6. RTEMS Specific Commands

6.1. Introduction

The RTEMS shell has the following RTEMS specific commands:

  • rtems - Display RTEMS specific detail

  • shutdown - Shutdown the system

  • cpuinfo - print per-processor information

  • cpuuse - print or reset per thread cpu usage

  • stackuse - print per thread stack usage

  • perioduse - print or reset per period usage

  • profreport - print a profiling report

  • wkspace - Display information on Executive Workspace

  • config - Show the system configuration.

  • itask - List init tasks for the system

  • extension - Display information about extensions

  • task - Display information about tasks

  • queue - Display information about message queues

  • sema - display information about semaphores

  • region - display information about regions

  • part - display information about partitions

  • object - Display information about RTEMS objects

  • driver - Display the RTEMS device driver table

  • dname - Displays information about named drivers

  • pthread - Displays information about POSIX threads

6.2. Commands

This section details the RTEMS Specific Commands available. A subsection is dedicated to each of the commands and describes the behavior and configuration of that command as well as providing an example usage.

6.2.1. rtems - RTEMS Details

SYNOPSYS:
rtems
DESCRIPTION:

This command reports various RTEMS specific details such as a the version, CPU and CPU module, BSP name, version of tools and the build options.

EXIT STATUS:

This command returns 0 on success and non-zero if an error is encountered.

NOTES:

The following commands are supported:

  • ver: Version of RTEMS running

  • cpu: CPU name and model

  • bsp: Name of the BSP

  • tools: Version of the tools used to build RTEMS

  • opts: RTEMS build options

  • all: All of the available commands

EXAMPLES:

The following is an example of how to use rtems:

SHLL [/] # rtems
RTEMS: 6.0.0 (071640d310b432d15350188c2ebf086653a0d578)

The version of RTEMS running is displayed. To see the CPU name and moduel enter:

SHLL [/] # rtems cpu
CPU: SPARC (w/FPU)

The help command will list all available commands. The all command will display all avalable output:

SHLL [/] # rtems all
RTEMS: 6.0.0 (071640d310b432d15350188c2ebf086653a0d578)
CPU: SPARC (w/FPU)
BSP: erc32
Tools: 12.1.1 20220622 (RTEMS 6, RSB f4f5d43a98051f7562103aaa2ec7723c628c6947, Newlib ea99f21)
Options: DEBUG POSIX
CONFIGURATION:

This command is included in the default shell command set. When building a custom command set, define CONFIGURE_SHELL_COMMAND_RTEMS to have this command included.

This command can be excluded from the shell command set by defining CONFIGURE_SHELL_NO_COMMAND_RTEMS when all shell commands have been configured.

PROGRAMMING INFORMATION:

The configuration structure for the rtems has the following prototype:

extern rtems_shell_cmd_t rtems_shell_RTEMS_Command;

6.2.2. shutdown - Shutdown the system

SYNOPSYS:
shutdown
DESCRIPTION:

This command is used to shutdown the RTEMS application.

EXIT STATUS:

This command does not return.

NOTES:

NONE

EXAMPLES:

The following is an example of how to use shutdown:

SHLL [/] $ shutdown
System shutting down at user request

The user will not see another prompt and the system will shutdown.

CONFIGURATION:

This command is included in the default shell command set. When building a custom command set, define CONFIGURE_SHELL_COMMAND_SHUTDOWN to have this command included.

This command can be excluded from the shell command set by defining CONFIGURE_SHELL_NO_COMMAND_SHUTDOWN when all shell commands have been configured.

PROGRAMMING INFORMATION:

The configuration structure for the shutdown has the following prototype:

extern rtems_shell_cmd_t rtems_shell_SHUTDOWN_Command;

6.2.3. cpuinfo - print per-processor information

SYNOPSYS:
cpuinfo
DESCRIPTION:

This command may be used to print per-processor information.

EXIT STATUS:

This command returns 0 on success and non-zero if an error is encountered.

EXAMPLES:

The following is an example of how to use cpuinfo:

SHLL [/] $ cpuinfo
-------------------------------------------------------------------------------
                            PER PROCESSOR INFORMATION
-------+--------+--------------+-----------------------------------------------
 INDEX | ONLINE | SCHEDULER ID | SCHEDULER NAME
-------+--------+--------------+-----------------------------------------------
     0 |      1 |   0x0f010001 | UPD

In the above example, the system has only one processor. This processor has the index zero and is online. It is owned by the scheduler with the identifier 0x0f010001 and name UPD.

CONFIGURATION:

This command is included in the default shell command set. When building a custom command set, define CONFIGURE_SHELL_COMMAND_CPUINFO to have this command included.

This command can be excluded from the shell command set by defining CONFIGURE_SHELL_NO_COMMAND_CPUINFO when all shell commands have been configured.

PROGRAMMING INFORMATION:

The cpuinfo is implemented by a C language function which has the following prototype:

int rtems_cpu_info_report(
    const rtems_printer *printer
);

The configuration structure for the cpuinfo has the following prototype:

extern rtems_shell_cmd_t rtems_shell_CPUINFO_Command;

6.2.4. cpuuse - print or reset per thread cpu usage

SYNOPSYS:
cpuuse [-r]
DESCRIPTION:

This command may be used to print a report on the per thread cpu usage or to reset the per thread CPU usage statistics. When invoked with the -r option, the CPU usage statistics are reset.

EXIT STATUS:

This command returns 0 on success and non-zero if an error is encountered.

NOTES:

The granularity of the timing information reported is dependent upon the BSP and the manner in which RTEMS was built. In the default RTEMS configuration, if the BSP supports nanosecond granularity timestamps, then the information reported will be highly accurate. Otherwise, the accuracy of the information reported is limited by the clock tick quantum.

EXAMPLES:

The following is an example of how to use cpuuse:

[/] cpuuse
-------------------------------------------------------------------------------
                              CPU USAGE BY THREAD
------------+----------------------------------------+---------------+---------
 ID         | NAME                                   | SECONDS       | PERCENT
------------+----------------------------------------+---------------+---------
 0x09010001 | IDLE                                   |     11.444381 |  73.938
 0x0a010001 | UI1                                    |      0.206754 |   1.335
 0x0a010002 | BSWP                                   |      0.008277 |   0.053
 0x0a010003 | BRDA                                   |      0.000952 |   0.006
 0x0a010004 | MDIA                                   |      0.000334 |   0.002
 0x0a010005 | TIME                                   |      0.912809 |   5.895
 0x0a010006 | IRQS                                   |      0.004810 |   0.031
 0x0a010007 | swi1: netisr 0                         |      0.002593 |   0.016
 0x0a010008 | kqueue_ctx task                        |      0.000663 |   0.004
 0x0a010009 | swi5: fast task                        |      0.000059 |   0.000
 0x0a01000a | thread taskq                           |      0.000057 |   0.000
 0x0a01000b | swi6: task queu                        |      0.003063 |   0.019
 0x0a01000c | DHCP                                   |      1.391745 |   8.986
 0x0a01000d | FTPa                                   |      0.002203 |   0.014
 0x0a01000e | FTPb                                   |      0.000233 |   0.001
 0x0a01000f | FTPc                                   |      0.000226 |   0.001
 0x0a010010 | FTPd                                   |      0.000228 |   0.001
 0x0a010011 | FTPD                                   |      0.002959 |   0.019
 0x0a010012 | TNTD                                   |      0.001111 |   0.007
 0x0a010013 | SHLL                                   |      1.508445 |   9.736
------------+----------------------------------------+---------------+---------
 TIME SINCE LAST CPU USAGE RESET IN SECONDS:                         15.492171
-------------------------------------------------------------------------------
[/] # cpuuse -r
Resetting CPU Usage information
[/] # cpuuse
-------------------------------------------------------------------------------
                              CPU USAGE BY THREAD
------------+----------------------------------------+---------------+---------
 ID         | NAME                                   | SECONDS       | PERCENT
------------+----------------------------------------+---------------+---------
 0x09010001 | IDLE                                   |      0.000000 |   0.000
 0x0a010001 | UI1                                    |      0.000000 |   0.000
 0x0a010002 | BSWP                                   |      0.000000 |   0.000
 0x0a010003 | BRDA                                   |      0.000000 |   0.000
 0x0a010004 | MDIA                                   |      0.000000 |   0.000
 0x0a010005 | TIME                                   |      0.000000 |   0.000
 0x0a010006 | IRQS                                   |      0.000000 |   0.000
 0x0a010007 | swi1: netisr 0                         |      0.000000 |   0.000
 0x0a010008 | kqueue_ctx task                        |      0.000000 |   0.000
 0x0a010009 | swi5: fast task                        |      0.000000 |   0.000
 0x0a01000a | thread taskq                           |      0.000000 |   0.000
 0x0a01000b | swi6: task queu                        |      0.000000 |   0.000
 0x0a01000c | DHCP                                   |      0.000000 |   0.000
 0x0a01000d | FTPa                                   |      0.000000 |   0.000
 0x0a01000e | FTPb                                   |      0.000000 |   0.000
 0x0a01000f | FTPc                                   |      0.000000 |   0.000
 0x0a010010 | FTPd                                   |      0.000000 |   0.000
 0x0a010011 | FTPD                                   |      0.000000 |   0.000
 0x0a010012 | TNTD                                   |      0.000000 |   0.000
 0x0a010013 | SHLL                                   |      0.016503 |  99.962
------------+----------------------------------------+---------------+---------
 TIME SINCE LAST CPU USAGE RESET IN SECONDS:                          0.016509
-------------------------------------------------------------------------------

In the above example, the system did something for roughly 15 seconds when the first report was generated. The cpuuse -r and cpuuse commands were pasted from another window so were executed with no gap between. In the second report, only the SHLL thread has run since the CPU Usage was reset. It has consumed approximately 16.509 milliseconds of CPU time processing the two commands and generating the output.

CONFIGURATION:

This command is included in the default shell command set. When building a custom command set, define CONFIGURE_SHELL_COMMAND_CPUUSE to have this command included.

This command can be excluded from the shell command set by defining CONFIGURE_SHELL_NO_COMMAND_CPUUSE when all shell commands have been configured.

PROGRAMMING INFORMATION:

The cpuuse is implemented by a C language function which has the following prototype:

int rtems_shell_rtems_main_cpuuse(
   int    argc,
   char **argv
);

The configuration structure for the cpuuse has the following prototype:

extern rtems_shell_cmd_t rtems_shell_CPUUSE_Command;

6.2.5. stackuse - print per thread stack usage

SYNOPSYS:
stackuse
DESCRIPTION:

This command prints a Stack Usage Report for all of the tasks and threads in the system. On systems which support it, the usage of the interrupt stack is also included in the report.

EXIT STATUS:

This command always succeeds and returns 0.

NOTES:

The CONFIGURE_STACK_CHECKER_ENABLED confdefs.h constant must be defined when the application is configured for this command to have any information to report.

EXAMPLES:

The following is an example of how to use stackuse:

[/] # stackuse
                             STACK USAGE BY THREAD
ID         NAME                  LOW        HIGH       CURRENT    AVAIL  USED
0x09010001 IDLE                  0x03559960 0x03564055 0x03563728   4080    584
0x0a010001 UI1                   0x03564664 0x03597431 0x03596976  32752   4168
0x0a010002 BSWP                  0x03714576 0x03718671 0x03718408   4080    564
0x0a010003 BRDA                  0x03718680 0x03722775 0x03722480   4080    596
0x0a010004 MDIA                  0x03722808 0x03755575 0x03755288  32752    588
0x0a010005 TIME                  0x03755664 0x03788431 0x03788168  32752   1448
0x0a010006 IRQS                  0x03788440 0x03821207 0x03820952  32752    608
0x0a010007 swi1: netisr 0        0x03896880 0x03929647 0x03929376  32752    820
0x0a010008 kqueue_ctx task       0x03929872 0x03962639 0x03962392  32752    580
0x0a010009 swi5: fast task       0x03963088 0x03995855 0x03995584  32752    572
0x0a01000a thread taskq          0x03996080 0x04028847 0x04028600  32752    548
0x0a01000b swi6: task queu       0x04029296 0x04062063 0x04061792  32752   1364
0x0a01000c DHCP                  0x04250192 0x04258383 0x04257288   8176   2764
0x0a01000d FTPa                  0x04258792 0x04266983 0x04265792   8176   1548
0x0a01000e FTPb                  0x04267120 0x04275311 0x04274120   8176   1496
0x0a01000f FTPc                  0x04275448 0x04283639 0x04282448   8176   1496
0x0a010010 FTPd                  0x04283776 0x04291967 0x04290776   8176   1496
0x0a010011 FTPD                  0x04292104 0x04296199 0x04295784   4080    772
0x0a010012 TNTD                  0x04297088 0x04329855 0x04329368  32752    804
0x0a010013 SHLL                  0x04329976 0x04346359 0x04344576  16368   3616
CONFIGURATION:

This command is included in the default shell command set. When building a custom command set, define CONFIGURE_SHELL_COMMAND_STACKUSE to have this command included.

This command can be excluded from the shell command set by defining CONFIGURE_SHELL_NO_COMMAND_STACKUSE when all shell commands have been configured.

PROGRAMMING INFORMATION:

The stackuse is implemented by a C language function which has the following prototype:

int rtems_shell_rtems_main_stackuse(
    int    argc,
    char **argv
);

The configuration structure for the stackuse has the following prototype:

extern rtems_shell_cmd_t rtems_shell_STACKUSE_Command;

6.2.6. perioduse - print or reset per period usage

SYNOPSYS:
perioduse [-r]
DESCRIPTION:

This command may be used to print a statistics report on the rate monotonic periods in the application or to reset the rate monotonic period usage statistics. When invoked with the -r option, the usage statistics are reset.

EXIT STATUS:

This command returns 0 on success and non-zero if an error is encountered.

NOTES:

The granularity of the timing information reported is dependent upon the BSP and the manner in which RTEMS was built. In the default RTEMS configuration, if the BSP supports nanosecond granularity timestamps, then the information reported will be highly accurate. Otherwise, the accuracy of the information reported is limited by the clock tick quantum.

EXAMPLES:

The following is an example of how to use perioduse:

SHLL [/] $ perioduse
Period information by period
--- CPU times are in seconds ---
--- Wall times are in seconds ---
ID     OWNER COUNT MISSED          CPU TIME                  WALL TIME
MIN/MAX/AVG                MIN/MAX/AVG
0x42010001 TA1    502      0 0:000039/0:042650/0:004158 0:000039/0:020118/0:002848
0x42010002 TA2    502      0 0:000041/0:042657/0:004309 0:000041/0:020116/0:002848
0x42010003 TA3    501      0 0:000041/0:041564/0:003653 0:000041/0:020003/0:002814
0x42010004 TA4    501      0 0:000043/0:044075/0:004911 0:000043/0:020004/0:002814
0x42010005 TA5     10      0 0:000065/0:005413/0:002739 0:000065/1:000457/0:041058
MIN/MAX/AVG                MIN/MAX/AVG
SHLL [/] $ perioduse -r
Resetting Period Usage information
SHLL [/] $ perioduse
--- CPU times are in seconds ---
--- Wall times are in seconds ---
ID     OWNER COUNT MISSED          CPU TIME                  WALL TIME
MIN/MAX/AVG                MIN/MAX/AVG
0x42010001 TA1      0      0
0x42010002 TA2      0      0
0x42010003 TA3      0      0
0x42010004 TA4      0      0
0x42010005 TA5      0      0
CONFIGURATION:

This command is included in the default shell command set. When building a custom command set, define CONFIGURE_SHELL_COMMAND_PERIODUSE to have this command included.

This command can be excluded from the shell command set by defining CONFIGURE_SHELL_NO_COMMAND_PERIODUSE when all shell commands have been configured.

PROGRAMMING INFORMATION:

The perioduse is implemented by a C language function which has the following prototype:

int rtems_shell_rtems_main_perioduse(
    int    argc,
    char **argv
);

The configuration structure for the perioduse has the following prototype:

extern rtems_shell_cmd_t rtems_shell_PERIODUSE_Command;

6.2.7. profreport - print a profiling report

SYNOPSYS:
profreport
DESCRIPTION:

This command may be used to print a profiling report if profiling is built into the RTEMS kernel.

EXIT STATUS:

This command returns 0.

NOTES:

Profiling must be enabled at build configuration time to get profiling information.

EXAMPLES:

The following is an example of how to use profreport:

SHLL [/] $ profreport
<ProfilingReport name="Shell">
<PerCPUProfilingReport processorIndex="0">
<MaxThreadDispatchDisabledTime unit="ns">10447</MaxThreadDispatchDisabledTime>
<MeanThreadDispatchDisabledTime unit="ns">2</MeanThreadDispatchDisabledTime>
<TotalThreadDispatchDisabledTime unit="ns">195926627</TotalThreadDispatchDisabledTime>
<ThreadDispatchDisabledCount>77908688</ThreadDispatchDisabledCount>
<MaxInterruptDelay unit="ns">0</MaxInterruptDelay>
<MaxInterruptTime unit="ns">688</MaxInterruptTime>
<MeanInterruptTime unit="ns">127</MeanInterruptTime>
<TotalInterruptTime unit="ns">282651157</TotalInterruptTime>
<InterruptCount>2215855</InterruptCount>
</PerCPUProfilingReport>
<PerCPUProfilingReport processorIndex="1">
<MaxThreadDispatchDisabledTime unit="ns">9053</MaxThreadDispatchDisabledTime>
<MeanThreadDispatchDisabledTime unit="ns">41</MeanThreadDispatchDisabledTime>
<TotalThreadDispatchDisabledTime unit="ns">3053830335</TotalThreadDispatchDisabledTime>
<ThreadDispatchDisabledCount>73334202</ThreadDispatchDisabledCount>
<MaxInterruptDelay unit="ns">0</MaxInterruptDelay>
<MaxInterruptTime unit="ns">57</MaxInterruptTime>
<MeanInterruptTime unit="ns">35</MeanInterruptTime>
<TotalInterruptTime unit="ns">76980203</TotalInterruptTime>
<InterruptCount>2141179</InterruptCount>
</PerCPUProfilingReport>
<SMPLockProfilingReport name="SMP lock stats">
<MaxAcquireTime unit="ns">608</MaxAcquireTime>
<MaxSectionTime unit="ns">1387</MaxSectionTime>
<MeanAcquireTime unit="ns">112</MeanAcquireTime>
<MeanSectionTime unit="ns">338</MeanSectionTime>
<TotalAcquireTime unit="ns">119031</TotalAcquireTime>
<TotalSectionTime unit="ns">357222</TotalSectionTime>
<UsageCount>1055</UsageCount>
<ContentionCount initialQueueLength="0">1055</ContentionCount>
<ContentionCount initialQueueLength="1">0</ContentionCount>
<ContentionCount initialQueueLength="2">0</ContentionCount>
<ContentionCount initialQueueLength="3">0</ContentionCount>
</SMPLockProfilingReport>
<SMPLockProfilingReport name="Giant">
<MaxAcquireTime unit="ns">4186</MaxAcquireTime>
<MaxSectionTime unit="ns">7575</MaxSectionTime>
<MeanAcquireTime unit="ns">160</MeanAcquireTime>
<MeanSectionTime unit="ns">183</MeanSectionTime>
<TotalAcquireTime unit="ns">1772793111</TotalAcquireTime>
<TotalSectionTime unit="ns">2029733879</TotalSectionTime>
<UsageCount>11039140</UsageCount>
<ContentionCount initialQueueLength="0">11037655</ContentionCount>
<ContentionCount initialQueueLength="1">1485</ContentionCount>
<ContentionCount initialQueueLength="2">0</ContentionCount>
<ContentionCount initialQueueLength="3">0</ContentionCount>
</SMPLockProfilingReport>
</ProfilingReport>
CONFIGURATION:

When building a custom command set, define CONFIGURE_SHELL_COMMAND_PROFREPORT to have this command included.

This command can be excluded from the shell command set by defining CONFIGURE_SHELL_NO_COMMAND_PROFREPORT when all shell commands have been configured.

PROGRAMMING INFORMATION:

The configuration structure for the profreport has the following prototype:

extern rtems_shell_cmd_t rtems_shell_PROFREPORT_Command;

6.2.8. wkspace - display information on executive workspace

SYNOPSYS:
wkspace
DESCRIPTION:

This command prints information on the current state of the RTEMS Executive Workspace reported. This includes the following information:

  • Number of free blocks

  • Largest free block

  • Total bytes free

  • Number of used blocks

  • Largest used block

  • Total bytes used

EXIT STATUS:

This command always succeeds and returns 0.

NOTES:

NONE

EXAMPLES:

The following is an example of how to use wkspace:

SHLL [/] $ wkspace
Number of free blocks: 1
Largest free block:    132336
Total bytes free:      132336
Number of used blocks: 36
Largest used block:    16408
Total bytes used:      55344
CONFIGURATION:

This command is included in the default shell command set. When building a custom command set, define CONFIGURE_SHELL_COMMAND_WKSPACE to have this command included.

This command can be excluded from the shell command set by defining CONFIGURE_SHELL_NO_COMMAND_WKSPACE when all shell commands have been configured.

PROGRAMMING INFORMATION:

The wkspace is implemented by a C language function which has the following prototype:

int rtems_shell_rtems_main_wkspace(
    int    argc,
    char **argv
);

The configuration structure for the wkspace has the following prototype:

extern rtems_shell_cmd_t rtems_shell_WKSPACE_Command;

6.2.9. config - show the system configuration.

SYNOPSYS:
config
DESCRIPTION:

This command display information about the RTEMS Configuration.

EXIT STATUS:

This command always succeeds and returns 0.

NOTES:

At this time, it does not report every configuration parameter. This is an area in which user submissions or sponsorship of a developer would be appreciated.

EXAMPLES:

The following is an example of how to use config:

SHLL [/] $ config
INITIAL (startup) Configuration Info

WORKSPACE      start: 0x23d22e0;  size: 0x2dd20
TIME           usec/tick: 10000;  tick/timeslice: 50;  tick/sec: 100
MAXIMUMS       tasks: 20;  timers: 0;  sems: 50;  que's: 20;  ext's: 1
partitions: 0;  regions: 0;  ports: 0;  periods: 0
CONFIGURATION:

This command is included in the default shell command set. When building a custom command set, define CONFIGURE_SHELL_COMMAND_CONFIG to have this command included.

This command can be excluded from the shell command set by defining CONFIGURE_SHELL_NO_COMMAND_CONFIG when all shell commands have been configured.

PROGRAMMING INFORMATION:

The config is implemented by a C language function which has the following prototype:

int rtems_shell_rtems_main_config(
    int    argc,
    char **argv
);

The configuration structure for the config has the following prototype:

extern rtems_shell_cmd_t rtems_shell_CONFIG_Command;

6.2.10. itask - list init tasks for the system

SYNOPSYS:
itask
DESCRIPTION:

This command prints a report on the set of initialization tasks and threads in the system.

EXIT STATUS:

This command always succeeds and returns 0.

NOTES:

At this time, it includes only Classic API Initialization Tasks. This is an area in which user submissions or sponsorship of a developer would be appreciated.

EXAMPLES:

The following is an example of how to use itask:

SHLL [/] $ itask
#    NAME   ENTRY        ARGUMENT    PRIO   MODES  ATTRIBUTES   STACK SIZE
------------------------------------------------------------------------------
0   UI1    [0x2002258] 0 [0x0]        1    nP      DEFAULT     4096 [0x1000]
CONFIGURATION:

This command is included in the default shell command set. When building a custom command set, define CONFIGURE_SHELL_COMMAND_ITASK to have this command included.

This command can be excluded from the shell command set by defining CONFIGURE_SHELL_NO_COMMAND_ITASK when all shell commands have been configured.

PROGRAMMING INFORMATION:

The itask is implemented by a C language function which has the following prototype:

int rtems_shell_rtems_main_itask(
    int    argc,
    char **argv
);

The configuration structure for the itask has the following prototype:

extern rtems_shell_cmd_t rtems_shell_ITASK_Command;

6.2.11. extension - display information about extensions

SYNOPSYS:
extension [id [id ...]]
DESCRIPTION:

When invoked with no arguments, this command prints information on the set of User Extensions currently active in the system.

If invoked with a set of ids as arguments, then just those objects are included in the information printed.

EXIT STATUS:

This command returns 0 on success and non-zero if an error is encountered.

NOTES:

NONE

EXAMPLES:

The following is an example of using the extension command on a system with no user extensions.

SHLL [/] $ extension
ID       NAME
------------------------------------------------------------------------------
CONFIGURATION:

This command is included in the default shell command set. When building a custom command set, define CONFIGURE_SHELL_COMMAND_EXTENSION to have this command included.

This command can be excluded from the shell command set by defining CONFIGURE_SHELL_NO_COMMAND_EXTENSION when all shell commands have been configured.

PROGRAMMING INFORMATION:

The extension is implemented by a C language function which has the following prototype:

int rtems_shell_rtems_main_extension(
    int    argc,
    char **argv
);

The configuration structure for the extension has the following prototype:

extern rtems_shell_cmd_t rtems_shell_EXTENSION_Command;

6.2.12. task - display information about tasks

SYNOPSYS:
task [id [id ...]]
DESCRIPTION:

When invoked with no arguments, this command prints information on the set of Classic API Tasks currently active in the system.

If invoked with a set of ids as arguments, then just those objects are included in the information printed.

EXIT STATUS:

This command returns 0 on success and non-zero if an error is encountered.

NOTES:

NONE

EXAMPLES:

The following is an example of how to use the task on an application with just two Classic API tasks:

SHLL [/] # task
ID       NAME                 SHED PRI STATE  MODES    EVENTS WAITINFO
------------------------------------------------------------------------------
0a010001 UI1                  UPD  254 EV     P:T:nA   NONE
0a010002 SHLL                 UPD  100 READY  P:T:nA   NONE
CONFIGURATION:

This command is included in the default shell command set. When building a custom command set, define CONFIGURE_SHELL_COMMAND_TASK to have this command included.

This command can be excluded from the shell command set by defining CONFIGURE_SHELL_NO_COMMAND_TASK when all shell commands have been configured.

PROGRAMMING INFORMATION:

The task is implemented by a C language function which has the following prototype:

int rtems_shell_rtems_main_task(
    int    argc,
    char **argv
);

The configuration structure for the task has the following prototype:

extern rtems_shell_cmd_t rtems_shell_TASK_Command;

6.2.13. queue - display information about message queues

SYNOPSYS:
queue [id [id ... ]]
DESCRIPTION:

When invoked with no arguments, this command prints information on the set of Classic API Message Queues currently active in the system.

If invoked with a set of ids as arguments, then just those objects are included in the information printed.

EXIT STATUS:

This command returns 0 on success and non-zero if an error is encountered.

NOTES:

NONE

EXAMPLES:

The following is an example of using the queue command on a system with no Classic API Message Queues.

SHLL [/] $ queue
ID       NAME   ATTRIBUTES   PEND   MAXPEND  MAXSIZE
------------------------------------------------------------------------------
CONFIGURATION:

This command is included in the default shell command set. When building a custom command set, define CONFIGURE_SHELL_COMMAND_QUEUE to have this command included.

This command can be excluded from the shell command set by defining CONFIGURE_SHELL_NO_COMMAND_QUEUE when all shell commands have been configured.

PROGRAMMING INFORMATION:

The queue is implemented by a C language function which has the following prototype:

int rtems_shell_rtems_main_queue(
    int    argc,
    char **argv
);

The configuration structure for the queue has the following prototype:

extern rtems_shell_cmd_t rtems_shell_QUEUE_Command;

6.2.14. sema - display information about semaphores

SYNOPSYS:
sema [id [id ... ]]
DESCRIPTION:

When invoked with no arguments, this command prints information on the set of Classic API Semaphores currently active in the system.

If invoked with a set of objects ids as arguments, then just those objects are included in the information printed.

EXIT STATUS:

This command returns 0 on success and non-zero if an error is encountered.

NOTES:

NONE

EXAMPLES:

The following is an example of how to use sema:

SHLL [/] $ sema
ID       NAME   ATTR        PRICEIL CURR_CNT HOLDID
------------------------------------------------------------------------------
1a010001   LBIO   PR:BI:IN      0        1     00000000
1a010002   TRmi   PR:BI:IN      0        1     00000000
1a010003   LBI00  PR:BI:IN      0        1     00000000
1a010004   TRia   PR:BI:IN      0        1     00000000
1a010005   TRoa   PR:BI:IN      0        1     00000000
1a010006   TRxa   <assoc.c: BAD NAME>   0    0 09010001
1a010007   LBI01  PR:BI:IN      0        1     00000000
1a010008   LBI02  PR:BI:IN      0        1     00000000
CONFIGURATION:

This command is included in the default shell command set. When building a custom command set, define CONFIGURE_SHELL_COMMAND_SEMA to have this command included.

This command can be excluded from the shell command set by defining CONFIGURE_SHELL_NO_COMMAND_SEMA when all shell commands have been configured.

PROGRAMMING INFORMATION:

The sema is implemented by a C language function which has the following prototype:

int rtems_shell_rtems_main_sema(
    int    argc,
    char **argv
);

The configuration structure for the sema has the following prototype:

extern rtems_shell_cmd_t rtems_shell_SEMA_Command;

6.2.15. region - display information about regions

SYNOPSYS:
region [id [id ... ]]
DESCRIPTION:

When invoked with no arguments, this command prints information on the set of Classic API Regions currently active in the system.

If invoked with a set of object ids as arguments, then just those object are included in the information printed.

EXIT STATUS:

This command returns 0 on success and non-zero if an error is encountered.

NOTES:

NONE

EXAMPLES:

The following is an example of using the region command on a system with no user extensions.

SHLL [/] $ region
ID       NAME   ATTR        STARTADDR LENGTH    PAGE_SIZE USED_BLOCKS
------------------------------------------------------------------------------
CONFIGURATION:

This command is included in the default shell command set. When building a custom command set, define CONFIGURE_SHELL_COMMAND_REGION to have this command included.

This command can be excluded from the shell command set by defining CONFIGURE_SHELL_NO_COMMAND_REGION when all shell commands have been configured.

PROGRAMMING INFORMATION:

The region is implemented by a C language function which has the following prototype:

int rtems_shell_rtems_main_region(
    int    argc,
    char **argv
);

The configuration structure for the region has the following prototype:

extern rtems_shell_cmd_t rtems_shell_REGION_Command;

6.2.16. part - display information about partitions

SYNOPSYS:
part [id [id ... ]]
DESCRIPTION:

When invoked with no arguments, this command prints information on the set of Classic API Partitions currently active in the system.

If invoked with a set of object ids as arguments, then just those objects are included in the information printed.

EXIT STATUS:

This command returns 0 on success and non-zero if an error is encountered.

NOTES:

NONE

EXAMPLES:

The following is an example of using the part command on a system with no user extensions.

SHLL [/] $ part
ID       NAME   ATTR        STARTADDR LENGTH    BUF_SIZE  USED_BLOCKS
------------------------------------------------------------------------------
CONFIGURATION:

This command is included in the default shell command set. When building a custom command set, define CONFIGURE_SHELL_COMMAND_PART to have this command included.

This command can be excluded from the shell command set by defining CONFIGURE_SHELL_NO_COMMAND_PART when all shell commands have been configured.

PROGRAMMING INFORMATION:

The part is implemented by a C language function which has the following prototype:

int rtems_shell_rtems_main_part(
    int    argc,
    char **argv
);

The configuration structure for the part has the following prototype:

extern rtems_shell_cmd_t rtems_shell_PART_Command;

6.2.17. object - display information about RTEMS objects

SYNOPSYS:
object [id [id ...]]
DESCRIPTION:

When invoked with a set of object ids as arguments, then a report on those objects is printed.

EXIT STATUS:

This command returns 0 on success and non-zero if an error is encountered.

NOTES:

NONE

EXAMPLES:

The following is an example of how to use object:

SHLL [/] $ object 0a010001 1a010002
ID       NAME   PRIO   STAT   MODES  EVENTS   WAITID  WAITARG  NOTES
------------------------------------------------------------------------------
0a010001   UI1      1   SUSP   P:T:nA  NONE
ID       NAME   ATTR        PRICEIL CURR_CNT HOLDID
------------------------------------------------------------------------------
1a010002   TRmi   PR:BI:IN      0        1     00000000
CONFIGURATION:

This command is included in the default shell command set. When building a custom command set, define CONFIGURE_SHELL_COMMAND_OBJECT to have this command included.

This command can be excluded from the shell command set by defining CONFIGURE_SHELL_NO_COMMAND_OBJECT when all shell commands have been configured.

PROGRAMMING INFORMATION:

The object is implemented by a C language function which has the following prototype:

int rtems_shell_rtems_main_object(
    int    argc,
    char **argv
);

The configuration structure for the object has the following prototype:

extern rtems_shell_cmd_t rtems_shell_OBJECT_Command;

6.2.18. driver - display the RTEMS device driver table

SYNOPSYS:
driver [major [major ...]]
DESCRIPTION:

When invoked with no arguments, this command prints information on the set of Device Drivers currently active in the system.

If invoked with a set of major numbers as arguments, then just those Device Drivers are included in the information printed.

EXIT STATUS:

This command returns 0 on success and non-zero if an error is encountered.

NOTES:

NONE

EXAMPLES:

The following is an example of how to use driver:

SHLL [/] $ driver
Major      Entry points
------------------------------------------------------------------------------
0          init: [0x200256c];  control: [0x20024c8]
open: [0x2002518];  close: [0x2002504]
read: [0x20024f0];  write: [0x20024dc]
1          init: [0x20023fc];  control: [0x2002448]
open: [0x0];  close: [0x0]
read: [0x0];  write: [0x0]
SHLL [/] $
CONFIGURATION:

This command is included in the default shell command set. When building a custom command set, define CONFIGURE_SHELL_COMMAND_DRIVER to have this command included.

This command can be excluded from the shell command set by defining CONFIGURE_SHELL_NO_COMMAND_DRIVER when all shell commands have been configured.

PROGRAMMING INFORMATION:

The driver is implemented by a C language function which has the following prototype:

int rtems_shell_rtems_main_driver(
    int    argc,
    char **argv
);

The configuration structure for the driver has the following prototype:

extern rtems_shell_cmd_t rtems_shell_DRIVER_Command;

6.2.19. dname - displays information about named drivers

SYNOPSYS:
dname
DESCRIPTION:

WARNING! This command does not appear to work as of 27 February 2008.

EXIT STATUS:

This command returns 0 on success and non-zero if an error is encountered.

NOTES:

NONE

EXAMPLES:

The following is an example of how to use dname:

EXAMPLE_TBD
CONFIGURATION:

This command is included in the default shell command set. When building a custom command set, define CONFIGURE_SHELL_COMMAND_DNAME to have this command included.

This command can be excluded from the shell command set by defining CONFIGURE_SHELL_NO_COMMAND_DNAME when all shell commands have been configured.

PROGRAMMING INFORMATION:

The dname is implemented by a C language function which has the following prototype:

int rtems_shell_rtems_main_dname(
    int    argc,
    char **argv
);

The configuration structure for the dname has the following prototype:

extern rtems_shell_cmd_t rtems_shell_DNAME_Command;

6.2.20. pthread - display information about POSIX threads

SYNOPSYS:
pthread [id [id ...]]
DESCRIPTION:

When invoked with no arguments, this command prints information on the set of POSIX API threads currently active in the system.

If invoked with a set of ids as arguments, then just those objects are included in the information printed.

EXIT STATUS:

This command returns 0 on success and non-zero if an error is encountered.

NOTES:

This command is only available when the POSIX API is configured.

EXAMPLES:

The following is an example of how to use the task on an application with four POSIX threads:

SHLL [/] $ pthread
ID       NAME           PRI  STATE MODES   EVENTS    WAITID  WAITARG  NOTES
------------------------------------------------------------------------------
0b010002   Main           133 READY  P:T:nA    NONE   43010001 0x7b1148
0b010003   ISR            133 Wcvar  P:T:nA    NONE   43010003 0x7b1148
0b01000c                  133 READY  P:T:nA    NONE   33010002 0x7b1148
0b01000d                  133 Wmutex P:T:nA    NONE   33010002 0x7b1148
CONFIGURATION:

This command is part of the monitor commands which are always available in the shell.

PROGRAMMING INFORMATION:

This command is not directly available for invocation.