[RTEMS Project] #2696: Unpredictable errno value returned by sem_wait() in case of semaphore deletion

[RTEMS trac]

#2696: Unpredictable errno value returned by sem_wait() in case of semaphore
deletion
-----------------------------+------------------------------
 Reporter:  sebastian.huber  |       Owner:  sebastian.huber
     Type:  defect           |      Status:  new
 Priority:  normal           |   Milestone:  4.12
Component:  General          |     Version:  4.10
 Severity:  normal           |  Resolution:
 Keywords:                   |
-----------------------------+------------------------------

Comment (by joel.sherrill):

 I went back to the 4.8 branch and the translation was a switch in
 semaphorewaitsupp.c which covered all cases. Also the error returned was
 not -1 but CORE_SEMAPHORE_WAS_DELETED.

 Somewhere along the line, the code was changed to a table lookup and range
 checking was moved to an ifdef DEBUG.

 I have no idea why the status returned is no longer
 CORE_SEMAPHORE_WAS_DELETED which would likely not result in an out of
 range access.

 Did the debug check catch this error? If not, then the debug check is
 insufficient.

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Ticket URL: <http://devel.rtems.org/ticket/2696#comment:1>
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