[Bug 1922] multiple definition of `_Scheduler_CBS_Server_list'

bugzilla-daemon at rtems.org bugzilla-daemon at rtems.org
Fri Sep 23 16:36:45 UTC 2011


Gedare <giddyup44 at yahoo.com> changed:

           What    |Removed                     |Added
                 CC|                            |benesp16 at fel.cvut.cz,
                   |                            |giddyup44 at yahoo.com

--- Comment #3 from Gedare <giddyup44 at yahoo.com> 2011-09-23 11:36:43 CDT ---
comment #0)
> In "schedulercbs.h" we have:
> /**
>  * List of servers. The @a Scheduler_CBS_Server is the index to the array
>  * of pointers to @a _Scheduler_CBS_Server_list.
>  */
> Scheduler_CBS_Server **_Scheduler_CBS_Server_list;
> Here a "extern" is missing.  It seems that this variable is nowhere defined.

The usual approach for globals in the score is to declare them as SCORE_EXTERN
and then define them in sapi/src/exinit.c.  But since the CBS Server list
depends on a user configure option to enable it, I don't think we want to do
that. Instead would it be OK to place the definition in the
score/src/schedulercbs.c and simply declare the list as extern?

(In reply to comment #1)
> Similar problem in "testsuites/sptests/spcbssched02/system.h":
> /* global variables */
> rtems_id   Task_id;
> rtems_name Task_name;
> rtems_id   Task_id2;
> rtems_name Task_name2;
> rtems_task_priority Priority;
> time_t  Period;
> time_t  Execution;
> time_t  Phase;
> Please avoid definitions of global variables in header files.

I guess this fix is just to declare these globals as extern and to define them
probably in the init.c file.

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