src/sys/core/meta/core.cml

// Non-executable realm provisioning components and capabilities that are consistent across
// products.
{
  "children": [
    {
      "name": "appmgr",
      "url": "fuchsia-pkg://fuchsia.com/appmgr#meta/appmgr.cm",
      "startup": "eager",
    },
    {
      "name": "test_manager",
      "url": "fuchsia-pkg://fuchsia.com/test_manager#meta/test_manager.cm",
    },
    {
      "name": "font_provider",
      "url": "fuchsia-pkg://fuchsia.com/fonts#meta/fonts.cm",
    },
  ],
  "expose": [
    // Non-zircon services for svchost
    {
      "protocol": [
        "/svc/fuchsia.amber.Control",
        "/svc/fuchsia.devicesettings.DeviceSettingsManager",
        "/svc/fuchsia.exception.Handler",
        "/svc/fuchsia.cobalt.LoggerFactory",
        "/svc/fuchsia.logger.Log",
        "/svc/fuchsia.logger.LogSink",
        "/svc/fuchsia.net.NameLookup",
        "/svc/fuchsia.net.stack.Log",
        "/svc/fuchsia.net.stack.Stack",
        "/svc/fuchsia.netstack.Netstack",
        "/svc/fuchsia.pkg.PackageResolver",
        "/svc/fuchsia.pkg.RepositoryManager",
        "/svc/fuchsia.pkg.rewrite.Engine",
        "/svc/fuchsia.posix.socket.Provider",
        "/svc/fuchsia.process.Resolver",
        "/svc/fuchsia.sys.Environment",
        "/svc/fuchsia.sys.Launcher",
        "/svc/fuchsia.tracing.controller.Controller",
        "/svc/fuchsia.tracing.provider.Registry",
        "/svc/fuchsia.wlan.service.Wlan",
      ],
      "from": "#appmgr",
    },
    // device_manager needs the hub for the serial console
    {
      "directory": "/hub",
      "from": "#appmgr",
    },
  ],
  "offer": [
    {
      "protocol": [
        "/svc/fuchsia.logger.LogSink",
        "/svc/fuchsia.pkg.FontResolver",
      ],
      "from": "#appmgr",
      "to": [ "#font_provider" ],
    },
    // Passing from root realm to appmgr
    {
      "protocol": [
        "/svc/fuchsia.boot.Arguments",
        "/svc/fuchsia.boot.FactoryItems",
        "/svc/fuchsia.boot.ReadOnlyLog",
        "/svc/fuchsia.boot.RootJob",
        "/svc/fuchsia.boot.RootJobForInspect",
        "/svc/fuchsia.boot.RootResource",
        "/svc/fuchsia.boot.WriteOnlyLog",
        "/svc/fuchsia.kernel.Stats",
        "/svc/fuchsia.process.Launcher",
        "/svc/fuchsia.device.NameProvider",
        "/svc/fuchsia.device.manager.Administrator",
        "/svc/fuchsia.device.manager.DebugDumper",
        "/svc/fuchsia.hardware.power.statecontrol.Admin",
        "/svc/fuchsia.kernel.Counter",
        "/svc/fuchsia.kernel.DebugBroker",
        "/svc/fuchsia.paver.Paver",
        "/svc/fuchsia.scheduler.ProfileProvider",
        "/svc/fuchsia.virtualconsole.SessionManager",
        "/svc/fuchsia.hardware.pty.Device",
        "/svc/fuchsia.sysinfo.SysInfo",
      ],
      "from": "realm",
      "to": [ "#appmgr" ],
    },
    {
      "directory": "/config/data",
      "subdir": "fonts",
      "from": "realm",
      "to": [ "#font_provider" ],
    },
    {
      "protocol": "/svc/fuchsia.fonts.Provider",
      "from": "#font_provider",
      "to": [ "#appmgr" ],
    },
    {
      "protocol": [
        "/svc/fuchsia.test.manager.Harness",
      ],
      "from": "#test_manager",
      "to": [ "#appmgr" ],
    },
    {
      "directory": "/boot",
      "from": "realm",
      "to": [ "#appmgr" ],
    },
    {
      "directory": "/dev",
      "from": "realm",
      "to": [ "#appmgr" ],
    },
    {
      "directory": "/minfs",
      "from": "realm",
      "to": [ "#appmgr" ],
    },
    {
      "directory": "/pkgfs",
      "from": "realm",
      "to": [ "#appmgr" ],
    },
    {
      "directory": "/system",
      "from": "realm",
      "to": [ "#appmgr" ],
    },
    {
      "directory": "/blob",
      "from": "realm",
      "to": [ "#appmgr" ],
    },
    {
      "directory": "/volume",
      "from": "realm",
      "to": [ "#appmgr" ],
    },
    {
      "directory": "/install",
      "from": "realm",
      "to": [ "#appmgr" ],
    },
    {
      "directory": "/tmp",
      "from": "realm",
      "to": [ "#appmgr" ],
    },

    // Offer the ELF runner to children.
    {
      "runner": "elf",
      "from": "realm",
      "to": [
        "#appmgr",
        "#test_manager",
        "#font_provider",
      ],
    },
  ],
}