src/sys/bootstrap/meta/bootstrap.cml

// Copyright 2022 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
{
    children: [
        {
            name: "critical-services",
            url: "fuchsia-boot:///critical-services#meta/critical-services.cm",

            // critical-services should start eagerly - the only services it offers may never be called
            // on some builds, so there's no other way to start it. Importantly it hosts the crashsvc
            // and oom handler.
            startup: "eager",
        },
        {
            name: "shutdown_shim",
            url: "fuchsia-boot:///shutdown-shim#meta/shutdown-shim.cm",
        },
    ],
    capabilities: [
        { dictionary: "toolbox" },
        { dictionary: "diagnostics" },
    ],
    offer: [
        {
            config: [ "fuchsia.diagnostics.ExceptionHandlerAvailable" ],
            from: "parent",
            to: "#critical-services",
        },
        {
            config: [ "fuchsia.power.SuspendEnabled" ],
            from: "parent",
            to: "#shutdown_shim",
        },
        {
            protocol: [
                "fuchsia.inspect.InspectSink",
                "fuchsia.logger.LogSink",
            ],
            from: "#archivist",
            to: "self/diagnostics",
        },
        {
            protocol: [ "fuchsia.boot.WriteOnlyLog" ],
            from: "parent",
            to: [
                "#critical-services",
                "#shutdown_shim",
            ],
        },
        {
            protocol: "fuchsia.hardware.power.statecontrol.Admin",
            from: "#shutdown_shim",
            to: "#critical-services",
        },

        // Things shutdown_shim and power_manager need
        {
            protocol: [ "fuchsia.sys2.SystemController" ],
            from: "parent",
            to: "#shutdown_shim",
        },
        {
            protocol: [ "fuchsia.power.system.ActivityGovernor" ],
            from: "#system-activity-governor",
            to: "#shutdown_shim",
            dependency: "weak",
            source_availability: "unknown",
        },
        {
            protocol: [ "fuchsia.power.broker.Topology" ],
            from: "#power-broker",
            to: "#shutdown_shim",
            dependency: "weak",
            source_availability: "unknown",
        },
        {
            dictionary: "diagnostics",
            from: "self",
            to: [
                "#critical-services",
                "#shutdown_shim",
            ],
        },
        {
            runner: "builtin_shutdown_shim",
            from: "parent",
            to: "#shutdown_shim",
        },
        {
            protocol: [
                "fuchsia.exception.Handler",
                "fuchsia.kernel.RootJob",
            ],
            from: "parent",
            to: [ "#critical-services" ],
        },
        {
            directory: "dev-class",
            from: "#devfs-with-pkg",
            as: "input",
            to: "#critical-services",
            subdir: "input",
            dependency: "weak",
        },
        {
            protocol: "fuchsia.diagnostics.host.ArchiveAccessor",
            from: "#archivist/diagnostics-accessors",
            to: "self/toolbox",
        },
        {
            protocol: [ "fuchsia.diagnostics.LogSettings" ],
            from: "#archivist",
            to: "self/toolbox",
        },
    ],
    expose: [
        {
            dictionary: "toolbox",
            from: "self",
        },
        {
            protocol: "fuchsia.hardware.pty.Device",
            from: "#ptysvc",
            source_availability: "unknown",
        },
        {
            protocol: [ "fuchsia.virtualconsole.SessionManager" ],
            from: "#virtual_console",
            source_availability: "unknown",
        },
        {
            protocol: [
                "fuchsia.hardware.power.statecontrol.Admin",
                "fuchsia.hardware.power.statecontrol.RebootMethodsWatcherRegister",
                "fuchsia.hardware.power.statecontrol.ShutdownWatcherRegister",
            ],
            from: "#shutdown_shim",
        },

        // TODO(https://fxbug.dev/389134835): Remove the initiator capability.
        {
            protocol: "fuchsia.power.CollaborativeRebootInitiator",
            from: "#shutdown_shim",
        },
        {
            protocol: "fuchsia.power.internal.CollaborativeRebootScheduler",
            from: "#shutdown_shim",
        },
        {
            service: "fuchsia.power.broker.ElementInfoProviderService",
            from: "#system-activity-governor",
            source_availability: "unknown",
        },
        {
            protocol: "fuchsia.power.button.Monitor",
            from: "#critical-services",
        },
        {
            protocol: "fuchsia.power.cpu.manager.Boost",
            from: "#cpu_manager",
            source_availability: "unknown",
        },
        {
            dictionary: "diagnostics-accessors",
            from: "#archivist",
        },
        {
            protocol: [
                "fuchsia.diagnostics.LogSettings",
                "fuchsia.diagnostics.system.SerialLogControl",
                "fuchsia.logger.Log",
                "fuchsia.logger.LogSink",
            ],
            from: "#archivist",
        },
        {
            dictionary: "diagnostics",
            from: "self",
        },
    ],
}