* rtems/score/cpu.h: Add RTEMS_COMPILER_NO_RETURN_ATTRIBUTE to
_CPU_Context_restore() because it does not return. Telling GCC this
avoids generation of dead code.
PR 1681/cpukit
* rtems/score/cpu.h: With the percpu patch, ASM uses
INTERRUPT_STACK_HIGH instead of _CPU_Interrupt_stack_high. The
sparc64 was still using the old variable, which was declared in its
cpu.h file. This patch comments out the declaration and switch to
using INTERRUPT_STACK_HIGH.
PR 1635/cpukit
* rtems/score/types.h: Refactoring of priority handling, to isolate the
bitmap implementation of priorities in the supercore so that priority
management is a little more modular. This change is in anticipation
of scheduler implementations that can select how they manage tracking
priority levels / finding the highest priority ready task. Note that
most of the changes here are simple renaming, to clarify the use of
the bitmap-based priority management.
