ChorusOS 5.0 System Administrator's Guide

Configuration Profiles

The ChorusOS operating system provides two pre-defined configuration profiles, the basic profile and the extended profile, to help you select an initial configuration for the operating system. These profiles include or remove certain features in the system.

The extended profile is the default profile, and does not need to be explicitly specified.

The basic configuration profilecorresponds to a realistic configuration, keeping the footprint small. With this configuration, applications are usually embedded in the system image and launched either at boot time or subsequently from the image file system or the boot file system. This configuration uses the flat memory model, to minimize the footprint.

In the basic profile, application actors are loaded at boot time as part of the system image. These actors are also known as boot actors.

When the system boots, actors included in the system image are loaded. For each actor, a thread is created and starts running at the actor's program entry point.

For instructions on building an application actor, embedding it in the system image and running it in the basic profile, consult the ChorusOS 5.0 Application Developer's Guide.

The extended configuration profile corresponds to a reference configuration for telecommunications systems. It includes support for networking using remote IPC over Ethernet and an NFS client. This uses the protected memory model.

Table 2-1 shows the settings of all the features in the extended and basic configuration profiles.

Table 2-1 Microkernel Feature settings in the extended and basic configuration profiles


Name		`extended` profile value	`basic` profile value
Microkernel features
	`USER_MODE`	`true`	`true`
	`ROUND_ROBIN`	`true`	`false`
	`VIRTUAL_ADDRESS_SPACE`	`true`	`false`
	`ON_DEMAND_PAGING` [The `ON_DEMAND` paging feature is platform-dependent. On platforms that do not support the virtual memory model, this can be hidden, using: `configurator -list features`.]	`false`	`false`
	`MONITOR`	`false`	`false`
	`SEM`	`true`	`true`
	`EVENT`	`true`	`true`
	`RTMUTEX`	`false`	`false`
	`SOFTINTR`	`false`	`false`
	`TIMER`	`true`	`true`
	`VTIMER`	`false`	`false`
	`DATE`	`true`	`true`
	`RTC`	`true`	`true`
	`MKSTAT`	`false`	`false`
	`PERF`	`true`	`true`
	`MON`	`true`	`false`
	`IPC`	`true`	`true`
	`IPC_REMOTE`	`false`	`false`
	`MIPC`	`true`	`true`
	`LAPBIND`	`true`	`true`
	`LAPSAFE`	`true`	`true`
	`LOG`	`true`	`true`
	`SYSTEM_DUMP`	`false`	`false`
	`BLACKBOX`	`true`	`true`

Table 2-2 C_INIT Feature Settings and Input Output Manager Feature settings in the extended and basic configuration profiles


Name		`extended` profile value	`basic` profile value
C_INIT features
	`RSH`	`true`	`false`
	`LOCAL_CONSOLE`	`false`	`true`
Input Output Manager features
	`IOM_IPC`	`false`	`false`
	`IOM_OSI`	`false`	`false`
	`DEV_MEM`	`true`	`false`
	`DEV_CDROM`	`true`	`true`
	`DEV_DISK`	`true`	`true`
	`DEV_NVRAM`	`true`	`true`
	`RAM_DISK`	`true`	`true`
	`SCSI_DISK`	`false`	`false`
	`FLASH`	`true`	`true`
	`RAWFLASH`	`true`	`true`
	`OS_GAUGES`	`false`	`false`
	`VTTY`	`false`	`false`
	`WDT`	`false`	`false`
	`FIFOFS`	`true`	`false`
	`FS_MAPPER`	`false`	`false`
	`MSDOSFS`	`true`	`true`
	`UFS`	`false`	`false`
	`ISOFS`	`true`	`true`
	`NFS_CLIENT`	`true`	`false`
	`NFS_SERVER`	`false`	`false`
	`ACTOR_SRCDBG`	`true`	`true`
	`GZ_FILE`	`true`	`false`
	`CORE_DUMP`	`false`	`false`
	`IOM_DEV_MNGT`	`true`	`true`
	`POSIX_MQ`	`false`	`false`
	`POSIX_SHM`	`true`	`false`
	`AF_LOCAL`	`true`	`true`
	`BPF`	`true`	`false`
	`POSIX_SOCKETS`	`true`	`true`
	`PPP`	`false`	`false`
	`SLIP`	`false`	`false`
	`IPv6`	`false`	`false`
	`POSIX_REALTIME_SIGNALS`	`true`	`true`
	`SOLARIS_SYSEVENT`	`false`	`false`
	`HOT_RESTART`	`false`	`false`
	`DRV_MERGE`	`false`	`false`
	`DEBUG_SYSTEM`	`true`	`true`
	`EDB_MONITOR`	`false`	`false`

Note -

The MONITOR feature is an internal feature used only by the C Virtual Machine, (CVM), a compact Java Virtual Machine.

Both configuration profiles include support for system debugging.

You can use one of these configuration profiles as the initial configuration for your system, and add or remove specific feature options using the configurator utility (see "Command-line Configuration Tool"). Once you have created your initial configuration, you can also use the graphical configuration tool ews (see "The Embedded Workshop Graphical Configuration Tool") to manage the configuration.