magma' platform. | |
ozone_platform_scenic | |
Current value (from the default) = false | |
From //ui/ozone/ozone.gni:28 | |
Compile the 'scenic' platform. | |
ozone_platform_wayland | |
Current value (from the default) = false | |
From //ui/ozone/ozone.gni:34 | |
Compile the 'wayland' platform. | |
ozone_platform_windows | |
Current value (from the default) = false | |
From //ui/ozone/ozone.gni:37 | |
Compile the 'windows' platform. | |
ozone_platform_x11 | |
Current value (from the default) = false | |
From //ui/ozone/ozone.gni:31 | |
Compile the 'x11' platform. | |
package_arcore | |
Current value (from the default) = false | |
From //device/vr/buildflags/buildflags.gni:40 | |
TODO(crbug.com/837999, crbug.com/841389): We currently only support arm and | |
we are limiting to canary and dev until binary size issues are resolved. | |
TODO(crbug.com/836524): once we've refactored AR code out from vr | |
directories, we can stop requiring |enable_vr| here. | |
pdf_bundle_freetype | |
Current value (from the default) = false | |
From //third_party/pdfium/pdfium.gni:16 | |
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:19 | |
Generate logging messages for click events that reach PDFium | |
pdf_enable_v8 | |
Current value (from the default) = true | |
From //third_party/pdfium/pdfium.gni:22 | |
Build PDFium either with or without v8 support. | |
pdf_enable_xfa | |
Current value (from the default) = false | |
From //third_party/pdfium/pdfium.gni:25 | |
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:28 | |
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:31 | |
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:34 | |
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:37 | |
If XFA, also support png codec. Ignored if not XFA. | |
pdf_is_complete_lib | |
Current value (from the default) = false | |
From //third_party/pdfium/pdfium.gni:54 | |
Build a complete static library | |
pdf_is_standalone | |
Current value (from the default) = false | |
From //third_party/pdfium/pdfium.gni:51 | |
Build PDFium standalone | |
pdf_use_skia | |
Current value (from the default) = false | |
From //third_party/pdfium/pdfium.gni:41 | |
Build PDFium against Skia (experimental) rather than AGG. Use Skia to draw | |
everything. | |
pdf_use_skia_paths | |
Current value (from the default) = false | |
From //third_party/pdfium/pdfium.gni:45 | |
Build PDFium against Skia (experimental) rather than AGG. Use Skia to draw | |
paths. | |
pdf_use_win32_gdi | |
Current value (from the default) = true | |
From //third_party/pdfium/pdfium.gni:48 | |
Build PDFium with or without experimental win32 GDI APIs. | |
perfetto_build_with_android | |
Current value (from the default) = false | |
From //third_party/perfetto/gn/perfetto.gni:48 | |
The Android blueprint file generator overrides this to true. | |
pgo_build | |
Current value (from the default) = false | |
From //chrome/common/features.gni:74 | |
Indicates if the build is using PGO. | |
pgo_data_path | |
Current value (from the default) = "" | |
From //build/config/compiler/pgo/pgo.gni:16 | |
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. | |
proprietary_codecs | |
Current value (from the default) = true | |
From //build/config/features.gni:26 | |
Enables proprietary codecs and demuxers; e.g. H264, AAC, MP3, and MP4. | |
We always build Google Chrome and Chromecast with proprietary codecs. | |
remove_webcore_debug_symbols | |
Current value (from the default) = false | |
From //third_party/blink/renderer/config.gni:21 | |
TODO: send a PSA out to tell people to switch to blink_symbol_level | |
and remove this. | |
If true, doesn't compile debug symbols into webcore reducing the | |
size of the binary and increasing the speed of gdb. | |
reporter_branding_path | |
Current value (from the default) = "//chrome/chrome_cleaner/constants/REPORTER_BRANDING" | |
From //chrome/chrome_cleaner/constants/args.gni:8 | |
ro_segment_workaround_for_valgrind | |
Current value (from the default) = false | |
From //build/config/compiler/BUILD.gn:125 | |
Set to true to pass --no-rosegment to lld. This is a workaround | |
for a KI issue in Valgrind, | |
https://bugs.kde.org/show_bug.cgi?id=384727 | |
root_extra_deps | |
Current value (from the default) = [] | |
From //BUILD.gn:39 | |
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:166 | |
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_examples | |
Current value (from the default) = true | |
From //third_party/webrtc/webrtc.gni:103 | |
Set this to false to skip building examples. | |
rtc_build_json | |
Current value (from the default) = true | |
From //third_party/webrtc/webrtc.gni:196 | |
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:209 | |
rtc_build_libsrtp | |
Current value (from the default) = true | |
From //third_party/webrtc/webrtc.gni:197 | |
rtc_build_libvpx | |
Current value (from the default) = true | |
From //third_party/webrtc/webrtc.gni:198 | |
rtc_build_opus | |
Current value (from the default) = true | |
From //third_party/webrtc/webrtc.gni:200 | |
rtc_build_ssl | |
Current value (from the default) = true | |
From //third_party/webrtc/webrtc.gni:201 | |
rtc_build_tools | |
Current value (from the default) = true | |
From //third_party/webrtc/webrtc.gni:106 | |
Set this to false to skip building tools. | |
rtc_build_usrsctp | |
Current value (from the default) = true | |
From //third_party/webrtc/webrtc.gni:202 | |
rtc_build_with_neon | |
Current value (from the default) = false | |
From //third_party/webrtc/webrtc.gni:147 | |
rtc_builtin_ssl_root_certificates | |
Current value (from the default) = true | |
From //third_party/webrtc/webrtc.gni:65 | |
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_enable_android_aaudio | |
Current value (from the default) = false | |
From //third_party/webrtc/webrtc.gni:119 | |
Enable use of Android AAudio which requires Android SDK 26 or above and | |
NDK r16 or above. | |
rtc_enable_android_opensl | |
Current value (from the default) = false | |
From //third_party/webrtc/webrtc.gni:122 | |
TODO(henrika): can this flag be removed? | |
rtc_enable_bwe_test_logging | |
Current value (from the default) = false | |
From //third_party/webrtc/webrtc.gni:100 | |
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:93 | |
Enable when an external authentication mechanism is used for performing | |
packet authentication for RTP packets instead of libsrtp. | |
rtc_enable_libevent | |
Current value (from the default) = false | |
From //third_party/webrtc/webrtc.gni:208 | |
rtc_enable_protobuf | |
Current value (from the default) = true | |
From //third_party/webrtc/webrtc.gni:190 | |
Enables the use of protocol buffers for debug recordings. | |
rtc_enable_sctp | |
Current value (from the default) = true | |
From //third_party/webrtc/webrtc.gni:193 | |
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:41 | |
Setting this to true will make RTC_EXPORT (see rtc_base/system/rtc_export.h) | |
expand to code that will manage symbols visibility. | |
rtc_exclude_field_trial_default | |
Current value (from the default) = true | |
From //third_party/webrtc/webrtc.gni:51 | |
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:60 | |
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_include_ilbc | |
Current value = false | |
From //.gn:65 | |
Overridden from the default = true | |
From //third_party/webrtc/webrtc.gni:68 | |
Include the iLBC audio codec? | |
rtc_include_internal_audio_device | |
Current value (from the default) = true | |
From //third_party/webrtc/webrtc.gni:227 | |
Chromium uses its own IO handling, so the internal ADM is only built for | |
standalone WebRTC. | |
https://trac.coccoc.com/coccoc/ticket/251230. | |
We need this to avoid crashes while using native APIs. | |
Maybe we revert a bit later after done with dummy audio module implementations. | |
rtc_include_opus | |
Current value (from the default) = true | |
From //third_party/webrtc/webrtc.gni:71 | |
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:220 | |
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:230 | |
Include tests in standalone checkout. | |
rtc_jsoncpp_root | |
Current value (from the default) = "//third_party/jsoncpp/source/include" | |
From //third_party/webrtc/webrtc.gni:82 | |
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:199 | |
rtc_link_task_queue_impl | |
Current value = false | |
From //.gn:60 | |
Overridden from the default = true | |
From //third_party/webrtc/webrtc.gni:139 | |
Links a default implementation of task queues to targets | |
that depend on the target rtc_task_queue. Set to false to | |
use an external implementation. | |
rtc_opus_support_120ms_ptime | |
Current value (from the default) = true | |
From //third_party/webrtc/webrtc.gni:75 | |
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:78 | |
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:89 | |
Selects fixed-point code where possible. | |
rtc_sanitize_coverage | |
Current value (from the default) = "" | |
From //third_party/webrtc/webrtc.gni:134 | |
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:86 | |
Used to specify an external OpenSSL include path when not compiling the | |
library that comes with WebRTC (i.e. rtc_build_ssl == 0). | |
rtc_use_builtin_sw_codecs | |
Current value (from the default) = true | |
From //third_party/webrtc/webrtc.gni:169 | |
Disable this to build without support for built-in software codecs. | |
rtc_use_dummy_audio_file_devices | |
Current value (from the default) = false | |
From //third_party/webrtc/webrtc.gni:160 | |
By default, use normal platform audio support or dummy audio, but don't | |
use file-based audio playout and record. | |
rtc_use_gtk | |
Current value (from the default) = false | |
From //third_party/webrtc/webrtc.gni:217 | |
Build sources requiring GTK. NOTICE: This is not present in Chrome OS | |
build environments, even if available for Chromium builds. | |
rtc_use_h264 | |
Current value (from the default) = true | |
From //third_party/webrtc/webrtc.gni:156 | |
Enable this to build OpenH264 encoder/FFmpeg decoder. This is supported on | |
all platforms except Android and iOS. Because FFmpeg can be built | |
with/without H.264 support, |ffmpeg_branding| has to separately be set to a | |
value that includes H.264, for example "Chrome". If FFmpeg is built without | |
H.264, compilation succeeds but |H264DecoderImpl| fails to initialize. | |
CHECK THE OPENH264, FFMPEG AND H.264 LICENSES/PATENTS BEFORE BUILDING. | |
http://www.openh264.org, https://www.ffmpeg.org/ | |
rtc_use_lto | |
Current value (from the default) = false | |
From //third_party/webrtc/webrtc.gni:127 | |
Link-Time Optimizations. | |
Executes code generation at link-time instead of compile-time. | |
https://gcc.gnu.org/wiki/LinkTimeOptimization | |
rtc_use_metal_rendering | |
Current value (from the default) = false | |
From //third_party/webrtc/webrtc.gni:178 | |
Determines whether Metal is available on iOS/macOS. | |
rtc_use_pipewire | |
Current value (from the default) = false | |
From //third_party/webrtc/webrtc.gni:112 | |
Set this to use PipeWire on the Wayland display server. | |
rtc_use_x11 | |
Current value (from the default) = false | |
From //third_party/webrtc/webrtc.gni:109 | |
Set this to false to skip building code that requires X11. | |
runtime_call_stats_count_everything | |
Current value (from the default) = false | |
From //third_party/blink/renderer/platform/BUILD.gn:210 | |
safe_browsing_mode | |
Current value (from the default) = 1 | |
From //build/config/features.gni:37 | |
sample_profile_is_accurate | |
Current value (from the default) = false | |
From //build/config/compiler/compiler.gni:96 | |
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:106 | |
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 | |
should_build_heapprofd | |
Current value (from the default) = false | |
From //third_party/perfetto/BUILD.gn:38 | |
single_module_mode_handle_verifier | |
Current value (from the default) = false | |
From //base/win/BUILD.gn:10 | |
Indicates if the handle verifier should operate in a single module mode. By | |
default a single instance gets shared by all the modules. | |
skia_whitelist_serialized_typefaces | |
Current value (from the default) = false | |
From //skia/BUILD.gn:27 | |
skip_archive_compression | |
Current value (from the default) = false | |
From //chrome/installer/mini_installer/BUILD.gn:20 | |
The Chrome archive is compressed in official builds to reduce the size of | |
the installer. By default: non-official or component builds, a build mode | |
targeting developers, do not compress so as to provide quicker build-test | |
cycles. | |
start_daemons_for_testing | |
Current value (from the default) = true | |
From //third_party/perfetto/gn/perfetto.gni:52 | |
Whether the ftrace producer and the service should be started | |
by the integration test or assumed to be running. | |
strip_absolute_paths_from_debug_symbols | |
Current value (from the default) = false | |
From //build/config/compiler/BUILD.gn:101 | |
strip_debug_info | |
Current value (from the default) = false | |
From //build/config/compiler/compiler.gni:34 | |
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. | |
support_webgl2_compute_context | |
Current value (from the default) = true | |
From //third_party/blink/renderer/config.gni:41 | |
If true, webgl2-compute context will be supported. | |
symbol_level | |
Current value (from the default) = -1 | |
From //build/config/compiler/compiler.gni:29 | |
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/BUILD.gn:13 | |
Controls the product part of the user agent calculated in sync_util.cc. | |
system_libdir | |
Current value (from the default) = "lib" | |
From //build/config/linux/pkg_config.gni:47 | |
CrOS systemroots place pkgconfig files at <systemroot>/usr/share/pkgconfig | |
and one of <systemroot>/usr/lib/pkgconfig or <systemroot>/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 = "x86" | |
From //out/Release/args.gn:4 | |
Overridden from the default = "" | |
(Internally set; try `gn help target_cpu`.) | |
target_os | |
Current value (from the default) = "" | |
(Internally set; try `gn help target_os`.) | |
target_sysroot | |
Current value (from the default) = "" | |
From //build/config/sysroot.gni:13 | |
The absolute 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:16 | |
The absolute path to directory containing linux sysroot images | |
target_winuwp_family | |
Current value (from the default) = "app" | |
From //build/config/win/BUILD.gn:40 | |
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:32 | |
possible values for target_winuwp_version: | |
"10" - Windows UWP 10 | |
"8.1" - Windows RT 8.1 | |
"8.0" - Windows RT 8.0 | |
thin_lto_enable_optimizations | |
Current value (from the default) = false | |
From //build/config/compiler/BUILD.gn:138 | |
Whether to enable ThinLTO optimizations. Turning ThinLTO optimizations on | |
can substantially increase link time and binary size, but they generally | |
also make binaries a fair bit faster. | |
TODO(gbiv): We disable optimizations by default on most platforms because | |
the space overhead is too great. We should use some mixture of profiles and | |
optimization settings to better tune the size increase. | |
toolkit_views | |
Current value (from the default) = true | |
From //build/config/ui.gni:38 | |
True means the UI is built using the "views" framework. | |
treat_warnings_as_errors | |
Current value (from the default) = true | |
From //build/config/compiler/BUILD.gn:45 | |
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:80 | |
Compile for fuzzing with AFL. | |
use_allocator | |
Current value (from the default) = "none" | |
From //build/config/allocator.gni:28 | |
Memory allocator to use. Set to "none" to use default allocator. | |
use_allocator_shim | |
Current value (from the default) = true | |
From //build/config/allocator.gni:31 | |
Causes all the allocations to be routed via allocator_shim.cc. | |
use_alsa | |
Current value (from the default) = false | |
From //media/media_options.gni:104 | |
Enables runtime selection of ALSA library for audio. | |
use_aura | |
Current value (from the default) = true | |
From //build/config/ui.gni:30 | |
Indicates if Aura is enabled. Aura is a low-level windowing library, sort | |
of a replacement for GDI or GTK. | |
use_cfi_cast | |
Current value (from the default) = false | |
From //build/config/sanitizers/sanitizers.gni:60 | |
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:69 | |
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:65 | |
Enable checks for indirect function calls via a function pointer. | |
TODO(pcc): remove this when we're ready to add these checks by default. | |
https://crbug.com/701919 | |
use_cfi_recover | |
Current value (from the default) = false | |
From //build/config/sanitizers/sanitizers.gni:73 | |
Let Control Flow Integrity continue execution instead of crashing when | |
printing diagnostics (use_cfi_diag = true). | |
use_clang_coverage | |
Current value (from the default) = false | |
From //build/config/coverage/coverage.gni:15 | |
Enable Clang's Source-based Code Coverage. | |
use_clang_diagnostics_format | |
Current value (from the default) = false | |
From //build/config/win/BUILD.gn:49 | |
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_static_analyzer | |
Current value (from the default) = false | |
From //build/toolchain/clang_static_analyzer.gni:10 | |
Uses the Clang static analysis tools during compilation. | |
use_cras | |
Current value (from the default) = false | |
From //media/media_options.gni:58 | |
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:9 | |
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:18 | |
use_custom_libcxx | |
Current value (from the default) = false | |
From //build/config/c++/c++.gni:14 | |
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_cxx11 | |
Current value (from the default) = false | |
From //build/config/compiler/BUILD.gn:104 | |
Allow projects that wish to stay on C++11 to override Chromium's default. | |
use_cxx11_on_android | |
Current value (from the default) = false | |
From //build/config/compiler/BUILD.gn:146 | |
C++11 may not be an option if Android test infrastructure is used. | |
use_dbus | |
Current value (from the default) = false | |
From //build/config/features.gni:48 | |
use_debug_fission | |
Current value (from the default) = "default" | |
From //build/config/compiler/compiler.gni:50 | |
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_drfuzz | |
Current value (from the default) = false | |
From //build/config/sanitizers/sanitizers.gni:88 | |
Compile for fuzzing with Dr. Fuzz | |
See http://www.chromium.org/developers/testing/dr-fuzz | |
use_dummy_lastchange | |
Current value (from the default) = false | |
From //build/util/lastchange.gni:9 | |
use_egl | |
Current value (from the default) = true | |
From //ui/gl/features.gni:12 | |
Should EGL support be compiled. Can be overriden to test during bring up | |
of EGL support on other platforms | |
use_evdev_gestures | |
Current value (from the default) = false | |
From //ui/events/ozone/BUILD.gn:12 | |
Support ChromeOS touchpad gestures with ozone. | |
use_external_popup_menu | |
Current value (from the default) = false | |
From //content/common/features.gni:10 | |
Whether or not to use external popup menu. | |
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) = false | |
From //build/config/compiler/BUILD.gn:129 | |
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:50 | |
use_glib | |
Current value (from the default) = false | |
From //build/config/ui.gni:33 | |
Whether we should use glib, a low level C utility library. | |
use_gnome_keyring | |
Current value (from the default) = false | |
From //components/os_crypt/features.gni:10 | |
Whether to use libgnome-keyring (deprecated by libsecret). | |
See http://crbug.com/466975 and http://crbug.com/355223. | |
use_gold | |
Current value (from the default) = false | |
From //build/config/compiler/compiler.gni:181 | |
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:9 | |
Set to true to enable distributed compilation using Goma. | |
use_icf | |
Current value (from the default) = false | |
From //build/config/compiler/BUILD.gn:162 | |
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 | |
See also https://crbug.com/663886 | |
`linux_use_bundled_binutils` is to avoid breaking Linux distros which may | |
still have a buggy gold. | |
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_incremental_wpo | |
Current value (from the default) = false | |
From //build/config/compiler/compiler.gni:64 | |
Whether or not we should turn on incremental WPO. Only affects the VS | |
Windows build. | |
use_jumbo_build | |
Current value = true | |
From //out/Release/args.gn:6 | |
Overridden from the default = false | |
From //build/config/jumbo.gni:11 | |
If true, use a jumbo build (files compiled together) to speed up | |
compilation. | |
use_kerberos | |
Current value (from the default) = true | |
From //net/features.gni:24 | |
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). On Chrome OS it is only supported on Active | |
Directory managed devices. | |
TODO(fuchsia): Enable kerberos on Fuchsia when it's implemented there. | |
use_libfuzzer | |
Current value (from the default) = false | |
From //build/config/sanitizers/sanitizers.gni:77 | |
Compile for fuzzing with LLVM LibFuzzer. | |
See http://www.chromium.org/developers/testing/libfuzzer | |
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:18 | |
Use the PCI lib to collect GPU information on Linux. | |
use_lld | |
Current value (from the default) = true | |
From //build/config/compiler/compiler.gni:172 | |
use_locally_built_instrumented_libraries | |
Current value (from the default) = false | |
From //build/config/sanitizers/sanitizers.gni:48 | |
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:35 | |
If true, defaults image interpolation to low quality. | |
use_new_tcmalloc | |
Current value (from the default) = false | |
From //build/config/allocator.gni:37 | |
Use the new tcmalloc. It's relevant only when use_allocator == "tcmalloc". | |
use_official_google_api_keys | |
Current value (from the default) = "" | |
From //google_apis/BUILD.gn:31 | |
You can set the variable 'use_official_google_api_keys' to true | |
to use the Google-internal file containing official API keys | |
for Google Chrome even in a developer build. Setting this | |
variable explicitly to true will cause your build to fail if the | |
internal file is missing. | |
The variable is documented here, but not handled in this file; | |
see //google_apis/determine_use_official_keys.gypi for the | |
implementation. | |
Set the variable to false to not use the internal file, even when | |
it exists in your checkout. | |
Leave it unset or set to "" to have the variable | |
implicitly set to true if you have | |
src/google_apis/internal/google_chrome_api_keys.h in your | |
checkout, and implicitly set to false if not. | |
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_openh264 | |
Current value (from the default) = false | |
From //third_party/openh264/openh264_args.gni:11 | |
Enable this to build OpenH264 (for encoding, not decoding). | |
CHECK THE OPENH264 LICENSE/PATENT BEFORE BUILDING, see | |
http://www.openh264.org/. | |
use_ozone | |
Current value (from the default) = false | |
From //build/config/ui.gni:26 | |
Indicates if Ozone is enabled. Ozone is a low-level library layer for Linux | |
that does not require X11. Enabling this feature disables use of glib, x11, | |
Pango, and Cairo. | |
use_partition_alloc | |
Current value (from the default) = true | |
From //build/config/allocator.gni:34 | |
Partition alloc is included by default except iOS. | |
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_prebuilt_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 download prebuilt binaries from | |
GCS. | |
use_pulseaudio | |
Current value (from the default) = false | |
From //media/media_options.gni:101 | |
Enables runtime selection of PulseAudio library. | |
use_rtti | |
Current value (from the default) = false | |
From //build/config/compiler/BUILD.gn:87 | |
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_coverage | |
Current value (from the default) = false | |
From //build/config/sanitizers/sanitizers.gni:143 | |
use_static_angle | |
Current value (from the default) = false | |
From //ui/gl/features.gni:8 | |
Whether ANGLE should be linked statically | |
False by default, enabling currently supported only on Android | |
use_swiftshader_with_subzero | |
Current value (from the default) = true | |
From //third_party/swiftshader/src/Reactor/BUILD.gn:20 | |
use_sysroot | |
Current value (from the default) = true | |
From //build/config/sysroot.gni:18 | |
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:63 | |
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_libpng | |
Current value (from the default) = false | |
From //third_party/pdfium/pdfium.gni:66 | |
Don't build against bundled libpng. | |
use_system_xcode | |
Current value (from the default) = "" | |
From //build_overrides/build.gni:46 | |
Use the system install of Xcode for tools like ibtool, libtool, etc. | |
This does not affect the compiler. When this variable is false, targets will | |
instead use a hermetic install of Xcode. [The hermetic install can be | |
obtained with gclient sync after setting the environment variable | |
FORCE_MAC_TOOLCHAIN]. | |
use_system_zlib | |
Current value (from the default) = false | |
From //third_party/pdfium/pdfium.gni:60 | |
Don't build against bundled zlib. | |
use_tcmalloc_small_but_slow | |
Current value (from the default) = false | |
From //base/allocator/BUILD.gn:16 | |
Provide a way to build tcmalloc with a low memory footprint. | |
use_thin_lto | |
Current value (from the default) = false | |
From //build/config/compiler/compiler.gni:55 | |
Enables support for ThinLTO, which links 3x-10x faster than full LTO. See | |
also http://blog.llvm.org/2016/06/thinlto-scalable-and-incremental-lto.html | |
TODO(https://crbug.com/887272): Reenable on is_android && is_official_build | |
use_udev | |
Current value (from the default) = false | |
From //build/config/features.gni:46 | |
libudev usage. This currently only affects the content layer. | |
use_unofficial_version_number | |
Current value (from the default) = false | |
From //components/version_info/BUILD.gn:11 | |
use_v4l2_codec | |
Current value (from the default) = false | |
From //media/gpu/args.gni:11 | |
Indicates if Video4Linux2 codec is used. This is used for all CrOS | |
platforms which have v4l2 hardware encoder / decoder. | |
use_v4lplugin | |
Current value (from the default) = false | |
From //media/gpu/args.gni:7 | |
Indicates if V4L plugin is used. | |
use_v8_context_snapshot | |
Current value (from the default) = true | |
From //tools/v8_context_snapshot/v8_context_snapshot.gni:18 | |
use_vaapi | |
Current value (from the default) = false | |
From //media/gpu/args.gni:15 | |
Indicates if VA-API-based hardware acceleration is to be used. This | |
is typically the case on x86-based ChromeOS devices. | |
use_viz_devtools | |
Current value (from the default) = true | |
From //components/ui_devtools/devtools.gni:8 | |
Indicates if the Viz Devtools server is enabled. This is disabled on | |
official Android and iOS builds to reduce binary size. | |
use_vr_assets_component | |
Current value (from the default) = false | |
From //chrome/browser/vr/features.gni:12 | |
Whether to register, download, etc. the VR assets component. | |
use_vs_code_analysis | |
Current value (from the default) = false | |
From //build/config/win/BUILD.gn:23 | |
Set this to true to enable static analysis through Visual Studio's | |
/analyze. This dramatically slows compiles and reports thousands of | |
warnings, so normally this is done on a build machine and only the new | |
warnings are examined. | |
use_webaudio_ffmpeg | |
Current value (from the default) = true | |
From //third_party/blink/renderer/config.gni:38 | |
If true, ffmpeg will be used for decoding audio. | |
use_xcode_clang | |
Current value (from the default) = false | |
From //build/toolchain/toolchain.gni:23 | |
Compile with Xcode version of clang instead of hermetic version shipped | |
with the build. Used on iOS to ship official builds (as they are built | |
with the version of clang shipped with Xcode). | |
use_xkbcommon | |
Current value (from the default) = false | |
From //ui/base/ui_features.gni:9 | |
Optional system library. | |
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:71 | |
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_android_log_stdout | |
Current value (from the default) = false | |
From //v8/BUILD.gn:32 | |
Print to stdout on Android. | |
v8_can_use_fpu_instructions | |
Current value (from the default) = true | |
From //v8/BUILD.gn:141 | |
Similar to vfp but on MIPS. | |
v8_check_header_includes | |
Current value (from the default) = false | |
From //v8/BUILD.gn:183 | |
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_check_microtasks_scopes_consistency | |
Current value = false | |
From //.gn:57 | |
Overridden from the default = "" | |
From //v8/BUILD.gn:167 | |
Temporary flag to allow embedders to update their microtasks scopes | |
while rolling in a new version of V8. | |
v8_code_coverage | |
Current value (from the default) = false | |
From //v8/gni/v8.gni:13 | |
Set flags for tracking code coverage. Uses gcov with gcc and sanitizer | |
coverage with clang. | |
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) = "x86" | |
From //build/config/v8_target_cpu.gni:60 | |
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:35 | |
Dynamically set an additional dependency from v8/custom_deps. | |
v8_deprecation_warnings | |
Current value (from the default) = true | |
From //v8/BUILD.gn:56 | |
Enable compiler warnings when using V8_DEPRECATED apis. | |
v8_embed_script | |
Current value (from the default) = "" | |
From //v8/BUILD.gn:62 | |
Embeds the given script into the snapshot. | |
v8_embedder_string | |
Current value (from the default) = "" | |
From //v8/BUILD.gn:65 | |
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:102 | |
v8_enable_backtrace | |
Current value (from the default) = "" | |
From //v8/gni/v8.gni:32 | |
Support for backtrace_symbols on linux. | |
v8_enable_concurrent_marking | |
Current value (from the default) = true | |
From //v8/BUILD.gn:124 | |
Sets -dV8_CONCURRENT_MARKING | |
v8_enable_debugging_features | |
Current value (from the default) = false | |
From //v8/BUILD.gn:39 | |
Turns on all V8 debug features. Enables running V8 in a pseudo debug mode | |
within a release Chrome. | |
v8_enable_disassembler | |
Current value (from the default) = "" | |
From //v8/BUILD.gn:68 | |
Sets -dENABLE_DISASSEMBLER. | |
v8_enable_embedded_builtins | |
Current value (from the default) = true | |
From //v8/BUILD.gn:90 | |
Enable embedded builtins. | |
TODO(v8:8043): Support aix. | |
v8_enable_fast_mksnapshot | |
Current value (from the default) = false | |
From //v8/BUILD.gn:86 | |
Enable fast mksnapshot runs. | |
v8_enable_future | |
Current value (from the default) = false | |
From //v8/BUILD.gn:42 | |
Sets -DV8_ENABLE_FUTURE. | |
v8_enable_gdbjit | |
Current value = false | |
From //.gn:52 | |
Overridden from the default = false | |
From //v8/BUILD.gn:162 | |
v8_enable_handle_zapping | |
Current value (from the default) = false | |
From //v8/BUILD.gn:80 | |
Sets -dENABLE_HANDLE_ZAPPING. | |
v8_enable_i18n_support | |
Current value (from the default) = true | |
From //v8/gni/v8.gni:49 | |
Enable ECMAScript Internationalization API. Enabling this feature will | |
add a dependency on the ICU library. | |
v8_enable_jitless_mode | |
Current value (from the default) = false | |
From //v8/BUILD.gn:95 | |
Build-time flag for enabling nojit mode. | |
TODO(v8:7777): Remove the build-time flag once the --jitless runtime flag | |
does everything we need. | |
v8_enable_lite_mode | |
Current value (from the default) = false | |
From //v8/BUILD.gn:47 | |
Lite mode disables a number of performance optimizations to reduce memory | |
at the cost of performance. | |
Sets --DV8_LITE_MODE. | |
v8_enable_minor_mc | |
Current value (from the default) = true | |
From //v8/BUILD.gn:178 | |
Enable minor mark compact. | |
v8_enable_object_print | |
Current value (from the default) = "" | |
From //v8/BUILD.gn:109 | |
Sets -dOBJECT_PRINT. | |
v8_enable_pointer_compression | |
Current value (from the default) = false | |
From //v8/BUILD.gn:101 | |
Enable pointer compression (sets -dV8_COMPRESS_POINTERS). | |
v8_enable_slow_dchecks | |
Current value (from the default) = false | |
From //v8/BUILD.gn:83 | |
Enable slow dchecks. | |
v8_enable_test_features | |
Current value (from the default) = "" | |
From //v8/BUILD.gn:127 | |
Enables various testing features. | |
v8_enable_trace_feedback_updates | |
Current value (from the default) = false | |
From //v8/BUILD.gn:121 | |
Sets -dV8_TRACE_FEEDBACK_UPDATES. | |
v8_enable_trace_ignition | |
Current value (from the default) = false | |
From //v8/BUILD.gn:118 | |
Sets -dV8_TRACE_IGNITION. | |
v8_enable_trace_maps | |
Current value (from the default) = "" | |
From //v8/BUILD.gn:112 | |
Sets -dV8_TRACE_MAPS. | |
v8_enable_v8_checks | |
Current value (from the default) = "" | |
From //v8/BUILD.gn:115 | |
Sets -dV8_ENABLE_CHECKS. | |
v8_enable_verify_csa | |
Current value (from the default) = false | |
From //v8/BUILD.gn:98 | |
Enable code-generation-time checking of types in the CodeStubAssembler. | |
v8_enable_verify_heap | |
Current value (from the default) = "" | |
From //v8/BUILD.gn:50 | |
Sets -DVERIFY_HEAP. | |
v8_enable_verify_predictable | |
Current value (from the default) = false | |
From //v8/BUILD.gn:53 | |
Sets -DVERIFY_PREDICTABLE | |
v8_enable_vtunejit | |
Current value (from the default) = false | |
From //v8/BUILD.gn:77 | |
Sets -dENABLE_VTUNE_JIT_INTERFACE. | |
v8_experimental_extra_library_files | |
Current value = [] | |
From //.gn:51 | |
Overridden from the default = ["//test/cctest/test-experimental-extra.js"] | |
From //v8/BUILD.gn:159 | |
v8_extra_library_files | |
Current value = ["//third_party/blink/renderer/core/streams/CommonOperations.js", "//third_party/blink/renderer/core/streams/CommonStrings.js", "//third_party/blink/renderer/core/streams/SimpleQueue.js", "//third_party/blink/renderer/core/streams/ByteLengthQueuingStrategy.js", "//third_party/blink/renderer/core/streams/CountQueuingStrategy.js", "//third_party/blink/renderer/core/streams/ReadableStream.js", "//third_party/blink/renderer/core/streams/WritableStream.js", "//third_party/blink/renderer/core/streams/TransformStream.js"] | |
From //.gn:37 | |
Overridden from the default = ["//test/cctest/test-extra.js"] | |
From //v8/BUILD.gn:153 | |
List of extra files to snapshot. They will be snapshotted in order so | |
if files export symbols used by later files, they should go first. | |
This default is used by cctests. Projects using V8 will want to override. | |
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_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_imminent_deprecation_warnings | |
Current value = false | |
From //.gn:53 | |
Overridden from the default = true | |
From //v8/BUILD.gn:59 | |
Enable compiler warnings when using V8_DEPRECATE_SOON apis. | |
v8_interpreted_regexp | |
Current value (from the default) = false | |
From //v8/BUILD.gn:106 | |
Interpreted regexp engine exists as platform-independent alternative | |
based where the regular expression is compiled to a bytecode. | |
v8_monolithic | |
Current value (from the default) = false | |
From //v8/gni/v8.gni:55 | |
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:135 | |
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:138 | |
Override OS page size when generating snapshot | |
v8_postmortem_support | |
Current value (from the default) = false | |
From //v8/BUILD.gn:132 | |
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:71 | |
Sets the number of internal fields on promise objects. | |
v8_snapshot_toolchain | |
Current value (from the default) = "" | |
From //v8/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:52 | |
Use static libraries instead of source_sets. | |
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_typed_array_max_size_in_heap | |
Current value (from the default) = 64 | |
From //v8/BUILD.gn:147 | |
Controls the threshold for on-heap/off-heap Typed Arrays. | |
v8_untrusted_code_mitigations | |
Current value (from the default) = false | |
From //v8/BUILD.gn:175 | |
v8_use_external_startup_data | |
Current value (from the default) = "" | |
From //v8/gni/v8.gni:45 | |
Use external files for startup data blobs: | |
the JS builtins sources and the start snapshot. | |
v8_use_mips_abi_hardfloat | |
Current value (from the default) = true | |
From //v8/BUILD.gn:144 | |
Similar to the ARM hard float ABI but on MIPS. | |
v8_use_multi_snapshots | |
Current value (from the default) = false | |
From //v8/gni/v8.gni:41 | |
Enable several snapshots side-by-side (e.g. default and for trusted code). | |
v8_use_snapshot | |
Current value (from the default) = true | |
From //v8/gni/v8.gni:38 | |
Enable the snapshot feature, for fast context creation. | |
http://v8project.blogspot.com/2015/09/custom-startup-snapshots.html | |
TODO(thakis): Make snapshots work in 64-bit win/cross builds, | |
https://803591 | |
version_path | |
Current value (from the default) = "//chrome/chrome_cleaner/constants/VERSION" | |
From //chrome/chrome_cleaner/constants/args.gni:10 | |
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 and wdk_path. | |
visual_studio_version | |
Current value (from the default) = "" | |
From //build/config/win/visual_studio_version.gni:13 | |
Version of Visual Studio pointed to by the visual_studio_path. | |
Currently always "2015". | |
wdk_path | |
Current value (from the default) = "" | |
From //build/config/win/visual_studio_version.gni:17 | |
Directory of the Windows driver kit. If visual_studio_path is empty, this | |
will be auto-filled. | |
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_linker_timing | |
Current value (from the default) = false | |
From //build/config/win/BUILD.gn:26 | |
Turn this on to have the linker output extra timing information. | |
windows_sdk_path | |
Current value (from the default) = "C:\Program Files (x86)\Windows Kits\10" | |
From //build/config/win/visual_studio_version.gni:22 | |
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. | |
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