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- // Copyright (c) 2012 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- #include "base/base_switches.h"
- #include "build/build_config.h"
- #include "build/chromeos_buildflags.h"
- namespace switches {
- // Delays execution of TaskPriority::BEST_EFFORT tasks until shutdown.
- const char kDisableBestEffortTasks[] = "disable-best-effort-tasks";
- // Disables the crash reporting.
- const char kDisableBreakpad[] = "disable-breakpad";
- // Comma-separated list of feature names to disable. See also kEnableFeatures.
- const char kDisableFeatures[] = "disable-features";
- // Force disabling of low-end device mode when set.
- const char kDisableLowEndDeviceMode[] = "disable-low-end-device-mode";
- // Indicates that crash reporting should be enabled. On platforms where helper
- // processes cannot access to files needed to make this decision, this flag is
- // generated internally.
- const char kEnableCrashReporter[] = "enable-crash-reporter";
- // Comma-separated list of feature names to enable. See also kDisableFeatures.
- const char kEnableFeatures[] = "enable-features";
- // Force low-end device mode when set.
- const char kEnableLowEndDeviceMode[] = "enable-low-end-device-mode";
- // Enable the use of background thread priorities for background tasks in the
- // ThreadPool even on systems where it is disabled by default, e.g. due to
- // concerns about priority inversions.
- const char kEnableBackgroundThreadPool[] = "enable-background-thread-pool";
- // Handle to the shared memory segment containing field trial state that is to
- // be shared between processes. The argument to this switch is made of 4
- // segments, separated by commas:
- // 1. The platform-specific handle id for the shared memory as a string.
- // 2. The high 64 bits of the shared memory block GUID.
- // 3. The low 64 bits of the shared memory block GUID.
- // 4. The size of the shared memory segment as a string.
- const char kFieldTrialHandle[] = "field-trial-handle";
- // This option can be used to force field trials when testing changes locally.
- // The argument is a list of name and value pairs, separated by slashes. If a
- // trial name is prefixed with an asterisk, that trial will start activated.
- // For example, the following argument defines two trials, with the second one
- // activated: "GoogleNow/Enable/*MaterialDesignNTP/Default/" This option can
- // also be used by the browser process to send the list of trials to a
- // non-browser process, using the same format. See
- // FieldTrialList::CreateTrialsFromString() in field_trial.h for details.
- const char kForceFieldTrials[] = "force-fieldtrials";
- // Generates full memory crash dump.
- const char kFullMemoryCrashReport[] = "full-memory-crash-report";
- // Logs information about all tasks posted with TaskPriority::BEST_EFFORT. Use
- // this to diagnose issues that are thought to be caused by
- // TaskPriority::BEST_EFFORT execution fences. Note: Tasks posted to a
- // non-BEST_EFFORT UpdateableSequencedTaskRunner whose priority is later lowered
- // to BEST_EFFORT are not logged.
- const char kLogBestEffortTasks[] = "log-best-effort-tasks";
- // Suppresses all error dialogs when present.
- const char kNoErrorDialogs[] = "noerrdialogs";
- // Starts the sampling based profiler for the browser process at startup. This
- // will only work if chrome has been built with the gn arg enable_profiling =
- // true. The output will go to the value of kProfilingFile.
- const char kProfilingAtStart[] = "profiling-at-start";
- // Specifies a location for profiling output. This will only work if chrome has
- // been built with the gyp variable profiling=1 or gn arg enable_profiling=true.
- //
- // {pid} if present will be replaced by the pid of the process.
- // {count} if present will be incremented each time a profile is generated
- // for this process.
- // The default is chrome-profile-{pid} for the browser and test-profile-{pid}
- // for tests.
- const char kProfilingFile[] = "profiling-file";
- // Controls whether profile data is periodically flushed to a file. Normally
- // the data gets written on exit but cases exist where chromium doesn't exit
- // cleanly (especially when using single-process). A time in seconds can be
- // specified.
- const char kProfilingFlush[] = "profiling-flush";
- // When running certain tests that spawn child processes, this switch indicates
- // to the test framework that the current process is a child process.
- const char kTestChildProcess[] = "test-child-process";
- // When running certain tests that spawn child processes, this switch indicates
- // to the test framework that the current process should not initialize ICU to
- // avoid creating any scoped handles too early in startup.
- const char kTestDoNotInitializeIcu[] = "test-do-not-initialize-icu";
- // Sends trace events from these categories to a file.
- // --trace-to-file on its own sends to default categories.
- const char kTraceToFile[] = "trace-to-file";
- // Specifies the file name for --trace-to-file. If unspecified, it will
- // go to a default file name.
- const char kTraceToFileName[] = "trace-to-file-name";
- // Gives the default maximal active V-logging level; 0 is the default.
- // Normally positive values are used for V-logging levels.
- const char kV[] = "v";
- // Gives the per-module maximal V-logging levels to override the value
- // given by --v. E.g. "my_module=2,foo*=3" would change the logging
- // level for all code in source files "my_module.*" and "foo*.*"
- // ("-inl" suffixes are also disregarded for this matching).
- //
- // Any pattern containing a forward or backward slash will be tested
- // against the whole pathname and not just the module. E.g.,
- // "*/foo/bar/*=2" would change the logging level for all code in
- // source files under a "foo/bar" directory.
- const char kVModule[] = "vmodule";
- // Will wait for 60 seconds for a debugger to come to attach to the process.
- const char kWaitForDebugger[] = "wait-for-debugger";
- #if BUILDFLAG(IS_WIN)
- // Disable high-resolution timer on Windows.
- const char kDisableHighResTimer[] = "disable-highres-timer";
- // Disables the USB keyboard detection for blocking the OSK on Win8+.
- const char kDisableUsbKeyboardDetect[] = "disable-usb-keyboard-detect";
- #endif
- // TODO(crbug.com/1052397): Revisit the macro expression once build flag switch
- // of lacros-chrome is complete.
- #if BUILDFLAG(IS_LINUX) && !BUILDFLAG(IS_CHROMEOS_ASH) && \
- !BUILDFLAG(IS_CHROMEOS_LACROS)
- // The /dev/shm partition is too small in certain VM environments, causing
- // Chrome to fail or crash (see http://crbug.com/715363). Use this flag to
- // work-around this issue (a temporary directory will always be used to create
- // anonymous shared memory files).
- const char kDisableDevShmUsage[] = "disable-dev-shm-usage";
- #endif
- #if BUILDFLAG(IS_POSIX)
- // Used for turning on Breakpad crash reporting in a debug environment where
- // crash reporting is typically compiled but disabled.
- const char kEnableCrashReporterForTesting[] =
- "enable-crash-reporter-for-testing";
- #endif
- #if BUILDFLAG(IS_ANDROID)
- // Enables the reached code profiler that samples all threads in all processes
- // to determine which functions are almost never executed.
- const char kEnableReachedCodeProfiler[] = "enable-reached-code-profiler";
- // Specifies the profiling interval in microseconds for reached code profiler.
- const char kReachedCodeSamplingIntervalUs[] =
- "reached-code-sampling-interval-us";
- // Default country code to be used for search engine localization.
- const char kDefaultCountryCodeAtInstall[] = "default-country-code";
- // Adds additional thread idle time information into the trace event output.
- const char kEnableIdleTracing[] = "enable-idle-tracing";
- // The field trial parameters and their values when testing changes locally.
- const char kForceFieldTrialParams[] = "force-fieldtrial-params";
- #endif
- #if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
- // TODO(crbug.com/1176772): Remove kEnableCrashpad and IsCrashpadEnabled() when
- // Crashpad is fully enabled on Linux. Indicates that Crashpad should be
- // enabled.
- extern const char kEnableCrashpad[] = "enable-crashpad";
- #endif
- #if BUILDFLAG(IS_CHROMEOS)
- // Override the default scheduling boosting value for urgent tasks.
- // This can be adjusted if a specific chromeos device shows better perf/power
- // ratio (e.g. by running video conference tests).
- // Currently, this values directs to linux scheduler's utilization min clamp.
- // Range is 0(no biased load) ~ 100(mamximum load value).
- const char kSchedulerBoostUrgent[] = "scheduler-boost-urgent";
- #endif
- } // namespace switches
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