[RTEMS Project] #3077: SPARC: Add lazy floating point context switching

[RTEMS trac]

#3077: SPARC: Add lazy floating point context switching
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 Reporter:  Sebastian Huber  |      Owner:  Sebastian Huber
     Type:  enhancement      |     Status:  assigned
 Priority:  normal           |  Milestone:  4.12.0
Component:  cpukit           |    Version:
 Severity:  normal           |   Keywords:
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 The uniprocessor floating point context switching is unsafe, e.g. it is
 possible to silently corrupt the floating point context.  The SMP floating
 point switching is safe, however, it doesn't use a deferred switch.
 Implement lazy floating point switching in uniprocessor configurations.
 This fixes test case spcontext01.

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Ticket URL: <http://devel.rtems.org/ticket/3077>
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