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The full system profiling functionality is useful for profiling the boot performance of the system. Add a new kernel boot option to start the system with profiling enabled. This lets you disable and view a profile once the system is booted. You can use it by running: ``` $ run.sh qcmd boot_prof ```
89 lines
2.8 KiB
C++
89 lines
2.8 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <AK/HashMap.h>
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#include <AK/Optional.h>
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#include <AK/String.h>
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#include <AK/Vector.h>
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namespace Kernel {
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enum class BootMode {
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Text,
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SelfTest,
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Graphical
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};
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enum class HPETMode {
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Periodic,
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NonPeriodic
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};
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enum class AcpiFeatureLevel {
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Enabled,
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Limited,
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Disabled,
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};
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class CommandLine {
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AK_MAKE_ETERNAL;
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public:
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static void early_initialize(const char* cmd_line);
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static void initialize();
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[[nodiscard]] const String& string() const { return m_string; }
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Optional<String> lookup(const String& key) const;
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[[nodiscard]] bool contains(const String& key) const;
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[[nodiscard]] bool is_boot_profiling_enabled() const;
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[[nodiscard]] bool is_ide_enabled() const;
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[[nodiscard]] bool is_smp_enabled() const;
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[[nodiscard]] bool is_vmmouse_enabled() const;
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[[nodiscard]] bool is_mmio_enabled() const;
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[[nodiscard]] bool is_legacy_time_enabled() const;
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[[nodiscard]] bool is_text_mode() const;
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[[nodiscard]] bool is_force_pio() const;
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[[nodiscard]] AcpiFeatureLevel acpi_feature_level() const;
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[[nodiscard]] BootMode boot_mode() const;
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[[nodiscard]] HPETMode hpet_mode() const;
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[[nodiscard]] String userspace_init() const;
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[[nodiscard]] Vector<String> userspace_init_args() const;
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[[nodiscard]] String root_device() const;
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private:
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CommandLine(const String&);
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String m_string;
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HashMap<String, String> m_params;
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};
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const CommandLine& kernel_command_line();
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}
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